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Koichi ISHIDA

EMI Camera LSI (EMcam) with On-Chip Loop Antenna Matrix to Measure EMI Noise Spectrum and Distribution Naoki MASUNAGA Koichi ISHIDA Takayasu SAKURAI Makoto TAKAMIYA
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2012/06/01 Vol. E95-C No. 6 pp. 1059-1066 Type of Manuscript: Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies) Category: Keyword: electromagnetic interference, on-chip loop antenna, down-conversion, noise distribution,
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0.5-V Input Digital Low-Dropout Regulator (LDO) with 98.7% Current Efficiency in 65 nm CMOS Yasuyuki OKUMA Koichi ISHIDA Yoshikatsu RYU Xin ZHANG Po-Hung CHEN Kazunori WATANABE Makoto TAKAMIYA Takayasu SAKURAI
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2011/06/01 Vol. E94-C No. 6 pp. 938-944 Type of Manuscript: Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies) Category: Keyword: low dropout regulator, digital control, low voltage,
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A Variable Output Voltage Switched-Capacitor DC-DC Converter with Pulse Density and Width Modulation (PDWM) for 57% Ripple Reduction at Low Output Voltage Xin ZHANG Yu PU Koichi ISHIDA Yoshikatsu RYU Yasuyuki OKUMA Po-Hung CHEN Takayasu SAKURAI Makoto TAKAMIYA
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2011/06/01 Vol. E94-C No. 6 pp. 953-959 Type of Manuscript: Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies) Category: Keyword: DC-DC converter, low ripple, low voltage, pulse density modulation, pulse width modulation, switched-capacitor,
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0.18-V Input Charge Pump with Forward Body Bias to Startup Boost Converter for Energy Harvesting Applications Po-Hung CHEN Koichi ISHIDA Xin ZHANG Yasuyuki OKUMA Yoshikatsu RYU Makoto TAKAMIYA Takayasu SAKURAI
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2011/04/01 Vol. E94-C No. 4 pp. 598-604 Type of Manuscript: Special Section PAPER (Special Section on Circuits and Design Techniques for Advanced Large Scale Integration) Category: Keyword: charge pumps, switched capacitor, startup, boost converter, low voltage,
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Inductor and TSV Design of 20-V Boost Converter for Low Power 3D Solid State Drive with NAND Flash Memories Tadashi YASUFUKU Koichi ISHIDA Shinji MIYAMOTO Hiroto NAKAI Makoto TAKAMIYA Takayasu SAKURAI Ken TAKEUCHI
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2010/03/01 Vol. E93-C No. 3 pp. 317-323 Type of Manuscript: Special Section PAPER (Special Section on Circuits and Design Techniques for Advanced Large Scale Integration) Category: Keyword: SSD, boost converter, charge pump, inductor design, TSV's,
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Difficulty of Power Supply Voltage Scaling in Large Scale Subthreshold Logic Circuits Tadashi YASUFUKU Taro NIIYAMA Zhe PIAO Koichi ISHIDA Masami MURAKATA Makoto TAKAMIYA Takayasu SAKURAI
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2010/03/01 Vol. E93-C No. 3 pp. 332-339 Type of Manuscript: Special Section PAPER (Special Section on Circuits and Design Techniques for Advanced Large Scale Integration) Category: Keyword: minimum operating voltage, subthreshold, logic, variations, body bias,
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A 100 Mbps, 4.1 pJ/bit Threshold Detection-Based Impulse Radio UWB Transceiver in 90 nm CMOS Lechang LIU Yoshio MIYAMOTO Zhiwei ZHOU Kosuke SAKAIDA Jisun RYU Koichi ISHIDA Makoto TAKAMIYA Takayasu SAKURAI
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2009/06/01 Vol. E92-C No. 6 pp. 769-776 Type of Manuscript: Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies) Category: Keyword: impulse radio ultra-wideband (IR-UWB), digital pulse-shaping, pulse discriminator, error-recovery phase-frequency detector,
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An Outside-Rail Opamp Design Relaxing Low-Voltage Constraint on Future Scaled Transistors Koichi ISHIDA Atit TAMTRAKARN Hiroki ISHIKURO Makoto TAKAMIYA Takayasu SAKURAI
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2007/04/01 Vol. E90-C No. 4 pp. 786-792 Type of Manuscript: Special Section PAPER (Special Section on Low-Power, High-Speed LSIs and Related Technologies) Category: Analog and Communications Keyword: outside-rail, opamp, scaling,
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