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:
Mar. 09, 2004
Filed:
Sep. 24, 2001
Applicant:
Inventors:
Noboru Kageyama, Higashimurayama, JP;
Hisao Wakabayashi, Tokorozawa, JP;
Kiyoshi Shimizu, Tokyo, JP;
Atsushi Omura, Tokyo, JP;
Assignee:
Citizen Watch Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 4/108 ;
U.S. Cl.
CPC ...
H01L 4/108 ;
Abstract
A crystal oscillator is mounted on a ceramic substrate so that the crystal oscillator is sealed air tight. The peripheral portion of the lower surface of the substrate is provided with electrodes for external connection that project downward from the lower surface of the substrate. An electronic component is mounted on the lower surface of the substrate.