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:
Jan. 10, 2006
Filed:
Jul. 23, 2003
Mitihiko Takase, Ikoma, JP;
Michio Okajima, Neyagawa, JP;
Akihisa Yoshida, Kyoto, JP;
Kentaro Setsune, Sakai, JP;
Kouzou Murakami, Osaka, JP;
Kunihiro Fujii, Hirakata, JP;
Mitihiko Takase, Ikoma, JP;
Michio Okajima, Neyagawa, JP;
Akihisa Yoshida, Kyoto, JP;
Kentaro Setsune, Sakai, JP;
Kouzou Murakami, Osaka, JP;
Kunihiro Fujii, Hirakata, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A surface acoustic wave device includes a piezoelectric substrate, a first interdigital transducer and a second interdigital transducer formed on the substrate so that the first and second interdigital transducers are opposed to each other. The substrate includes a doping region that is doped with a substance in at least one form selected from the group consisting of atoms, molecules and clusters in a surface between the first and second interdigital transducers.