KH

Keiji Hanzawa

HS Hitachi Automotive Systems: 74 patents #1 of 1,636Top 1%
HI Hitachi: 38 patents #558 of 28,497Top 2%
HC Hitachi Car Engineering Co.: 26 patents #9 of 465Top 2%
HA Hitachi Astemo: 2 patents #393 of 1,276Top 35%
HC Hitachi Automotive Engineering Co.: 2 patents #95 of 314Top 35%
HC Hitachi, Ltd. And Hitachi Car Engineering, Co.: 1 patents #1 of 26Top 4%
📍 Hitachinaka, JP: #5 of 2,447 inventorsTop 1%
Overall (All Time): #10,897 of 4,157,543Top 1%
115
Patents All Time

Issued Patents All Time

Showing 101–115 of 115 patents

Patent #TitleCo-InventorsDate
6839643 Flowmeter and flowmeter system Atsushi Kanke, Masahiro Matsumoto, Shinya Igarashi, Kei Ueyama 2005-01-04
6810345 Gas flow meter Takafumi Matsumura, Noboru Sugiura, Kenichi Katagishi, Masahiro Matsumoto 2004-10-26
6769298 Gas flow rate measuring device having an integrated chip temperature sensor and adjustment processing circuit on common chip Takafumi Matsumura, Kenichi Katagishi, Masahiro Matsumoto 2004-08-03
6631645 Semiconductor pressure sensor utilizing capacitance change Shinya Satou, Satoshi Shimada, Naohiro Monma, Atsushi Miyazaki 2003-10-14
6564643 Capacitive pressure sensor Junichi Horie, Atsushi Miyazaki, Satoshi Shimada, Akihiko Saitou, Yasuo Onose +1 more 2003-05-20
6538866 Circuit for protecting a load from an overvoltage Masahiro Matsumoto, Fumio Murabayashi, Tatsumi Yamauchi, Hiromichi Yamada, Kohei Sakurai +1 more 2003-03-25
6539322 Sensor device Masahiro Matsumoto, Kohei Sakurai, Fumio Murabayashi, Hiromichi Yamada, Tatsumi Yamauchi +1 more 2003-03-25
6489906 &Dgr;&Sgr; type A/D converter Masahiro Matsumoto, Fumio Murabayashi, Tatsumi Yamauchi 2002-12-03
6377056 Electrostatic capacitance type dynamical quantity sensor Masahiro Matsumoto, Satoshi Shimada, Akihiko Saito, Yasuo Onose, Norio Ichikawa +2 more 2002-04-23
6282136 Semiconductor memory devices and sensors using the same Kohei Sakurai, Tatsumi Yamauchi, Masahiro Matsumoto, Fumio Murabayashi, Hiromichi Yamada +1 more 2001-08-28
6188340 Sensor adjusting circuit Masahiro Matsumoto, Satoshi Shimada, Seikou Suzuki, Akihiko Saito, Atsushi Miyazaki 2001-02-13
6167761 Capacitance type pressure sensor with capacitive elements actuated by a diaphragm Akio Yasukawa, Satoshi Shimada, Seikou Suzuki, Akihiko Saito, Masahiro Matsumoto +4 more 2001-01-02
6051853 Semiconductor pressure sensor including reference capacitor on the same substrate Satoshi Shimada, Akihiko Saito, Masahiro Matsumoto, Seikou Suzuki, Terumi Nakazawa +2 more 2000-04-18
5659254 Capacitance type sensor device Masahiro Matsumoto, Seiko Suzuki, Masayuki Miki, Masayoshi Suzuki, Takao Sasayama 1997-08-19
5506454 System and method for diagnosing characteristics of acceleration sensor Tetsuo Matsukura, Hirokazu Fujita, Masayoshi Suzuki, Masahiro Matsumoto 1996-04-09