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. 16, 2001
Filed:
Jul. 27, 1999
Applicant:
Inventors:
Hiroyuki Kobayashi, Fuji, JP;
Minoru Shimojo, Kawasaki, JP;
Akihiko Nakazawa, Shizuoka-ken, JP;
Akira Shimada, Shizuoka-ken, JP;
Atsushi Tanaka, Susono, JP;
Tsunenori Ashibe, Yokohama, JP;
Takashi Kusaba, Shizuoka-ken, JP;
Hidekazu Matsuda, Numazu, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 4/700 ; B29C 4/706 ; B29C 4/720 ;
U.S. Cl.
CPC ...
B29C 4/700 ; B29C 4/706 ; B29C 4/720 ;
Abstract
A process for producing an endless belt includes melt-extruding an extrusion material into a cylinder by means of an extruder, where the extrusion material has a tensile break strength of 400 kgf/cm,or above and a breaking extension of from 3.0% to 250%, and where the extrusion material is extruded in an extrusion ratio of from 1.05 to 2.80 while a gas is blown into the inside of the melt-extruded cylindrical product.