Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6497846 | Exhaust gas purifying system for internal combustion engine | Keiji Okada, Kazuhiko Kanetoshi, Akira Tayama | 2002-12-24 |
| 6477833 | Engine exhaust emission control | Akira Tayama, Toshikazu Shiino, Kaname Naganuma | 2002-11-12 |
| 6381954 | Air/fuel ratio control system of internal combustion engine | Masatomo Kakuyama, Akira Tayama, Osamu Matsuno | 2002-05-07 |
| 6362925 | Lens group zoom lens system, and display device having phototaking function | Tohru Nakamura | 2002-03-26 |
| 6359738 | Two-group zoom lens system and display device having phototaking function | Tohru Nakamura | 2002-03-19 |