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Hiroyasu Ishikawa

KDDI

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Publication

Featured researches published by Hiroyasu Ishikawa.

Archive | 1994

Satellite/land mobile communication system integration scheme

Yasuhiko Itoh; Toshio Mizuno; Hideo Kobayashi; Hiroyasu Ishikawa

Archive | 1996

Macrocell-microcell communication system with minimal mobile channel hand-off

Hiroyasu Ishikawa; Yoshio Takeuchi; Hideo Kobayashi

Archive | 2003

Transmitter device and transmitting method using OFDM and MC-CDMA

Kyesan Lee; Takeo Ohseki; Hiroyasu Ishikawa; Hideyuki Shinonaga

Archive | 2002

Transmission apparatus, system, and method using ofdm and mc-cdma

Hiroyasu Ishikawa; Takeo Ozeki; Keisan Ri; Hideyuki Shinonaga; 武雄 大関; 啓山 李; 博康 石川; 英之 篠永

Archive | 1995

Method for determining position of mobile earth station in satellite communication system

Hiroyasu Ishikawa; Hideyuki Shinonaga; Hideo Kobayashi

Archive | 1999

SEMICONDUCTOR STRUCTURE, SEMICONDUCTOR ELEMENT COMPRISING THE SAME AND CRYSTAL GROWTH METHOD

Nakao Akutsu; Takashi Egawa; Hiroyasu Ishikawa; Isao Matsumoto; Masayoshi Umeno; 功 松本; 正義 梅野; 孝志 江川; 博康 石川; 仲男 阿久津

Archive | 2003

Frequency error correction device and OFDM receiver with the device

Takeo Ohseki; Masato Furudate; Yoshio Kunisawa; Hiroyasu Ishikawa; Hideyuki Shinonaga

Archive | 2003

Transmitter device and receiver device adopting space time transmit diversity multicarrier CDMA, and wireless communication system with the transmitter device and the receiver device

Kyesan Lee; Takeo Ohseki; Hiroyasu Ishikawa; Hideyuki Shinonaga

Archive | 1999

Method of manufacturing gallium nitride compound semiconductor element

Nakao Akutsu; Takashi Egawa; Hiroyasu Ishikawa; Isao Matsumoto; Masayoshi Umeno; 功 松本; 正義 梅野; 孝志 江川; 博康 石川; 仲男 阿久津

Archive | 1997

Unique word recognition system

Hiroyasu Ishikawa; Hideo Kobayashi

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Hideyuki Shinonaga

Toyo University

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Hideo Kobayashi

Mie University

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Keizo Sugiyama

KDDI

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Tadayuki Fukuhara

KDDI

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Takashi Egawa

Nanyang Technological University

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Masayoshi Umeno

Nagoya University

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Naoki Fuke

KDDI

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Takayuki Warabino

Saitama Prefecture

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Nakao Akutsu

Nagoya Institute of Technology

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Takeo Ohseki

KDDI

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