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:
Jun. 28, 2016
Filed:
May. 28, 2012
Applicant:
Takeaki Kumagai, Tokyo, JP;
Inventor:
Takeaki Kumagai, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/36 (2006.01); B29C 43/00 (2006.01); C08K 9/04 (2006.01); C08K 3/00 (2006.01);
U.S. Cl.
CPC ...
C08K 9/04 (2013.01); B29C 43/003 (2013.01); C08K 3/0033 (2013.01); C08K 3/36 (2013.01);
Abstract
A mixed material which includes a poly(methyl methacrylate) and inorganic fine particles which are surface-treated with a functional group having an amino group or a hexadecyl group or inorganic fine particles having hydrophilic surfaces and in which the content of the inorganic fine particles is 30 to 80 vol % is molded into an organic-inorganic composite molded product, and hence, a low coefficient of linear expansion in a range of 20 to 60 degrees Celsius, such as 20*10/degree Celsius or less, is realized.