Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4924143 | Colored fluoroescent display lamp assembly | Hiroshi Imamura, Makoto Toho, Eiji Shiohama, Koji Hiramatsu | 1990-05-08 |
| 4724361 | High pressure discharge lamp | Shigeaki Wada, Atsunori Okada | 1988-02-09 |