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:
Nov. 23, 2004
Filed:
May. 15, 2003
Applicant:
Inventors:
Akira Yamauchi, Shiga, JP;
Yoshiyuki Arai, Shiga, JP;
Assignee:
Toray Engineering Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B30B 1/534 ;
U.S. Cl.
CPC ...
B30B 1/534 ;
Abstract
A ceramic holder is mounted on the lower end of a connecting block of metal mounted on the lower end of a tool main body of metal, such ceramic holder , a ceramic heater and a ceramic presser being sintered. In addition) the coefficient of linear expansion of the ceramic holder is approximately equal to those of the ceramic heater and ceramic presser ; furthermore, the thermal conductivities of the ceramic holder and ceramic presser are greater as the pressure side of the ceramic presser as seen from the ceramic heater is approached and are smaller as the attaching surface side of the ceramic holder is approached.