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:
Oct. 27, 2015
Filed:
Sep. 27, 2012
Hitachi Chemical Company, Ltd., Tokyo, JP;
Toshihiro Endou, Oyama, JP;
Hironori Ishizaka, Yuuki, JP;
Masahiko Oota, Oyama, JP;
Kouji Tasaki, Chikusei, JP;
Hiroyuki Hosoi, Higashikurume, JP;
Jo Kakuta, Goshogawara, JP;
Hiroaki Narita, Aomori, JP;
Hiroki Sato, Aomori, JP;
HITACHI CHEMICAL COMPANY, LTD., Tokyo, JP;
Abstract
Provided is an RFID tag, wherein a communication distance of several centimeter or more can be secured and the cost of which can be reduced in comparison to conventional on-chip antennas, even when being compact in size (square shaped with a side of 1.9 to 13 mm). The RFID tag () comprises an antenna (), an IC chip () connected to the antenna (), and a sealing material () that seals the IC chip () and the antenna (). The antenna () is a coil antenna or a loop antenna, and the resonance frequency (f) of an electric circuit constituted by the inductance (L) of the antenna () and the capacitance (C) of the IC chip () is equal to the operation frequency of the IC chip (), or in the vicinity thereof.