A PVT Tolerant STM-16 Clock-and-Data Recovery LSI Using an On-Chip Loop-Gain Variation Compensation Architecture in 0.20-µm CMOS/SOI. - Yusuke Ohtomo; Hiroshi Koizumi; Kazuyoshi Nishimura; Masafumi Nogawa (IEICE Trans. Electron., 2008)

Maximum Eigenvalue Problem for Escherization. - Hiroshi Koizumi; Kokichi Sugihara (Graphs Comb., 2011)

An Injection-Controlled 10-Gb/s Burst-Mode CDR Circuit for a 1G/10G PON System. - Hiroaki Katsurai; Hideki Kamitsuna; Hiroshi Koizumi; Jun Terada; Yusuke Ohtomo; Tsugumichi Shibata (IEICE Trans. Electron., 2011)

A 10Gb/s burst-mode laser diode driver for burst-by-burst power saving. - Hiroshi Koizumi; Minoru Togashi; Masafumi Nogawa; Yusuke Ohtomo (ISSCC, 2012)

Analysis and design based on small-signal equivalent circuit for a lO-GHz ring VCO with 65-nm CMOS. - Keiji Kishine; Hiromi Inaba; Yusuke Ohtomo; Makoto Nakamura; Hiroshi Koizumi; Mitsuo Nakamura (MWSCAS, 2013)

Wearable blood flowmeter appcessory with low-power laser Doppler signal processing for daily-life healthcare monitoring. - Kei Kuwabara; Yuichi Higuchi; Takayuki Ogasawara; Hiroshi Koizumi; Tsuneyuki Haga (EMBC, 2014)

20.1-mW 8-Gbps UWB-IR millimeter-wave transmitter using an OOK pulse modulator based on CMOS inverters. - Shinsuke Nakano; Hiroaki Katsurai; Minoru Togashi; Hiroshi Koizumi; Masafumi Nogawa (ISCAS, 2014)

Detection of the different characteristics of year-to-year variation in foliage phenology among deciduous broad-leaved tree species by using daily continuous canopy surface images. - Tomoharu Inoue; Shin Nagai; Taku M. Saitoh; Hiroyuki Muraoka; Kenlo Nishida Nasahara; Hiroshi Koizumi (Ecol. Informatics, 2014)

Nonlinear oscillation for a millimeter-sized electrostatic energy harvester. - Kazuyoshi Ono; Norio Sato; Tomomi Sakata; Yoshito Jin; Yasuhiro Sato; Hiroshi Koizumi (APCC, 2015)

Utilization of ground-based digital photography for the evaluation of seasonal changes in the aboveground green biomass and foliage phenology in a grassland ecosystem. - Tomoharu Inoue; Shin Nagai; Hideki Kobayashi; Hiroshi Koizumi (Ecol. Informatics, 2015)

Robust respiration rate estimation using adaptive Kalman filtering with textile ECG sensor and accelerometer. - Nicholas N. Lepine; Takuro Tajima; Takayuki Ogasawara; Ryoichi Kasahara; Hiroshi Koizumi (EMBC, 2016)

Sensitivity improvement on CW dual-wavelength photoacoustic spectroscopy using acoustic resonant mode for noninvasive glucose monitor. - Yujiro Tanaka; Cassandra Purtill; Takuro Tajima; Michiko Seyama; Hiroshi Koizumi (IEEE SENSORS, 2016)

Nonlinear Oscillation for a Millimeter-Sized Vibrational Energy Harvester with Ethylene Tetrafluoroethylene Electret. - Kazuyoshi Ono; Norio Sato; Alexander Yu; Yujiro Tanaka; Tomomi Sakata; Yoshito Jin; Yasuhiro Sato; Hiroshi Koizumi (IEICE Trans. Commun., 2016)