Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4747563 | Tape cassette reel | Masahiro Makino | 1988-05-31 |
| 4663688 | Magnetic tape cassette with improved spring member | Masahiro Makino | 1987-05-05 |
| 4646189 | Magnetic tape cassette with door opening mechanism | Tsuneo Nemoto, Shuichi Yamashina, Hiroyuki Uchida | 1987-02-24 |
| 4507692 | Tape cassette | — | 1985-03-26 |
| 4452408 | Tape cassette | — | 1984-06-05 |
| 4191984 | Tape cassette | Yoshitaka Tsukidate | 1980-03-04 |