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:
Feb. 16, 2010
Filed:
Jun. 08, 2007
Yasuaki Konishi, Ashigarakami-gun, JP;
Masao Watanabe, Ashigarakami-gun, JP;
Hiroyuki Funo, Ashigarakami-gun, JP;
Kiyoshi Iida, Ashigarakami-gun, JP;
Ryota Mizutani, Ashigarakami-gun, JP;
Yasuaki Konishi, Ashigarakami-gun, JP;
Masao Watanabe, Ashigarakami-gun, JP;
Hiroyuki Funo, Ashigarakami-gun, JP;
Kiyoshi Iida, Ashigarakami-gun, JP;
Ryota Mizutani, Ashigarakami-gun, JP;
Fuji Xerox Co., Ltd, Tokyo, JP;
Abstract
A sensor includes a substrate, a medium on which a surface acoustic wave propagates, a reference electrode, an antenna, a transducer that includes a first electrode connected to the antenna and a second electrode connected to the reference electrode and arranged opposite to the first electrode, and that has a function of converting a signal received by the antenna into a surface acoustic wave propagating on the medium, and a function of converting a surface acoustic wave propagating on the medium and reaching the transducer into a signal and outputting the signal to the antenna, a reflector that throws back a surface acoustic wave generated by the transducer, propagating on the medium, and reaching the reflector, toward the transducer, and an impedance converter connected to the reference electrode, impedance of which changes in response to a change in circumstances surrounding the sensor.