Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6527173 | System of issuing card and system of certifying the card | Kenji Narusawa, Toshiro Kohno, Tadashi Aizawa, Yoshinari Yokochi, Haruo Matsuo +1 more | 2003-03-04 |
| 6160782 | Holographic storage medium and reproduction of data therefrom | Kanji Kayanuma, Kenji Narusawa | 2000-12-12 |
| 5640230 | Electrostatic latent image developing methods and apparatuses for use with the methods | Tsuyoshi Ono, Hiroki Nakagami | 1997-06-17 |
| 5493325 | Graduation reproduction in optical recording | Takashi Yamamura | 1996-02-20 |
| 5442426 | Wet type electro-photographic recording apparatus | Takashi Yamamura, Toshiya Kobashi, Ryuji Horiuchi | 1995-08-15 |
| 5366835 | Graduation reproduction in optical recording | Takashi Yamamura | 1994-11-22 |
| 5255351 | Pulse-width modulation device | Itsuo Takanashi, Takashi Yamamura, Toshikatsu Ichitou | 1993-10-19 |