Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5227207 | Photoconverter | — | 1993-07-13 |
| 4924143 | Colored fluoroescent display lamp assembly | Hiroshi Imamura, Eiji Shiohama, Shoiti Morii, Koji Hiramatsu | 1990-05-08 |
| 4780645 | Electronic light radiation tube | Koji Hiramatsu, Tadao Uetsuki, Ryohei Itatani | 1988-10-25 |
| 4719386 | Photoconverter and lamp utilizing multi-quantum emission | — | 1988-01-12 |
| 4665341 | Colored fluorescent lamp assembly | Hiroshi Imamura, Katsumasa Nakai, Masahiro Higashigawa | 1987-05-12 |
| 4603277 | Fluorescent lamp with bent tubes and support spacer within outer bulb | Hiroshi Imamura | 1986-07-29 |