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. 08, 2025
Filed:
Jun. 14, 2022
Agc Inc., Tokyo, JP;
Terutaka Maehara, Tokyo, JP;
Akifumi Niwa, Tokyo, JP;
Shuntaro Hyodo, Tokyo, JP;
Yukihito Akita, Tokyo, JP;
Takashi Enomoto, Tokyo, JP;
Yoji Doi, Tokyo, JP;
Roger Pauli, Stourbridge, GB;
Lawrence Keen, Stourbridge, GB;
AGC INC., Tokyo, JP;
Abstract
A heater for melting glass includes: a heating member containing carbon (C) configured to emit heat rays upon power feeding; and a tubular member made of metal configured to have one end closed, and to house the heating member. The heating member includes a first heat generating part and a second heat generating part along an extending axis direction of the heater, and the first heat generating part is arranged at a position closer to the one end of the tubular member than is the second heat generating part. Denoting a unit-length resistance of the first heat generating part along the extending axis direction by X (Ω/m), and denoting a unit-length resistance of the second heat generating part by Y (Ω/m),( 1/30)<(½) Formula (1)is satisfied.