Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8244146 | Image forming apparatus and image forming method with error corrected potential measurements | Yoshitaka Zaitsu, Takashi Ushijima, Kaoru Noguchi, Kazuhiko Kato | 2012-08-14 |
| 7990159 | Potential measurement apparatus and image forming apparatus | Kazuhiko Kato, Yoshitaka Zaitsu, Takashi Ushijima, Kaoru Noguchi, Atsushi Kandori +1 more | 2011-08-02 |
| 7919889 | Oscillator device, optical deflector and optical instrument using the same | Takashi Ushijima | 2011-04-05 |
| 7710129 | Potential measurement apparatus and image forming apparatus | Yoshitaka Zaitsu, Takashi Ushijima, Atsushi Kandori, Kaoru Noguchi, Kazuhiko Kato +1 more | 2010-05-04 |
| 7639020 | Potential sensor and image forming apparatus having potential sensor | Takashi Ushijima, Kaoru Noguchi, Atsushi Kandori, Yoshitaka Zaitsu, Kazuhiko Kato +1 more | 2009-12-29 |
| 6891949 | Direct current vibration motor and armature structure | Katsuhisa Matsuura, Moritaka Goto, Minoru Makiyo, Yoshitomo Uno, Takashi Susukida | 2005-05-10 |
| 6250643 | Damper plate and method for producing thereof | Hirokazu Takayama, Atsushi Kaneko | 2001-06-26 |
| 6126774 | Plastic product and manufacturing method therefor | Hirokazu Takayama | 2000-10-03 |
| 5989664 | Plastic product and manufacturing method therefor | Hirokazu Takayama | 1999-11-23 |
| 5823033 | Method for producing a damper plate having substantially polygon patterns | Hirokazu Takayama, Atsushi Kaneko | 1998-10-20 |
| 5579506 | Semiconductor memory device having means for temporarily storing operation command data | — | 1996-11-26 |
| 5566371 | Semiconductor memory device capable of data transfer between memory arrays coupled to different data pins and operating method thereof | — | 1996-10-15 |
| 5544093 | Dual port multiple block memory capable of time divisional operation | — | 1996-08-06 |
| 5379263 | Semiconductor memory device which can provide required data flexibly under simplified control and operating method therefor | Masahiko Ishikawa | 1995-01-03 |
| 5341332 | Semiconductor memory device capable of flash writing and method of flash writing | Kazunari Inoue | 1994-08-23 |
| 5321662 | Dynamic random access memory device having a self refresh mode | — | 1994-06-14 |
| 5307323 | Dual-port memory | Hiroyuki Fukuda | 1994-04-26 |
| 5293347 | Semiconductor memory device having read/write operation improved in pipe line processing | — | 1994-03-08 |
| 5177375 | Power on reset circuit for semiconductor integrated circuit device | Shinji Kawai | 1993-01-05 |
| 4931995 | Writing method in DRAM | Yasuhiko Okasaka | 1990-06-05 |
| 4640608 | Cleaning method for use in electrophotography | Toshiaki Higaya, Masaaki Ogura, Takato Yano, Kiyozo Hashizume, Nachio Seko | 1987-02-03 |
| 4580121 | Magnet roll and method for manufacturing the same | — | 1986-04-01 |
| 4391508 | Counter and timing mechanism for copying apparatus | Mitsuo Shibusawa | 1983-07-05 |
| 4256401 | Image density adjustment method and apparatus | Itaru Fujimura, Hitoshi Nakamura, Shoji Kuroishi, Nachio Seko | 1981-03-17 |
| 4214832 | Electrostatic copying machine comprising improved document scanning means | Masao Kono, Tatsuo Tani, Kenzo Ariyama | 1980-07-29 |