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:
Mar. 13, 2012
Filed:
Sep. 06, 2007
Applicants:
Tomoyuki Obara, Sodegaura, JP;
Yukio Ishii, Sodegaura, JP;
Tatsuji Kawamura, Sodegaura, JP;
Inventors:
Assignee:
Prime Polymer Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 45/37 (2006.01);
U.S. Cl.
CPC ...
Abstract
An injection-molding die including: a fixed die; a movable die; a cavity defined by the fixed die and the movable die; and a gate for injecting a melt resin into the cavity. The cavity includes: a flow-dividing structure that divides a flow of the melt resin injected into the cavity into a plurality of resin flows; and a flow-advancing area in which the resin flows generated by the flow-dividing structure are merged together. The flow-advancing area is formed thicker than a flow-hesitating area of the flow-advancing area in the cavity.