Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9152554 | Non-volatile memory system with compression and encryption of data | — | 2015-10-06 |
| 7662884 | Cement admixture and production method thereof | Tsutomu Yuasa, Hiromichi Tanaka, Noboru Sakamoto, Tomotaka Nishikawa, Hiroko Izukashi +3 more | 2010-02-16 |
| 7638563 | Polycarboxylic acid concrete admixture | Tomotaka Nishikawa, Hirokazu Yamamoto, Yukiko Nishikawa, Hiromichi Tanaka, Tomiyasu Ueta | 2009-12-29 |
| 7405264 | Polycarboxylic acid copolymer, production method and use thereof | Tsutomu Yuasa, Tomotaka Nishikawa, Noboru Sakamoto, Tsuyoshi Hirata, Hiroko Izukashi +3 more | 2008-07-29 |
| 7304104 | Cement admixture, cement composition and method for laying work the same, and method for producing cement hardened product | Akihiko Yamashita, Hiromichi Tanaka, Yoshiyuki Onda, Tsuyoshi Hirata | 2007-12-04 |
| 7253220 | Cement admixture and cement composition | Akihiko Yamashita, Hiromichi Tanaka, Yoshiyuki Onda, Tsuyoshi Hirata | 2007-08-07 |
| 7125944 | Cement admixture and cement composition | Akihiko Yamashita, Hiromichi Tanaka, Tsuyoshi Hirata, Yoshiyuki Onda | 2006-10-24 |
| 7049462 | Production process for product of dehydration reaction and apparatus used for the production | Koichiro Nagare, Yoshiyuki Onda, Tsutomu Yuasa, Masato Nishiue, Hisamoto Kawano | 2006-05-23 |
| 6911494 | Cement admixture and cement composition | Akihiko Yamashita, Hiromichi Tanaka, Tsuyoshi Hirata, Yoshiyuki Onda | 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, Yoshiyuki Onda, Koichiro Nagare, Minoru Miyagawa | 2004-11-30 |
| 6727315 | Copolymer for cement admixtures and its production process and use | Masaya Yamamoto, Yoshiyuki Onda, 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, Yoshiyuki Onda, Tsuyoshi Hirata | 2003-05-27 |
| 6376581 | Cement dispersant, method for production thereof, and cement composition using the dispersant | Yoshio Tanaka, Akira Ohta, Tsuyoshi Hirata, Tsutomu Yuasa, Hideyuki Tahara | 2002-04-23 |
| 6187841 | Cement composition using the dispersant of (meth)acrylic esters, (metha)acrylic acids polymers | Yoshio Tanaka, Akira Ohta, Tsuyoshi Hirata, Tsutomu Yuasa, Hideyuki Tahara | 2001-02-13 |
| 5925184 | Cement composition | Tsuyoshi Hirata, Tsutomu Yuasa, Koichiro Nagare, Hideyuki Tahara, Shogo Iwai | 1999-07-20 |
| 5641847 | Oil-absorbent polymer and use therefor | Yoshiyuki Hozumi, Toru Inaoka, Tomoki Gomi, Takakiyo Goto, Kenji Rakutani | 1997-06-24 |
| 5374600 | Oil-absorbent polymer and use therefor | Yoshiyuki Hozumi, Toru Inaoka, Tomoki Gomi, Takakiyo Goto, Kenji Rakutani | 1994-12-20 |
| 5061778 | Resin composition for composite-type vibration-damping material, composite-type vibration-damping material using the resin composition and process for production of the vibration-damping material | Yasunobu Uchida, Tomoshige Ono, Tadahiro Wakui, Yoshihiro Matsumoto, Masatoshi Shinozaki +2 more | 1991-10-29 |
| 4843221 | Electronic card receiving device | Tomonari Ohtsuki, Yoshiaki Igarashi, Yoshiaki Tanaka | 1989-06-27 |