Invention Grant
- Patent Title: Ceramic sheet and method of producing ceramic sheet
- Patent Title (中): 陶瓷板及其制造方法
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Application No.: US11439257Application Date: 2006-05-24
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Publication No.: US07807257B2Publication Date: 2010-10-05
- Inventor: Kazuo Hata , Norikazu Aikawa , Keijirou Takasaki
- Applicant: Kazuo Hata , Norikazu Aikawa , Keijirou Takasaki
- Applicant Address: JP Osaka-fu
- Assignee: Nippon Shokubai Co., Ltd.
- Current Assignee: Nippon Shokubai Co., Ltd.
- Current Assignee Address: JP Osaka-fu
- Agency: Wenderoth, Lind & Ponack L.L.P.
- Priority: JP10-98631 19980410
- Main IPC: B32B17/10
- IPC: B32B17/10

Abstract:
The present invention relates to a ceramic sheet having uniform quality over its entire surface with a decreased number of detects such as foreign matters and flaws. When the ceramic sheet was divided into sections of 30 mm square or smaller, each divided section has 5 or less defects detected based on an image obtained with a charge coupled device (CCD) camera. The present invention also relates to a method for producing the ceramic sheet. In this method, a green sheet or a calcined sheet mainly including spherical ceramic particles having an average particle diameter of 0.1 to less than 5 μm was used as a spacer. By using this spacer, the green sheet for ceramic sheet slides smoothly on the spacer surface when it shrinks in baking, and the friction resistance between the green sheet for ceramic sheet and the spacer is lowered. In this manner, the method of the present invention can mass-produce the above-described high quality ceramic sheets.
Public/Granted literature
- US20060228555A1 Ceramic sheet and method of producing ceramic sheet Public/Granted day:2006-10-12
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