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:
Jan. 10, 2006
Filed:
Sep. 18, 2002
Applicants:
Hideaki Niimi, Hikone, JP;
Akira Ando, Omihachiman, JP;
Mitsutoshi Kawamoto, Hirakata, JP;
Masahiro Kodama, Shiga-ken, JP;
Inventors:
Hideaki Niimi, Hikone, JP;
Akira Ando, Omihachiman, JP;
Mitsutoshi Kawamoto, Hirakata, JP;
Masahiro Kodama, Shiga-ken, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C04B 33/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
A BaTiO-type semiconducting ceramic material which has undergone firing in a reducing atmosphere and re-oxidation, wherein the relative density of the ceramic material after sintering is about 85–90%. A process for producing the semiconducting ceramic material of the present invention and a thermistor containing the semiconducting ceramic material are also disclosed.