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. 07, 2005
Filed:
May. 15, 2003
Applicants:
Michio Miura, Kawasaki, JP;
Masahiko Imai, Kawasaki, JP;
Takashi Matsuda, Kawasaki, JP;
Masanori Ueda, Yokohama, JP;
Osamu Ikata, Yokohama, JP;
Inventors:
Michio Miura, Kawasaki, JP;
Masahiko Imai, Kawasaki, JP;
Takashi Matsuda, Kawasaki, JP;
Masanori Ueda, Yokohama, JP;
Osamu Ikata, Yokohama, JP;
Assignee:
Fujitsu Media Devices Limited, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H009/64 ;
U.S. Cl.
CPC ...
Abstract
A surface acoustic wave device includes multiple SAW resonators formed on a piezoelectric substrate and connected in a ladder arrangement, the piezoelectric substrate having a polarization inverted region on which either a series-arm resonator or a parallel-arm resonator is formed.