Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6844372 | Crosslinked anion-exchange resin or salt thereof and phosphorus adsorbent comprising the same | Takeshi Goto, Kazuhisa Yoshitake, Kazuteru Moriyama, Shuichi Toriya, Tsutomu Yuasa | 2005-01-18 |
| 6498231 | Vinylpyrrolidone polymer and its stabilization and preservation processes | Daijo Tomihisa, Toshiaki Kuriyama, Tomiyasu Ueta, Akio Naka, Yoshitomo Nakata | 2002-12-24 |
| 6391994 | Production process for vinylpyrrolidone polymer | Daijo Tomihisa, Nobuyuki Harada, Akio Naka, Toshiaki Kuriyama, Yuuji Shimasaki | 2002-05-21 |
| 6346600 | Vinylpyrrolidone polymer and its stabilization and preservation processes | Daijo Tomihisa, Toshiaki Kuriyama, Tomiyasu Ueta, Akio Naka, Yoshitomo Nakata | 2002-02-12 |
| 6031132 | Amide-group-containing polyacetal and its production process and use | Takuya Saeki, Shigeru Yamaguchi, Satoru Miura | 2000-02-29 |
| 5952432 | Water-soluble polymer, manufacturing method thereof, and detergent composition containing the water-soluble polymer | Shigeru Yamaguchi, Yoshihiro Maeda | 1999-09-14 |
| 5856288 | Polyalkylene glycol-polyglyoxylate block copolymer, its production process and use | Takuya Saeki, Tsuyoshi Hirata, Shigeru Yamaguchi | 1999-01-05 |
| 5284909 | Amphoteric polyelectrolyte, method for production thereof, and organic sludge dehydrater | Kazutomo Takahashi, Koichi Yamamoto, Kazuo Kodama, Seiichi Suzuki, Takashi Tazaki +1 more | 1994-02-08 |
| 5194515 | Amphoteric polyelectrolite, method for production thereof, and organic sludge dehydrater | Kazutomo Takahashi, Koichi Yamamoto, Kazuo Kodama, Seiichi Suzuki, Takashi Tazaki +1 more | 1993-03-16 |
| 5185461 | Process for preparing 2-aminoethyl esters of methacrylic acid | Yasumasa Tanaka, Kouichi Tsuchitani, Hideyuki Tahara | 1993-02-09 |
| 4966712 | Flotation collector and method for treatment of inorganic substance-containing water system by use thereof | Yoshiaki Urano, Nobuhiro Matsuura, Yoshiyuki Hozumi, Fumio Watanabe | 1990-10-30 |
| 4782183 | Method for manufacture of amino-carboxylic acid salts | Takakiyo Goto, Hiromi Yokoyama | 1988-11-01 |
| 4709090 | Method of production of oxydicarboxylic acid salts | Shigeyoshi Iio, Fumio Watanabe, Takakiyo Goto | 1987-11-24 |