Issued Patents All Time
Showing 26–50 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7468769 | Retardation compensator and single-panel type color liquid crystal projector | — | 2008-12-23 |
| 7174505 | Display engagement system | Keisuke Katada | 2007-02-06 |
| 7079209 | Retardation compensation system and liquid crystal projector with different compensation for one of the primary colors | — | 2006-07-18 |
| 7068393 | Image ratio measuring method for image forming apparatus | Nobuatsu Sasanuma, Makoto Kanbayashi, Kazuo Suzuki, Yuichi Ikeda, Tomohisa Itagaki +1 more | 2006-06-27 |
| 7037148 | Theft prevention method and apparatus of personal watercraft | Yoshinori Tsumiyama | 2006-05-02 |
| 6912089 | Optical diffusion film and process of producing optical diffusion film | Keisuke Ozeki, Shintaro Washizu | 2005-06-28 |
| 6779474 | Personal watercraft | Yoshiyuki Kuroyanagi | 2004-08-24 |
| 6778239 | Light diffusing plate and display apparatus | Toshitaka Agano, Akira Yamaguchi | 2004-08-17 |
| 6761122 | Stand-up type personal watercraft | Yoshiyuki Kuroyanagi | 2004-07-13 |
| 6667794 | Collimator utilizing wavelength selective reflection and backlight system | Kohei Arakawa, Fumihiko Mochizuki, Mitsuyoshi Ichihashi | 2003-12-23 |
| 6551152 | Jet-propulsive watercraft | Yoshimoto Matsuda, Keiji Takahashi | 2003-04-22 |
| 6415728 | Personal watercraft | Kiyoaki Maeda, Yoshinori Tsumiyama, Takehiro Nakashima | 2002-07-09 |
| 6384856 | Image formation apparatus correction system | Kazuo Suzuki | 2002-05-07 |
| 6308650 | Hatch cover structure for personal watercraft | Yoshinori Tsumiyama, Masafumi Ikeyama | 2001-10-30 |
| 6204870 | Image formation apparatus control by measurement of image patterns having different emission rising characteristics | Kazuo Suzuki | 2001-03-20 |
| 6192823 | Personal watercraft | Yoshinori Tsumiyama, Tomohiro Kanazawa, Kiyoaki Maeda, Kunihiko Kamio, Joe Heim +2 more | 2001-02-27 |
| 6183318 | Reverser for watercraft | Yoshinori Tsumiyama, Tomohiro Kanazawa, Masafumi Ikeyama | 2001-02-06 |
| 6179672 | Locking mechanism of deflector for watercraft | Yoshinori Tsumiyama, Tomohiro Kanazawa, Masafumi Ikeyama | 2001-01-30 |
| 6158378 | Deck floor for personal watercraft | Yoshinori Tsumiyama | 2000-12-12 |
| 6112686 | Storage structure for personal watercraft | Yoshinori Tsumiyama, Kiyoaki Maeda, Kunihiko Kamio, Joe Heim, William Peter Engle, Jr. +1 more | 2000-09-05 |
| 6092786 | Gate valve | Hiroki Oka, Yoji IIZUKA, Jun Hirose, Tatsuya Nakagome, Hiroshi Koizumi +1 more | 2000-07-25 |
| 5889235 | Combination weighing method and combination balance | Shozo Kawanishi, Hiroshi Higuchi, Yoshitaka Mikata, Seiji Yamano | 1999-03-30 |
| 5730833 | Image transfer apparatus | Seiji Hatakeyama, Yoshihisa Usami | 1998-03-24 |
| 5676915 | Method for desulfurizing exhaust gas | Shigeo Iiyama, Kozo Ohsaki | 1997-10-14 |
| 5547592 | Lubricant for metallurgy | Michiyoshi Sugioka, Koichi Ito | 1996-08-20 |