The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 2010
Filed:
Dec. 17, 2004
Applicants:
Shigeyoshi Nishino, Ube, JP;
Kenji Hirotsu, Ube, JP;
Hidetaka Shima, Ube, JP;
Shinobu Suzuki, Ube, JP;
Inventors:
Shigeyoshi Nishino, Ube, JP;
Kenji Hirotsu, Ube, JP;
Hidetaka Shima, Ube, JP;
Shinobu Suzuki, Ube, JP;
Assignee:
UBE Industries, Ltd., Ube-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 309/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for preparing tetrahydropyran-4-one represented by the formula (1): which comprises reacting at least one kind of dihydropyran-4-one and pyran-4-one represented by the formula (2):