A 1.1V 3.1-to-9.5GHz MB-OFDM UWB transceiver in 90nm CMOS. - Akio Tanaka; Hiroyuki Okada; Hiroshi Kodama; Hiromu Ishikawa (ISSCC, 2006)

Wide Lock-Range, Low Phase-Noise PLL using Interpolative Ring-VCO with Coarse Frequency Tuning and Frequency Linearization. - Hiroshi Kodama; Hiroyuki Okada; Hiromu Ishikawa; Akio Tanaka (CICC, 2007)

A 2.88Gb/s digital hopping UWB transceiver. - Akio Tanaka; Keiichi Numata; Hiroshi Kodama; Hiromu Ishikawa; Naoki Oshima; Hitoshi Yano (ISSCC, 2009)

Effect of interlateral time and intensity differences of distantly-presented bone-conducted ultrasound on lateralization*. - Hiromu Ishikawa; Sho Otsuka; Seiji Nakagawa (EMBC, 2020)

Basic properties of distantly-presented bone-conduction perception*. - Hiromu Ishikawa; Sho Otsuka; Seiji Nakagawa (EMBC, 2021)