Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10201886 | Polishing pad and method for manufacturing the same | Michito Sato, Junichi Ueno, Kaoru Ishii, Hiroshi Yoshida, Masataka Takagi | 2019-02-12 |
| 8532522 | Toner cartridge | Masashi Hasegawa | 2013-09-10 |
| 8233818 | Inner cap for toner container and toner container | Tomoe Sasaki, Masashi Hasegawa, Tetsuya Kusano, Nobuhiro Makita, Makoto Kawaguchi +1 more | 2012-07-31 |
| 7505718 | Container, toner container, image forming apparatus, and image forming process | Fumio Ogata, Masato Suzuki, Masahiro Nakayama | 2009-03-17 |
| 7313349 | Toner container and image forming apparatus | Masato Suzuki, Masahiro Nakayama | 2007-12-25 |
| 7149462 | Container, toner container, image forming apparatus, and image forming process | Fumio Ogata, Masato Suzuki, Masahiro Nakayama | 2006-12-12 |
| D532037 | Toner cartridge | Kiyonori Tsuda | 2006-11-14 |
| D531662 | Toner cartridge | Kiyonori Tsuda | 2006-11-07 |
| 6336020 | Image forming apparatus having an improved developer-supplying mechanism and method thereof | Tomoji Ishikawa, Kazuyuki Sugihara, Yoshiyuki Kimura, Kenji Maeda, Fumio Ogata | 2002-01-01 |
| 6298208 | Toner container for an image forming apparatus | Fumio Ogata | 2001-10-02 |
| 6104900 | Image forming apparatus having an improved developer-supplying mechanism and method thereof | Tomoji Ishikawa, Kazuyuki Sugihara, Yoshiyuki Kimura, Kenji Maeda, Fumio Ogata | 2000-08-15 |
| 6088561 | Toner cartridge, image formation apparatus comprising toner cartridge, and method of recycling the toner cartridge | Hideo Ichikawa, Shigemi Kanda | 2000-07-11 |
| 5508185 | Lipase immobilized on a chitosan carrier | Hiroaki Tanibe, Shigeyuki Imamura, Junko Harada | 1996-04-16 |
| 4833237 | Process for producing granular porous chitosan | Hiroaki Tanibe, Itsuo Kurahashi, Hiroshi Seo, Saburo Nakajima | 1989-05-23 |