Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5008789 | Fluorescent lamp having ultraviolet reflecting layer | Kiyotaka Arai, Hirofumi Sumoto | 1991-04-16 |
| 4890033 | Light-emitting composition and fluorescent lamp | Kouichi Okada, Yuji Itsuki, Kaname Tsuchikura | 1989-12-26 |