Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7074309 | Heater-equipped air-fuel ratio sensor | Isao Watanabe, Masanori Fukutani | 2006-07-11 |
| 6527928 | Heater-equipped air-fuel ratio sensor | Isao Watanabe, Masanori Fukutani | 2003-03-04 |
| 6258234 | Air fuel ratio sensor | Isao Watanabe, Masanori Fukutani, Toshihiro Sakawa, Nobuyuki Tsuji, Minoru Ohta | 2001-07-10 |
| 5956841 | Assembling method for a heater-equipped air-fuel ratio sensor | Isao Watanabe, Masanori Fukutani | 1999-09-28 |
| 5948226 | Oxygen concentration detector | Toshihiro Sakawa, Taiji Yokoyama | 1999-09-07 |
| 5874664 | Air fuel ratio sensor and method for assembling the same | Isao Watanabe, Masanori Fukutani, Toshihiro Sakawa, Nobuyuki Tsuji, Minoru Ohta | 1999-02-23 |
| 4569748 | Oxygen sensor | Takao Akatsuka, Masao Kawaguchi, Jiro Nakano, Takao Ishibashi | 1986-02-11 |