Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888211 | Process for preparation of vertical magnetic recording medium | Kenji Hayashi, Takayoshi Akamatsu, Satoshi Horiuchi | 1989-12-19 |
| 4876893 | Strain gauges for the pressure sensor | Yukihiro Kato, Masami Ishii, Ryohei Yabuno | 1989-10-31 |