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:
Jul. 12, 2022
Filed:
Sep. 06, 2019
Applicant:
Tanaka Kikinzoku Kogyo K.k., Tokyo, JP;
Inventors:
Tomoyuki Tada, Ichikawa, JP;
Toshihiro Osawa, Isehara, JP;
Naoya Nagao, Uji, JP;
Atsushi Nakaoka, Uji, JP;
Assignee:
TANAKA KIKINZOKU KOGYO K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B 37/083 (2006.01); C03B 37/08 (2006.01); C03B 37/095 (2006.01);
U.S. Cl.
CPC ...
C03B 37/083 (2013.01); C03B 37/0805 (2013.01); C03B 37/095 (2013.01);
Abstract
A bushing for producing glass fibers, including: a base plate; and multiple nozzles from which molten glass is discharged, in which a nozzle group formed with the alignment of the multiple nozzles is joined to the base plate. A coating layer made of ceramics is formed on each of the nozzles forming at least a row of the outermost layer of the nozzle group, but the coating layer does not cover the entire nozzle, that is, the nozzle is covered so as to be in a state of no coating layer in the vicinity of the nozzle tip.