Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6355671 | SULFONATED DERIVATIVES OF CYCLIC PHENOL SULFIDES, PROCESS FOR THE PREPARATION THEREOF, SEPARATING AND RECOVERING AGENTS CONTAINING CYCLIC PHENOL SULFIDES, METHODS FOR SEPARATION AND RECOVERY THEREWITH, AND DRUG COMPOSITIONS CONTAINING THE SULFIDES | Nobuhiko Iki, Toyohisa Fujimoto, Fumio Hamada, Shingo Kato, Yoshiyuki Hiraishi +5 more | 2002-03-12 |
| 6040465 | Process for producing optically active .beta.-lactones | Tetsutaro Hattori, Osamu Uesugi, Yasufumi Tamai, Noboru Sayo | 2000-03-21 |
| 5998635 | Process for producing a .beta.-lactone derivative | Tetsutaro Hattori, Yutaka Suzuki, Shuichi Oi, Takashi Miura, Tsutomu Hashimoto | 1999-12-07 |
| 5998631 | Cyclic phenol sulfide having at least one sulfinyl or sulfonyl group and process for producing the same | Hitoshi Kumagai, Setsuko Miyanari | 1999-12-07 |
| 5881358 | Composition for extracting transition metal and method for extracting transition metal using the same | Nobuhiko Iki, Fumitaka Narumi, Naoya Morohashi, Hitoshi Kumagai | 1999-03-09 |
| 5849961 | Optically active 1,1'-biphenanthryl-2,2'-diol, process for preparing the same, and resolving reagent comprising the same | Kenta Sakurai, Nobuyuki Koike, Tetsutaro Hattori | 1998-12-15 |
| 5756760 | 1-substituted-2-diphenylphosphinonaphthalene and transition metal complex comprising the same as a ligand | Tetsutaro Hattori, Yasuko Komuro, Hidenori Kumobayashi | 1998-05-26 |
| 5051176 | Packing material for liquid chromatography | Shuichi Oi, Masayuki Shijo | 1991-09-24 |