Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890169 | Magnetic tape recording and/or reproducing apparatus with slow motion effect | Masaharu Hayakawa | 1989-12-26 |
| 4841399 | Magnetoresistive magnetic head including zirconium sheet film | Masahiro Kitada, Noboru Shimizu, Hideo Tanabe, Hitoshi Nakamura, Tooru Takeura +1 more | 1989-06-20 |