Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8754264 | Production method of unsaturated (poly)alkylene glycol ether monomer and production method of (poly)alkylene glycol chain-containing polymer | Yuko Matsuda, Naohiko Itayama, Hideaki Nagano | 2014-06-17 |
| 8476341 | Multi-branched polyalkylene glycol polymer, method for producing the same, and admixture for cement | Noboru Sakamoto | 2013-07-02 |
| 8344085 | Polymer and cement admixture using the same | Noboru Sakamoto, Yuko Matsuda | 2013-01-01 |
| 8188167 | Polyalkylene glycol chain-containing thiol polymer, thiol-modified monomer, mixture thereof, and admixture for cement | Noboru Sakamoto | 2012-05-29 |
| 7851576 | Polymer and cement admixture using the same | Noboru Sakamoto, Yuko Matsuda | 2010-12-14 |
| 7662884 | Cement admixture and production method thereof | Hiromichi Tanaka, Noboru Sakamoto, Tomotaka Nishikawa, Hiroko Izukashi, Toru Uno +3 more | 2010-02-16 |
| 7405264 | Polycarboxylic acid copolymer, production method and use thereof | Tomotaka Nishikawa, Noboru Sakamoto, Tsuyoshi Hirata, Hiroko Izukashi, Tomiyasu Ueta +3 more | 2008-07-29 |
| 7321006 | Admixture for cement | Toshio Hayashiya, Tomiyasu Ueta, Tsuyoshi Hirata, Hiroshi Yamazaki | 2008-01-22 |
| 7247662 | Cement dispersant, its production process, and cement composition using the cement dispersant | Noboru Sakamoto, Tsuyoshi Hirata | 2007-07-24 |
| 7049462 | Production process for product of dehydration reaction and apparatus used for the production | Koichiro Nagare, Toru Uno, Yoshiyuki Onda, Masato Nishiue, Hisamoto Kawano | 2006-05-23 |
| 6946505 | Cement dispersant, its production process, and cement composition using the cement dispersant | Noboru Sakamoto, Tsuyoshi Hirata | 2005-09-20 |
| 6919388 | Cement admixture and cement composition | Tomotaka Nishikawa, Hirokatsu Kawakami, Daisuke Imai, Hiromichi Tanaka, Tsuyoshi Hirata | 2005-07-19 |
| 6900275 | (Meth) acrylic acid (salt) polymer and its production process | Takashi Tomita, Hirokatsu Kawakami | 2005-05-31 |
| 6864337 | Polycarboxylic acid copolymer, production method and use thereof | Tomotaka Nishikawa, Noboru Sakamoto, Tsuyoshi Hirata, Hiroko Izukashi, Tomiyasu Ueta +3 more | 2005-03-08 |
| 6844372 | Crosslinked anion-exchange resin or salt thereof and phosphorus adsorbent comprising the same | Takeshi Goto, Kazuhisa Yoshitake, Kazuteru Moriyama, Shuichi Toriya, Hideyuki Nishibayashi | 2005-01-18 |
| 6716896 | Method for production of esterified product and apparatus therefor | Tsuyoshi Hirata, Hiromichi Tanaka | 2004-04-06 |
| 6545083 | Cement additive | Tsuyoshi Hirata, Koichiro Nagare, Hirokatsu Kawakami | 2003-04-08 |
| 6486260 | Cement additive, cement composition and polycarboxylic acid polymer | Hirokatsu Kawakami, Tsuyoshi Hirata | 2002-11-26 |
| 6388038 | Method for producing polycarboxylic acid for cement dispersant and cement composition | Tsuyoshi Hirata, Katsuhisa Shiote, Koichiro Nagare, Syogo Iwai | 2002-05-14 |
| 6376581 | Cement dispersant, method for production thereof, and cement composition using the dispersant | Yoshio Tanaka, Akira Ohta, Tsuyoshi Hirata, Toru Uno, Hideyuki Tahara | 2002-04-23 |
| 6362364 | Method for production of esterified product and apparatus therefor | Tsuyoshi Hirata, Hiromichi Tanaka | 2002-03-26 |
| 6294015 | Cement admixture and cement composition | Akihiko Yamashita, Tsuyoshi Hirata, Hirokazu Niwa | 2001-09-25 |
| 6265495 | Method for production of esterified product | Tsuyoshi Hirata | 2001-07-24 |
| 6258162 | Cement composition | Hirokatsu Kawakami, Hirokazu Niwa, Hiromichi Tanaka, Tsuyoshi Hirata | 2001-07-10 |
| 6187841 | Cement composition using the dispersant of (meth)acrylic esters, (metha)acrylic acids polymers | Yoshio Tanaka, Akira Ohta, Tsuyoshi Hirata, Toru Uno, Hideyuki Tahara | 2001-02-13 |