Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6800009 | Bulb-form lamp and its manufacturing method | Shinichiro Ishitsuka, Takenori Shibata, Takeshi Matsumura | 2004-10-05 |
| 6793373 | Bulb-type lamp and manufacturing method for the bulb-type lamp | Yoshinori Kakuno | 2004-09-21 |
| 6736526 | Bulb-type lamp and manufacturing method for the bulb-type lamp | Yoshinori Kakuno | 2004-05-18 |
| 6734633 | Bulb-form lamp and manufacturing method of lamp case | Shinichiro Ishitsuka, Masato Kawase, Tsuneo Miyata, Tomotaka Arikawa, Takenori Shibata +1 more | 2004-05-11 |
| 6717341 | Bulb-form lamp and its manufacturing method | Shinichiro Ishitsuka, Takenori Shibata, Takeshi Matsumura | 2004-04-06 |
| 6653770 | Lamp with internally attached eyelet lead, and method therefor | Takeshi Matsumura, Shinichiro Ishitsuka | 2003-11-25 |
| 6607290 | Tubular light bulb device | Makoto Inoue | 2003-08-19 |
| 6547582 | Lampholder | Yoshinori Kakuno | 2003-04-15 |
| 6525455 | Bulb-form lamp and its manufacturing method | Shinichiro Ishitsuka, Takenori Shibata, Takeshi Matsumura | 2003-02-25 |
| 6488538 | Tube lamp and its manufacturing method | Yoshinori Kakuno | 2002-12-03 |
| 6482061 | Method for producing lamps | Shinichiro Ishitsuka, Shiro Iida, Masaru Oyaizu | 2002-11-19 |