Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9079931 | Ruthenium complex and method for preparing optically active alcohol compound | Hideki Nara | 2015-07-14 |
| 8222433 | Axially asymmetric phosphorus compound and production method thereof | Ken Tanaka, Tomohiko Hakamata | 2012-07-17 |
| 8188307 | Method for producing an optically active tetrahydroquinoline | Takashi Moroi, Tsukasa Sotoguchi, Kazuhiko Matsumura, Motonobu Takenaka, Wataru Kuriyama +3 more | 2012-05-29 |
| 8076503 | Process for production of optically active aminophosphinylbutanoic acids | Nobuto Minowa, Nozomu Nakanishi, Masaaki Mitomi, Hideki Nara | 2011-12-13 |
| 7601842 | Method for producing an optically active tetrahydroquinoline | Takashi Moroi, Tsukasa Sotoguchi, Kazuhiko Matsumura, Motonobu Takenaka, Wataru Kuriyama +3 more | 2009-10-13 |
| 7312347 | Substituted optically active disphosphine compound | Takahiro Fujiwara | 2007-12-25 |
| 6984738 | Process for production of optically active amino alcohols | Kenji Yagi, Takao Saito | 2006-01-10 |
| 6794328 | Diphosphine compound, production intermediate thereof, transition metal complex containing the compound as ligand and asymmetric hydrogenation catalyst containing the complex | Takao Saito | 2004-09-21 |
| 6492545 | Process for producing optically active alcohol | Takao Saito, Kazuhiko Matsumura, Noboru Sayo | 2002-12-10 |
| 6472539 | Production process of diphosphine oxide and diphosphonate | Takao Saito, Noboru Sayo, Takero Ishizaki | 2002-10-29 |
| 6333291 | Optically active diphosphine compound, production intermediate thereof, transition metal complex containing the compound as ligand and asymmetric hydrogenation catalyst containing the complex | Noboru Sayo, Takao Saito, Takero Ishizaki | 2001-12-25 |
| 6313317 | Ruthenium-phosphine complex and method for producing the same | Noboru Sayo, Takao Saito | 2001-11-06 |
| 5872273 | Chiral diphosphine compound intermediate for preparing the same transition metal complex having the same diphosphine compound as ligand and asymmetric hydrogenation catalyst | Takao Saito, Xiaoyaong Zhang, Noburo Sayo | 1999-02-16 |
| 5847222 | Optically active diphosphine compound, method for making the compound, transition metal complex having the compound as ligand and method for making optically active substance by use of the complex | Noboru Sayo, Kazuhiko Matsumura, Hidenori Kumobayashi | 1998-12-08 |
| 5808162 | Chiral unsymmetric diphosphine compound and transition metal complex containing the same as ligand | Noboru Sayo, Xiaoyong Zhang, Tatsuya Omoto, Tetsuro Yamasaki, Hidenori Kumobayashi | 1998-09-15 |
| 5693868 | Method for producing optically active diphosphine compounds | Noboru Sayo, Xiaoyong Zhang, Tatsuya Ohmoto, Akifumi Yoshida | 1997-12-02 |