Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE47657 | Toner bottle having rib | Noriyuki Umezawa, Takayuki Nishi, Shinichi Itoh | 2019-10-22 |
| RE46689 | Toner bottle having rib | Noriyuki Umezawa, Takayuki Nishi, Shinichi Itoh | 2018-01-30 |
| RE45513 | Toner bottle having rib away from discharge port | Noriyuki Umezawa, Takayuki Nishi, Shinichi Itoh | 2015-05-12 |
| RE42312 | TONER BOTTLE HAVING RIB BEING SENSED FOR BEING DISCRIMINATED, METHOD AND APPARATUS FOR DISCRIMINATING TONER BOTTLE TYPES ACCORDING TO A SENSED OBJECT ON THE TONER BOTTLE, STIRRING TONER, AND DETECTING THE AMOUNT OF REMAINING TONER | Noriyuki Umezawa, Takayuki Nishi, Shinichi Itoh | 2011-04-26 |
| RE41779 | Toner bottle and developer cartridge for use in an image forming apparatus | Tokihiko Ise, Shinichi Itoh | 2010-09-28 |
| 7427060 | Sheet conveying device, image forming apparatus and method for conveying sheet | — | 2008-09-23 |
| RE40058 | TONER BOTTLE CAPABLE OF BEING DISCRIMINATED, METHOD AND APPARATUS FOR DISCRIMINATING TONER BOTTLE TYPES ACCORDING TO A SENSED OBJECT ON THE TONER BOTTLE STIRRING TONER, AND DETECTING THE AMOUNT OF REMAINING TONER | Noriyuki Umezawa, Takayuki Nishi, Shinichi Itoh | 2008-02-12 |
| RE40021 | Toner bottle and developer cartridge for use in an image forming apparatus | Tokihiko Ise, Shinichi Itoh | 2008-01-22 |
| 6932337 | Sheet conveying device, image forming apparatus and method for conveying sheet | — | 2005-08-23 |
| 6587648 | Developer supply device | — | 2003-07-01 |
| 6308017 | Image forming system including oscillating type waste toner container | Noriyuki Umezawa, Shinichi Itoh | 2001-10-23 |
| 6308036 | Image forming system with waste toner container and restraint member | Shinichi Itoh | 2001-10-23 |
| 6290221 | Sheet stacking/conveying unit and image forming apparatus using sheet stacking/conveying unit | — | 2001-09-18 |
| D447167 | Toner storage container for a copying machine | — | 2001-08-28 |
| 6259877 | Toner cartridge and toner supply device | Shinichi Itoh | 2001-07-10 |
| 6256469 | Toner supply apparatus in image forming system | Noriyuki Umezawa, Shinichi Itoh | 2001-07-03 |
| 6256470 | Toner supply device for use in image forming system and toner cartridge for use therein | Shinichi Ito | 2001-07-03 |
| 6240262 | Toner supply device and toner cartridge | Tomoyuki Asada, Shinichi Itoh | 2001-05-29 |
| 5130756 | Unit for conveying developer | — | 1992-07-14 |
| 4951936 | Separation unit | — | 1990-08-28 |
| 4591261 | Image forming apparatus with variable rotational speed of developers | Ryoji Saruwatari | 1986-05-27 |