Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6488867 | Organic fluorescent whitening pigment composition having an excellent hiding power | Takao Yanagisawa, Shigehiro Matsumoto, Kunio Shimabukuro | 2002-12-03 |
| 6226455 | Shooting apparatus | Kouichi Ishimoto, Hiroaki Kimura, Kenta Fujimoto, Hamao Horiguchi, Kazukuni Hiraoka | 2001-05-01 |
| 6140477 | Near-infrared ray absorbing polyazo compound | Takao Yanagisawa, Shigehiro Matsumoto, Kunio Shimabukuro | 2000-10-31 |
| 5606055 | Organic white pigment | Takao Yanagisawa | 1997-02-25 |
| 5514213 | Organic white pigment | Takao Yanagisawa | 1996-05-07 |
| 5497461 | Data transmission error control apparatus | Masakazu Furuta | 1996-03-05 |
| 5263715 | Dice displaying apparatus for a computer game machine | Hiroyoshi Hashimoto | 1993-11-23 |