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. 30, 2015
Filed:
Feb. 14, 2008
Applicants:
Yasuyuki Aritaki, Kyoto, JP;
Shinobu Obata, Kyoto, JP;
Teruhisa Sako, Kyoto, JP;
Inventors:
Assignee:
ROHM CO., LTD., Kyoto, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 1/00 (2006.01); H05B 3/00 (2006.01); H05B 11/00 (2006.01); G03G 15/20 (2006.01); H05B 3/26 (2006.01); H05B 3/28 (2006.01);
U.S. Cl.
CPC ...
G03G 15/2003 (2013.01); H05B 3/00 (2013.01); G03G 15/2064 (2013.01); H05B 3/26 (2013.01); H05B 3/28 (2013.01); H05B 2203/017 (2013.01);
Abstract
A heater (A) includes a substrate (), a heating resistor () formed on the substrate () and a protective film () covering the heating resistor (). The protective film () includes a crystallized glass layer () and an amorphous glass layer () covering the crystallized glass layer (). The protective film () further includes a semi-crystalline glass layer () surrounding an edge () of the crystallized glass layer (). The semi-crystalline glass layer () intervenes between the substrate () and a portion of the amorphous glass layer () that projects relative to the crystallized glass layer ().