Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5065317 | Language laboratory systems | Tamihei Hiramatsu | 1991-11-12 |
| 4786255 | Group education system | Tamihei Hiramatsu, Taiji Kitami, Tetsuzo Kano, Akira Masuda, Ryuji Suzuki +2 more | 1988-11-22 |