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:
Oct. 15, 2013
Filed:
Jun. 22, 2009
Applicants:
Tadashi Kawaguchi, Koga, JP;
Hidehiko Tsukada, Koga, JP;
Takashi Yamanaka, Koga, JP;
Inventors:
Assignee:
Aion Co., Ltd, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/304 (2006.01); B08B 1/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cleaning sponge rolleris made of a polyvinyl acetal porous material having elasticity in a wet state, and includes a roller bodyin an approximate cylinder form, and a plurality of protrusionsformed integrally on an outer peripheral surfaceof the roller body, and rotates the multiple protrusionsto make contact with a surface to be cleaned so as to clean the surface. Outer surfaces of the protrusionsrespectively have a top outer surface(interior exposed surface) making contact with the surface to be cleaned while cleaning in a state where internal structures of the protrusionsare exposed.