Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6600070 | Methods for making 2-(&ohgr;-alkoxycarbonylalkanoyl)-4-butanolide, ester of &ohgr;-hydroxy-(&ohgr;-3)-ketoaliphatic acid, and derivatives thereof | Hideaki Takaoka, Sigeru Wada, Nobuhiko Ito, Shinzo Imamura, Hideo Muraoka | 2003-07-29 |
| 6586567 | Production process of polyphenylene ether | Yuji Takeda, Isamu Masumoto, Akira Mitsui | 2003-07-01 |
| 6528668 | Methods for making 2-(&ohgr;-alkoxycarbonylalkanoyl)-4-butanolide, ester of &ohgr;-hydroxy-(&ohgr;-3)-ketoaliphatic acid, and derivatives thereof | Hideaki Takaoka, Sigeru Wada, Nobuhiko Ito, Shinzo Imamura, Hideo Muraoka | 2003-03-04 |
| 6475133 | Methods for making 2-(&ohgr;-alkoxycarbonylalkanoyl)-4-butanolide, ester of omega-hydroxy-(&ohgr;-3)-ketoaliphatic acid, and derivatives thereof | Hideaki Takaoka, Sigeru Wada, Nobuhiko Ito, Shinzo Imamura, Hideo Muraoka | 2002-11-05 |
| 6291688 | Processes for preparing 2-(omega-alkoxycarbonylalkanoyl)-4- butanolides omega-hydroxy-(omega-3)-keto fatty esters, and derivatives thereof | Hideaki Takaoka, Sigeru Wada, Nobuhiko Ito, Shinzo Imamura, Hideo Muraoka | 2001-09-18 |
| 6087527 | Method for producing alkyl carboxylates by multi-stage esteridication interrupted with a dehydration step | Atsushi Niwa, Shinzo Imamura, Ito Nobuhiko | 2000-07-11 |
| 6057372 | Antibacterial agents and cosmetics and clothing containing the same | Akio Nobuhiro, Yutaka Kato | 2000-05-02 |
| 4246398 | Method for recovering polyphenylene oxides | Akitoshi Sugio, Atsuo Kuramoto, Takao Kawaki, Hiroyuki Urabe, Tatsuhiko Kurihara +1 more | 1981-01-20 |