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:
Jul. 18, 1978
Filed:
Aug. 15, 1977
Daikichiro Nishikawa, Tokyo, JP;
Yukio Imada, Yokohama, JP;
Masayuki Kinoshita, Yokohama, JP;
Katsuhiko Takahashi, Kawasaki, JP;
Hajime Machida, Tokyo, JP;
Michitaro Nagasawa, Noda, JP;
Mitsubishi Chemical Industries Limited, Tokyo, JP;
Noda Institute for Scientific Research, Chiba, JP;
Abstract
The improvement in a process for the production of 17-hydroxyandrosta-1,4-dien-3-one and androsta-1,4-diene-3,17-dione by the microbiological oxidation of a sterol, its 4-en-3-one derivative or its 1,4-dien-3-one derivative, which comprises adding to the culture medium at least one glyceride-containing substance selected from the group consisting of glycerides, fats, oil seeds and oil fruits in an amount sufficient that the culture medium contains at least 0.3 percent by weight of glycerides.