Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |