Issued Patents All Time
Showing 1–25 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10557195 | Sputtering target and/or coil, and process for producing same | Nobuhito Makino | 2020-02-11 |
| 10276356 | Copper alloy sputtering target | Tomio Otsuki | 2019-04-30 |
| 9951412 | Sputtering target and/or coil, and process for producing same | Nobuhito Makino | 2018-04-24 |
| 9909196 | High-purity copper-cobalt alloy sputtering target | Tomio Otsuki | 2018-03-06 |
| 9704695 | Sputtering target and manufacturing method therefor | Tomio Otsuki, Takeo Okabe, Nobuhito Makino, Atsushi Fukushima | 2017-07-11 |
| 9632454 | Cartridge and image forming apparatus | — | 2017-04-25 |
| 9165750 | High purity copper—manganese alloy sputtering target | Tomio Otsuki, Takeo Okabe, Nobuhito Makino, Atsushi Fukushima | 2015-10-20 |
| 9090970 | High-purity copper-manganese-alloy sputtering target | Tomio Otsuki, Takeo Okabe, Nobuhito Makino, Atsushi Fukushima | 2015-07-28 |
| 8406640 | Toner cartridge and control method of displaying the residual toner quantity in the same toner cartridge | Toshiaki Fujisawa | 2013-03-26 |
| 8041239 | Image forming apparatus controlling the recycling of toner based on paper quality | — | 2011-10-18 |
| 7215620 | Information recording medium with management area having recording identification information | Kenichi Nishiuchi | 2007-05-08 |
| 6780553 | Electrophotographic photoreceptor and management system of the same | Hiroshi Sugimura, Masanori Matsumoto, Yoshimi Kojima | 2004-08-24 |
| 6314262 | Toner supply system and toner cartridge | Hisashi Kunihiro, Akira Nakakuma, Fumito Mizoguchi, Yoshiki Ichikawa | 2001-11-06 |
| 6311025 | Interchangeable part recognizing apparatus and image forming apparatus | Toshihide Morimoto, Hisashi Kunihiro, Hideaki Hagihara | 2001-10-30 |
| 6212338 | Image forming device with communication to supplementary toner container | Hideaki Hagihara, Haruo Nishiyama, David Isner | 2001-04-03 |
| 6153063 | Optical information recording medium, producing method thereof and method of recording/erasing/reproducing information | Noboru Yamada, Mayumi Otoba, Katsumi Kawahara | 2000-11-28 |
| 6146734 | Optical recording disk and method for manufacturing the same | Eiji Ohno, Yoshitaka Sakaue, Nobuo Akahira, Masahide Yokoyama, Hiroshi Hayata +1 more | 2000-11-14 |
| 6033535 | Optical information recording disk and method for manufacturing the same | Eiji Ohno, Yoshitaka Sakaue, Nobuo Akahira, Masahide Yokoyama, Hiroshi Hayata +1 more | 2000-03-07 |
| 5956308 | Data storage apparatus | Nobuo Akahira, Kenichi Nishiuchi, Eiji Ohno, Noboru Yamada | 1999-09-21 |
| 5811217 | Optical information recording medium and optical information recording/reproducing method | Nobuo Akahira, Eiji Ohno, Kenichi Nishiuchi, Noboru Yamada | 1998-09-22 |
| 5768233 | Data storage apparatus for recording and reproducing information on a recording medium by rotating the medium at different zone recording angular velocities and a reading angular velocity during a stand-by mode | Nobuo Akahira, Kenichi Nishiuchi, Eiji Ohno, Noboru Yamada | 1998-06-16 |
| 5750228 | Optical information storage medium | Yoshitaka Sakaue, Eiji Ohno, Kazuhisa Ide, Noboru Yamada | 1998-05-12 |
| 5729513 | Data storage apparatus for recording and reproducing information on a recording medium by rotating the recording medium at different angular velocities | Nobuo Akahira, Kenichi Nishiuchi, Eiji Ohno, Noboru Yamada | 1998-03-17 |
| 5635267 | Optical information recording medium of phase change type having variably grooved tracks depending on their radial locations | Noboru Yamada, Kenichi Nishiuchi, Shigeaki Furukawa, Nobuo Akahira, Eiji Ohno +1 more | 1997-06-03 |
| 5545454 | Optical information recording medium and method of designing its structure | Noboru Yamada, Nobuo Akahira, Kenichi Nishiuchi, Eiji Ohno, Shigeaki Furukawa | 1996-08-13 |