KM

Katsuji Marumoto

HI Hitachi: 24 patents #1,340 of 28,497Top 5%
HC Hitachi Automotive Engineering Co.: 5 patents #22 of 314Top 8%
📍 Ibaraki, JP: #303 of 6,779 inventorsTop 5%
Overall (All Time): #175,651 of 4,157,543Top 5%
24
Patents All Time

Issued Patents All Time

Showing 1–24 of 24 patents

Patent #TitleCo-InventorsDate
7240665 Method and apparatus for controlling motor-driven throttle valve, automobile, method of measuring temperature of motor for driving automotive throttle valve, and method of measuring motor temperature Masatoshi Hoshino, Minoru Oosuga, Yasuhiro Kamimura, Yasushi Sasaki 2007-07-10
6837217 Method and apparatus for motor-driven throttle valve, automobile, method of measuring temperature of motor for driving automotive throttle valve, and method of measuring motor temperature Masatoshi Hoshino, Minoru Oosuga, Yasuhiro Kamimura, Yasushi Sasaki 2005-01-04
6390064 Electronic throttle valve control apparatus Masatoshi Hoshino, Ryozo Masaki, Minoru Ohsuga, Mitsuru Watabe 2002-05-21
6253733 Electronic throttle valve control apparatus Masatoshi Hoshino, Ryozo Masaki, Minoru Ohsuga, Mitsuru Watabe 2001-07-03
6055960 Electronic throttle valve control apparatus Masatoshi Hoshino, Ryozo Masaki, Minoru Ohsuga, Mitsuru Watabe 2000-05-02
5947086 Throttle valve control apparatus Masatoshi Hoshino, Nobuo Kurihara 1999-09-07
5818178 Valve control apparatus for an automobile Toshimichi Minowa, Mineo Kashiwaya, Matsuo Amano 1998-10-06
5521486 Charging generator with self-diagnosis function Nobuo Takamoto, Yuji Maeda, Sakae Hikita 1996-05-28
5448154 Control device for battery charging AC generator used in motor vehicle Atsushi Kanke, Keiichi Mashino, Yuuji Maeda, Shouju Masumoto, Naoyuki Takahashi +1 more 1995-09-05
5262711 Charging generator for a vehicle including a circuit for suppressing a sudden change in a field current Yuichi Mori, Keiichi Mashino, Atsushi Kanke 1993-11-16
5231344 Control apparatus for electric generator Kunio Miyashita, Kazuo Tahara, Keiichi Mashino, Atsushi Kanke, Akihiro Saito 1993-07-27
5105143 Control system for automotive charging generator Keiichi Mashino, Akiteru Ueda 1992-04-14
5033565 Motor-driven power steering apparatus Toshimi Abukawa, Toshiaki Okuyama, Kazuo Tahara, Toshiyuki Koterazawa, Mitsuyuki Hombu +6 more 1991-07-23
4960178 Motor-driven power steering apparatus Toshimi Abukawa, Toshiaki Okuyama, Kazuo Tahara, Toshiyuki Koterazawa, Mitsuyuki Hombu +6 more 1990-10-02
4926960 Electric power steering apparatus for vehicle Hisatugu Ishikura, Kazuo Tahara, Toshimi Abukawa, Toshiyuki Koterazaka, Mitsuyuki Hombu +5 more 1990-05-22
4869334 Electric motor-driven power steering apparatus Tsutomu Ohmae, Toshiyuki Koterazawa, Kazuaki Tobari 1989-09-26
4865148 Vehicle height control apparatus responsive to power steering operation Kazuo Tahara, Hisatugu Ishikura, Hirohisa Yamamura, Toru Tatsuzaki, Toshimi Abukawa +5 more 1989-09-12
4753309 Electric power steering apparatus Tsutomu Omae 1988-06-28
4580083 Chopper controller for a D.C. motor Tsutomu Omae, Shotaro Naito 1986-04-01
4366420 Electromobile control device Tsutomu Omae, Shotaro Naito 1982-12-28
4291259 Control apparatus for controlling transistor chopper for use in current supply for electric motor Tsutcmu Ohmae 1981-09-22
4218730 Transistor switching apparatus for use in the control of a D.C. load Tsutomu Ohmae 1980-08-19
4211961 Control circuit for use in control of current supply for electric motor with improved duty controlling oscillator circuit, particularly for electrical vehicle Tsutomu Omae 1980-07-08
4207478 DC Chopper device Schigeru Kuriyama, Tsutomu Omae 1980-06-10