Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648601 | Apparatus for analyzing air/fuel ratio sensor characteristics | Kazunori Katoh, Masayuki Matsui, Naoki Katayama, Yasushi Yamada, Hideaki Takahashi +1 more | 1997-07-15 |
| 5520789 | Gas sensor using ionic conductor | Hideaki Takahashi, Tadashi Inaba | 1996-05-28 |
| 5480535 | Thin film multilayered air/fuel ratio sensor | Hideaki Takahashi, Keiichi Saji, Masaharu Takeuchi, Kozo Satta | 1996-01-02 |
| 4993386 | Operation control system for internal combustion engine | Toshihiro Ozasa, Shigeo Suzuki, Keiichi Saji, Hideaki Takahashi | 1991-02-19 |
| 4869094 | Gas sampling valve | Kazuhiro Kozuka, Toshihiro Ozasa, Hideaki Takahashi | 1989-09-26 |
| 4844788 | Wide-range air/fuel ratio sensor and detector using the same | Hideaki Takahashi, Keiichi Saji | 1989-07-04 |
| 4661234 | Air-fuel ratio sensor and apparatus using the same | Hideaki Takahashi, Takashi Takeuchi, Kiyoharu Hayakawa | 1987-04-28 |
| 4626338 | Equipment for detecting oxygen concentration | Keiichi Saji, Takashi Takeuchi | 1986-12-02 |
| 4595485 | Limiting electric current type oxygen sensor | Hideaki Takahashi, Keiichi Saji, Kiyoharu Hayakawa, Takashi Takeuchi | 1986-06-17 |
| 4576705 | Apparatus with polarographic sensor to detect concentrations of plurality of gas components | Hideaki Takahashi, Keiichi Saji, Takashi Takeuchi, Kiyoharu Hayakawa | 1986-03-18 |
| 4574264 | Thin film oxygen sensor with microheater | Hideaki Takahashi, Takashi Takeuchi, Kiyoharu Hayakawa, Hideaki Muraki | 1986-03-04 |
| 4524264 | Temperature control apparatus | Takashi Takeuchi, Hideaki Takahashi | 1985-06-18 |
| 4510036 | Limiting electric current type oxygen sensor with heater and limiting electric current type oxygen concentration detecting device using the same | Takashi Takeuchi, Hideaki Takahashi, Keiichi Saji, Kiyoharu Hayakawa | 1985-04-09 |
| 4500412 | Oxygen sensor with heater | Hideaki Takahashi, Kiyoharu Hayakawa, Takashi Takeuchi | 1985-02-19 |
| 4494409 | Engine vibration sensor | Koji Tsukada, Masaharu Takeuchi | 1985-01-22 |
| 4472262 | Limiting electric current type oxygen concentration detector applied with temperature compensation | Keiichi Saji, Takashi Takeuchi, Yasuhiro Otsuka, Toshinobu Furutani, Mari Okazaki | 1984-09-18 |
| 4448059 | Engine vibration sensor | Masaharu Takeuchi | 1984-05-15 |