Issued Patents All Time
Showing 51–67 of 67 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5386695 | Air-fuel ratio control system for internal combustion engines, having catalytic converter deterioration-detecting function | Yoichi Iwata, Yasunari Seki, Tsuyoshi Takizawa, Takayoshi Nakayama | 1995-02-07 |
| 5381657 | Catalyst deterioration-detecting system for internal combustion engines | Tsuyoshi Takizawa, Yasunari Seki, Yoichi Iwata, Takayoshi Nakayama | 1995-01-17 |
| 5379591 | Air-fuel ratio control system for internal combustion engines | Yoichi Iwata, Naoki Iida, Tsuyoshi Takizawa, Yasunari Seki, Takayoshi Nakayama | 1995-01-10 |
| 5375416 | Air-fuel ratio sensor deterioration-detecting device for internal combustion engines | Yoichi Iwata, Yasunari Seki, Tsuyoshi Takizawa, Takayoshi Nakayama | 1994-12-27 |
| 5325664 | System for determining deterioration of catalysts of internal combustion engines | Yasunari Seki, Katuhiro Kumagai, Hiroshi Maruyama, Yoichi Iwata, Tsuyoshi Takizawa +8 more | 1994-07-05 |
| 5305724 | Evaporative fuel control unit for internal combustion engine | Masataka Chikamatsu, Shigetaka Kuroda, Kazutomo Sawamura, Takayoshi Nakayama | 1994-04-26 |
| 5049207 | Heat treatment process for bushing used in track of endless track tractor | Takahiko Sahara, Hisahiko Kusano, Masayoshi Kaneko, Masahiro Nakajima | 1991-09-17 |
| 4841652 | Adhesive sheet | Hitoshi Sakashita, Yoshihisa Mineura | 1989-06-27 |
| 4766034 | Magnetic recording medium | Takeshi Kitamura, Shinsaku Nagaoka | 1988-08-23 |
| 4589184 | Method and apparatus for mounting parts to both sides of a main body such as an automobile body | Kajio Asano, Haruo Oda, Yasuaki Abe, Yoshitaka Watanabe | 1986-05-20 |
| 4574755 | Air/fuel ratio control device for a carburetor | Shigeru Doi | 1986-03-11 |
| 4546746 | Injector for multicylinder internal combustion engines | Tetsuo Yamagata | 1985-10-15 |
| 4537824 | Magnetic recording medium | Masao Asano, Wataru Fujimatsu, Kazumasa Matsumoto, Hideki Murata, Kenji Watanabe | 1985-08-27 |
| 4437440 | Auxiliary combustion chamber preheating device | Shin Suzuki | 1984-03-20 |
| 4413602 | Fuel injection control apparatus for internal combustion engine | Kazuo Inoue, Ryo Narisawa, Ryuji Wada, Hiroshi Irino | 1983-11-08 |
| 4354469 | Fuel injection apparatus in motorized two-wheeled vehicle | — | 1982-10-19 |
| 4257227 | Secondary air controlling apparatus for internal combustion engines | Yoichi Ishida, Kanau Iwashita | 1981-03-24 |