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. 27, 2003
Filed:
Jan. 25, 2001
Masami Moriya, Kawasaki, JP;
Takashi Matsubara, Yokosuka, JP;
Nikon Corporation, Tokyo, JP;
Abstract
In a driving mechanism of an optical device that communicates the motive power generated at a drive source to an object to be driven by employing a plurality of gears, the plurality of gears are each constituted by using, at least, one of; polyester, polyamide and polyacetals. The plurality of gears include a gear having a low bending elastic modulus set to 10 kgf/mm or higher and 100 kgf/mm or lower and a gear having a high bending elastic modulus set to 50 kgf/mm or higher and 1000 kgf/mm or lower that meshes with the gear having the low bending elastic modulus, and thus, it becomes possible to reduce the noise generated at the gear meshing portion without compromising the durability of the gears.