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:
May. 04, 2010
Filed:
Oct. 09, 2003
Kengo Akimoto, Osaka, JP;
Kenichi Higashiyama, Kobe, JP;
Hiroshi Kawashima, Takatsuki, JP;
Motoo Sumida, Uji, JP;
Kengo Akimoto, Osaka, JP;
Kenichi Higashiyama, Kobe, JP;
Hiroshi Kawashima, Takatsuki, JP;
Motoo Sumida, Uji, JP;
Nippon Suisan Kaisha, Ltd., Chiyoda-ku, Tokyo, JP;
Abstract
A process for producing a crude oil having lowered unsaponifiable matter content and/or ester-type sterol content and comprising a highly unsaturated fatty acid as a constituent fatty acid, characterized in that a microorganism capable of producing a fat or oil comprising an unsaturated fatty acid as a constituent fatty acid is cultured in a medium containing a nitrogen source concentration of 2 to 15% within a culture tank equipped with an agitation impeller satisfying the requirement that the ratio of the diameter of agitation impeller (=d) to the inner diameter of the culture tank (=D) is d/D=0.30 to 0.6.