Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4568989 | Mode changing apparatus for a tape recorder | Kenji Ohhara, Yoshinori Yamamoto, Hisanori Watanabe, Yasuo Osada | 1986-02-04 |
| 4547823 | Mode changing apparatus | Kenji Ohhara, Yoshinori Yamamoto, Akira Takada, Hisanori Watanabe, Yasuo Osada | 1985-10-15 |