Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6646666 | Method of forming a forgery-preventive image and apparatus therefor | — | 2003-11-11 |
| 6619035 | Exhaust emission control device of internal combustion engine | Souichi Matsushita, Yukihiro Tsukasaki, Kotaro Hayashi, Shinobu Ishiyama, Yasuhiro Ohtsubo +7 more | 2003-09-16 |