Tdk Corporation

Tomohiro Moriki

Noritaka Chiyo

Toshio Tomonari

Shigeru Kaneko

Takahiro Ohishi

Junpei Hayama

Takakazu Maruyama

Hirohumi Asou

Masaki Matsushima

Shigeki Ohtsuka

Takaaki Imai

Mutsuko Nakano

Akihito Watanabe

Shigenori Hirata

Takuya Yoshida

Ken Unno

Osamu Taguchi

Junpei Hamaya

Disclosed herein is a coil component that includes a substrate having a first surface, and a first coil pattern formed on the first surface of the substrate. The first coil pattern includes a plurality of turns having an innermost turn and an outermost turn. Each of the innermost and outermost turns is radially divided into a plurality of lines. The innermost turn is greater in a number of lines than the outermost turn.

Coil component

Disclosed herein is a coil component that includes a substrate having a first surface, and first and second coil patterns coaxially formed on the first surface of the substrate and electrically isolated from each other. The first coil pattern has a plurality of turns including a first turn and a second turn. A predetermined turn of the second coil pattern is disposed between the first and second turns of the first coil pattern.

Coil component and wireless communication device having the same

Disclosed herein is an apparatus that includes a substrate having first and second surfaces opposite to each other, a first coil pattern formed on the first surface of the substrate, and a second coil pattern formed on the second surface of the substrate. The first coil pattern includes first and second lines, and the second coil pattern includes third and fourth lines. The first line is greater in a number of turn than the second line, and the third line is greater in a number of turn than the fourth line. The first line is connected to the fourth line, and the third line is connected to the second line.

A fluid pressure detection device capable of accurately detecting a pressure change of a fluid flowing inside a tube includes a substrate, a piezoelectric element formed on the top surface of the substrate, a support body which is annular and surrounds the piezoelectric element and supports the top surface of the substrate, and a lid body which is provided to close the top opening of the support body, and deforms the tube with the bottom surface of the substrate by pressing the substrate through the support body.

Fluid pressure detection device

Disclosed herein is a coil component that includes a first coil pattern wound in a planar spiral shape. At least one turn constituting the first coil pattern is divided into a plurality of lines by a spiral slit, and a space width between the plurality of lines differs depending on a planar position.

Disclosed herein is a coil component that includes a first coil part spirally wound in a plurality of turns, the first coil part including a first turn positioned at an innermost periphery and a second turn positioned on an outer peripheral side relative to the first turn; and a second coil part spirally wound in a plurality of turns, the second coil part including a third turn positioned at an innermost periphery and a fourth turn positioned on an outer peripheral side relative to the third turn. The first turn and the fourth turn are connected to each other, and the second turn and the third turn are connected to each other.

Disclosed herein is a coil component that includes first and second substrates, a first coil pattern formed on one surface of the first substrate, a second coil pattern formed on one surface of the second substrate, a first terminal electrode connected to one end of the first coil pattern and protruding from the first substrate, and a second terminal electrode connected to one end of the second coil pattern and protruding from the second substrate. The first and second substrates are laminated such that the first and second terminal electrodes overlap each other and are connected to each other.

Coil component and wireless power transmission device provided with the same

Disclosed herein is an antenna device that includes a substrate, a conductor pattern formed on the substrate, and a magnetic sheet formed on the substrate. The conductor pattern includes a spiral or loop-shaped antenna coil and a spiral or loop-shaped coupling coil connected to the antenna coil and having a diameter smaller than that of the antenna coil. The antenna coil overlaps the magnetic sheet. The magnetic sheet has a first opening at a position overlapping the coupling coil such that an inner diameter area of the coupling coil completely overlaps the first opening in a plan view.

Antenna device and IC card having the same

Disclosed herein is an antenna device that includes a substrate; a conductor pattern formed on the substrate and including a spiral or loop-shaped antenna coil, a spiral or loop-shaped coupling coil being connected to the antenna coil and having a diameter smaller than that of the antenna coil, and a spiral-shaped booster coil at least partially overlapping the antenna coil through the substrate without being connected thereto; and a resonance capacitor connected to the booster coil. The number of turns of the booster coil is larger than that of the antenna coil.

A fluid pressure detection device capable of accurately detecting a pressure change of a fluid flowing inside a tube includes a substrate, and piezoelectric elements on the top surface of the substrate. The substrate is substantially rectangular in shape. The piezoelectric elements are arranged along the longitudinal direction of the substrate with long sides of each of the piezoelectric elements substantially perpendicular to the long side of the substrate. The substrate has slits on both sides of each of the piezoelectric elements in the longitudinal direction of the substrate. When detecting the pressure, the tube is deformed with a bottom surface of the substrate.

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Tokyo, Japan

Tomohiro Moriki