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:
Mar. 12, 2013
Filed:
Oct. 30, 2006
Applicants:
Shoji Aoyama, Chiba, JP;
Keizo Murata, Osaka, JP;
Hiroshi Nagakawa, Chiba, JP;
Tahei Okada, Chiba, JP;
Inventors:
Shoji Aoyama, Chiba, JP;
Keizo Murata, Osaka, JP;
Hiroshi Nagakawa, Chiba, JP;
Tahei Okada, Chiba, JP;
Assignee:
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C10M 105/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a pressure-medium oil comprising at least one of a hydrocarbon compound and an ether compound and having the following properties (1) to (4):