Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5811924 | Fluorescent lamp | Miwa Okumura, Naotoshi Matsuda, Keiko Albessard, Masaaki Tamatani, Iwao Mitsuishi | 1998-09-22 |
| 5086252 | Thin film electroluminescence device | — | 1992-02-04 |
| 5029320 | Thin film electroluminescence device with Zn concentration gradient | Naotoshi Matsuda, Hideo Yoshikawa, Masaaki Tamatani | 1991-07-02 |
| 4553227 | Optical pickup | Atsushi Takahashi, Shitta Shingu, Yoshinori Higuchi, Akira Yamada | 1985-11-12 |