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:
Jun. 24, 2003
Filed:
May. 25, 2001
Applicant:
Inventors:
Sunao Seko, Oguni-machi, JP;
Tomio Konn, Oguni-machi, JP;
Tomohiro Nagata, Yamagata, JP;
Norihiko Saito, Oguni-machi, JP;
Hideyuki Yokoyama, Iide-machi, JP;
Masakazu Kobayashi, Arakawa-machi, JP;
Takanori Saito, Sagamihara, JP;
Ken Nakao, Sagamihara, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F26B 3/30 ;
U.S. Cl.
CPC ...
F26B 3/30 ;
Abstract
A heater sealed with carbon wire heating element has a carbon wire heating element sealed with a quartz glass member, the carbon wire being prepared by knitting carbon single fibers into a knitted cord of a braid, each wire having a crystal structure with a interlayer spacing d (002) thereof being 0.343 or less and crystallite size Lc (002) thereof being 4.0 nm or more.