Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833001 | Glass substrate for a magnetic disc and process for its production | Takashi Kijima, Takaaki Sera, Takayuki Kobayashi, Shunji Takakusa, Hiroshi Ogata | 1989-05-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833001 | Glass substrate for a magnetic disc and process for its production | Takashi Kijima, Takaaki Sera, Takayuki Kobayashi, Shunji Takakusa, Hiroshi Ogata | 1989-05-23 |