Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5945210 | Porous film and preparation process thereof | Toshiyuki Ishii, Takayuki Kajihara, Tsutomu Iseki, Toshiyuki Enomoto | 1999-08-31 |
| 5710856 | Light reflective sheet and light reflector using it | Toshiyuki Ishii, Takayuki Kajihara, Naoko Takemura | 1998-01-20 |
| 5299069 | Magnetic tape format for recording digital picture data | Nobuyuki Kohsaka | 1994-03-29 |
| 5247399 | Digital video recording and playback apparatus using different read and write operations for each individual memory | — | 1993-09-21 |