Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7687566 | Propylene resin composition and molding thereof | Akihiro Matsuki, Shinichi Kanamaru, Yutaka Fukuyama, Eihachi Takamura, Koichi Nakayama | 2010-03-30 |
| 7485280 | Carbon black | Akihiro Matsuki, Shinichi Kanamaru, Yutaka Fukuyama, Eihachi Takamura | 2009-02-03 |
| 6358487 | Carbon black and process for producing the same | Yoshihiro Omae, Yutaka Fukuyama, Yuuichi Sekine, Takaharu Yamamoto, Hiroaki Takehara +5 more | 2002-03-19 |
| 6123759 | Carbon black, process for producing the same, and aqueous dispersion and water-base ink both containing the same | Masahiro Yamada, Takashi Hirasa | 2000-09-26 |
| 5772975 | Carbon black | Yutaka Fukuyama, Mamoru Nakayama, Shigeru Kawakami | 1998-06-30 |
| 5547498 | Easily dispersible coloring carbon black and process for preparing an ink | Akinori Sakaue, Makoto Ishizu | 1996-08-20 |
| 5542969 | Recording liquid | Takashi Hirasa, Hiroshi Takimoto | 1996-08-06 |