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. 28, 2005
Filed:
Jun. 20, 2003
Applicants:
Kazumasa Haruta, Kanazawa, JP;
Takehisa Kajikawa, Nishinomiya, JP;
Inventors:
Kazumasa Haruta, Kanazawa, JP;
Takehisa Kajikawa, Nishinomiya, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01P007/00 ;
U.S. Cl.
CPC ...
Abstract
A high-frequency module includes a dielectric plate in which a resonator is formed and a cover for covering the dielectric plate. A hole is provided in the cover. A laser beam for laser trimming passes through the hole. The area of opening and the depth of the hole are defined so that electromagnetic waves in a usable frequency band are cut off in the hole. An electrical characteristic is measured in a state where all components including the cover are assembled, and laser trimming is performed through the hole so as to obtain a desired characteristic.