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:
Dec. 29, 1998
Filed:
Jun. 03, 1997
Tadakatsu Mandai, Kurashiki-shi, Okayama-ken, 712, JP;
Hiroshi Okumoto, Kurashiki, JP;
Koji Hara, Yokohama, JP;
Katsuhiko Mikuni, Yokohama, JP;
Kozo Hara, Yokohama, JP;
Hiroki Hamada, Okayama, JP;
Ensuiko Sugar Refining Co., Ltd., Yokohama, JP;
Other;
Abstract
A sugar derivative wherein a hydroxy-carboxylic acid is combined to a position 1 of a sugar via ether linkage, and other hydroxyl groups are protected with a protective groups. A method of producing the sugar derivative, comprises allowing glycolic ester to react with a compound so as to combine said glycolic ester at the position 1 of the sugar skeleton, and then saponifying, said compound has on the position 1 any of hydroxyl group, halogen atom and sulfur atom with a substitutent group, and has other hydroxyl groups being protected with a protective groups.