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. 16, 2007
Filed:
Mar. 04, 2004
Kazuyoshi Chikugo, Tokyo, JP;
Hidemi Ukai, Tokyo, JP;
Koichi Murakami, Tokyo, JP;
Koshichi Ogawa, Kanagawa, JP;
Kazuyoshi Chikugo, Tokyo, JP;
Hidemi Ukai, Tokyo, JP;
Koichi Murakami, Tokyo, JP;
Koshichi Ogawa, Kanagawa, JP;
Ishikawajima-Harima Heavey Industries Co., Ltd., Tokyo, JP;
Abstract
A method for manufacturing a mold (), which comprises a step of forming a layer () of combustible powdery particles () around a wax mold (), which is a lost pattern, a step of forming a film () of a ceramic precursor slurry () around the wax mold () having powdery particles () formed thereon, a step of subjecting the resultant product to a heat treatment, to thereby dewax the wax mold (), and a step of firing the slurry film (), to thereby burn and vanish the powdery particles () in the slurry film () and form a shell (). The mold () has the shell () and a porous layer () formed on the surface () of the cavity of the shell. The mold can be suitably used for manufacturing a porous body () having a porous layer () on the surface thereof.