Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7297229 | Paper bulking promoter | Yasushi Ikeda, Yoichi Ishibashi, Hiromichi Takahashi | 2007-11-20 |
| 7122098 | Paper quality improver for papermaking and method for producing pulp sheet | Yasushi Ikeda, Toshiyuki Nishimori, Hiromichi Takahashi | 2006-10-17 |
| 6599392 | Paper bulking promoter | Yasushi Ikeda, Takayuki Ikenaga, Atsuhito Mori, Yoichi Ishibashi, Yasuo Ishii +2 more | 2003-07-29 |
| 6576085 | Paper bulking promoter | Yasushi Ikeda, Yoichi Ishibashi, Hiromichi Takahashi | 2003-06-10 |
| 6565708 | Paper quality improver composition for papermaking | Yasushi Ikeda, Hiromichi Takahashi | 2003-05-20 |
| 6346169 | Paper bulking promoter | Yasushi Ikeda, Yoichi Ishibashi, Hiromichi Takahashi | 2002-02-12 |
| 5674316 | Hydraulic composition | Tatsuo Izumi, Hotaka Yamamuro, Shin Murahara | 1997-10-07 |