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:
Dec. 07, 1999
Filed:
May. 29, 1998
Yutaka Taguchi, Takatsuki, JP;
Kazuo Eda, Nara, JP;
Osamu Kawasaki, Kyotanabe, JP;
Yosihiro Tomita, Osaka, JP;
Keiji Onishi, Settsu, JP;
Shun-ichi Seki, Amagasaki, JP;
Akihiko Namba, Osaka, JP;
Hiroki Sato, Moriguchi, JP;
Tetsuyosi Ogura, Settsu, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A surface acoustic wave device has a main substrate; a comb-like electrode formed on one of the main surfaces of said main substrate; and a supplementary substrate joined with the other main surface of said main substrate, wherein said supplementary substrate has a smaller thermal expansion coefficient and a larger thickness than said main substrate.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile