Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9604918 | Carboxylic acid ester/carbamate compound with polymerizable functional group and fluorine atom group, and manufacturing method therefor | Takuhiro Miyamura, Keisuke Kokinn | 2017-03-28 |
| 8853462 | Method for producing hexafluoroacetone or hydrate thereof | Yuta Ogawa, Yusuke Takahashi, Akira Endo | 2014-10-07 |
| 8513459 | Process for producing perfluoropolyether carboxylic acid fluoride | — | 2013-08-20 |
| 7737299 | Process for producing 2,2,3,3,-tetrafluorooxetane | Takehiro Sonoi | 2010-06-15 |
| 7135592 | Process for producing polyfluoroalkyl ester of unsaturated carboxylic acid | Katsuyuki Sato, Keisuke Kokin, Kimihiko Urata | 2006-11-14 |
| 6901230 | Toner container having lid including lug | Hideo Ichikawa, Takeshi Saito, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki +1 more | 2005-05-31 |
| 6751431 | Developer replenishing device and developer container for use therewith | Hideo Ichikawa, Takeshi Saito, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki +1 more | 2004-06-15 |
| 6418293 | Developer replenishing device and developer container for use therewith | Hideo Ichikawa, Takeshi Saito, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki +1 more | 2002-07-09 |
| 6407282 | Process for producing monoester from dicarboxylic acid fluoride | Hiroaki Murata, Satoru Saito | 2002-06-18 |
| RE37542 | Toner cartridge for a developing device included in an image forming apparatus | Hideo Ichikawa, Seiji Terazawa | 2002-02-05 |
| 6289195 | Developer replenishing device and developer container for use therewith | Hideo Ichikawa, Takeshi Saito, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki +1 more | 2001-09-11 |
| 6075963 | Developer replenishing device and developer container for use therewith | Hideo Ichikawa, Takeshi Saito, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki +1 more | 2000-06-13 |
| 5918090 | Developer replenishing device and developer container for use therewith | Hideo Ichikawa, Takeshi Saito, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki +1 more | 1999-06-29 |
| 5822663 | Developer replenishing device and developer container for use therewith | Hideo Ichikawa, Takeshi Saito, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki +1 more | 1998-10-13 |
| 5740507 | Densely packed toner container and method of producing the same | Hideo Ichikawa, Nobuhiro Makita, Michiharu Narushima, Seiji Terazawa, Masakazu Nakada +1 more | 1998-04-14 |
| 5727607 | Powder feeding method and apparatus for feeding powders with a fluid with increased precision | Hideo Ichikawa, Michiharu Narushima, Nobuhiro Makita | 1998-03-17 |
| 5711353 | Powder filling method and powder filling device | Hideo Ichikawa, Michiharu Narushima, Nobuhiro Makita | 1998-01-27 |
| 5655195 | Toner cartridge for a developing device included in an image forming apparatus | Hideo Ichikawa, Seiji Terazawa | 1997-08-05 |
| 5627631 | Developer replenishing device and developer container for use therewith | Hideo Ichikawa, Takeshi Saito, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki +1 more | 1997-05-06 |
| 5500719 | Developer replenishing device and developer container for use therewith | Hideo Ichikawa, Takeshi Saito, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki +1 more | 1996-03-19 |
| 5455662 | Developer replenishing device and developer container for use therewith | Hideo Ichikawa, Takeshi Saito, Nobuhiro Makita, Seiji Ozawa, Shigeru Yoshiki +1 more | 1995-10-03 |
| 4921236 | Recycling automatic document feeder | Sirou Saeki, Hirohisa Otsuka, Nobuyuki Yanagawa | 1990-05-01 |
| 4912501 | Automatic original circulating and feeding apparatus | Shiro Saeki | 1990-03-27 |
| 4903085 | Automatic original circulating and feeding apparatus | Shiro Saeki | 1990-02-20 |
| 4860057 | Automatic original circulating and feeding apparatus | Shiro Saeki | 1989-08-22 |