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. 06, 1995
Filed:
Sep. 14, 1993
Nobuhiko Shibagaki, Hachioji, JP;
Mitsutaka Hikita, Hachioji, JP;
Toyoji Tabuchi, Yokohama, JP;
Takatoshi Akagi, Kokubunji, JP;
Satoshi Wakamori, Yokohama, JP;
Tomomi Matsumoto, Hiratsuka, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Video & Information System, Inc., Kanagawa, JP;
Abstract
In a high frequency circuit device, inductive circuit elements constituting a matching circuit are constructed of so-called helical coils having fine metal wires wound in a hollow solenoid form, which are disposed inside a package in which a high frequency circuit element such as a surface acoustic wave element or the like is mounted. The high frequency circuit device may be utilized in equipment such as wireless communication equipment for reducing the size as well as providing good high frequency characteristics.