Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809031 | Photometer for use in a camera | Akira Takahashi, Akira Ueno | 1989-02-28 |
TS
Touru Sakaguchi
Overall (1989): #48,246 of 140,708Top 35%
1
Patents 1989