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:
Nov. 29, 2005
Filed:
Jan. 28, 2003
Kazuhiko Hashimoto, Moriguchi, JP;
Takashi Hashida, Osaka, JP;
Masaaki Suzuki, Osaka, JP;
Masahiko Hashimoto, Shijonawate, JP;
Hidetomo Nagahara, Kyoto, JP;
Seigo Shiraishi, Neyagawa, JP;
Norihisa Takahara, Ibaraki, JP;
Kazuhiko Hashimoto, Moriguchi, JP;
Takashi Hashida, Osaka, JP;
Masaaki Suzuki, Osaka, JP;
Masahiko Hashimoto, Shijonawate, JP;
Hidetomo Nagahara, Kyoto, JP;
Seigo Shiraishi, Neyagawa, JP;
Norihisa Takahara, Ibaraki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An acoustic matching layer according to the present invention includes a powder of a dry gel. The dry gel preferably has a density of 500 kg/mor less and an average pore diameter of 100 nm or less. By using the dry gel powder, a variation in the property of the acoustic matching layer can be reduced.