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:
May. 12, 2015
Filed:
Aug. 30, 2012
Applicants:
Yuriko Kaneko, Nara, JP;
Takuya Iwamoto, Osaka, JP;
Ushio Sangawa, Nara, JP;
Masahiko Hashimoto, Osaka, JP;
Norihisa Mino, Osaka, JP;
Inventors:
Yuriko Kaneko, Nara, JP;
Takuya Iwamoto, Osaka, JP;
Ushio Sangawa, Nara, JP;
Masahiko Hashimoto, Osaka, JP;
Norihisa Mino, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 33/16 (2006.01); H04R 23/00 (2006.01); C01B 33/12 (2006.01);
U.S. Cl.
CPC ...
C01B 33/16 (2013.01); C01B 33/12 (2013.01); H04R 23/008 (2013.01);
Abstract
A porous silica material in which silica particles are connected to one another three-dimensionally, wherein: the porous silica material includes a through hole including first pores smaller than a mean free path of an air, and second pores larger than the first pores; the porous silica material has a density of 100 kg/mor more and 300 kg/mor less; and an isobutyl group is bound to silicon of silica of the silica particles.