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:
Aug. 19, 1986
Filed:
Dec. 07, 1984
Applicant:
Inventors:
Hideo Torii, Higashiosaka, JP;
Masaki Aoki, Minou, JP;
Hideyuki Okinaka, Toyonaka, JP;
Satoru Yuhaku, Osaka, JP;
Shoji Nakamura, Hirakata, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ; B26B / ;
U.S. Cl.
CPC ...
6537413 ; 6537415 ; 249134 ;
Abstract
A mold used for manufacturing optical glass parts by the direct press molding of lumps of raw optical glass. The pressing surface of the mold is made of a material comprising .alpha. type SiC or amorphous SiC or a mixture of both. The pressing surface may be a coated film on a base body of hard alloy or high density carbon.