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. 23, 2006
Filed:
Aug. 11, 2003
Haruhisa Shibata, Okazaki, JP;
Kazuo Kato, Nagoya, JP;
Junichi Ohguchi, Toyoake, JP;
Yasuo Tabuchi, Toyoake, JP;
Makoto Ito, Okazaki, JP;
Toshio Shimomura, Nukata-gun, JP;
Haruhisa Shibata, Okazaki, JP;
Kazuo Kato, Nagoya, JP;
Junichi Ohguchi, Toyoake, JP;
Yasuo Tabuchi, Toyoake, JP;
Makoto Ito, Okazaki, JP;
Toshio Shimomura, Nukata-gun, JP;
Denso Corporation, Kariya, JP;
Abstract
A power transmission device for transmitting torque of a driving unit to a driven unit includes a first rotator, a second rotator, and a torque transmission member. The first rotator is to be driven for rotation by the driving unit. The second rotator is coupled to the driven unit. The torque transmission member is made of an elastically deformable material for making contact with the first rotator and the second rotator to transmit torque from the first rotator to the second rotator. An outer periphery of the torque transmission member includes a contact surface for making contact with the rotators and a non-contact surface out of contact with the rotators. The non-contact surface is provided with an oxygen permeance suppression layer made of a material having an oxygen permeability that is less than that of the contact surface.