Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6492532 | Method for producing carbonyl compound by dehydrogenating alcohol | Masaru Utsunomiya, Yoko Seto, Souichi Orita, Souichi Amano | 2002-12-10 |
| 6429316 | Process for preparing pyrrolidone derivative | Yoko Seto, Masaru Utsunomiya, Souichi Orita, Kazutaka Maruyama, Tomonori Okubi | 2002-08-06 |
| 5580991 | Process for preparing butyrolactone and method for separating organic phosphorous-ruthenium complex as catalyst and reusing the same | Hitoshi Sugiyama, Haruhiko Kusaka | 1996-12-03 |
| 5399203 | Method for cleaning oil-deposited material | Makoto Ishikawa, Tetsuhiro Yamauchi, Soichi Orita, Tetsuo Asanuma, Noboru Ueki +2 more | 1995-03-21 |
| 5047561 | Process for producing a lactone | Chihiro Miyazawa, Hiroshi Kameo, Shinji Isogai, Masayuki Otake | 1991-09-10 |