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:
Apr. 22, 2014
Filed:
Nov. 26, 2007
Yuji Furumura, Yokohama, JP;
Naomi Mura, Tokyo, JP;
Shinji Nishihara, Kokubunji, JP;
Katsuhiro Fujino, Yokohama, JP;
Katsuhiko Mishima, Yokohama, JP;
Susumu Kamihashi, Yokohama, JP;
Yuji Furumura, Yokohama, JP;
Naomi Mura, Tokyo, JP;
Shinji Nishihara, Kokubunji, JP;
Katsuhiro Fujino, Yokohama, JP;
Katsuhiko Mishima, Yokohama, JP;
Susumu Kamihashi, Yokohama, JP;
Philtech Inc., Tokyo, JP;
Abstract
RF particles that can render more difficult fabrication of counterfeit notes and the like, can generate radiofrequency magnetic fields by oscillation of a tank circuit having a particular resonant frequency, and that can easily and reliably supply electric power for oscillation, RF powder, and a method for exciting the RF powder are provided. In an RF powder particle, a coil (inductance element) serving as an antenna and a capacitor (capacitance element) connected to the coil are formed on an insulating film surface of a substrate. The inductance element and the capacitance element form a tank circuit, and a photovoltaic cell for supplying power to the tank circuit is disposed on the substrate.