TK

Tokio Kohama

NS Nippon Soken: 68 patents #5 of 1,540Top 1%
TO Toyota: 25 patents #786 of 26,838Top 3%
NC Nippondenso Co.: 16 patents #65 of 3,479Top 2%
DE Denso: 3 patents #3,857 of 11,792Top 35%
KU Kureha: 1 patents #186 of 354Top 55%
📍 Nishio, JP: #2 of 363 inventorsTop 1%
Overall (All Time): #24,570 of 4,157,543Top 1%
77
Patents All Time

Issued Patents All Time

Showing 1–25 of 77 patents

Patent #TitleCo-InventorsDate
6604424 Pressure detecting apparatus and installation structure of same Yasuyuki Kawabe, Kiyohiko Watanabe, Yukihiro Kato, Yoshifumi Watanabe 2003-08-12
6265814 Spark plug having a bypass electrode extending along a bypass path between center and ground electrode Tohru Yoshinaga, Takehiko Kato, Hiroshi Yorita, Masaki Takeyama, Masatoshi Ikeda 2001-07-24
6227169 Fuel supply system for internal combustion engines having fuel leakage restricting structure Yasuyuki Sato, Kimitaka Saito, Masaaki Yano 2001-05-08
6105552 Abnormal combustion detection apparatus and method for internal combustion engine Katsuhiko Arisawa, Shinichi Okabe, Kiyohito Watanabe 2000-08-22
6104195 Apparatus for detecting a condition of burning in an internal combustion engine Tohru Yoshinaga, Hiroshi Yorita, Yasuyuki Satou, Masao Kano, Toshiaki Yamaura 2000-08-15
6026781 Fuel injection control device of cylinder direct injection engine Nobuo Imatake, Shingo Morishima, Kimitaka Saito, Tatsuo Kobayashi 2000-02-22
6020742 Combustion monitoring apparatus for internal combustion engine Masao Kano, Tohru Yoshinaga, Hiroshi Yorita, Yasuyuki Satou 2000-02-01
5970963 Apparatus for preventing flow noise in throttle valve Yoshihiro Nakase, Kouzi Ohara, Kenji Kanehara, Kenichi Yamamoto, Yoshihiro Miyaji 1999-10-26
5925819 Combustion monitoring apparatus for internal combustion engine Tohru Yoshinaga, Hiroshi Yorita, Yasuyuki Satou, Masao Kano 1999-07-20
5915364 Canister for use in evaporative emission control system for automotive vehicle Naoya Katou, Hideaki Itakura, Tohru Yoshinaga, Katsuo Azegami, Kazuto Maeda +1 more 1999-06-29
5914457 Activated charcoal canister Hideaki Itakura, Naoya Kato, Tohru Yoshinaga, Kazuto Maeda 1999-06-22
5791043 Process of producing metal catalyst carrier Shinichi Okabe, Tohru Yoshinaga, Kiyohiko Watanabe, Yasuyuki Kawabe 1998-08-11
5749330 Cooling system for an internal combustion engine Yoshimitsu Inque, Yasutoshi Yamanaka, Ryuichi Matsushiro, Hikaru Sugi, Takayuki Hayashi +4 more 1998-05-12
5692480 Evaporative emission control system for automotive vehicle Naoya Kato, Hideaki Itakura, Tohru Yoshinaga, Katuo Azegami 1997-12-02
5692052 Engine noise control apparatus Katsuyuki Tanaka, Yoshitaka Nishio, Satoshi Kameyama, Kouzi Ohara, Masanori Kato 1997-11-25
5658536 Exhaust gas purifying apparatus Shinichi Okabe, Tohru Yoshinaga, Kiyohiko Watanabe, Yasuyuki Kawabe 1997-08-19
5446790 Intake sound control apparatus Katsuyuki Tanaka, Masanori Kato, Kouzi Ohara, Yoshitaka Nishio 1995-08-29
5439204 Vibration isolator Hisamitsu Yamazoe, Shuji Mizutani, Toshiaki Agui 1995-08-08
5343841 Intake control device of internal combustion engine Isao Hattori, Yurio Nomura, Shigeo Nomura 1994-09-06
5080065 Air intake control system for an internal combustion engine Yurio Nomura, Hiroyuki Aota, Toshikazu Ina, Hideki Obayashi 1992-01-14
4858568 Intake apparatus for internal combustion engine Hideki Obayashi, Yoshitaka Nishio, Hiroyuki Goto 1989-08-22
4796584 Intake control system for internal combustion engine and intake control valve used therein Hiroyuki Goto, Yoshitaka Nishio, Hideki Obayashi, Kazuyuki Horie 1989-01-10
4739483 Automatic transmission control system for an automobile Toshikazu Ina, Hisasi Kawai, Syuzaburo Tashiro, Hideki Obayashi 1988-04-19
4702940 Method of producing filter for air cleaner Toshiaki Nakayama, Isamu Okada, Tamio Yokoyama 1987-10-27
4693116 Semiconductor-chip gas-flow measuring apparatus Kazuhiko Miura, Tadashi Hattori, Yukio Iwasaki, Kenji Kanehara 1987-09-15