Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4592977 | Lithographic printing plate | Tsutomu Naganuma, Sigeru Hirayama, Manabu Sawada, Tsuneo Tanaka, Isao Kumano | 1986-06-03 |
| 4268158 | Dry planographic printing apparatus | Tsutomu Naganuma, Hisao Hoshi, Kaneki Yoshida | 1981-05-19 |
| 4209551 | Method of fabricating a phosphor screen of a color television picture tube | Tatsuo Masaki, deceased, Keiji Miyajima, Kenzo Fukuyoshi | 1980-06-24 |