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. 23, 1987
Filed:
Aug. 07, 1985
Applicant:
Inventors:
Seiji Matsushita, Aichi, JP;
Akira Fujishima, Ichinomiya, JP;
Isao Arika, Aichi, JP;
Joji Nakamura, Inazawa, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03J / ;
U.S. Cl.
CPC ...
334 15 ; 455195 ;
Abstract
In a variable capacitance tuning circuit for high-frequency signals, a first varactor diode is connected between either the receiving end or feeding end and ground, one end of a tuning coil is connected to the receiving end or feeding end, and a second varactor diode is connected between the other end of the tuning coil and ground.
Matsushita, Seiji. (1987). Variable-capacitance tuning circuit for high-frequency signals (U.S. Patent No. 4675634). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4675634
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile