Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809087 | Apparatus for recording a discriminative signal | Yasuharu Shimeki, Hiroshi Matsushima, Masamitsu Ohtsu | 1989-02-28 |
NK
Nobuyoshi Kihara
Overall (1989): #72,917 of 140,708Top 55%
1
Patents 1989