Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4745486 | Helical scan type magnetic recording apparatus | Tsunehisa Ohira | 1988-05-17 |
| 4740850 | Magnetic tape loading apparatus for tape recorder | — | 1988-04-26 |
| 4731681 | Vertical magnetic recording and playback apparatus | — | 1988-03-15 |
| 4602300 | Adapter for a miniature type tape cassette | Kimio Ogawa, Hiroyuki Umeda | 1986-07-22 |
| 4544970 | Adapter for a miniature type tape cassette | — | 1985-10-01 |
| D277567 | Video tape cassette upper half casing | Kimio Ogawa | 1985-02-12 |
| D277568 | Video tape cassette lower half casing | Kimio Ogawa | 1985-02-12 |
| 4494161 | Tape cassette | Kimio Ogawa, Hiroyuki Umeda | 1985-01-15 |
| 4477850 | Adapter for a miniature type tape cassette | Kimio Ogawa, Hiroyuki Umeda | 1984-10-16 |
| 4476505 | Miniature type tape cassette | Kimio Ogawa, Hiroyuki Umeda | 1984-10-09 |
| 4452407 | Tape cassette having a reel braking mechanism | Kimio Ogawa, Hiroyuki Umeda | 1984-06-05 |
| 4449676 | Tape cassette having a reel displacement limiting mechanism | Hiroyuki Umeda | 1984-05-22 |
| 4432510 | Tape cassette | Kimio Ogawa, Hiroyuki Umeda | 1984-02-21 |
| D272062 | Video tape cassette | Masamitsu Shibata | 1984-01-03 |