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:
Aug. 22, 1989
Filed:
Jun. 29, 1988
Takashi Tanaka, Oguni, JP;
Yoshiyuki Watanabe, Oguni, JP;
Toshiba Ceramics Co., Ltd., Tokyo, JP;
Abstract
A method for making a component for a semi-conductor diffusion furnace by blending two types of silicon carbide powders, that is, 10 parts by weight of intermediate silicon carbide having an average particle size of 10-30 microns and 10-25 parts by weight of coarse silicon carbide having an average particle size of 80-200 microns, thereby to make a mixture, admixing an organic binder with the mixture, thereafter granulating the mixture thereby to produce pellets, preforming the pellets by a rubber press thereby to produce a formed body, presintering the formed body thereby to produce a presintered body, and impregnating the presintered body with silicon and simultaneously sintering it.