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:
Oct. 30, 2007
Filed:
Feb. 26, 2007
Applicant:
Taiji Kiku, Handa, JP;
Inventor:
Taiji Kiku, Handa, JP;
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24C 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a blast processing method for removing a deposit adhered onto a surface of a ceramic heater formed of aluminum nitride by blowing a blasting material onto the surface. Abrasive grains made of silicon carbide or aluminum oxide and having a grain size of #400 to #800 are used as the blasting material, and a blast pressure as a pressure when the blasting material collides with the surface of the ceramic heater is set at 40 to 150 gf/cm.