Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6800009 | Bulb-form lamp and its manufacturing method | Tetsuo Matsuba, Takenori Shibata, Takeshi Matsumura | 2004-10-05 |
| 6734633 | Bulb-form lamp and manufacturing method of lamp case | Tetsuo Matsuba, Masato Kawase, Tsuneo Miyata, Tomotaka Arikawa, Takenori Shibata +1 more | 2004-05-11 |
| 6717341 | Bulb-form lamp and its manufacturing method | Tetsuo Matsuba, Takenori Shibata, Takeshi Matsumura | 2004-04-06 |