Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5190815 | Waterproofing tape comprising ethylenic sulfonate polymers | Tadao Shimomura, Kazuhiro Okamura, Yoshinori Sano | 1993-03-02 |
| 5137945 | Cement with sulfoalkyacrylate polymers | Tsuneo Tsubakimoto, Hideyuki Tahara, Tsuyoshi Hirata, Hiroshi Ito | 1992-08-11 |
| 4872885 | Dispersant for aqueous slurry of carbonaceous solid and aqueous carbonaceous solid slurry composition incorporating said dispersant therein | Tsuneo Tsubakimoto, Hayami Ito, Shuhei Tatsumi, Yoshihiro Kajibata, Shoichi Takao +4 more | 1989-10-10 |
| 4870120 | Cement dispersant | Tsuneo Tsubakimoto, Hideyuki Tahara, Tsuyoshi Hirata, Hiroshi Ito | 1989-09-26 |
| 4337154 | Crosslinked composite semipermeable membrane | Shuzo Fukuchi, Tetsuzo Hayashi, Ryoichi Oshiumi | 1982-06-29 |