Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7662884 | Cement admixture and production method thereof | Tsutomu Yuasa, Hiromichi Tanaka, Noboru Sakamoto, Tomotaka Nishikawa, Hiroko Izukashi +3 more | 2010-02-16 |
| 7405264 | Polycarboxylic acid copolymer, production method and use thereof | Tsutomu Yuasa, Tomotaka Nishikawa, Noboru Sakamoto, Tsuyoshi Hirata, Hiroko Izukashi +3 more | 2008-07-29 |
| 7402644 | Production processes for alkylene oxide addition product and its derivatives | Toru Inaoka, Hiromichi Tanaka, Tsuyoshi Hirata | 2008-07-22 |
| 7304104 | Cement admixture, cement composition and method for laying work the same, and method for producing cement hardened product | Akihiko Yamashita, Hiromichi Tanaka, Toru Uno, Tsuyoshi Hirata | 2007-12-04 |
| 7253220 | Cement admixture and cement composition | Akihiko Yamashita, Hiromichi Tanaka, Toru Uno, Tsuyoshi Hirata | 2007-08-07 |
| 7125944 | Cement admixture and cement composition | Akihiko Yamashita, Hiromichi Tanaka, Tsuyoshi Hirata, Toru Uno | 2006-10-24 |
| 7049462 | Production process for product of dehydration reaction and apparatus used for the production | Koichiro Nagare, Toru Uno, Tsutomu Yuasa, Masato Nishiue, Hisamoto Kawano | 2006-05-23 |
| 6911494 | Cement admixture and cement composition | Akihiko Yamashita, Hiromichi Tanaka, Tsuyoshi Hirata, Toru Uno | 2005-06-28 |
| 6864337 | Polycarboxylic acid copolymer, production method and use thereof | Tsutomu Yuasa, Tomotaka Nishikawa, Noboru Sakamoto, Tsuyoshi Hirata, Hiroko Izukashi +3 more | 2005-03-08 |
| 6825289 | Method for producing chemical reactive substance and polycarboxylic acid produced thereby | Masaya Yamamoto, Toru Uno, Koichiro Nagare, Minoru Miyagawa | 2004-11-30 |
| 6762325 | Method for production of alkoxylated compound | Toru Inaoka, Yasuhiko Sato, Hiromichi Tanaka, Tsuyoshi Hirata | 2004-07-13 |
| 6727315 | Copolymer for cement admixtures and its production process and use | Masaya Yamamoto, Toru Uno, Hiromichi Tanaka, Akihiko Yamashita, Tsuyoshi Hirata +1 more | 2004-04-27 |
| 6569234 | Cement dispersant and cement composition comprising this | Akihiko Yamashita, Hiromichi Tanaka, Masaya Yamamoto, Toru Uno, Tsuyoshi Hirata | 2003-05-27 |
| 6451961 | Ethylenimine polymer, aqueous solution of ethylenimine polymer, production process for the same and purifying process therefor | Seiichi Suzuki, Isao Satoh | 2002-09-17 |
| 6444769 | Production process for ethylenimine polymer aqueous solution | Seiichi Suzuki, Isao Satoh | 2002-09-03 |
| 6417408 | Production process for (poly)alkylene glycol monoalkyl ether | Masaru Kirishiki, Hideaki Tsuneki, Yukio Kadono | 2002-07-09 |
| 6346509 | Higher secondary alcohol alkoxylate compound composition, method for production thereof, and detergent and emulsifier using the composition | Yukio Kadono, Kunihiko Kimata, Kenji Rakutani | 2002-02-12 |
| 6278007 | (Poly)alkylene glycol higher alkyl ether derivative composition and detergent, lubricant, and dermatologic medicine for external use containing the composition | Toru Inaoka, Kenji Rakutani, Yukio Kadono | 2001-08-21 |
| 6255275 | Higher secondary alcohol alkoxylate compound composition, method for production thereof, and detergent and emulsifier using the composition | Yukio Kadono, Kunihiko Kimata, Kenji Rakutani | 2001-07-03 |
| 6057470 | Reaction distillation apparatus and reaction distillation method | Hideaki Tsuneki, Atusi Moriya, Hiroshi Yoshida, Hiroki Wakayama, Kenichi Watanabe | 2000-05-02 |
| 6017875 | Higher secondary alcohol alkoxylate compound composition, method for production thereof, and detergent and emulsifier using the composition | Yukio Kadono, Kunihiko Kimata, Kenji Rakutani | 2000-01-25 |
| 5994595 | Production process for (poly)alkylene glycol monoalkyl ether | Masaru Kirishiki, Hideaki Tsuneki, Yukio Kadono | 1999-11-30 |
| 5874605 | Process for preparing aromatic carbonic ester | Hiroshi Yoshida, Hideaki Tsuneki, Atusi Moriya, Hiroki Wakayama, Kenichi Watanabe | 1999-02-23 |
| 5741948 | Process for production of (poly) alkylene glycol monoalkyl ether | Masaru Kirishiki, Yukio Kadono, Isamu Maeda, Yasuhiko Satoh, Fumiaki Morishita +1 more | 1998-04-21 |
| 5688843 | Oil-absorbent composition, particulate oil absorber, oil-absorbent material, and oil-absorbent pack | Toru Inaoka, Tomoki Gomi, Toshio Tamura, Hideyuki Tahara | 1997-11-18 |