Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6103441 | Color toner for electrophotography | Masami Tomita, Yohichiroh Watanabe, Keiko Shiraishi | 2000-08-15 |
| 6074794 | Toner for dry developing | Kohki Katoh, Masami Tomita, Yasuo Asahina, Tomomi Suzuki | 2000-06-13 |
| 6014532 | Image forming apparatus | Ryuta Takeichi, Yukiko Iwasaki, Akiyo Nakajima, Hiroshi Nagame, Narihito Kojima | 2000-01-11 |
| 6004715 | Toner for developing electrostatic images | Masanori Suzuki, Hachiroh Tosaka, Mituo Aoki, Akihiro Kotsugai | 1999-12-21 |
| 5975446 | Pulverizing apparatus | Hiroshi Yaguchi, Masami Tomita, Yasuo Asahina, Satoru Miyamoto, Tomomi Suzuki | 1999-11-02 |
| 5851716 | Electrophotographic image forming method and toner composition used therefor | Shinichi Kuramoto, Masami Tomita | 1998-12-22 |
| 5648842 | Methods and systems for cleaning residual toner from image-developing device | Takeyoshi Sekine, Hiroshi Yamasita, Makoto Ohsaki, Kouta Fujimdri, Yasunori Kawaishi +1 more | 1997-07-15 |
| 5418103 | Toner for developing latent electrostatic images | Kenkichi Muto, Akihiro Kotsugai, Yoichiro Watanabe, Ian Harpur | 1995-05-23 |
| 5061588 | Dry type toner for electrophotography | Nobuhiro Nakayama, Yasuo Asahina, Mitsuo Aoki, Kayo Makita | 1991-10-29 |
| 4980258 | Dry type developer for electrophotography | Mitsuo Aoki, Nobuhiro Nakayama, Yasuo Asahina, Kayo Makita, Yasuaki Iwamoto | 1990-12-25 |
| 4945022 | Triboelectric charge application member for toner comprising copolymer of fluoro-olefin monomer and unsaturated silicon monomer | Nobuhiro Nakayama, Yasuo Asahina, Yasuaki Iwamoto | 1990-07-31 |
| 4933250 | Magenta color toner for developing latent electrostatic images in color electrophotography | Nobuhiro Nakayama, Yasuo Asahina, Mitsuo Aoki, Kayo Makita | 1990-06-12 |
| 4841331 | Triboelectric charge application member for toner | Nobuhiro Nakayama, Yasuo Asahina, Yasuaki Iwamoto | 1989-06-20 |
| 4762763 | Toner for developing electrostatic latent image | Yoshihiro Nomura, Noriaki Ide, Kazumi Ohtaki, Masami Tomita, Hachiro Tosaka +5 more | 1988-08-09 |