Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6762550 | Electrodeless discharge lamp | Takeshi Arakawa, Toshiaki Kurachi, Kouji Miyazaki | 2004-07-13 |
| D485918 | Part of fluorescent lamp | Koichi Katase | 2004-01-27 |
| 6583543 | Fluorescent lamp with improved productivity, and manufacturing method for the fluorescent lamp | Takeshi Matsumura | 2003-06-24 |
| D474850 | Part of fluorescent lamp | Koichi Katase | 2003-05-20 |
| 6558019 | Bulb-shaped fluorescent lamp | Shiro Iida, Takeshi Matsumura, Nobuharu Hata | 2003-05-06 |
| 6469427 | Lamp having improved electrical connection | Takeshi Matsumura, Shiro Iida | 2002-10-22 |
| 6456001 | Fluorescent lamp having V-shaped grooves for guiding lead wire | Shiro Iida, Takeshi Matsumura, Tetsuya Tahara | 2002-09-24 |
| 6431725 | Bulb-shaped fluorescent lamp | Shiro Iida, Takeshi Matsumura, Nobuharu Hata | 2002-08-13 |
| 6367947 | Fluorescent lamp having excellent light distribution and high impact-resistance | Takeshi Matsumura, Shiro Iida, Nobuharu Hata | 2002-04-09 |
| 6369504 | Low pressure mercury vapor discharge lamp | Takeshi Matsumura | 2002-04-09 |
| 6297585 | Fluorescent lamp with thermal protection element manufacturing method for the fluorescent lamp and a lighting apparatus using the same | Yoji Tashiro | 2001-10-02 |
| 6172452 | Low pressure mercury vapor discharge lamp with heat conductive component | Shiro Iida, Kenji Nakano, Masao Yukawa | 2001-01-09 |
| 6031324 | Annulus fluorescent lamp | Takeshi Matsumura | 2000-02-29 |
| D417193 | Base for fluorescent lamp | Akio Kitada | 1999-11-30 |
| 5977692 | Annulus fluorescent lamp with overheat protection | Takeshi Matsumura | 1999-11-02 |
| 5844357 | Light-bulb-shaped fluorescent lamp | Shiro Iida, Takeshi Matsumura, Kenji Nakano | 1998-12-01 |