Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10457820 | Alcohol-based printing ink composition | Toru Oya, Yuki Sato, Yoshitaka Tone | 2019-10-29 |
| 9701855 | Printing ink varnish, and printing ink composition using same | Satotaro Tanaka, Nobutaka Takenaka, Yuika Hayasaka | 2017-07-11 |
| 9523009 | Alcohol-based printing ink composition | Toru Oya, Takefumi Nomura | 2016-12-20 |