Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6119452 | Device for purifying exhaust gas of internal combustion engine | Yukio Kinugasa, Kouhei Igarashi, Takaaki Itou, Naoto Suzuki, Takehisa Yaegashi +1 more | 2000-09-19 |
| 6004521 | Catalyst for purifying exhaust gases | Tuneyuki Tanizawa, Koichi Kasahara, Syuji Tateishi | 1999-12-21 |
| 5948376 | Catalyst for purifying exhaust gases | Tuneyuki Tanizawa, Kazunobu Ishibashi, Koichi Kasahara, Syuji Tateishi | 1999-09-07 |
| 5922293 | Process for purifying exhaust gases | Mareo Kimura, Yuzo Kawai, Yoko Kumai | 1999-07-13 |
| 5911960 | Process for purifying exhaust gases | Shinichi Matsumoto, Tsuneyuki Tanizawa, Satoshi Iguchi, Toshiaki Tanaka, Shinichi Takeshima +8 more | 1999-06-15 |
| 5849254 | Method for purifying exhaust gases with two layer catalyst in oxygen-rich atmosphere | Hiromasa Suzuki | 1998-12-15 |
| 5804152 | Method for purifying exhaust gases | Hiromasa Suzuki, Osamu Ogawa, Mareo Kimura, Yuzo Kawai, Koji Yokota +2 more | 1998-09-08 |
| 5762892 | Process for purifying exhaust gases | Koichi Kasahara, Syuji Tateishi, Shinichi Matsumoto | 1998-06-09 |
| 5075276 | Catalyst for purification of exhaust gases | Masakuni Ozawa, Mareo Kimura, Akio Isogai, Shinichi Matsumoto | 1991-12-24 |
| 4927799 | Catalyst for the purification of exhaust gas | Shinichi Matsumoto, Mareo Kimura, Masakuni Ozawa, Akio Isogai | 1990-05-22 |
| 4849398 | Catalyst for purifying exhaust gases | Toshihiro Takada, Shinichi Matsumoto | 1989-07-18 |
| 4843056 | Exhaust gas purifying catalyst and process for producing the same | Shinichi Matsumoto, Hideaki Muraki, Hideo Sobukawa, Masayuki Fukui, Mareo Kimura +1 more | 1989-06-27 |
| 4808564 | Catalyst for the purification of exhaust gases | Shinichi Matsumoto, Masayasu Sato | 1989-02-28 |