Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6409370 | Vehicular lamp lens having an indented front surface | Kazuo Akiyama, Fujihiko Sugiyama | 2002-06-25 |
| 6290792 | Method and apparatus for producing lens for vehicular lamp | Kazuo Akiyama, Fujihiko Sugiyama | 2001-09-18 |
| 6280566 | Vibration welding apparatus having an easy to assemble jig structure | Toshitaka Naito, Masahiko Koizumi, Seiichi Gyotoku, Fuzihiko Sugiyama | 2001-08-28 |
| 6273980 | Vibration welding apparatus and vibration welding method | Kazuo Akiyama, Fujihiko Sugiyama | 2001-08-14 |
| 6033505 | Method for vibration welding of vehicle lamp and apparatus for the same | Fujihiko Sugiyama, Shigeyuki Soga | 2000-03-07 |