Kei Watanabe

According to our database, Kei Watanabe authored at least 23 papers between 2006 and 2024.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2024

An easy-to-implement, non-invasive head restraint method for monkey fMRI.

Reiji Tanaka, Kei Watanabe, Takafumi Suzuki, Kae Nakamura, Masaharu Yasuda, Hiroshi Ban, Ken-ichi Okada, Shigeru Kitazawa

NeuroImage, January, 2024

2023

S-Band WDM Transmission Using PPLN-Based Wavelength Converters and 400-Gb/s C-Band Real-Time Transceivers.

Tomoyuki Kato, Hidenobu Muranaka, Yu Tanaka, Yuichi Akiyama, Takeshi Hoshida, Shimpei Shimizu, Takayuki Kobayashi, Takushi Kazama, Takeshi Umeki, Kei Watanabe, Yutaka Miyamoto

IEICE Trans. Commun., November, 2023

Experimental Demonstration of Cascadable PPLN-Based Inter-Band Wavelength Converters for Band-Switchable Multi-Band Optical Cross-Connect.

Haruka Minami, Kenta Hirose, Takafumi Fukatani, Masahiro Nakagawa, Takeshi Seki, Shimpei Shimizu, Takayuki Kobayashi, Takushi Kazama, Koji Enbutsu, Kei Watanabe, Takeshi Umeki, Takashi Miyamura, Takeshi Kuwahara

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2023

2022

Generation of Carrier-Synchronized PDM Signal-Idler Pair for Polarization-Independent Phase-Sensitive Amplification.

Shimpei Shimizu, Takushi Kazama, Takeshi Umeki, Takayuki Kobayashi, Koji Enbutsu, Kei Watanabe, Yutaka Miyamoto

Proceedings of the 2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC), 2022

WDM Transmission in S-Band Using PPLN-Based Wavelength Converters and 400-Gb/s C-Band Real-Time Transceivers.

Tomoyuki Kato, Hidenobu Muranaka, Yu Tanaka, Yuichi Akiyama, Takeshi Hoshida, Shimpei Shimizu, Takayuki Kobayashi, Takushi Kazama, Takeshi Umeki, Kei Watanabe, Yutaka Miyamoto

Proceedings of the 2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC), 2022

Mitigation of Intercore Crosstalk Impact with PPLN-based Optical Spectrum Inversion.

Megumi Hoshi, Kohki Shibahara, Shimpei Shimizu, Takayuki Kobayashi, Takeshi Umeki, Takushi Kazama, Kei Watanabe, Takayoshi Mori, Yusuke Yamada, Kazuhide Nakajima, Yutaka Miyamoto

Proceedings of the 2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC), 2022

50-Tb/s (1 Tb/s × 50 ch) WDM Transmission on Two 6.25-THz Bands Using Hybrid Inline Repeater of PPLN-based OPAs and Incoherent-forward-pumped DRA.

Takayuki Kobayashi, Shimpei Shimizu, Masanori Nakamura, Takeshi Umeki, Takushi Kazama, Junji Yoshida, Shigehiro Takasaka, Yasuto Tatamida, Hiroto Kawakami, Fukutaro Hamaoka, Munehiko Nagatani, Hiroshi Yamazaki, Kei Watanabe, Takashi Saida, Yutaka Miyamoto

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2022

Silica-PLC based mode-dependent-loss equalizer for two LP mode transmission.

Takeshi Fujisawa, Takayoshi Mori, Junji Sakamoto, Yoko Yamashita, Taiji Sakamoto, Ryota Imada, Ryoto Ima, Takanori Sato, Kei Watanabe, Ryoichi Kasahara, Toshikazu Hashimoto, Kazuhide Nakajima, Kunimasa Saitoh

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2022

2019

Japanese Character Segmentation for Historical Handwritten Official Documents Using Fully Convolutional Networks.

Kei Watanabe, Shinji Takahashi, Yuki Kamaya, Masashi Yamada, Yoshito Mekada, Jun-ichi Hasegawa, Shinya Miyazaki

Proceedings of the 2019 International Conference on Document Analysis and Recognition, 2019

2015

Feedback Loop Analysis and Optimized Compensation Slope of the Current-Mode Buck DC-DC Converter in DCM.

Yasuhiro Sugimoto, Toru Sai, Kei Watanabe, Mikio Abe

IEEE Trans. Circuits Syst. I Regul. Pap., 2015

2014

A fast and precise circuit simulation method for switching power converters using a mixture of circuits and behavioral models.

Kei Watanabe, Mikio Abe, Toru Sai, Yasuhiro Sugimoto

Proceedings of the 2014 IEEE Asia Pacific Conference on Circuits and Systems, 2014

2011

Wide-bandwidth, low-waveguide-width-sensitivity InP-based multimode interference coupler designed by wavefront matching method.

Takeshi Fujisawa, Tsutomu Kitoh, Kei Watanabe, Kenya Suzuki, Masaki Kotoku, Hiroshi Takahashi

IEICE Electron. Express, 2011

2009

Human factors studies in information support development for human-robot collaborative cellular manufacturing system.

Jeffrey Too Chuan Tan, Ye Zhang, Feng Duan, Kei Watanabe, Ryu Kato, Tamio Arai

Proceedings of the 18th IEEE International Symposium on Robot and Human Interactive Communication, 2009

Human-robot collaboration in cellular manufacturing: Design and development.

Jeffrey Too Chuan Tan, Feng Duan, Ye Zhang, Kei Watanabe, Ryu Kato, Tamio Arai

Proceedings of the 2009 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2009

2008

Image-Based Visual PID Control of a Micro Helicopter Using a Stationary Camera.

Kei Watanabe, Yuta Yoshihata, Yasushi Iwatani, Koichi Hashimoto

Adv. Robotics, 2008

A visual-servo-based assistant system for unmanned helicopter control.

Kei Watanabe, Yasushi Iwatani, Kenichiro Nonaka, Koichi Hashimoto

Proceedings of the 2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2008

Visual tracking with occlusion handling for visual servo control.

Yasushi Iwatani, Kei Watanabe, Koichi Hashimoto

Proceedings of the 2008 IEEE International Conference on Robotics and Automation, 2008

Analyzing human skill through control trajectories and motion capture data.

Feng Duan, Ye Zhang, Nuttapol Pongthanya, Kei Watanabe, Hiroshi Yokoi, Tamio Arai

Proceedings of the 2008 IEEE International Conference on Automation Science and Engineering, 2008

2007

Development of Obstacle Recognition System of Humanoids Using Relative Disparity Maps from Small Range Image Sensors.

Naotaka Hikosaka, Kei Watanabe, Kazunori Umeda

J. Robotics Mechatronics, 2007

Analyze assembly skills using a motion simulator.

Feng Duan, Jeffrey Too Chuan Tan, Ye Zhang, Kei Watanabe, Nuttapol Pongthanya, Masao Sugi, Hiroshi Yokoi, Tamio Arai

Proceedings of the IEEE International Conference on Robotics and Biomimetics, 2007

Multi-camera visual servoing of a micro helicopter under occlusions.

Yuta Yoshihata, Kei Watanabe, Yasushi Iwatani, Koichi Hashimoto

Proceedings of the 2007 IEEE/RSJ International Conference on Intelligent Robots and Systems, October 29, 2007

Obstacle Detection of a Humanoid on a Plane Using a Relative Disparity Map Obtained by a Small Range Image Sensor.

Naotaka Hikosaka, Kei Watanabe, Kazunori Umeda

Proceedings of the 2007 IEEE International Conference on Robotics and Automation, 2007

2006

Contributions of prefrontal cue-, delay-, and response-period activity to the decision process of saccade direction in a free-choice ODR task.

Kei Watanabe, Saori Igaki, Shintaro Funahashi

Neural Networks, 2006