Nippon Telegraph and Telephone Corporation

Nippon Steel Corporation

Akihiko Hirata

Satoshi Shigematsu

Katsuyuki Machida

Hiroki Morimura

Ai-ichiro Sasaki

Osamu Kagami

Fumiharu Morisawa

Souichi Oka

Nobuo Kadowaki

Tomohiro Mizutani

Yoichiro Mori

Tadaaki Ochiai

Satoshi Kato

Kazushi Iwakiri

Ai-Ichiro Sasaki

A metal sheet for containers includes a metal sheet and a polyester film which is laminated on a surface of the metal sheet to be an inner surface side of containers. The polyester film contains a wax in an amount of 0.010 to 2.000 mass %, and has a dipole-dipole force of 40 mN/m or less.

Metal sheet for containers and method for manufacturing same

A film-laminated metal plate having excellent retort adhesiveness includes: a metal plate; a resin film thermally fusion-bonded to a surface of the metal plate; and a bubble contained between the metal plate and the resin film. An average bubble height of three bubbles with higher heights among the bubbles measured by using a 3D analysis image of a laser microscope is 0 &#x3bc;m or more and 5.0 &#x3bc;m or less. The test piece is obtained by cutting a portion of one end side of the metal plate in a longitudinal direction while leaving the resin film on a side which becomes an inner surface side of the container when the film-laminated metal plate is processed into a container. When a retort treatment is carried out on the test piece at a temperature of 125&#xb0; C. for 30 minutes in a state in which a 100 g weight is hung from the one end side of the test piece and the test piece is folded back toward the other end side of the test piece in the longitudinal direction by 180&#xb0;, a length of the resin film peeled off from the metal plate of the test piece is 15 mm or less.

Film-laminated metal plate having excellent retort adhesiveness, and method for manufacturing same

A loop antenna array capable of forming a clear boundary of a communication area is provided. The loop antenna array includes three loop antennas, in which a direction of a current flowing through the loop antenna arranged in the middle and a direction of a current flowing through each of the loop antennas arranged on both sides of the loop antenna arranged in the middle are opposite from each other, and the sum of magnetic moments of the three loop antennas is zero.

Loop antenna array

A loop antenna array that can form a linear and clear communication area boundary is provided. The loop antenna array includes two loop antennas. Currents flow through the loop antennas in opposite directions from each other. In other words, viewing in a direction passing through each of the loop antennas, at a timing when a positive voltage is applied to a signal terminal of an alternating-current source, a clockwise current flows through one loop antenna while a counterclockwise current flows through the other loop antenna. Conversely, at a timing when a negative voltage is applied to the signal terminal of the alternating-current source, a counterclockwise current flows through one loop antenna while a clockwise current flows through the other loop antenna.

Provided is an antenna control technique for forming the boundary of a communication area at a desired location. An antenna parameter control apparatuscalculates an antenna parameter in a case of feeding electric currents with an equal intensity in mutually reverse directions to two antennasA,B which generate a magnetic field. The antenna parameter control apparatusincludes an input parameter acquisition unitthat acquires input parameters for calculating the antenna parameter; and a parameter calculation unitthat calculates an inter-center distance d between the antennasA,B as the antenna parameter based on the input parameters.

Antenna control apparatus, antenna control program, and antenna control system

A small capacitance change detection device includes a capacitance detection element, signal generation circuit, signal amplification circuit, and output circuit. The signal amplification circuit includes a first transistor and first to third voltage sources. The second or third voltage source is connected to the other output terminal of the first transistor via a first switch. A voltage to be applied from the second voltage source to the other output terminal is set to have a value equal to or larger than a value obtained by subtracting a threshold voltage of the first transistor from a voltage of the first voltage source while a voltage to be applied from the third voltage source to the other output terminal is set to have a value equal to or smaller than a value obtained by subtracting the threshold voltage from the voltage of the first voltage source. The output circuit is connected to a connection point between the other output terminal of the first transistor and the first switch and, after a voltage of the second or third voltage source is applied to the connection point in an ON state of the first switch, receives the voltage at the connection point on the basis of an OFF state of the first switch and charge control by the signal generation circuit after the first switch is turned off.

Small capacitance change detection device

A surface shape recognition sensor of this invention includes at least a plurality of capacitance detection elements having sensor electrodes arranged in the same plane on an interlevel dielectric film formed on a semiconductor substrate to be insulated/isolated from each other, capacitance detection means for detecting the capacitances of the capacitance detection elements, and a stationary electrode disposed on the interlevel dielectric film to be insulated/isolated from the sensor electrodes. When an object to be recognized touches the upper surface of the stationary electrode, the capacitances detected by the capacitance detection elements change in accordance with the recesses/projections on the upper surface.

Growing community of inventors

Tokyo, Japan

Akihiko Hirata