Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6028824 | Magnetooptical recording medium allowing overwriting with two or more magnetic layers | Yoichi Osato, Hisaaki Kawade, Eiichi Fujii, Tadashi Kobayashi | 2000-02-22 |
| 5783300 | Magnetooptical recording medium allowing overwriting with two or more magnetic layers and recording method utilizing the same | Yoichi Osato, Hisaaki Kawade, Eiichi Fujii, Tadashi Kobayashi | 1998-07-21 |
| 5525378 | Method for producing a magnetooptical recording medium | Yoichi Osato, Hisaaki Kawade, Eiichi Fujii, Tadashi Kobayashi | 1996-06-11 |
| 5481410 | Magnetooptical recording medium allowing overwriting with two or more magnetic layers and recording method utilizing the same | Yoichi Osato, Hisaaki Kawade, Eiichi Fujii, Tadashi Kobayashi | 1996-01-02 |
| 5289451 | Optical information recording/reproduction apparatus including means for detecting the type of recording medium | Takaaki Ashinuma, Shigeru Aoi, Makoto Shiho, Yasuo Suzuki, Takehiko Shibata +2 more | 1994-02-22 |
| 5132945 | Magnetooptical recording medium allowing overwriting with two or more magnetic layers and recording method utilizing the same | Yoichi Osato, Hisaaki Kawade, Eiichi Fujii, Tadashi Kobayashi | 1992-07-21 |
| 4803752 | Cleaning device | — | 1989-02-14 |
| 4799662 | Sheet feeding device | Seiji Sagara, Hiroyoshi Maruyama, Hiroyuki Miyake, Shinichi Tanada, Kazuo Kagiura +2 more | 1989-01-24 |
| 4763167 | Image forming apparatus | Tsutomu Watanabe, Masafumi Wataya, Takaaki Ashinuma, Yoshihiko Hirose, Yasuo Suzuki | 1988-08-09 |
| 4714940 | Image processing apparatus having display means to monitor and display information from a date input section | Yutaka Inoue, Mitsuru Kurata, Masao Hosaka, Toshiaki Yagasaki, Hiroshi Tanioka +1 more | 1987-12-22 |
| 4646249 | Image processing system | Hiroshi Tanioka, Tadashi Yamakawa, Yutaka Inoue, Masao Hosaka, Toshiaki Yagasaki +1 more | 1987-02-24 |
| 4589758 | Image forming apparatus having a pair of openable housing sections | Mitsuru Kurata | 1986-05-20 |
| 4571053 | Image forming apparatus | Mitsuru Kurata, Hiroshi Tanioka, Tadashi Yamakawa, Yutaka Inoue, Masao Hosaka +1 more | 1986-02-18 |
| 4442190 | Method and apparatus for image formation utilizing a blocking member for blocking an ion flow through a photosensitive screen to provide a non-image area | Tadayuki Kitajima | 1984-04-10 |
| 4421401 | Image recording apparatus | Kazuo Kagiura, Hiroyuki Miyake, Seiji Sagara, Nobukazu Sasaki, Takaji Yonemori | 1983-12-20 |
| 4344700 | Mechanism for mounting and dismounting a screen-like photosensitive medium | Tadayuki Kitajima | 1982-08-17 |