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:
Feb. 29, 2000
Filed:
May. 28, 1997
Hiroshi Okabe, Kokubunji, JP;
Osamu Kamimura, Yokohama, JP;
Ken Takei, Hachioji, JP;
Yoshitaka Imakado, Hitachinaka, JP;
Hitachi, Ltd., , JP;
Abstract
An improved, compact, lightweight handy-phone provided with a built-in directional planar antenna is provided. The planar antenna is mounted on a portion of a high-frequency printed wiring board, and a shielding case covers the high-frequency printed wiring board with a surface of the portion exposed. A maximum linear size of the shielding case in the direction of main polarization of the planar antenna is nearly equal to half the wavelength of an electromagnetic wave to be radiated by the planar antenna.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile