Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9347617 | Residual radioactive sludge liquid suction apparatus | Osamu Ogata | 2016-05-24 |
| 9117557 | Radioactive sludge transfer apparatus | Osamu Ogata | 2015-08-25 |
| 9099210 | Radioactive sludge transfer apparatus | Osamu Ogata | 2015-08-04 |
| 6715858 | Image-forming device | Katsutoshi Ogawa, Akira Kumon, Akira Fukano | 2004-04-06 |
| 6418296 | Color image forming apparatus | Noboru Katakabe, Masanori Yoshikawa, Kenji Asakura | 2002-07-09 |
| 6409314 | Image forming device and image forming method | Yoshitaka Kitaoka, Akira Kumon, Katsutoshi Ogawa, Akira Fukano, Hiroyuki Matsuo | 2002-06-25 |
| 6394587 | Image forming device | Yoshitaka Kitaoka, Akira Kumon, Akira Fukano | 2002-05-28 |
| 6366756 | Color image forming apparatus | Noboru Katakabe, Masanori Yoshikawa, Kenji Asakura | 2002-04-02 |
| 6286936 | Image forming apparatus and image forming method | Akira Kumon, Yoshitaka Kitaoka, Katsutoshi Ogawa, Hiroyuki Matsuo, Akira Fukano +1 more | 2001-09-11 |
| 6185396 | Color image forming apparatus | Noboru Katakabe, Masanori Yoshikawa, Kenji Asakura | 2001-02-06 |
| 6144394 | Image forming method and device | Katsutoshi Ogawa, Yoshitaka Kitaoka, Akira Kumon, Hiroyuki Matsuo, Akira Fukano +1 more | 2000-11-07 |
| 5809380 | Color image forming apparatus with plural color units | Noboru Katakabe, Masanori Yoshikawa, Kenji Asakura | 1998-09-15 |
| 5550619 | Electrophotographic apparatus of improved low image density | Hiroshi Komakine, Hiroshi Terada, Hajime Yamamoto, Kazumasa Hayashi | 1996-08-27 |
| 5457517 | Image forming apparatus having a plurality of support surfaces | Noboru Katakabe, Shunji Onobori, Teruyuki Naka | 1995-10-10 |
| 5434651 | Image forming apparatus and a charging device | Noboru Katakabe | 1995-07-18 |
| 5381214 | Electrophotographic charging device | Akira Kumon, Katsutoshi Ogawa, Masaichiro Tatekawa, Hitoshi Hisada, Junichi Nawama +1 more | 1995-01-10 |
| 4346878 | Sheet feeding apparatus | — | 1982-08-31 |