Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841383 | Control pulse recording circuit for magnetic recording and reproducing apparatus | Naomichi Nishimoto, Takeshi Okauchi | 1989-06-20 |
| 4811122 | Magnetic recording/reproducing apparatus which accomodates different tape types | Kenji Shibayama, Yutaka Isobe, Masahiko Tsuruta, Hiroshi Yamada | 1989-03-07 |