Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Hiromi Sakita

Katsumi Sasaki

Kenzo Isozaki

Kengo Shiiba

Kazuhiro Takeda

Kazuhide Goto

Makoto Yoshinomoto

Kuniaki Kiyosue

Mitsuo Kanmera

Masanobu Kuroki

Kouichi Watanabe

Yoshitaka Mizoguchi

Yoshihiko Takayama

Kouji Nishimura

Noriya Sato

Hidetsugu Fujimoto

Kenzou Isozaki

Hatsuhiro Yano

Yoshio Onaka

Kazuhiro Eguchi

Takumi Naruse

Kongo Shiiba

Yumie Watanabe, Legal Representative

An antenna apparatus used in a wireless communication medium or a wireless communication medium processing apparatus constructed by a constitution of including a magnetic member in which a magnetic ceramic powder is used as a major component thereof and which is provided with flexibility; an antenna formed at a surface or inside of the magnetic member, and a matching circuit of the antenna formed at the surface or the inside of the magnetic member.

Antenna apparatus

An antenna apparatus used in a wireless communication medium or a wireless communication medium processing apparatus constructed by a constitution of including a magnetic member in which a magnetic ceramic powder is used as a major component thereof and which is provided with flexibility, an antenna formed at a surface or inside of the magnetic member, and a matching circuit of the antenna formed at the surface or the inside of the magnetic member.

Antenna apparatus employing a ceramic member mounted on a flexible sheet

A surface-mount type antenna and a communication terminal using the same. A radiator electrode is provided on a first principal face of a substrate. A ground electrode is provided on the second principal face of the substrate. A first feeder electrode has at least a portion thereof provided on a side face and on the second principal face of the substrate. A second feeder electrode is provided on an inner wall face of a hole formed parallel to the first and second principal faces. The first feeder electrode and the ground electrode are kept in a non-contact state. The first feeder electrode and the second feeder electrode are in electrical contact. A mobile communication terminal using the surface-mount type antenna is small in size, exhibits small variations in characteristics, and provides high productivity and reliability.

Surface-mount type antennas and mobile communication terminals using the same

A chip antenna that is simple in structure, produces small variation in antenna characteristics between individual antennas, and requires no circuit adjustments, is excellent in productivity. The chip antenna is capable of being mounted on a circuit board, as well as a wireless terminal using the chip antenna. A method of fabricating the chip antenna. A core body is made from an insulating material in a quadrangular or circular cylinder shape. A conductor in a helical shape is mounted on the side surface of the core body. A terminal portion is provided on the core body and electrically connected with an end portion of the conductor. The width, depth, and length of the core body are within ranges of 0.5-5 mm, 0.5-5 mm, and 4-40 mm, respectively. Intrinsic volume resistance and relative dielectric constant of the material are 10&#x3a9;&#xb7;m or above and 40 or below, respectively.

Chip antenna, radio communications terminal and radio communications system using the same and method for production of the same

Filter

An electronic component which comprises a substrate, conductive film on the surface of the substrate, a groove created on the conductive film, a protective material covering the groove, and terminals and on both ends of the substrate. Lengths P to P of the terminals and, the surface roughness and materials of the terminals and, and configuration of the protective material are specified for providing an electronic component and radio terminal with at least one of improved productivity, mountability, and characteristics.

Electronic component and radio terminal using the same

A surface mount type antenna and a communication terminal using the same. A radiator electrode is provided on a first principal face of a substrate. A ground electrode is provided on the second principal face of the substrate. A first feeder electrode has at least a portion thereof provided on a side face and on the second principal face of the substrate. A second feeder electrode is provided on an inner wall face of a hole formed parallel to the first and second principal faces. The first feeder electrode and the ground electrode are kept in a non-contact state. The first feeder electrode and the second feeder electrode are in electrical contact. A mobile communication terminal using the surface-mount type antenna is small in size, exhibits small variations in characteristics, and provides high productivity and reliability.

A chip antenna that is simple in structure, produces small variation in antenna characteristics between individual antennas, and requires no circuit adjustments, is excellent in productivity. The chip antenna is capable of being mounted on a circuit board, as well as a wireless terminal using the chip antenna. A method of fabricating the chip antenna. A core body is made from an insulating material in a quadrangular or circular cylinder shape. A conductor in a helical shape is mounted on the side surface of the core body. A terminal portion is provided on the core body and electrically connected with an end portion of the conductor. The width, depth, and length of the core body are within ranges of 0.5-5 mm, 0.5-5 mm, and 4-40 mm, respectively. Intrinsic volume resistance and relative dielectric constant of the material are 10 &OHgr;&middot;m or above and 40 or below, respectively.

An inductance element providing a high Q factor even with a dawn-sized configuration comprises a column shape body ( ), a coil ( ) wound around the body ( ), a terminal electrode provided at both ends of the body ( ), connected with the coil ( ), and a protection material ( ) for covering the coil ( ), which has a relative dielectric constant not higher than 6.0.

Inductance element

An inductance device wherein a conductor film is formed on a base, grooves are formed in the conductor film, a protective material is disposed on the grooves, and a length L1, a width L2 and a height L3 of the inductance device satisfy-the following relation:

Wireless terminal equipment including electric component having

An inductance device wherein a conductor film is formed on a base, grooves are formed in the conductor film, a protective material is disposed on the grooves, and a length L1, a width L2 and a height L3 of the inductance device satisfy the following relation:

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Miyazaki, Japan

Hiromi Sakita