Issued Patents All Time
Showing 25 most recent of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8192840 | Spring with high durability and method of coating the same | Yasuhiko Kunita, Takayuki Sakakibara, Masami Wakita, Yuichi Kondo | 2012-06-05 |
| 7883804 | Fuel cell cartridge, fuel cell system, electrical apparatus and method for recovering water generated in fuel cell system | Fumio Takei | 2011-02-08 |
| 7776440 | Spring coated with powder coating of epoxy resin and thermoplastic resin | Yasuhiko Kunita, Takayuki Sakakibara, Masami Wakita, Yuichi Kondo | 2010-08-17 |
| 7597980 | Sulfonic acid group-containing, proton-conducting polymer composition, a solid electrolyte membrane and a solid polymer fuel cell | Nawalage Cooray, Fumio Takei, Masao Tomoi | 2009-10-06 |
| 7276617 | Organometallic complex, luminescent solid, organic EL element and organic EL display | Wataru Sotoyama, Tasuku Satoh, Hiroyuki Sato, Azuma Matsuura | 2007-10-02 |
| 7083867 | Peropyrene compound, organic electroluminescent element and organic electroluminescent display | Wataru Sotoyama, Tasuku Sato, Hiroyuki Sato, Azuma Matsuura, Toshiaki Narusawa | 2006-08-01 |
| 6967070 | Electrophotographic toner and image forming method | Yasushige Nakamura, Toru Takahashi, Tsuneo Watanuki, Seijiro Ishimaru, Yasuyuki Furuse | 2005-11-22 |
| 6661563 | Sheet-shaped display, sphere-like resin body, and micro-capsule | Naoyuki Hayashi, Fumio Takei, Satoshi Takezawa, Makoto Fukuda, Mitsuo Ozaki +1 more | 2003-12-09 |
| 6210849 | Color toner, and image forming apparatus and toner cartridge using said toner | Makoto Fukuda | 2001-04-03 |
| 6025103 | Highly pure material for electrophotographic printing, and method of manufacturing such highly pure material | Yasushige Nakamura | 2000-02-15 |
| 5879846 | Image forming process and apparatus | Tsuneo Watanuki, Satoshi Takezawa, Makoto Fukuda, Toru Takahashi | 1999-03-09 |
| 5763540 | Epoxy resin composition for encapsulating semiconductor | Yoshihiro Nakata, Yukio Takigawa, Shigeaki Yagi | 1998-06-09 |
| 5698320 | Image forming device | Katsuji Ebisu, Toshiaki Narusawa, Takahiro Kashikawa, Tomoaki Tanaka | 1997-12-16 |
| 5659004 | Epoxy resin composition | Yukio Takigawa, Yoshihiro Nakata, Shigeaki Yagi, Nobuo Kamehara | 1997-08-19 |
| 5635323 | Image forming method | Yasushige Nakamura, Tsuneo Watanuki, Fumio Takei, Toru Takahashi, Yasuyuki Furuse | 1997-06-03 |
| 5618648 | Toner binder, toner, electrophotographic method and apparatus therefor | Yuzo Horikoshi, Takeshi Ogino, Hiroaki Naito, Makoto Koshi, Kazuhiko Kido +6 more | 1997-04-08 |
| 5616440 | Photosensitive member, electrophotographic apparatus using the photosensitive member, and process for producing the photosensitive member | Toru Takahashi, Tsuneo Watanuki, Fumio Takei, Yasushige Nakamura | 1997-04-01 |
| 5589313 | Method for nonmagnetic monocomponent development | Satoshi Takezawa, Yoshimichi Katagiri, Yasushige Nakamura | 1996-12-31 |
| 5587774 | Cleanerless electrographic imaging device | Akira Nagahara, Sachio Sasaki, Mitsuhito Furukawa, Tsuneo Watanuki, Mikio Amaya +1 more | 1996-12-24 |
| 5534978 | Imaging apparatus and photoconductor | Yasushige Nakamura, Fumio Takei, Toru Takahashi, Katsura Sakamoto, Tsuneo Watanuki | 1996-07-09 |
| 5518851 | Toner | Yoshimichi Katagiri, Yuzo Horikoshi | 1996-05-21 |
| 5467176 | Image forming method and apparatus with magnetic brush | Tsuneo Watanuki, Yasushige Nakamura, Satoshi Takezawa, Akira Nagahara, Sachio Sasaki +5 more | 1995-11-14 |
| 5393631 | Toner carriers for electrophotographic printers | Yuzo Horikoshi, Yasuo Yamagishi | 1995-02-28 |
| 5389485 | Toner | Yoshimichi Katagiri, Yuzo Horikoshi | 1995-02-14 |
| 4948427 | Process for preparing ink for ink jet printer | Yasuo Yamagishi, Toshiaki Narusawa, Katsuji Ebisu | 1990-08-14 |