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. 03, 2026
Filed:
Jun. 01, 2023
Sumitomo Electric Industries, Ltd., Osaka, JP;
Takahiro Suganuma, Osaka, JP;
Takemi Hasegawa, Osaka, JP;
Tooru Motofuji, Osaka, JP;
Ayumi Inoue, Osaka, JP;
Kazuo Kaneko, Osaka, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Saka, JP;
Abstract
The optic fiber base material production method includes melting and connecting glass pipes to both ends of a clad pipe, in which holes are provided, so as to surround the holes, heating the connections of the clad pipe and glass pipes at a heating temperature below the melting temperature of the connections, and slowly cooling the connections from the heating temperature after heating.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile