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. 27, 2007
Filed:
Aug. 29, 2005
Yutaka Maruyama, Tokyo, JP;
Kiyoshi Nitto, Saitama, JP;
Takeshi Kumazawa, Handa, JP;
Naoki Soumiya, Handa, JP;
Yutaka Maruyama, Tokyo, JP;
Kiyoshi Nitto, Saitama, JP;
Takeshi Kumazawa, Handa, JP;
Naoki Soumiya, Handa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Mino Ceramic Co., Ltd., Nagoya, JP;
Abstract
A vibration type driving apparatus capable of inhibiting wear in an elastic member and a contact member is provided. The vibration type driving apparatus is a vibration type driving apparatus relatively driving an elastic member given vibrations by an electric-mechanical energy conversion element and a contact member contacting the elastic member, wherein at least one of the elastic member and the contact member is formed by aluminum oxide ceramics containing 5 wt % to 40 wt % of zirconium oxide.