Issued Patents All Time
Showing 51–75 of 90 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5902469 | Gas sensor | Kunihiko Nakagaki | 1999-05-11 |
| 5893968 | Method and apparatus for measuring combustible gas component by burning the component | — | 1999-04-13 |
| 5879525 | Apparatus for measuring combustible gas component by burning component | — | 1999-03-09 |
| 5877406 | NO.sub.x sensor and method of measuring NO.sub.x | — | 1999-03-02 |
| 5866799 | Method of measuring a gas component and sensing device for measuring the gas component | Kunihiko Nakagaki | 1999-02-02 |
| 5854079 | Method for detection of performance reduction of exhaust gas purification catalyst | — | 1998-12-29 |
| 5844122 | Sensor with output correcting function | — | 1998-12-01 |
| 5823680 | Temperature sensor | Nobukazu Ikoma | 1998-10-20 |
| 5817521 | Method for detection of performance reduction of exhaust gas purification catalyst | — | 1998-10-06 |
| 5772965 | Method and system for detecting deterioration of exhaust gas control catalyst | Noriyuki Ina | 1998-06-30 |
| 5763763 | Method and sensing device for measuring predetermined gas component in measurement gas | Noriyuki Ina, Yasushi Watanabe, Takao Murase | 1998-06-09 |
| 5672811 | Method of measuring a gas component and sensing device for measuring the gas component | Kunihiko Nakagaki | 1997-09-30 |
| 5608154 | Carbon monoxide sensor | Yasuhiko Hamada | 1997-03-04 |
| 5602326 | Apparatus and method for measuring concentrations of gas components | Tomonori Takahashi, Toshihiro Yoshida, Takao Murase, Yuji Katsuda | 1997-02-11 |
| 5302276 | Electrochemical element | Hitoshi Nishizawa, Toshihiko Suzuki | 1994-04-12 |
| 5238552 | Oxygen sensor | Yasuhiko Hamada | 1993-08-24 |
| 5089133 | Waterproof type oxygen sensor | Masanori Katsu | 1992-02-18 |
| 5039972 | Oxygen sensor | Masanori Katsu | 1991-08-13 |
| 5037526 | Water-proof type oxygen sensor | Masanori Katsu | 1991-08-06 |
| 5031445 | Waterproof type oxygen sensor | Masanori Katsu | 1991-07-16 |
| 5012670 | Oxygen sensor | Yasuhiko Hamada | 1991-05-07 |
| 4986892 | Oxygen sensor | Masanori Katsu | 1991-01-22 |
| 4983271 | Oxygen sensor | Masanori Katsu | 1991-01-08 |
| 4948491 | Oxygen sensor | Masanori Katsu | 1990-08-14 |
| 4943330 | Method of manufacturing an electrochemical device | Atsushi Iino | 1990-07-24 |