Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4743992 | Magnetic tape cassette | Kengo Oishi | 1988-05-10 |
| 4742416 | Magnetic tape cassette with U-shaped slide guard | Kengo Oishi | 1988-05-03 |
| 4742417 | Magnetic tape cassette with snap coupled U-shaped slide guard | Kengo Oishi | 1988-05-03 |
| 4719529 | Magnetic tape cassette incorporating prevention of unwanted rotation during transportation | Kengo Oishi | 1988-01-12 |
| 4706148 | Magnetic tape cassette | Kengo Oishi | 1987-11-10 |
| 4676453 | Magnetic tape cassette | Kengo Oishi | 1987-06-30 |
| 4648507 | Magnetic tape cassette storage case | Kengo Oishi | 1987-03-10 |
| 4627534 | Magnetic tape cassette storage case | Osamu Suzuki | 1986-12-09 |
| 4575023 | Magnetic tape cassette | Seiji Odate | 1986-03-11 |
| 4557380 | Magnetic tape cassette and storage case | Kengo Oishi, Osamu Suzuki, Yasumasa Iyota | 1985-12-10 |
| 4544976 | Pad provided in the interior of a videotape cassette | Kengo Oishi, Osamu Suzuki | 1985-10-01 |
| 4427166 | Magnetic tape cassette | Kengo Oishi, Masayoshi Moriwaki | 1984-01-24 |
| 4389690 | Magnetic tape cassette including a locking mechanism | Kengo Oishi, Osamu Suzuki | 1983-06-21 |