Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7888398 | Pigment | Naoki Hirata, Hisao Okamoto, Michiei Nakamura, Tetsuya Yanagimoto, Hiroaki Yamada +1 more | 2011-02-15 |
| 7361698 | Water-based pigment inks, image recording method, and image recording system | Michiei Nakamura, Naoyuki Sakai, Hiroyuki Shimanaka, Dai Watanabe, Kenji Ogawa +4 more | 2008-04-22 |
| 7135062 | Hydrophilic coloring matter for recording image, aqueous coloring agent for recording image, method and device for recording image | Michiei Nakamura, Hideyuki Koiso, Naoyuki Sakai, Atsushi Nogami, Hiroyuki Shimanaka +2 more | 2006-11-14 |
| 6821334 | Process for producing sulfonated solid particles | Michiel Nakamura, Hisao Okamoto, Atsushi Nogami, Naoyuki Sakai, Hideyuki Koiso | 2004-11-23 |
| 6726762 | Finely divided pigments and coloring compositions | Hisao Okamoto, Yutaka Nakagawa, Koji Tsuchiya, Shotoku Takami, Yoshio Abe +1 more | 2004-04-27 |
| 6623556 | Near-infrared transmitting black azo pigments | Hisao Okamoto, Hiromitsu Yanagimoto, Shirou Yamamiya, Yoshio Abe, Michiei Nakamura | 2003-09-23 |
| 6521038 | Near-infrared reflecting composite pigments | Hiromitsu Yanagimoto, Hisao Okamoto, Tohru Hosoda, Yoshio Abe, Michiei Nakamura | 2003-02-18 |
| 4869532 | Prints and production method thereof | Yoshio Abe, Shojiro Horiguchi, Shozo Ohira, Michiei Nakamura, Masaru Hasegawa +4 more | 1989-09-26 |