Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7358302 | Composition for light-scattering film and light-scattering film using the same | Kana Okazaki, Masayuki Kawashima, Hiromitsu Ito | 2008-04-15 |
| 6335601 | Wiper control device | Masaru Kato, Haruo Yamazaki | 2002-01-01 |
| 6324145 | Digital data reproducing apparatus and reproduction signal binarization level correcting method | Motoyuki Kobayashi, Ryusuke Horibe, Yasuaki Edahiro | 2001-11-27 |
| 6101271 | Gradation correction method and device | Haruo Yamashita, Hideshi Ishihara | 2000-08-08 |
| 6028407 | Wiper control device | Nobuo Yoshioka, Junichi Takao | 2000-02-22 |
| 5998883 | Wiper control device | Haruo Yamazaki, Eisaku Hori | 1999-12-07 |
| 5878007 | Anti-wobble optical medium and tracking method and apparatus | Mitsuro Moriya, Hiroyuki Yamaguchi, Shin-ichi Yamada | 1999-03-02 |
| 5808653 | Thermal gradation printing apparatus | Haruo Yamashita, Hideshi Ishihara | 1998-09-15 |
| 5661575 | Gradation correction method and device | Haruo Yamashita, Hideshi Ishihara | 1997-08-26 |
| 5644351 | Thermal gradation printing apparatus | Haruo Yamashita, Hideshi Ishihara | 1997-07-01 |
| 5539443 | Printer utilizing temperature evaluation and temperature detection | Yoshihiro Mushika, Haruo Yamashita | 1996-07-23 |
| 5508995 | Optical disk capable of recording information on both groove and land tracks | Mitsurou Moriya, Yasuhiro Sugihara, Shunji Oohara, Shin-ichi Yamada | 1996-04-16 |
| 5448379 | Method and apparatus for forming color images by converting a color signal to a further color density signal | Hideshi Ishihara, Haruo Yamashita | 1995-09-05 |
| 5444682 | Tracking control apparatus | Shinichi Yamada, Mitsurou Moriya, Hiroyuki Yamaguchi, Osamu Yamaguchi, Yoshihiro Kanda | 1995-08-22 |
| 5432869 | Image signal processing method and apparatus | Haruo Yamashita, Tsumoru Fukushima | 1995-07-11 |
| 5422738 | Color image forming method and an apparatus employed therefor, and a correction factor determining method | Hideshi Ishihara, Haruo Yamashita | 1995-06-06 |
| 5349373 | Thermal head drive unit | Haruo Yamashita, Yoshihiro Mushika, Hideshi Ishihara | 1994-09-20 |
| 5315381 | Color image forming apparatus | Haruo Yamashita, Hideshi Ishihara | 1994-05-24 |
| 5296920 | Color gradation correction method and apparatus | Shigeo Sakaue, Susumu Maruno, Haruo Yamashita, Hideshi Ishihara | 1994-03-22 |
| 5237625 | Image contour enhancing device | Haruo Yamashita, Hideshi Ishihara | 1993-08-17 |
| 5138241 | Raindrop detector for a wiper motor | Hiroyuki Shimizu, Masaru Kato, Yoshinori Nagamine | 1992-08-11 |
| 4857813 | Self-stopping motor control circuit | Masaru Kato | 1989-08-15 |