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. 26, 2009
Filed:
Jul. 16, 2004
Takashi Noda, Yokohama, JP;
Junya Hoshi, Yokohama, JP;
Takeshi Yanobe, Yokohama, JP;
Shinobu Hasegawa, Yokohama, JP;
Takashi Noda, Yokohama, JP;
Junya Hoshi, Yokohama, JP;
Takeshi Yanobe, Yokohama, JP;
Shinobu Hasegawa, Yokohama, JP;
Synztec Co., Ltd., Tokyo, JP;
Abstract
A method of manufacturing a two-layer roll having a foamed elastic layer provided on a core, and an elastic layer provided on the foamed elastic layer includes the steps of forming the elastic layer by use of a cylindrical mold holding a first cylindrical member used to form the outer cylindrical surface of the elastic layer, the first cylindrical member being manufactured by means of machining a solid member; forming a solid primary layer on the core by means of side extrusion; setting the formed elastic layer and the core having the solid primary layer formed thereon in a second cylindrical member of a foaming mold; and foaming the solid primary layer into the foamed elastic layer to form the two-layer roll having the formed elastic layer and the elastic layer.