Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6653785 | Arc tube with pinch seal and dimensional relationship and method for forming the same | Michio Takagaki, Masaya Shido, Yukihiro Kobayakawa, Nobuyuki Kasuya, Takeshi Fukuyo +1 more | 2003-11-25 |
| 6557379 | Method of producing an arc tube | Masakazu Nagasawa, Hiroshi Goto | 2003-05-06 |
| 6528931 | Electric light bulb with base held by positioning ring having elastic pieces and weld pieces | Kazumasa Sugiyama, Hitoshi Kawasaki | 2003-03-04 |