Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D304031 | Cassette for a video tape recorder | Hanji Takahashi, Yoshitomo Itakura | 1989-10-17 |
| D303796 | Cassette for a video tape recorder | Hanji Takahashi, Yoshitomo Itakura | 1989-10-03 |