Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9034435 | Coated printing papers and processes for preparing them | Kazuhiko Ishizuka, Ryo Sotooka, Susumu Kato | 2015-05-19 |
| 8377259 | Processes for preparing coated printing papers using hardwood mechanical pulps | Koji Kutsuwa, Kazuhiko Ishizuka, Takehiro Yoshimatsu | 2013-02-19 |
| 5972167 | Transfer roll coating color and a coated paper | Hideki Hayasaka, Katsuhiko Matsunaga, Hideki Fujiwara | 1999-10-26 |