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:
Apr. 18, 1989
Filed:
Oct. 13, 1987
Applicant:
Inventors:
Satoru Nagai, Toki, JP;
Kazuo Imahashi, Chofu, JP;
Yoshio Nagaya, Toki, JP;
Shigeo Yoshida, Shiga, JP;
Satoshi Kitagawa, Shiga, JP;
Takatoshi Miyazawa, Shiga, JP;
Assignees:
National House Industrial Co., Ltd., Osaka, JP;
Takasago Industry Co., Ltd., Gifu, JP;
Intelhearts Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ; B29C / ; B29C / ;
U.S. Cl.
CPC ...
264 42 ; 264235 ; 264346 ;
Abstract
Inorganic raw materials are heated and pressed in a kiln to produce a porous ceramic panel. The foaming body is first-pressed in a foaming step, and after the foaming step the first-pressed foamed body is second-pressed, in order to obtain superior dimensional accuracy and surface smoothness. The panels are applicable, for instance, to interior or exterior materials of various kinds of buildings such as prefabricated houses and shops.