Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5310865 | Polyhydroxycarboxylic acid and preparation process thereof | Masanobu Ajioka, Akihiro Yamaguchi | 1994-05-10 |
| 5296162 | Near infrared absorbers and display/recording materials using the same | Hisao Itoh, Takahisa Oguchi, Tutomu Nishizawa | 1994-03-22 |