Issued Patents All Time
Showing 151–169 of 169 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6238834 | Magnetic toner for developing electrostatic images, process for producing it, image forming method and process cartridge | Osamu Tamura, Koichi Tomiyama, Shunji Suzuki | 2001-05-29 |
| 6146741 | Information recording medium and production process thereof | Kazumi Nagano | 2000-11-14 |
| 6098889 | Hybrid information recording medium with masking layer | Mizuho Hiraoka, Kazumi Nagano, Hiroshi Tanabe | 2000-08-08 |
| 6060202 | Toner for developing electrostatic images image forming method and process cartridge | Koichi Tomiyama, Keita Nozawa, Shunji Suzuki | 2000-05-09 |
| 5976752 | Toner and image forming method | Satoshi Matsunaga, Koichi Tomiyama, Yuichi Mizoh, Keita Nozawa, Minekazu Endo +2 more | 1999-11-02 |
| 5866477 | Method of polishing a chamfered portion of a semiconductor silicon substrate | Hiromi Wakabayashi, Kunimi Yoshimura | 1999-02-02 |
| 5858593 | Magnetic toner, apparatus unit and image forming method | Osamu Tamura, Koichi Tomiyama, Nobuyuki Okubo, Shunji Suzuki, Keita Nozawa | 1999-01-12 |
| 5750302 | Magnetic toner for developing electrostatic image, image forming process, and process cartridge | Koichi Tomiyama, Osamu Tamura, Nobuyuki Okubo, Shunji Suzuki | 1998-05-12 |
| 5572492 | Optical recording and reproducing method utilizing recording medium including recording regions formed by localized co-melted mixture of non-reactant materials | — | 1996-11-05 |
| 5548171 | Direct-current motor | Keisaku Zenmei, Shuzo Isozumi | 1996-08-20 |
| 5312714 | Optical recording medium, process for producing recording medium, and information recording method | — | 1994-05-17 |
| 5158859 | Optical recording medium | Hiroyuki Imatake, Mizuho Hiraoka, Hitoshi Yoshino, Sachiko Ichikawa, Seijiro Kato | 1992-10-27 |
| 5026623 | Optical recording medium | Hiroyuki Imataki, Mizuho Hiraoka, Hitoshi Yoshino, Sachiko Ichikawa, Seijiro Kato | 1991-06-25 |
| 4972402 | Optical card | Kyo Miura, Hisaaki Kawade | 1990-11-20 |
| 4965153 | Optical recording medium | Hiroyuki Imataki, Mizuho Hiraoka, Sachiko Ichikawa, Hitoshi Yoshino | 1990-10-23 |
| 4955360 | Heat-generating material for portable hair curler | Hiroo Takahashi, Yoshinori Kikuchi | 1990-09-11 |
| 4871649 | Optical recording medium and optical recording method using the same | Hiroyuki Imataki, Mizuho Hiraoka, Sachiko Ichikawa, Hitoshi Yoshino | 1989-10-03 |
| 4806437 | Vibration isolating mount | Hiroshi Yokoi, Hideyuki Imai | 1989-02-21 |
| 4364056 | Interactive graphic system | Yoshihiro Suzuki, Shuichi Nakagawa, Yasuo Wako, Mamoru Yamaguchi, Toshio Kimura | 1982-12-14 |