Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7074309 | Heater-equipped air-fuel ratio sensor | Isao Watanabe, Michihiro Yamakawa | 2006-07-11 |
| 6527928 | Heater-equipped air-fuel ratio sensor | Isao Watanabe, Michihiro Yamakawa | 2003-03-04 |
| 6258234 | Air fuel ratio sensor | Isao Watanabe, Michihiro Yamakawa, Toshihiro Sakawa, Nobuyuki Tsuji, Minoru Ohta | 2001-07-10 |
| 6178806 | Air fuel ratio sensor and method for assembling the same | Isao Watanabe, Nobuyuki Tsuji, Minoru Ohta | 2001-01-30 |
| 5956841 | Assembling method for a heater-equipped air-fuel ratio sensor | Isao Watanabe, Michihiro Yamakawa | 1999-09-28 |
| 5874664 | Air fuel ratio sensor and method for assembling the same | Isao Watanabe, Michihiro Yamakawa, Toshihiro Sakawa, Nobuyuki Tsuji, Minoru Ohta | 1999-02-23 |
| 5602384 | Sunlight sensor that detects a distrubition and amount of thermal load | Naochika Nunogaki, Makoto Shirai, Manabu Yamada, Yutaka Maeda, Masaya Nakamura +1 more | 1997-02-11 |
| 4843882 | Direct-heated flow measuring apparatus having improved sensitivity response speed | Minoru Ohta, Michitoshi Onoda, Kazuhiko Miura, Seizi Huzino, Tadashi Hattori +1 more | 1989-07-04 |
| 4695301 | Porous ceramic monoliths | Atushi Okajima, Hitoshi Yoshida, Yukihisa Takeuchi | 1987-09-22 |
| 4632683 | Exhaust gas purifying filter and production of the same | Naoto Miwa, Kazuyuki Ito, Keiji Ito | 1986-12-30 |
| 4519820 | Fitter apparatus for purifying exhaust gases | Kazuo Oyobe, Etsuji Nomura, Kazuma Matsui, Kazuyuki Ito, Naoto Miwa +1 more | 1985-05-28 |