Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5335876 | Tape cassette lid-locking device | Osamu Shibazaki | 1994-08-09 |
| 5318826 | Information recording medium comprising a silver nalide light sensitive layer, and two superposed magnetic layers which differ in coercivity | Yasuhisa Yamauchi, Koichi Nagayasu | 1994-06-07 |
| 5294525 | Silver halide photographic light-sensitive material capable of magnetic-recording | Yasuhisa Yamauchi, Eiichi Ueda | 1994-03-15 |
| 5284716 | Magnetic recording medium | Yasushi Nakano, Noboru Koyama, Masahiro Umemura, Takemasa Namiki, Seiichi Tobisawa +2 more | 1994-02-08 |