Hierarchical group oriented key management method HGK. - Hidenori Nakamura; Kazuyuki Takagi; Ken-ichi Okada 002; Yutaka Matsushita (ACSAC, 1990)

Group-Oriented Key Management and Authentication Methods. - Yasushi Mutoh; Kazuyuki Takagi; Ken-ichi Okada 002; Yutaka Matsushita (IFIP Congress (2), 1992)

An Approach to Encounters and Interaction in a Virtual Environment. - Norihiko Matsuura; Go Fujino; Ken-ichi Okada 002; Yutaka Matsushita (ACM Conference on Computer Science, 1993)

A Multimedia Synchronization Model Described by Boolean Expressions. - Tatsuo Sato; Joung-Hoon Lim; Ken-ichi Okada 002; Yutaka Matsushita (ACM Conference on Computer Science, 1993)

The Multi-Project Support System based on multiplicity of task. - Koji Tsukada; Ken-ichi Okada 002; Yutaka Matsushita (COMPSAC, 1994)

Multiparty Videoconferencing at Virtual Social Distance: MAJIC Design. - Ken-ichi Okada 002; Fumihiko Maeda; Yusuke Ichikawa; Yutaka Matsushita (CSCW, 1994)

A Database Architecture and Version Control for Group Work. - Takeshi Kamita; Satoshi Ichimura; Ken-ichi Okada 002; Yutaka Matsushita (HICSS (3), 1994)

The ID-based non-interactive group communication key sharing scheme using smart cards. - Hiroyuki Sakakibara; Kazunori Seki; Ken-ichi Okada 002; Yutaka Matsushita (ICNP, 1994)

A Cooperative Support System Based on Multiplicity of Task. - Koji Tsukada; Ken-ichi Okada 002; Yutaka Matsushita (IFIP Congress (2), 1994)

MAJIC Videoconferencing System: Experiments, Evaluation and Improvement. - Yusuke Ichikawa; Ken-ichi Okada 002; Giseok Jeong; Shunsuke Tanaka; Yutaka Matsushita (ECSCW, 1995)

Design and evaluation of MAJIC videoconferencing system. - Ken-ichi Okada 002; Yusuke Ichikawa; Giseok Jeong; Syunsuke Tanaka; Yutaka Matsushita (INTERACT, 1995)

Evaluations of gestural animations to convey feelings in asynchronous network communication. - Tomoo Inoue; Ken-ichi Okada 002; Yutaka Matsushita (ISADS, 1995)

Learning from TV Programs: Application of TV Presentation to a Videoconferencing System. - Tomoo Inoue; Ken-ichi Okada 002; Yutaka Matsushita (ACM Symposium on User Interface Software and Technology, 1995)

MAJIC and DesktopMAJIC Conferencing System (Video Program). - Ken-ichi Okada 002; Shunsuke Tanaka; Yutaka Matsushita (CSCW, 1996)

Auditory Browsing for Acquisition of Information in Cyberspace. - Naoto Oki; Kunio Teramoto; Ken-ichi Okada 002; Yutaka Matsushita (ICDE, 1996)

Valentine: an environment for home office worker providing informal communication and personal space. - Shinkuro Honda; Hironari Tomioka; Takaaki Kimura; Takaharu Oosawa; Ken-ichi Okada 002; Yutaka Matsushita (GROUP, 1997)

Integration of face-to-face and video-mediated meetings: HERMES. - Tomoo Inoue; Ken-ichi Okada 002; Yutaka Matsushita (GROUP, 1997)

A Virtual Office Environment for Supporting Informal Communications and Securing Personal Space. - Shinkuro Honda; Takaaki Kimura; Hironari Tomioka; Takaharu Oosawa; Ken-ichi Okada 002; Yutaka Matsushita (HCI (2), 1997)

MC^2 Platform for Mobile and Wireless Computing. - Hiroshi Shigeno; Yoshihiro Fujimaki; Hiro Ohmori; Ken-ichi Okada 002; Yutaka Matsushita (LCN, 1997)

A Virtual Office Environment Based on a Shared Room Realizing Awareness Space and Transmitting Awareness Information. - Shinkuro Honda; Hironari Tomioka; Takaaki Kimura; Takaharu Ohsawa; Ken-ichi Okada 002; Yutaka Matsushita (ACM Symposium on User Interface Software and Technology, 1997)

Interworkflow System: Coordination of Each Workflow amoong Multiple Organizations. - Keiko Hiramatsu; Ken-ichi Okada 002; Yutaka Matsushita; Hamo Hayami (CoopIS, 1998)

Design and Implementation of Agent-Based Flexible Asynchronous Messaging System. - Jiro Sekiba; Gen Kitagata; Takuo Suganuma; Tetsuo Kinoshita; Ken-ichi Okada 002; Norio Shiratori (ICPADS, 1998)

A Home Office System Based on a Virtual Shared Room: An Environment Corresponding to Degree of Concentration. - Shinkuro Honda; Ken-ichi Okada 002; Yutaka Matsushita (WWCA, 1998)

Perspective layered visualization of collaborative workspaces. - Hidekazu Shiozawa; Ken-ichi Okada 002; Yutaka Matsushita (GROUP, 1999)

Effects of Video Expression in Videoconferencing. - Tomoo Inoue; Ken-ichi Okada 002; Yutaka Matsushita (HICSS, 1999)

Perspective Layered Workspace for Collaborative Work. - Hidekazu Shiozawa; Jun-ya Noda; Ken-ichi Okada 002; Yutaka Matsushita (ICPP Workshops, 1999)

3D Interactive Visualization for Inter-Cell Dependencies of Spreadsheets. - Hidekazu Shiozawa; Ken-ichi Okada 002; Yutaka Matsushita (INFOVIS, 1999)

A company-office system "Valentine" providing informal communication and personal space based on 3D virtual space and avatars. - Shinkuro Honda; Hironari Tomioka; Takaaki Kimura; Takaharu Oosawa; Ken-ichi Okada 002; Yutaka Matsushita (Inf. Softw. Technol., 1999)

A Survey of Transport Layer Protocols Suited for Real-Time Data Delivery over Diffserv-Capable Networks. - Yoko Noda; Tatsuhiko Sakai; Hiroshi Shigeno; Ken-ichi Okada 002; Yutaka Matsushita (ICDCS Workshops, 2002)

An Integrated Distance Learning System Capable of Supporting Interactions for Asynchronous Distance Learning. - Shimon Sakai; Tsunenobu Narahara; Naoaki Mashita; Hiroshi Shigeno; Ken-ichi Okada 002; Yutaka Matsushita (ICDCS Workshops, 2002)

A Metadata-Based Environment Adaptive Review System for Digital Broadcasting. - Hisayuki Ohmata; Masahito Ito; Hiroshi Shigeno; Ken-ichi Okada 002; Yutaka Matsushita; Hirokazu Konishi; Mikihiro Ueno; Eisuke Nakasu (LCN, 2002)

Automating Detection of Faults in TCP Implementations. - Hiroshi Inamura; Osamu Takahashi; Taro Ishikawa; Hiroshi Shigeno; Ken-ichi Okada 002 (AINA (1), 2004)

Stream Authentication Scheme for the use over the IP Telephony. - Shintaro Ueda; Nobutaka Kawaguchi; Hiroshi Shigeno; Ken-ichi Okada 002 (AINA (2), 2004)

SRF TCP: A TCP-Friendly and Fair Congestion Control Method for High-Speed Networks. - Masahiko Fukuhara; Fumiaki Hirose; Tomoya Hatano; Hiroshi Shigeno; Ken-ichi Okada 002 (OPODIS, 2004)

DACS: Distance Aware Collaboration System for Face-to-Face Meetings. - Hironori Egi; Naoto Ohsuga; Airi Nakada; Hiroshi Shigeno; Ken-ichi Okada 002 (SAINT Workshops, 2004)

e-MulCS : Multi-Party Conference System with Virtual Space and the Intuitive Input Interface. - Kensaku Honda; Kentaro Fukui; Hiroshi Shigeno; Ken-ichi Okada 002 (SAINT, 2004)

Introducing Grammar of the Film Language Into Automatic Shooting for Face-to-Face Meetings. - Akifumi Inoue; Hiroshi Shigeno; Ken-ichi Okada 002; Yutaka Matsushita (SAINT, 2004)

A CSCW System for Distributed Search/Collection Tasks Using Wearable Computers. - Tetsuo Sumiya; Akifumi Inoue; Sadayuki Shiba; Junya Kato; Hiroshi Shigeno; Ken-ichi Okada 002 (WMCSA, 2004)

An Efficient Method of Supporting Interactions for an Integrated Distance Learning System. - Shimon Sakai; Naoaki Mashita; Yasuhiro Yoshimitsu; Hiroshi Shigeno; Ken-ichi Okada 002; Yutaka Matsushita (Int. J. Distance Educ. Technol., 2004)

An Image Authentication Scheme Considering Privacy $#8212; A First Step towards Surveillance Camera Authentication. - Nobutaka Kawaguchi; Shintaro Ueda; Naohiro Obata; Hiroshi Shigeno; Ken-ichi Okada 002 (AINA, 2005)

Proposal of a Map-Making System for Mobile Learning that Uses Subjective Geographic Recognition. - Tomoo Inoue; Yuri Yamamoto; Keisuke Nakazawa; Hiroshi Shigeno; Ken-ichi Okada 002 (ICALT, 2005)

Tangible Collaborative Learning Support System for Spatio-Temporal Contents. - Yuta Maruyama; Keigo Kitahara; Tomoo Inoue; Hiroshi Shigeno; Ken-ichi Okada 002 (ICCE, 2005)

A Two-Level ECN Marking for Fair Bandwidth Allocation between HSTCP and TCP Reno. - Fumiaki Hirose; Masahiko Fukuhara; Tomoya Hatano; Hiroshi Shigeno; Ken-ichi Okada 002 (ICDCS Workshops, 2005)

Dynamic Communication Zone Control Method on Autonomous Decentralized Based Roadside Network Infrastructure. - Masashi Hiraiwa; Hiromitsu Asakura; Tateki Narita; Tomoyuki Yashiro; Hiroshi Shigeno; Ken-ichi Okada 002 (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005)

ACTM: Anomaly Connection Tree Method to detect Silent Worms. - Nobutaka Kawaguchi; Yusuke Azuma; Shintaro Ueda; Hiroshi Shigeno; Ken-ichi Okada 002 (AINA (1), 2006)

Authenticating Video Streams. - Shintaro Ueda; Shin-ichiro Kaneko; Nobutaka Kawaguchi; Hiroshi Shigeno; Ken-ichi Okada 002 (AINA (1), 2006)

A Communication Model of Scents Mediated by Sense-Descriptive Adjectives. - Yuichi Bannai; Masayuki Ishizawa; Hiroshi Shigeno; Ken-ichi Okada 002 (ICAT, 2006)

A Tangible User Interface for Remote Collaboration System Using Mixed Reality. - Yuichi Bannai; Hidekazu Tamaki; Yuji Suzuki; Hiroshi Shigeno; Ken-ichi Okada 002 (ICAT, 2006)

Media Synchronization Method for Video Hypermedia Application Based on Extended Event Model. - Hironobu Abe; Hiroshi Shigeno; Ken-ichi Okada 002 (ICME, 2006)

Use of human geographic recognition to reduce GPS error in mobile mapmaking learning. - Tomoo Inoue; Keisuke Nakazawa; Yuri Yamamoto; Hiroshi Shigeno; Ken-ichi Okada 002 (ICN/ICONS/MCL, 2006)

A Real-Time Stream Authentication Scheme for Video Streams. - Shintaro Ueda; Shin-ichiro Kaneko; Nobutaka Kawaguchi; Hiroshi Shigeno; Ken-ichi Okada 002 (Inf. Media Technol., 2006)

Detection of Silent Worms using Anomaly Connection Tree. - Nobutaka Kawaguchi; Hiroshi Shigeno; Ken-ichi Okada 002 (AINA, 2007)

A Proposal of Indexing Conference Movies with Thinking States. - Akihiro Miyata; Takefumi Hayashi; Shota Yamamoto; Masaki Hayashi; Hiroshi Shigeno; Ken-ichi Okada 002 (C5, 2007)

Evaluation of Content Handling Methods for Tabletop Interface. - Ryoko Ishido; Keigo Kitahara; Tomoo Inoue; Ken-ichi Okada 002 (HCI (2), 2007)

Presentation Technique of Scent to Avoid Olfactory Adaptation. - Ami Kadowaki; Junta Sato; Yuichi Bannai; Ken-ichi Okada 002 (ICAT, 2007)

Early containment of worms using dummy addresses and connection trace back. - Taro Inaba; Nobutaka Kawaguchi; Shinya Tahara; Hiroshi Shigeno; Ken-ichi Okada 002 (ICPADS, 2007)

A Fundamental Study for Participating in Multiple Teleconferences. - Hironori Egi; Hisashi Anzai; Itaru Takata; Ken-ichi Okada 002 (INTERACT (2), 2007)

d-ACTM: Distributed Anomaly Connection Tree Method to detect Silent Worms. - Nobutaka Kawaguchi; Hiroshi Shigeno; Ken-ichi Okada 002 (IPCCC, 2007)

TCP-friendly Congestion Control for HighSpeed Network. - Tomoya Hatano; Hiroshi Shigeno; Ken-ichi Okada 002 (SAINT, 2007)

NAL Level Stream Authentication for H.264/AVC. - Shintaro Ueda; Hiroshi Shigeno; Ken-ichi Okada 002 (Inf. Media Technol., 2007)

Development and Evaluation of a Collaborative Virtual Environment Supporting Self Feedbacks of Electroencephalogram. - Akihiro Miyata; Shota Yamamoto; Masaki Hayashi; Takefumi Hayashi; Hiroshi Shigeno; Ken-ichi Okada 002 (AINA, 2008)

Distributed Secure Virtual File System Using FUSE. - Shin Tezuka; Akifumi Inoue; Ryuya Uda; Ken-ichi Okada 002 (II3E, 2008)

A Distributed Detection of Hit-List Worms. - Nobutaka Kawaguchi; Hiroshi Shigeno; Ken-ichi Okada 002 (ICC, 2008)

Symmetric Model of Remote Collaborative MR Using Tangible Replicas. - Shun Yamamoto; Hidekazu Tamaki; Yuta Okajima; Ken-ichi Okada 002; Yuichi Bannai (VR, 2008)

d-ACTM/VT: A Distributed Virtual AC Tree Detection Method. - Nobutaka Kawaguchi; Hiroshi Shigeno; Ken-ichi Okada 002 (Inf. Media Technol., 2008)

The Efficiency Method of Sanitizable Signature Scheme for SMF. - Hirokazu Miyata; Ryuya Uda; Kenichi Okada 002 (AINA, 2009)

Distributed Secure Virtual File System Using Hysteresis Signatures. - Shin Tezuka; Hiroko Tomori; Ryuya Uda; Ken-ichi Okada 002 (AINA, 2009)

Worm Path Identification Using Visualization System. - Seiji Shibaguchi; Yuki Nakayama; Ken-ichi Okada 002 (CSE (3), 2009)

Scent Presentation Expressing Two Smells of Different Intensity Simultaneously. - Daisuke Noguchi; Kaori Ohtsu; Yuichi Bannai; Ken-ichi Okada 002 (EGVE/ICAT/EuroVR, 2009)

The study of the knowledge optimization tool. - Akira Otsuki; Kenichi Okada 002 (GEC Summit, 2009)

DiamondTheater: A System for Reproducing Theater and Supporting Creative Activities. - Tatsushi Takeuchi; Koichiro Watanabe; Tomoo Inoue; Ken-ichi Okada 002 (HCI (4), 2009)

Message Sending Method Using Patients' Priority for Medical Sensor Network. - Hiromitsu Tomozawa; Kiyoshi Oguchi; Hiroshi Shigeno; Ken-ichi Okada 002 (ICDCS Workshops, 2009)

Grasping contextual awareness inside aworkspace at the entrance to support group interaction. - Hironori Egi; Hiroshi Shigeno; Ken-ichi Okada 002 (ICITST, 2009)

Measurement of Olfactory Characteristics for Two Kinds of Scent in a Single Breath. - Kaori Ohtsu; Junta Sato; Yuichi Bannai; Ken-ichi Okada 002 (INTERACT (2), 2009)

Construction of Optimized Knowledge and New Knowledge Creation Support Tool. - Akira Otsuki; Kenichi Okada 002 (KES-AMSTA, 2009)

Scent Presentation Technique of Pulse Ejection Synchronized with Breathing. - Kaori Ohtsu; Junta Sato; Yuichi Bannai; Ken-ichi Okada 002 (SAINT, 2009)

An Instruction Method for Displaying Trajectory of an Object in Remote Collaborative MR on the Basis of Changes in Relative Coordinates. - Yuta Okajima; Shun Yamamoto; Yuichi Bannai; Ken-ichi Okada 002 (SAINT, 2009)

Effective Presentation Technique of Scent Using Small Ejection Quantities of Odor. - Junta Sato; Kaori Ohtsu; Yuichi Bannai; Ken-ichi Okada 002 (VR, 2009)

Estimation of thinking states in cyberspace using multiple physiological parameters. - Hiromu Miyashita; Ryo Segawa; Ken-ichi Okada 002 (VRST, 2009)

Development of Hi-Speed X.509 Certification Path Validation System. - Takahiro Fujishiro; Akane Sato; Yoko Kumagai; Tadashi Kaji; Kenichi Okada 002 (AINA Workshops, 2010)

Examination of Selection for Relay Nodes Adapted to Priority of Transportation in Triage Network. - Hiroki Tamura; Hikaru Kobayashi; Hiroshi Shigeno; Ken-ichi Okada 002 (BWCCA, 2010)

Efficient Routing Using Node Pull Out Estimation. - Hikaru Kobayashi; Hiromitsu Tomozawa; Hiroshi Shigeno; Ken-ichi Okada 002 (CISIS, 2010)

A Visualization System for Analyzing Information Leakage. - Yuki Nakayama; Seiji Shibaguchi; Ken-ichi Okada 002 (IFIP Int. Conf. Digital Forensics, 2010)

Augmentation of check in/out model for remote collaboration with Mixed Reality. - Ginga Kamei; Takeshi Matsuyama; Ken-ichi Okada 002 (ISMAR, 2010)

Ink jet olfactory display enabling instantaneous switches of scents. - Sayumi Sugimoto; Daisuke Noguchi; Yuichi Bannai; Ken-ichi Okada 002 (ACM Multimedia, 2010)

Proposal of Walkable Path Discovery Technique in Triage Spot. - Hikaru Kobayashi; Hiromitsu Tomozawa; Hiroki Tamura; Hiroshi Shigeno; Ken-ichi Okada 002 (NBiS, 2010)

Development of a High-Performance Olfactory Display and Measurement of Olfactory Characteristics for Pulse Ejections. - Ami Kadowaki; Daisuke Noguchi; Sayumi Sugimoto; Yuichi Bannai; Ken-ichi Okada 002 (SAINT, 2010)

Proposal of the Disaster-Relief Training System Using the Electronic Triage Tag. - Hiroaki Kojima; Kentaro Nagahashi; Ken-ichi Okada 002 (AINA, 2011)

Time characteristics of olfaction in a single breath. - Daisuke Noguchi; Sayumi Sugimoto; Yuichi Bannai; Ken-ichi Okada 002 (CHI, 2011)

Visualization System for Log Analysis with Probabilities of Incorrect Operation. - Chifumi Nishioka; Masahiro Kozaki; Ken-ichi Okada 002 (ICPADS, 2011)

Presentation Technique of Scents Using Mobile Olfactory Display for Digital Signage. - Sayumi Sugimoto; Ryo Segawa; Daisuke Noguchi; Yuichi Bannai; Ken-ichi Okada 002 (INTERACT (3), 2011)

Injured person information management during second triage. - Yuki Takahashi; Hiroaki Kojima; Ken-ichi Okada 002 (UIST, 2011)

Hit-list Worm Detection Using Distributed Sliding Window. - Nobutaka Kawaguchi; Hiroshi Shigeno; Ken-ichi Okada 002 (J. Inf. Process., 2011)

Instruction for Remote MR Cooperative Work with Captured Still Worker's View Video. - Makoto Kikkawa; Ginga Kamei; Ken-ichi Okada 002 (AINA, 2012)

ADEC: Assured Deletion and Verifiable Version Control for Cloud Storage. - Shin Tezuka; Ryuya Uda; Kenichi Okada 002 (AINA, 2012)

Virtual stage linked with a physical miniature stage to support multiple users in planning theatrical productions. - Yosuke Horiuchi; Tomoo Inoue; Ken-ichi Okada 002 (IUI, 2012)

Adding Scent to Television Broadcasts by Using Closed Caption Data. - Tatsuki Tatara; Makoto Kikkawa; Ken-ichi Okada 002 (AINA, 2013)

Multi-view is useful for more accurate understanding of object in a virtual soccer field. - Kasumi Tarukawa; Tomoo Inoue; Ken-ichi Okada 002 (CSCWD, 2013)

Olfactory Measurement System to Quantify the Ability to Smell Using Pulse Ejection. - Aya Fukasawa; Risa Suzuki; Ken-ichi Okada 002 (ICHI, 2013)

Soccer tactics analysis supporting system displaying the player's actions in virtual space. - Satoshi Gondo; Tomoo Inoue; Kasumi Tarukawa; Ken-ichi Okada 002 (CSCWD, 2014)

Using a Human-Shaped Input Device for Telerehabilitation. - Yuki Tayama; Misaki Hagino; Ken-ichi Okada 002 (ICHI, 2014)

System for Presenting and Creating Smell Effects to Video. - Risa Suzuki; Shutaro Homma; Eri Matsuura; Ken-ichi Okada 002 (ICMI, 2014)

Response Time in Switching Scents When Converting Scenes. - Shutaro Homma; Eri Matsuura; Sayaka Matsumoto; Shohei Horiguchi; Ken-ichi Okada 002 (CIT/IUCC/DASC/PICom, 2015)

MR Manual and Authoring Tool with Afterimages. - Hiroyuki Endo; Shinnosuke Furuya; Ken-ichi Okada 002 (AINA, 2015)

A Triage Training System with Dynamic Scenario Change. - Misaki Hagino; Yuki Tayama; Ken-ichi Okada 002 (AINA, 2015)

Travel Agency Desk Support System Using Interest Degree. - Yusaku Maki; Satoshi Gondo; Tomoo Inoue; Ken-ichi Okada 002 (AINA, 2015)

Development of olfactory display using pulse ejection for medical applications. - Eri Matsuura; Shutaro Homma; Shohei Horiguchi; Sayaka Matsumoto; Ken-ichi Okada 002 (HealthCom, 2015)

Triage training system: adjusting the difficulty level according to user proficiency. - Yuki Tayama; Ryuga Kato; Ken-ichi Okada 002 (MUM, 2015)

WIKI THANKS: Cultural Differences in Thanks Network of Different-Language Wikipedias. - Keiichi Nemoto; Ken-ichi Okada 002 (CoRR, 2015)

Efficient Generation of Conductor Avatars for the Concert by Multiple Virtual Conductors. - Naoki Katayama; Ryosuke Takatsu; Tomoo Inoue; Hiroshi Shigeno; Ken-ichi Okada 002 (CollabTech, 2016)

Proposal of an Architecture and Implementation of a Triage Support System. - Ryuga Kato; Kento Izumida; Hiroshi Shigeno; Ken-ichi Okada 002 (CollabTech, 2016)

Supporting Theatrical Performance Practice by Collaborating Real and Virtual Space. - Mitsuki Shimada; Takayoshi Takano; Hiroshi Shigeno; Ken-ichi Okada 002 (CollabTech, 2016)

A Wearable Action Cueing System for Theatrical Performance Practice. - Ryosuke Takatsu; Naoki Katayama; Tomoo Inoue; Hiroshi Shigeno; Ken-ichi Okada 002 (CollabTech, 2016)

A Wearable System with Individual Cuing for Theatrical Performance Practice. - Ryosuke Takatsu; Naoki Katayama; Tomoo Inoue; Hiroshi Shigeno; Ken-ichi Okada 002 (CRIWG, 2016)

Multiple virtual conductors allow amateur orchestra players to perform better and more easily. - Ryosuke Takatsu; Yusaku Maki; Tomoo Inoue; Ken-ichi Okada 002; Hiroshi Shigeno (CSCWD, 2016)

MR Work Supporting System Using Pepper's Ghost. - Hiroto Tsuruzoe; Satoru Odera; Hiroshi Shigeno; Ken-ichi Okada 002 (ICAT-EGVE, 2016)

Visual Effect on the Odor Identification Ability of Children with Autism Spectrum Disorder. - Sayaka Matsumoto; Shohei Horiguchi; Hiroshi Shigeno; Ken-ichi Okada 002 (ICHI, 2016)

Individual learning support about first aid with a human-shaped input device. - Ryuga Kato; Kento Izumida; Hiroshi Shigeno; Ken-ichi Okada 002 (MUM, 2016)