Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7951886 | Continuous production method of water-soluble polymer and water-soluble polymer | Hidekazu Kozuki, Noboru Sakamoto, Takahiro Tsumori, Atsuro Yoneda, Hideo Wakami | 2011-05-31 |
| 7447653 | Electronic commerce system and computer-readable storage medium thereof | Mitsuyoshi Watanabe, Nobuya Fujisawa, Orio Ritani, Kensuke Shimizu | 2008-11-04 |
| 6624326 | Method for preparing heteropolyacid catalyst and method for producing methacrylic acid | Hiroto Kasuga, Eiichi Shiraishi | 2003-09-23 |
| 6458740 | Method for preparing heteropolyacid catalyst and method for producing methacrylic acid | Hiroto Kasuga, Eiichi Shiraishi | 2002-10-01 |