Issued Patents All Time
Showing 25 most recent of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6627374 | Process and system for producing toner particles | Hidekazu Fumita, Hiroshi Koyama, Minoru Omura | 2003-09-30 |
| 6495303 | Process of producing polymerized toner | Takeshi Naka, Hiroshi Koyama, Yoshinori Tsuji | 2002-12-17 |
| 6309788 | Process for producing toner | Yoshinori Tsuji, Atsushi Kubo, Minoru Ohmura, Takeshi Tsujino | 2001-10-30 |
| 6207339 | Process for producing toner | Masayoshi Kato, Tatsuya Nakamura | 2001-03-27 |
| 5931306 | Gas current classifier and process for producing toner | Satoshi Mitsumura, Masayoshi Kato, Yoko Goka, Yoshinori Tsuji | 1999-08-03 |
| 5916726 | Process for producing toner for developing electrostatic images | Kuniaki Kamiichi | 1999-06-29 |
| 5856056 | Process for producing toner | Kazuhiko Omata, Yasuhide Goseki, Satoshi Mitsumura | 1999-01-05 |
| 5839670 | Pneumatic impact pulverizer, fine powder production apparatus, and toner production process | Kazuhiko Omata, Momosuke Takaichi, Satoshi Mitsumura, Kazuyuki Miyano | 1998-11-24 |
| 5712075 | Gas current classifier and process for producing toner | Satoshi Mitsumura, Masayoshi Kato, Yoko Goka, Yoshinori Tsuji | 1998-01-27 |
| 5577670 | Pneumatic impact pulverizer system | Kazuhiko Omata, Momosuke Takaichi, Satoshi Mitsumura, Kazuyuki Miyano | 1996-11-26 |
| 5447275 | Toner production process | Yoko Goka, Satoshi Mitsumura, Kazuyuki Miyano | 1995-09-05 |
| 5435496 | Collision-type gas current pulverizer and method for pulverizing powders | Masayoshi Kato, Satoshi Mitsumura, Yusuke Yamada, Yasuhide Goseki | 1995-07-25 |
| 5358183 | Pneumatic pulverizer and process for producing toner | Satoshi Mitsumura, Kazuhiko Omata | 1994-10-25 |
| 5316222 | Collision type gas current pulverizer and method for pulverizing powders | Masayoshi Kato, Satoshi Mitsumura, Yusuke Yamada, Yasuhide Goseki | 1994-05-31 |
| 5215854 | Process for producing microcapsule toner | Masuo Yamazaki, Atsuko Kobayashi, Yusuke Karami, Yasuhide Goseki, Yasutaka Akashi | 1993-06-01 |
| 5178460 | Device for continuously mixing powder and process for producing toner for developing electrostatic image | Atsuko Kobayashi | 1993-01-12 |
| 5165549 | Gas current classifying separator | Toshiaki Sasaki, Masayoshi Kato, Satoshi Mitsumura | 1992-11-24 |
| 5111998 | Process for producing toner for developing electrostatic image and apparatus system therefor | Yusuke Yamada, Masayoshi Kato, Yasuhide Goseki, Satoshi Mitsumura | 1992-05-12 |
| 5087546 | Device for continuously mixing powder and process for producing toner for developing electrostatic image | Atsuko Kobayashi | 1992-02-11 |
| 5083713 | Process for disintegrating silica fine powder | Tsuko Kobayashi | 1992-01-28 |
| 5016823 | Air current classifier, process for preparing toner, and apparatus for preparing toner | Masayoshi Kato | 1991-05-21 |
| 4900647 | Process for producing electrophotographic toner comprising micropulverization, classification and smoothing | Norio Hikake, Yoshihiko Hyosu | 1990-02-13 |
| 4844349 | Process for producing toner for developing electrostatic images and apparatus therefor | Masayoshi Kato | 1989-07-04 |
| 4816366 | Process for producing toner through suspension polymerization | Yoshihiko Hyosu, Takeshi Ikeda, Hiromi Mori, Hiroaki Kawakami, Kuniko Kobayashi | 1989-03-28 |
| 4802977 | Process for size separating toner particles | Masayoshi Kato | 1989-02-07 |