Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881216 | Optical head in an optical memory device | Toshihisa Deguchi, Yoshikazu Fujii, Tetsuya Inui, Kenji Ohta | 1989-11-14 |
SK
Schohichi Katoh
Overall (1989): #139,289 of 140,708Top 100%
1
Patents 1989