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:
Nov. 01, 1988
Filed:
Sep. 25, 1987
Applicant:
Inventors:
Shigeyoshi Kobayashi, Kawasaki, JP;
Tsuneo Manabe, Yokohama, JP;
Masazumi Shigematsu, Yokohama, JP;
Yasuko Osaki, Kawasaki, JP;
Shoji Watanabe, Tokyo, JP;
Tohoru Sema, Yokohama, JP;
Assignees:
Asahi Glass Company Ltd., Tokyo, JP;
Lion Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03B / ; C03C / ;
U.S. Cl.
CPC ...
65 33 ; 65 66 ; 6537413 ; 249134 ; 501 10 ;
Abstract
A mold capable of imparting uniform transparency to the calcium phosphate type crystallized glass, in which crystals of calcium metaphosphate are present at the shaping surface of the mold which comes into contact with the material to be shaped.