Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6657389 | Glow discharge lamp, electrode thereof and luminaire | Akiko Saitou, Shigeru Osawa, Nobuhiro Tamura, Yoshiyuki Matsunaga, Takashi Yorifuji +2 more | 2003-12-02 |
| 4701663 | Lamp having interference film | Akira Kawakatsu, Yooji Yuge, Tokuyoshi Saito, Umio Maeda | 1987-10-20 |