Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4358782 | Semiconductor device | Kaoru Takasuka, Tatsumi Arakawa, Fumio Matushita | 1982-11-09 |
| 4347310 | Heat developable silver image forming materials | Tetsuo Shiga, Masaru Ozaki, Tatsumi Arakawa, Takeo Kimura | 1982-08-31 |