Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4613919 | Magnetic erasing head | Norio Miyatake, Mitsuaki Uenishi, Nobuo Kashimura | 1986-09-23 |
| 4470479 | Method of making metal coated foil speaker diaphragm | Hideaki Inoue, Hiroshi Takeuchi, Hidetsugu Kawabata | 1984-09-11 |
| 4251297 | Method for manufacturing magnetic head using boronizing treatment | Hidetsugu Kawabata, Yuji Nagata, Toshio Shimizu | 1981-02-17 |
| 4216271 | Composite diaphragm for speaker | Hiroshi Takeuchi, Hideaki Inoue, Hidetsugu Kawabata | 1980-08-05 |