Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 6605664 | Pigment dispersions, and writing instruments and printers with the dispersions stored therein | Yoshifumi Sugito, Hiroaki Saikatsu | 2003-08-12 |
| 6258503 | Production process of colored fine particulate composition and colored fine particulate composition produced by the process | Michiei Nakamura, Hiroyuki Shimanaka, Masayuki Takahashi, Yukio Kanbara, Masayuki Kinnou +2 more | 2001-07-10 |
| 5913972 | Aqueous pigment dispersion, water-soluble resin, production process of the resin, and equipment suitable for use with the dispersion | Jiro Amano, Naoyuki Sakai | 1999-06-22 |
| 4869532 | Prints and production method thereof | Yoshio Abe, Shojiro Horiguchi, Shozo Ohira, Michiei Nakamura, Masaru Hasegawa +4 more | 1989-09-26 |
| 4713411 | Pigment composition and preparation process thereof | Takamitu Shinoda, Yukio Kanbara | 1987-12-15 |