Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5675532 | Recording medium and recording/reproduction method | Nobuhiro Gemma, Syun Egusa, Kuniyoshi Tanaka, Hiroyuki Hieda | 1997-10-07 |
| 5663115 | Thermal recording medium and recording method | Masami Sugiuchi, Satoshi Takayama, Hirohisa Miyamoto, Hideyuki Nishizawa, Sawako Fujioka +2 more | 1997-09-02 |