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:
Dec. 06, 2011
Filed:
Oct. 18, 2010
Applicant:
Kiyoshi Tsuchida, Yonezawa, JP;
Inventor:
Kiyoshi Tsuchida, Yonezawa, JP;
Assignees:
Renesas Electronics Corporation, Kanagawa, JP;
Hitachi Yonezawa Electronics Co., Ltd., Yamagata, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 45/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cleaning sheet () is formed with a trough-hole () at a portion corresponding to a cavity of a mold along with a slit () or a flow cavity cut () at every corner at an outer periphery of the through-hole () and is placed between a first mold half and a second mold half of the mold to clean the inside of the mold, thereby improving the cleaning effect of the mold.