Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7745089 | Process for producing toner, and toner | Nobuyuki Okubo, Shuhei Moribe, Shinichiro Abe, Koji Nishikawa | 2010-06-29 |
| 7457572 | Image forming method and process cartridge using specific toner regulating blade and toner | Yoshihiro Ogawa, Yusuke Hasegawa, Koji Nishikawa, Tomohisa Sano, Junko Nishiyama +2 more | 2008-11-25 |
| 7351509 | Toner | Shuhei Moribe, Nobuyuki Okubo, Shinichiro Abe, Koji Nishikawa | 2008-04-01 |
| 7306889 | Process for producing toner, and toner | Nobuyuki Okubo, Shuhei Moribe, Shinichiro Abe, Koji Nishikawa | 2007-12-11 |
| 7288354 | Toner | Shuhei Moribe, Nobuyuki Okubo, Hideto Iida, Koji Nishikawa, Takashige Kasuya | 2007-10-30 |
| 7273686 | Toner | Nobuyuki Okubo, Hideto Iida, Takashige Kasuya, Koji Nishikawa, Shuhei Moribe | 2007-09-25 |
| 6810217 | Process cartridge | Kaori Hiratsuka, Hirohide Tanikawa, Nobuyuki Okubo | 2004-10-26 |
| 6673506 | Toner production process | Tsuneo Nakanishi, Hirohide Tanikawa, Nobuyuki Okubo, Kaori Hiratsuka | 2004-01-06 |
| 6630275 | Magnetic toner and process cartridge | Kaori Hiratsuka, Hirohide Tanikawa, Nobuyuki Okubo, Tsuneo Nakanishi | 2003-10-07 |
| 6589701 | Dry toner, image forming method and process cartridge | Katsuhisa Yamazaki, Nobuyuki Okubo, Tsuneo Nakanishi, Kaori Hiratsuka | 2003-07-08 |
| 6541174 | Method using toner and developer for developing electrostatic image | Hirohide Tanikawa, Toshiaki Nakahara, Keita Nozawa, Kazuyoshi Hagiwara, Minoru Shimojo +2 more | 2003-04-01 |
| 6537716 | Toner for developing electrostatic images and heat fixing method | Shinji Doi, Hirohide Tanikawa, Hiroaki Kawakami, Masatsugu Fujiwara | 2003-03-25 |
| 6458499 | Toner having hydrocarbon wax with specific ester value and hydroxyl value | Hirohide Tanikawa, Nobuyuki Okubo, Tsuneo Nakanishi, Katsuhisa Yamazaki, Kaori Hiratsuka | 2002-10-01 |
| 6426169 | Toner containing azo iron compound | Hirohide Tanikawa, Nobuyuki Okubo, Yoshihiro Ogawa, Tsuneo Nakanishi, Katsuhisa Yamazaki +1 more | 2002-07-30 |
| 6187496 | Toner and developer for developing electrostatic image, process for production thereof and image forming method | Hirohide Tanikawa, Toshiaki Nakahara, Keita Nozawa, Kazuyoshi Hagiwara, Minoru Shimojo +2 more | 2001-02-13 |
| 6120961 | Toner for developing electrostatic images | Hirohide Tanikawa, Masami Fujimoto, Hiroyuki Fujikawa | 2000-09-19 |
| 6077638 | Toner and developer for developing electrostatic image, process for production thereof and image forming method | Hirohide Tanikawa, Toshiaki Nakahara, Keita Nozawa, Kazuyoshi Hagiwara, Minoru Shimojo +2 more | 2000-06-20 |
| 6020102 | Positive-chargeable toner, image forming method and apparatus unit | Masami Fujimoto, Hirohide Tanikawa, Hiroyuki Fujikawa | 2000-02-01 |
| 6007957 | Magnetic toner, image forming method and process cartridge | Takakuni Kobori, Nobuyuki Okubo, Masaichiro Katada, Masao Takano | 1999-12-28 |
| 5977515 | Underwater laser processing device including chamber with partitioning wall | Keiichi Uraki, Toshitaka Satsuta, Akira Onuma, Mitsuo Nakamura, Toshimi Matsumoto +4 more | 1999-11-02 |
| 5968701 | Toner and image forming method | Hirohide Tanikawa, Masami Fujimoto, Hiroyuki Fujikawa | 1999-10-19 |
| 5938954 | Submerged laser beam irradiation equipment | Toshimi Matsumoto, Akira Onuma, Mitsuo Nakamura, Choichi Asano, Yasumasa Tamai +4 more | 1999-08-17 |
| 5879132 | Stainless steel type 13Cr5Ni having high toughness, and usage of the same | Kenichi Usami, Hiroshi Takayasu, Makoto Kanda, Masao Kawakami, Fumio Sakamoto +2 more | 1999-03-09 |
| 5654992 | Method of repairing structural materials of nuclear reactor internals and apparatus therefor | Keiichi Uraki, Hisanori Okamura, Toshimi Matsumoto, Toshitaka Satsuta, Mitsuo Nakamura +4 more | 1997-08-05 |
| 5628449 | Method of welding a carbon steel and an austenitic stainless steel together and resultant structure | Toshimi Matsumoto, Masami Yada, Koji Goto, Osamu Matsushima, Hideo Suzuki +2 more | 1997-05-13 |