Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816946 | Method of manufacturing thin film magnetic head | Toru Kira, Mitsuhiko Yoshikawa | 1989-03-28 |
| 4800449 | DAT recorder with automatic cassette movement | — | 1989-01-24 |
HY
Hidenori Yamasaki
Overall (1989): #25,486 of 140,708Top 20%
2
Patents 1989