Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6726762 | Finely divided pigments and coloring compositions | Hisao Okamoto, Yoshiyuki Zama, Koji Tsuchiya, Shotoku Takami, Yoshio Abe +1 more | 2004-04-27 |
| 6468341 | Pigment compositions, production process thereof, colorants, and colored articles | Nobuto Wada, Kazutaka Aoki, Shotoku Takami, Michiei Nakamura | 2002-10-22 |
| 4956364 | Nootropic agent | Kiyoshi Kimura, Yojiro Ukai, Takashi Ogasawara | 1990-09-11 |
| 4500362 | Process for preparing aqueous dispersion of pigment | Osamu Takahashi, Nobuo Yamamura, Yasuo Mukunoki, Shungi Ogawa | 1985-02-19 |