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.

Date of Patent:
Apr. 02, 2019

Filed:

Mar. 05, 2015
Applicant:

Mitsubishi Heavy Industries, Ltd., Tokyo, JP;

Inventors:

Kosuke Fujiwara, Tokyo, JP;

Sachio Shimohata, Tokyo, JP;

Kazutaka Mori, Tokyo, JP;

Hidetaka Oguma, Tokyo, JP;

Ikuo Okada, Tokyo, JP;

Yoshitaka Uemura, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C 9/10 (2006.01); B22C 9/24 (2006.01); B28B 1/00 (2006.01); B33Y 10/00 (2015.01); B33Y 80/00 (2015.01);
U.S. Cl.
CPC ...
B22C 9/10 (2013.01); B28B 1/001 (2013.01); B33Y 10/00 (2014.12); B33Y 80/00 (2014.12); Y02P 10/292 (2015.11);
Abstract

A method for manufacturing a core (S) includes: a coating step (S) of adding an organic binder to a large particle group composed of silica-containing large particles, and coating surfaces of the large particles with the organic binder; a mixing step (S) of mixing, after the coating step (S), the large particle group and a small particle group composed of silica-containing small particles having a smaller particle size than the large particles; a laminate shaping step (S) of forming, after the mixing step (S), a molding in which a mixture of the large and small particle groups is used; and a sintering step (S) of sintering the molding after the laminate shaping step (S).


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