Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4786255 | Group education system | Tamihei Hiramatsu, Tetsuzo Kano, Akira Masuda, Yoshiko Matsushita, Ryuji Suzuki +2 more | 1988-11-22 |
| 4723236 | Mechanism for controlling movements of cassette, cassette holder and head plate in tape cassette player | — | 1988-02-02 |