Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5831127 | Bisaminothiophenol compound | Satoru Saito, Haruyoshi Tatsu, Valerii Romanovich Polishchuk, deceased | 1998-11-03 |
| 5763699 | Process for preparing 2,2-diphenylhexafluoropropanes | Valerii Romanovich Polishchuk, deceased, Riichi Iwa, Haruyoshi Tatsu | 1998-06-09 |
| 5688872 | Bisaminothiophenol compound, process for producing the same and curing agent for fluorine-containing elastomer comprising the same | Takehiro Sonoi, Haruyoshi Tatsu, Valerii Romanovich Polishchuk, deceased | 1997-11-18 |
| 5672758 | Bisaminothiophenol compound, process for producing the same and curing agent for fluorine-containing elastomer comprising the same | Takehiro Sonoi, Haruyoshi Tatsu, Valerii Romanovich Polishchuk, deceased | 1997-09-30 |
| 5605973 | Bisamidrazone compound and vulcanizing agent for fluorine-containing elastomer comprising the same | Yuichi Yamamoto, Satoru Saito, Haruyoshi Tatsu, Ziefman Y. Vilovich, Postovoi S. Anatol'evich +1 more | 1997-02-25 |
| 5589559 | Fluoroelastomer and process for producing the same | Satoru Saito, Haruyoshi Tatsu | 1996-12-31 |