Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6545112 | Process for producing &bgr;-butyrolactone homopolymer or copolymer | Yoji Hori, Toshimitsu Hagiwara | 2003-04-08 |
| 6365755 | Ammonium 3,5,6-trihydroxyhexanoate derivatives and preparation process thereof | Kenzo Sumi, Toshiyuki Murayama, Hideki Nara, Takashi Moroi | 2002-04-02 |
| 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 | Yoji Hori, Akio Yamaguchi, Toshimitsu Hagiwara | 2000-06-13 |
| 5461139 | Biodegradable optically active copolymers and processes for producing the same | Yoji Hori, Akio Yamaguchi, Takao Nishishita | 1995-10-24 |
| 5412109 | Process for preparing optically active 4-methyl-2-oxetanone | Hidemasa Takaya, Tetsuo Ohta, Hidenori Kumobayashi, Yoshiki Okeda | 1995-05-02 |