Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805348 | Flat lapping machine | Hatsuyuki Arai, Isao Nagahashi, Kazumi Yasuda, Shiro Furusawa, Kazuhiko Hirata +5 more | 1989-02-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805348 | Flat lapping machine | Hatsuyuki Arai, Isao Nagahashi, Kazumi Yasuda, Shiro Furusawa, Kazuhiko Hirata +5 more | 1989-02-21 |