Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5178930 | Thermal transfer recording medium | Kouichi Sakai, Sadashi Ueda, Hiroshi Shibano | 1993-01-12 |
| 5053905 | Hardened center pin contract area on magnetic disk cartridge | Syuji Kiji | 1991-10-01 |