Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7402368 | Hydrophobic inorganic fine particles, hydrophobic inorganic fine particles production process, and toner | Yoshihiro Ogawa, Takashige Kasuya | 2008-07-22 |
| 7241547 | Toner, method for forming image using the toner, and process cartridge | Tsuyoshi Takiguchi, Yosuke Morikawa, Takashige Kasuya, Kimihiro Yoshimura, Katsuhisa Yamazaki | 2007-07-10 |
| 7238387 | Hydrophobic inorganic fine particles, hydrophobic inorganic fine particles production process, and toner | Yoshihiro Ogawa, Takashige Kasuya | 2007-07-03 |
| 7150953 | Developer | Katsuhisa Yamazaki, Takashige Kasuya, Tsuyoshi Takiguchi | 2006-12-19 |
| 7141343 | Toner, method for forming image using the toner, and process cartridge | Tsuyoshi Takiguchi, Yosuke Morikawa, Takashige Kasuya, Kimihiro Yoshimura, Katsuhisa Yamazaki | 2006-11-28 |
| 6879793 | Method for forming image | Tatsuhiko Chiba, Michihisa Magome, Keiji Komoto, Takeshi Kaburagi | 2005-04-12 |
| 6810217 | Process cartridge | Hirohide Tanikawa, Tsutomu Onuma, Nobuyuki Okubo | 2004-10-26 |
| 6673506 | Toner production process | Tsuneo Nakanishi, Hirohide Tanikawa, Tsutomu Onuma, Nobuyuki Okubo | 2004-01-06 |
| 6630275 | Magnetic toner and process cartridge | Hirohide Tanikawa, Tsutomu Onuma, Nobuyuki Okubo, Tsuneo Nakanishi | 2003-10-07 |
| 6589701 | Dry toner, image forming method and process cartridge | Katsuhisa Yamazaki, Tsutomu Onuma, Nobuyuki Okubo, Tsuneo Nakanishi | 2003-07-08 |
| 6458499 | Toner having hydrocarbon wax with specific ester value and hydroxyl value | Tsutomu Onuma, Hirohide Tanikawa, Nobuyuki Okubo, Tsuneo Nakanishi, Katsuhisa Yamazaki | 2002-10-01 |
| 6426169 | Toner containing azo iron compound | Tsutomu Onuma, Hirohide Tanikawa, Nobuyuki Okubo, Yoshihiro Ogawa, Tsuneo Nakanishi +1 more | 2002-07-30 |