Issued Patents All Time
Showing 25 most recent of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12300278 | Magnetic disk device and write method | Ryuta Kumagai | 2025-05-13 |
| 11024337 | Magnetic disk device and write processing method | — | 2021-06-01 |
| 9433212 | Plant growth regulator and method for using the same | Nao Tokubuchi, Shingo Tamura, Ken Kuriyama | 2016-09-06 |
| 8154814 | Method of refreshing data stored on a disk | Yasuhiko Ichikawa | 2012-04-10 |
| 8136131 | Optical pickup and production method thereof | Masaki Murayama | 2012-03-13 |
| 7986594 | Optical pickup | Masaki Murayama | 2011-07-26 |
| 7925828 | Magnetic disk drive refreshing data written to disk and data refreshment method applied to magnetic disk drive | Yasuhiko Ichikawa | 2011-04-12 |
| 7870460 | Magnetic disk drive capable of refreshing data written to disk and data refresh method | Taro Iketaki, Akio Mizuno, Yasuhiko Ichikawa | 2011-01-11 |
| 7031020 | Image processing method, apparatus and controller | Akio Aoki, Kaoru Seto, Seiji Sagara, Satoshi Shimizu, Katsuhiko Nishimura +1 more | 2006-04-18 |
| 6996667 | Method and apparatus for rewriting program executed in disk drive | Yasumasa Nakano | 2006-02-07 |
| 6372755 | Stable medicinal compositions containing 4,5-epoxymorphinan derivatives | Nobuyuki Hanamura, Yasuhide Horiuchi, Ryoji Yoshii, Michio Hara | 2002-04-16 |
| 6111664 | Image processing method, apparatus and controller | Akio Aoki, Kaoru Seto, Seiji Sagara, Satoshi Shimizu, Katsuhiko Nishimura +1 more | 2000-08-29 |
| 6030108 | Waterproof lighting apparatus | Minoru Ishiharada, Itsuo Tanuma, Kazuo Naito, Yasuhiko Matsumuro, Kiyoshi Koyama | 2000-02-29 |
| 5873010 | Image forming apparatus for performing correction control, based on density of toner image | Naoki Enomoto, Haruo Fujii, Hiroshi Sasame, Tatsuhiko Hayakawa, Tatsuya Kobayashi +4 more | 1999-02-16 |
| 5517281 | Image forming apparatus featuring a plurality or relatively moveable casings | Toshiaki Miyashiro, Shinkichi Takahashi, Eihiro Sakaki, Fumihiro Ueno | 1996-05-14 |
| 5508796 | Image forming apparatus with select relation among distances in recording material conveyance path | Hiroshi Sasame, Haruo Fujii, Toshihiko Ochiai, Motoi Kato, Tatsuya Kobayashi +7 more | 1996-04-16 |
| 5406392 | Image recording apparatus using multiple recording of the same image information to obtain high resolution and tonality | Yuji Akiyama | 1995-04-11 |
| 5333227 | Optical waveguide hose | Minoru Ishiharada, Rikuhei Itou, Itsuo Tanuma, Kazuo Naito, Yasuhiko Matsumuro +1 more | 1994-07-26 |
| 5288559 | Coating composition for metal sheet for two-piece can and metal sheet coated with the composition | Masami Oka, Hiroshi Fujimoto, Hiroshi Tachika | 1994-02-22 |
| 5220386 | Image forming apparatus having cleanable transfer material carrying means | Motoi Katoh, Fumihiro Ueno | 1993-06-15 |
| 5214480 | Image forming apparatus with transfer sheet bearing means | Yujiro Ando, Shinkichi Takahashi, Eihiro Sakaki, Fumihiro Ueno, Toshiaki Miyashiro | 1993-05-25 |
| 5143763 | Oxygen scavenger | Shinichi Yamada, Isamu Sakuma, Yoshio Himeshima, Tadahiro Uemura, Akira Shirakura | 1992-09-01 |
| D312634 | Projecting television receiver | Kouichi Kasama, Taisuke Kashima, Toru Kiyota, Ryuichiro Tanaka | 1990-12-04 |
| 4939003 | Liquid crystal element | Takamasa Harada, Kokichi Ito, Koji Iwasa, Norio Kawabe, Hiroyuki Ikeuchi | 1990-07-03 |
| 4814132 | Process for preparing a thin film | Norio Kawabe | 1989-03-21 |