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:
Aug. 27, 2013
Filed:
May. 02, 2011
Kouei Fujiki, Saitama, JP;
Ryota Sasaki, Saitama, JP;
Kouei Fujiki, Saitama, JP;
Ryota Sasaki, Saitama, JP;
Fujifilm Corporation, Tokyo, JP;
Abstract
Provided are a lens barrel part and a method of producing the same, such that the generation of grinding debris due to friction with lenses is suppressed while maintaining the air permeability of porous ceramics. Those areas of a lens barrel partwhich are in contact with the lenses are ground in the water by a polishing tool, with the result that in those regions of surfaces in contact with the lenses where fine projections exist, protection film portionsconsisting of hydrates or oxides are created due to the generation of tribochemical reactions, and that in those regions of surfaces in contact with the lenses which are other than the regions where fine projections are present, there exist porous portionswhere no tribochemical reaction occurs and where a porous state remains.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile