RK

Ryoichi Kobayashi

HI Hitachi: 30 patents #925 of 28,497Top 4%
HC Hitachi Car Engineering Co.: 13 patents #34 of 465Top 8%
HS Hitachi Automotive Systems: 8 patents #192 of 1,636Top 15%
Mitsubishi Electric: 7 patents #4,301 of 25,717Top 20%
UC Ulvac Coating: 7 patents #4 of 21Top 20%
IC Idemitsu Petrochemical Co.: 2 patents #182 of 578Top 35%
IC Idemitsu Kosan Co.: 1 patents #699 of 1,237Top 60%
HC Hitachi, Ltd. And Hitachi Car Engineering, Co.: 1 patents #1 of 26Top 4%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
ND Ntt Docomo: 1 patents #1,030 of 1,706Top 65%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
📍 Hitachinaka, JP: #56 of 2,447 inventorsTop 3%
Overall (All Time): #50,976 of 4,157,543Top 2%
52
Patents All Time

Issued Patents All Time

Showing 26–50 of 52 patents

Patent #TitleCo-InventorsDate
6283104 Ignition system for internal combustion engine Takashi Ito, Katsuaki Fukatsu 2001-09-04
6257215 Resin-sealed electronic apparatus for use in internal combustion engines Toshiaki Kaminaga, Katsuaki Fukatsu 2001-07-10
6228541 Phase-shifting photomask blank, phase-shifting photomask, method for producing them and apparatus for manufacturing the blank Akihiko Isao, Susumu Kawada, Tsuneo Yamamoto, Jun Amano, Nobuyuki Yoshioka 2001-05-08
6082344 Ignition device for an internal combustion engine Takashi Ito, Katsuaki Fukatsu, Yuichi Kashimura 2000-07-04
6046584 Internal combustion engine rotating position detector using a differential signal from magnetic sensing portions Mitsutoshi Nakane, Noriyoshi Urushiwara 2000-04-04
5967128 Ignition apparatus for an internal combustion engine Hiroshi Onuki, Takashi Ito, Katsuaki Fukatsu, Noboru Sugiura 1999-10-19
5830607 Phase shift mask and manufacturing method thereof and exposure method using phase shift mask Akihiko Isao, Nobuyuki Yoshioka, Yaichiro Watakabe, Junji Miyazaki, Kouichiro Narimatsu +1 more 1998-11-03
5724601 Switching state detecting apparatus, control unit and transmission unit for waking up a microcomputer Noboru Sugiura 1998-03-03
5691090 Phase shift mask and manufacturing method thereof and exposure method using phase shift mask Akihiko Isao, Nobuyuki Yoshioka, Yaichiro Watakabe, Junji Miyazaki 1997-11-25
5674647 Phase shift mask and manufacturing method thereof and exposure method using phase shift mask Akihiko Isao, Nobuyuki Yoshioka, Yaichiro Watakabe, Junji Miyazaki, Kouichiro Narimatsu +1 more 1997-10-07
5664550 Ignition system of internal combustion engine Takashi Ito, Katsuaki Fukatsu, Noboru Sugiura 1997-09-09
5629114 Phase shift mask and manufacturing method thereof and exposure method using phase shift mask comprising a semitransparent region Akihiko Isao, Nobuyuki Yoshioka, Yaichiro Watakabe, Junji Miyazaki 1997-05-13
5474864 Phase shift mask and manufacturing method thereof and exposure method using phase shift mask Akihiko Isao, Nobuyuki Yoshioka, Yaichiro Watakabe, Junji Miyazaki 1995-12-12
5199405 Ignition current conduction time control apparatus for internal combustion engine Takashi Mukaihira, Noboru Sugiura, Toshio Ishii 1993-04-06
5182628 Semiconductor device having particular solder interconnection arrangement Katsuyoshi Izawa, Masayuki Ozawa 1993-01-26
5143553 Control apparatus of ignition current conducting time Takashi Mukaihira, Noboru Sugiura 1992-09-01
5135319 Ink ribbon cassette for use in a thermal transfer printer and having tension means and symmetrically located guide rollers Masafumi Suzaki, Fumio Takahagi, Tomoji Kitagishi, Shigetaka Furukawa 1992-08-04
5033445 Electronic distribution type ignition system Noriyoshi Urushiwara 1991-07-23
4911016 Semiconductor strain gauge bridge circuit Atsushi Miyazaki 1990-03-27
4893215 Electronic circuit apparatus of automobile Noriyoshi Urushiwara, Noboru Kobayashi 1990-01-09
4854292 Ignition system for internal combustion engine Noriyoshi Urushiwara, Noboru Sugiura, Yasunori Fujino 1989-08-08
4836176 Ignition apparatus of electronic distribution type for multi-cylinder internal combustion engine Yasunori Fujino, Noboru Sugiura 1989-06-06
4813272 Semiconductor pressure sensor Atsushi Miyazaki 1989-03-21
4802952 Method for manufacturing semiconductor absolute pressure sensor units Shigeyuki Kobori, Kazuji Yamada, Atsushi Miyazaki, Seikou Suzuki 1989-02-07
4591780 Constant current source device having a ratio metricity between supply voltage and output current Kazuji Yamada, Yasuo Nagai, Isao Shimizu, Kanji Kawakami 1986-05-27