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:
Jan. 07, 1997
Filed:
Sep. 25, 1995
Yasuhiro Itabashi, Kamakura, JP;
Kazuhito Miyashita, Kamakura, JP;
Yoshiyuki Chatani, Kamakura, JP;
Takayoshi Furuno, Kamakura, JP;
Hiroaki Miyashita, Kamakura, JP;
Toshio Masujima, Kamakura, JP;
Makoto Matsunaga, Kamakura, JP;
Takashi Katagi, Kamakura, JP;
Hiroyuki Aoki, Kamakura, JP;
Tetsuo Haruyama, Kamakura, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An antenna apparatus comprises a dielectric substrate, an earth conductor mounted on one surface of the substrate and forming a microstrip transmission line, an upper conductor mounted on the other surface of the substrate and forming a microstrip transmission line, an antenna element formed integrally with the microstrip transmission lines, and a delayed wave opening situated in the earth conductor in confronting relationship with the upper conductor.