Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844370 | Method and device for winding magnetic tape using magnetic alignment | Masaaki Sakaguchi, Mitsunobu Usui, Hiroshi Chikamasa, Keisuke Wakatsuki | 1989-07-04 |
| 4841403 | Lid spring locking structure in a magnetic tape cassette | Masao Tsuruta, Akira Honjyoh, Kengo Oishi, Osamu Suzuki | 1989-06-20 |
| 4828196 | Device for winding magnetic tape using magnetic alignment | Masaaki Sakaguchi | 1989-05-09 |
| 4770359 | Tape defect eliminating method and apparatus | — | 1988-09-13 |
| 4648562 | Magnetic tape winding apparatus | — | 1987-03-10 |
| 4501630 | Method of splicing a magnetic recording tape and a leader tape | — | 1985-02-26 |
| 4478376 | Method of winding magnetic recording tape | Masaaki Sakaguchi, Shinichi Satoh, Hiroshi Chikamasa | 1984-10-23 |
| 4328066 | Tape splicing apparatus | Shoji Imai | 1982-05-04 |