Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7424801 | System for diagnosing deterioration of catalyst | Toshio Ishii, Kiyoshi Miura, Kazuya Kawano | 2008-09-16 |
| 7114326 | System for diagnosing deterioration of catalyst | Toshio Ishii, Kiyoshi Miura, Kazuya Kawano | 2006-10-03 |
| 6343466 | System for diagnosing deterioration of catalyst | Toshio Ishii, Kiyoshi Miura, Kazuya Kawano | 2002-02-05 |
| 6085132 | Control method and apparatus for diagnosing vehicles | Toshio Ishii, Yutaka Takaku, Kazuya Kawano, Kiyoshi Miura | 2000-07-04 |
| 5964811 | Control method and apparatus for diagnosing vehicles | Toshio Ishii, Yutaka Takaku, Kazuya Kawano, Kiyoshi Miura | 1999-10-12 |
| 5819530 | Internal combustion engine controller with exhaust gas purification catalyst and its deterioration monitoring system | Seiji Asano, Toshio Ishii, Masayoshi Kaneyasu, Kazuya Kawano | 1998-10-13 |
| 5649420 | System for diagnosing deterioration of catalyst | Toshio Ishii, Kiyoshi Miura, Kazuya Kawano | 1997-07-22 |
| 5557933 | Malfunction diagnosis apparatus for internal combustion engine | Akihito Numata, Toshio Ishii, Yutaka Takaku, Kazuya Kawano | 1996-09-24 |
| 5526643 | System for diagnosing deterioration of catalyst | Toshio Ishii, Kiyoshi Miura, Kazuya Kawano | 1996-06-18 |
| 5400592 | Diagnostic apparatus for catalytic converter of an internal combustion engine | Toshio Ishii, Yutaka Takaku, Akihito Numata | 1995-03-28 |
| 5396176 | Combustion condition diagnosis utilizing multiple sampling of ionic current | Toshio Ishii | 1995-03-07 |
| 5341642 | System for diagnosing engine exhaust gas purifying device and system for diagnosing sensor | Nobuo Kurihara, Toshio Ishii, Kazuya Kawano, Yutaka Takaku | 1994-08-30 |
| 5199405 | Ignition current conduction time control apparatus for internal combustion engine | Noboru Sugiura, Ryoichi Kobayashi, Toshio Ishii | 1993-04-06 |
| 5143553 | Control apparatus of ignition current conducting time | Noboru Sugiura, Ryoichi Kobayashi | 1992-09-01 |