Kyocera Corporation

Koji Hamada

Kazuo Watada

Shunichi Murakawa

Akinori Sato

Hisamitsu Sakai

Masashi Kato

Toshikazu Kishino

Kiyohiro Sakasegawa

Tsuyoshi Furuno

A surface-mount type antenna includes a rectangular-parallelepiped base body made of a dielectric or magnetic material, having a first surface to be placed on a target substrate, second to fifth surfaces that are continuous with the first surface, and a sixth surface located in parallel with the first surface; a ground electrode formed on at least one of the second to fifth surfaces; two radiating electrodes that are continuous with the ground electrode and extend over two or more adjacent surfaces of the second to sixth surfaces; and two feeding electrodes formed on at least one of the second to fifth surfaces so as to be spaced apart circumferentially of the continuum of the second to fifth surfaces to provide the ground electrode in between. The feeding electrode is capacitance-coupled to the radiating electrode for effecting feeding.

Surface-mount type antenna and antenna apparatus employing the same, and wireless communication apparatus

In order to provide a small size antenna where excellent antenna properties can be stably gained, a frequency adjustment is easy and a simple measurement is possible, according to the present invention, a small size antenna formed of a conductor of at least two adjoining surfaces of a base in rectangular parallelepiped form made of dielectric ceramics is characterized in that: a step is made of a flat portion parallel to one surface of the two adjoining surfaces and an inclining portion located between the one surface and the flat portion, in a corner portion of the two surfaces on which the conductor is formed; the width of the flat portion is 0.08 mm or less; and a border portion between the flat portion and the other surface of the two adjoining surfaces is a curve having a curvature radius R of 0.03 mm to 0.2 mm.

Small size antenna, surface mounting type antenna and antenna device as well as radio communication device

A plasma display substrate comprising a rear plate and a plurality of partitions for forming display cells between every two adjacent partitions on one of the surfaces of the rear plate, wherein the partitions are molded independently of the rear plate with the mixture of ceramic or glass powder and a binder inclusive of organic additives and solvents are formed in a desired shape and a desired disposition on one of the surfaces of the rear plate made of ceramics or glass, and integrally joined to the rear plate. According to the substrate, the display cells have improved dimensional accuracy, particularly, the partitions having highly accurate flat side surfaces with no deformation and having a predetermined height can be formed easily. This disclosure also provides a method of producing the same.

Plasma display substrate and a production method thereof

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Kyoto, Japan

Koji Hamada