Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835752 | Device for driving and controlling optical head for use in optical disk system | Keiji Nakatsu, Masaharu Ogawa, Osamu Itou, Isao Watanabe, Kunimaro Tanaka | 1989-05-30 |
SH
Shigeo Hayashi
Overall (1989): #57,898 of 140,708Top 45%
1
Patents 1989