Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8715898 | Electrostatic charge image developer, process cartridge, image forming apparatus, and image forming method | — | 2014-05-06 |
| 8652733 | Electrostatic image developing toner, electrostatic image developer, image forming method, toner cartridge, process cartridge, and image forming apparatus | Sumiaki Yamasaki, Susumu Yoshino, Satoshi Hiraoka, Shigeru Seitoku, Hirofumi Shiozaki | 2014-02-18 |
| 8580474 | Electrostatic image developing carrier, electrostatic image developer, image-forming method, developer cartridge, process cartridge, and image forming apparatus | Susumu Yoshino, Sumiaki Yamasaki, Satoshi Hiraoka, Shigeru Seitoku, Hirofumi Shiozaki | 2013-11-12 |
| 8507168 | Electrostatic image-developing toner, electrostatic image developer, toner cartridge, process cartridge, and image forming apparatus | Satoshi Hiraoka, Sumiaki Yamasaki, Susumu Yoshino, Shigeru Seitoku, Hirofumi Shiozaki | 2013-08-13 |
| 8372574 | Method of producing electrostatic latent image developing toner | Hideo Maehata, Yukihiro Ishii, Masaaki Suwabe, Tsutomu Kubo, Makiko Nakano +1 more | 2013-02-12 |
| 8097390 | Electrophotographic toner, invisible electrophotographic toner, electrophotographic developer, toner cartridge, process cartridge, and image formation apparatus | — | 2012-01-17 |
| 7288351 | Magenta toner for developing electrostatic images, process for production thereof, developer and image-forming method | Hidekazu Yaguchi, Yasuo Matsumura, Manabu Serizawa, Tsutomu Kubo, Shigeru Seitoku | 2007-10-30 |
| 7166401 | Toner for electrophotography, image-forming method, image-forming apparatus and toner cartridge | Hiroyuki Tanaka, Shuji Sato, Yosuke Tsurumi, Manabu Serizawa, Tsutomu Kubo +1 more | 2007-01-23 |
| 7094514 | Image forming method | Manabu Serizawa, Hidekazu Yaguchi, Tsutomu Kubo, Shigeru Seitoku, Yasuo Matsumura +2 more | 2006-08-22 |
| 7094508 | Electrophotographic toner, electrophotographic developer and image formation method using the same | Masahiro Takagi | 2006-08-22 |
| 7074540 | Image forming apparatus | Katsumi Nukada, Kazuhiro Koseki, Wataru Yamada, Takayuki Yamashita, Masahiro Iwasaki +4 more | 2006-07-11 |
| 7070899 | Electrostatic latent image developer, image forming method, and image forming apparatus | Nobumasa Furuya, Takashi Yukutake | 2006-07-04 |
| 7033719 | Toner having specific relation between absorption spectra, and developer, image forming method and image forming apparatus using same | Manabu Serizawa, Hidekazu Yaguchi, Takahisa Fujii, Emi Takahashi, Yasuo Matsumura | 2006-04-25 |
| 7018764 | Toner for developing electrostatic images, process for preparing toner for developing electrostatic images, developer for developing electrostatic images and images forming method | Yasuo Matsumura, Manabu Serizawa, Hidekazu Yaguchi, Takahisa Fujii, Tsutomu Kubo +1 more | 2006-03-28 |
| 7001701 | Color toner, electrostatic latent image developer, image forming method, and image producing device | Takahisa Fujii, Yasuo Matsumura, Manabu Serizawa, Hidekazu Yaguchi, Masaki Nakamura +1 more | 2006-02-21 |
| 6942953 | Image forming method | Manabu Serizawa, Hidekazu Yaguchi, Tsutomu Kubo, Hiroyuki Tanaka, Shigeru Seitoku +2 more | 2005-09-13 |
| 6893788 | Electrophotographic toner, electrophotographic developer and image formation method using the same | Masahiro Takagi | 2005-05-17 |
| 6846603 | Color toner, electrostatic latent image developer, image forming method, and image producing device | Takahisa Fujii, Yasuo Matsumura, Manabu Serizawa, Hidekazu Yaguchi, Masaki Nakamura +1 more | 2005-01-25 |
| 6416919 | Carrier, developer, and image-forming method | Suk Kim, Shigeru Inaba, Taku Fukuhara, Yasuhiro Oda | 2002-07-09 |
| 6391506 | Carrier, developer, and image-forming method | Suk Kim, Shigeru Inaba, Taku Fukuhara, Yasuhiro Oda | 2002-05-21 |
| 6124066 | Carrier for electrophotography, an electrostatic latent image developer and an image forming method | Suk Kim, Yasuo Yamamoto | 2000-09-26 |
| 5932387 | Charged member for electrostatic development and sleeve for electrostatic development | Yasuo Yamamoto, Takeshi Agata, Masato Mikami, Suk Kim | 1999-08-03 |
| 5783345 | Image forming method | Susumu Yoshino, Suk Kim, Takashi Imai, Koichi Takashima | 1998-07-21 |
| 5672455 | Carrier for electrostatic latent-image developer, electrostatic latent-image developer and image forming process | Susumu Yoshino, Takashi Imai, Koichi Takahashi, Suk Kim | 1997-09-30 |
| 5576806 | Charging roll for electrophotography | Kozo Oka, Taketoshi Hoshizaki, Kazuhiro Koseki | 1996-11-19 |