Issued Patents All Time
Showing 51–75 of 85 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6010673 | Method for purifying exhaust gas | Takaaki Kanazawa, Shinichi Matsumoto, Satoshi Iguchi, Kenji Katoh, Toshiaki Tanaka +4 more | 2000-01-04 |
| 5911960 | Process for purifying exhaust gases | Naoto Miyoshi, Shinichi Matsumoto, Tsuneyuki Tanizawa, Satoshi Iguchi, Toshiaki Tanaka +8 more | 1999-06-15 |
| 5908993 | Apparatus for measuring total surface area of a portion of catalytic metal particles | Toshiaki Tanaka | 1999-06-01 |
| 5849661 | Automotive exhaust catalyst | Tetsuya Yamashita, Toshiaki Tanaka, Satomi Itakura | 1998-12-15 |
| 5715679 | Exhaust purification device of an engine | Takamitsu Asanuma, Tetsuro Kihara, Toshiaki Tanaka, Kenji Katoh, Satoshi Iguchi | 1998-02-10 |
| 5713199 | Device for detecting deterioration of NO.sub.x absorbent | Tetsuro Kihara, Takamitsu Asanuma, Toshiaki Tanaka, Kenji Katoh, Satoshi Iguchi | 1998-02-03 |
| 5702675 | Catalyst for purifying exhaust gases and process for producing the same | Toshiaki Tanaka, Satoshi Iguchi | 1997-12-30 |
| 5483795 | Exhaust purification device of internal combustion engine | Kenji Katoh, Tokuta Inoue, Hidetaka Nohira, Kiyoshi Nakanishi, Satoshi Iguchi +9 more | 1996-01-16 |
| 5473890 | Exhaust purification device of internal combustion engine | Satomi Seto, Toshiaki Tanaka, Satoshi Iguchi, Kiyoshi Nakanishi, Kenji Katoh | 1995-12-12 |
| 5473887 | Exhaust purification device of internal combustion engine | Kiyoshi Nakanishi, Satoshi Iguchi, Toshiaki Tanaka, Yasushi Araki, Shinya Hirota +1 more | 1995-12-12 |
| 5471836 | Exhaust purification device of internal combustion engine | Yasushi Araki, Shinya Hirota | 1995-12-05 |
| 5450722 | Exhaust purification device of internal combustion engine | Toshiaki Tanaka, Satoshi Iguchi, Kenji Katoh, Tetsuro Kihara | 1995-09-19 |
| 5448887 | Exhaust gas purification device for an engine | — | 1995-09-12 |
| 5443803 | Catalyst for purifying exhaust gas | Tatsuji Mizuno, Kazuhiko Sekizawa, Senshi Kasahara | 1995-08-22 |
| 5437153 | Exhaust purification device of internal combustion engine | Toshiaki Tanaka, Satoshi Iguchi, Yasushi Araki, Shinya Hirota, Tomohiro Oda +1 more | 1995-08-01 |
| 5433074 | Exhaust gas purification device for an engine | Satomi Seto, Satoshi Iguchi, Toshiaki Tanaka | 1995-07-18 |
| 5423181 | Exhaust gas purification device of an engine | Kenji Katoh, Satoshi Iguchi, Tetsuro Kihara, Masato Gotoh, Takamitsu Asanuma +1 more | 1995-06-13 |
| 5402641 | Exhaust gas purification apparatus for an internal combustion engine | Kenji Katoh, Toshiaki Tanaka, Satoshi Iguchi, Masato Goto, Tetsuro Kihara +2 more | 1995-04-04 |
| 5388406 | NOx decreasing apparatus for an internal combustion engine | Satomi Seto, Shinya Hirota | 1995-02-14 |
| 5365734 | NOx purification apparatus for an internal combustion engine | — | 1994-11-22 |
| 5365733 | Exhaust gas purification system for an internal combustion engine | Toshiaki Tanaka, Tokuta Inoue | 1994-11-22 |
| 5315824 | Cold HC adsorption and removal apparatus for an internal combustion engine | — | 1994-05-31 |
| 5296196 | Semiconductor hydrocarbon sensor | — | 1994-03-22 |
| 5270024 | Process for reducing nitrogen oxides from exhaust gas | Senshi Kasahara, Katsumi Kamiyama, Kazushige Igawa, Shinichi Matsumoto, Masayuki Fukui +5 more | 1993-12-14 |
| 5233830 | Exhaust gas purification system for an internal combustion engine | Toshiaki Tanaka, Tokuta Inoue | 1993-08-10 |