Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5209426 | Magnetic tape cassette with a plurality of independently movable protective plate members | — | 1993-05-11 |
| 4740857 | Tinted tape cassette having an optical tape sensing construction | — | 1988-04-26 |
| 4688126 | Tape guide arrangement for helical scan magnetic recording and playback apparatus | — | 1987-08-18 |
| 4602300 | Adapter for a miniature type tape cassette | Haruki Ogata, Hiroyuki Umeda | 1986-07-22 |
| D277568 | Video tape cassette lower half casing | Haruki Ogata | 1985-02-12 |
| D277567 | Video tape cassette upper half casing | Haruki Ogata | 1985-02-12 |
| 4494161 | Tape cassette | Haruki Ogata, Hiroyuki Umeda | 1985-01-15 |
| 4477850 | Adapter for a miniature type tape cassette | Haruki Ogata, Hiroyuki Umeda | 1984-10-16 |
| 4476505 | Miniature type tape cassette | Haruki Ogata, Hiroyuki Umeda | 1984-10-09 |
| 4452407 | Tape cassette having a reel braking mechanism | Haruki Ogata, Hiroyuki Umeda | 1984-06-05 |
| 4432510 | Tape cassette | Haruki Ogata, Hiroyuki Umeda | 1984-02-21 |
| 4428482 | Storage case for a cassette | — | 1984-01-31 |