Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6175047 | Ruthenium metathesis catalyst and method for producing olefin reaction product by metathesis reaction using the same | Yukiharu Iwaya, Tsutomu Hashimoto, Toshimitsu Hagiwara | 2001-01-16 |
| 6121343 | Perfume-containing controlled release biodegradable resin composition | Hideyuki Hongo, Yasuo Fujiwara, Seiichi Abe, Minoru Hanada | 2000-09-19 |
| 6075154 | Method of preparation of 2,2'-bis(diarylphosphino)-6,6'-bis(trifluoromethyl)-1,1'-biphenyl, transition metal complex using it as ligand, and optically active 3-hydroxybutanoic acid ester derivative or .beta.-butyrolactone | Yoshiharu Gonda, Akio Yamaguchi, Toshimitsu Hagiwara | 2000-06-13 |
| 6043380 | Ruthenium-I0D0-optically active phosphine complex | Yoshiki Okeda, Tsutomu Hashimoto, Toshimitsu Hagiwara | 2000-03-28 |
| 5981782 | Ruthenium-optically active phosphine complex, process for the preparation thereof and process for the preparation of optically active 4-methyl-2-oxetanone using same | Yoshiki Okeda, Toshimitsu Hagiwara | 1999-11-09 |
| 5981771 | Ruthenium-optically active phosphine complex, process for the preparation thereof and process for the preparation of optically active 4-methyl-2-oxetanone using same | Yoshiki Okeda, Toshimitsu Hagiwara | 1999-11-09 |
| 5840811 | Optically active block polyester copolymer and method for production thereof | Tohru Kobayashi, Hideyuki Hongo, Akio Yamaguchi, Yoko Takahashi, Takashi Imai +1 more | 1998-11-24 |
| 5824751 | Biodegradable high molecular composition | Yoko Takahashi, Hideyuki Hongo, Akio Yamaguchi, Toshimitsu Hagiwara | 1998-10-20 |
| 5631344 | Block copolymer of polyesters and polycarbonates and process for preparation thereof | Hideyuki Hongo, Akio Yamaguchi, Toshimitsu Hagiwara, Yoko Takahashi | 1997-05-20 |
| 5516883 | Biodegradable optically active copolymer and process for producing the same | Akio Yamaguchi | 1996-05-14 |
| 5461139 | Biodegradable optically active copolymers and processes for producing the same | Yoshiharu Gonda, Akio Yamaguchi, Takao Nishishita | 1995-10-24 |
| 5430125 | Process for producing poly(3-hydroxybutyric acid) | Takao Nishishita, Akio Yamaguchi | 1995-07-04 |
| 5352763 | Biodegradable optically active polymers and intermediate oligomers thereof, and process for producing them | Akio Yamaguchi, Takashi Imai, Motoki Suzuki, Susumu Akutagawa | 1994-10-04 |
| 5312939 | 2,2'-bis (dicyclopentylphosphino)-1,1'-binaphthyl and transition metal complex using the same as ligand | Hidenori Kumobayashi | 1994-05-17 |
| 5264547 | Optically active ether lactone, optically active polymer thereof, and process for producing the polymer | Akio Yamaguchi, Susumu Akutagawa | 1993-11-23 |
| 5223632 | 2,2'-bis(di-(3,5-dialkylphenyl)phosphino)-1,1'-binaphthyl and transition metal complex containing the samd ligand | Takerou Ishizaki, Hidenori Kumobayashi | 1993-06-29 |
| 5221755 | Optically active ether lactone, optically active polymer thereof, and process for producing the polymer | Akio Yamaguchi, Susumu Akutagawa | 1993-06-22 |