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:
Nov. 20, 2001
Filed:
Jun. 28, 1999
Applicant:
Inventors:
Yukio Yoshida, Sodegaura, JP;
Toshiyuki Tsubouchi, Sodegaura, JP;
Motohisa Ido, Sodegaura, JP;
Hitoshi Hata, Ichihara, JP;
Assignee:
Idemitsu Kosan Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
C10M / ;
Abstract
Derivatives of bicyclo[2.2.1]heptane in the invention have a high traction coefficient under high temperature and an excellent viscosity characteristic under low temperature and are useful for the fluid for a traction drive, and a method in the invention produces such derivatives economically and efficiently.