Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4652955 | Multi-head transducer assembly for helical scan video tape recorders | Kazuhiro Niwa, Masaharu Tsunekawa | 1987-03-24 |
| 4246619 | Electromagnetic transducer head | Shiro Hirai, Kunihide Sakai | 1981-01-20 |