Jfe Steel Corporation

Daiwa Seiko, Inc.

Takafumi Ozeki

Yutaka Matsui

Masaru Akiba

Kenji Adachi

Shuichi Kimura

Tomoyoshi Tsurufuji

Yukinori Iizuka

Kazuki Terada

Junji Shimamura

Hajime Takada

Junichi Yotsuji

Daichi Izumi

Hideki Takada

Nobuo Nodera

Hiroki Imanaka

Noriyasu Fukushima

Kikuo Sakai

Yasuo Tomura

Provided are: a mechanical property measuring apparatus and method that can accurately measure a mechanical property through physical quantities; a substance manufacturing equipment and method that can improve the production yield rate and high-quality substance. A mechanical property measuring apparatus () comprises: a physical quantity measuring unit () configured to measure a plurality of physical quantities of a measured object that includes a substance and a film on a surface of the substance; a mechanical property calculating unit () configured to calculate, using a plurality of calculation models each for calculating a mechanical property of the substance and at least two of the plurality of physical quantities measured, the mechanical property of the substance for each of the plurality of calculation models; and a selection processing unit () configured to select one mechanical property based on the at least two of the plurality of physical quantities.

Mechanical property measuring apparatus, mechanical property measuring method, substance manufacturing equipment, substance management method, and substance manufacturing method

Provided are a mechanical property measuring apparatus and method that can accurately measure a mechanical property through physical quantities, etc. A mechanical property measuring apparatus () comprises: a physical quantity measuring unit () configured to measure a plurality of physical quantities of a measured object that includes a substance and a film on a surface of the substance; a calculation model generating unit () configured to select a plurality of pieces of learning data and generate a calculation model for calculating a mechanical property of the substance; and a mechanical property calculating unit () configured to calculate the mechanical property of the substance using the calculation model generated and at least two of the plurality of physical quantities, wherein the selection physical quantities include at least one physical quantity measured using a first measurement signal and at least one physical quantity measured using a second measurement signal.

A metal structure evaluator for rolled steel sheets includes: a magnetic property measuring unit configured to measure a magnetic property of an evaluation target point in at least two or more different magnetization directions by performing, in the at least two or more different magnetization directions, processing of: applying a magnetic field on a surface of a rolled steel sheet in one direction; and measuring a magnetic property of the evaluation target point on the surface of the rolled steel sheet; and a determination unit configured to determine a metal structure of the evaluation target point based on the magnetic property measured by the magnetic property measuring unit.

Metal structure evaluator for rolled steel sheets, method for evaluating metal structure of rolled steel sheet, production facility of steel product, method for manufacturing steel product, and method of quality management of steel product

An ultrasonic measurement method includes: a measuring point setting step of setting an arbitrary measuring point near a weld portion inside of steel material and assuming a virtual reflecting surface that includes the measuring point and is parallel to a weld line direction; a focused beam setting step of transmitting ultrasonic waves of a shear wave mode and focusing onto the measuring point via a coupling medium at a predetermined incident angle with respect to the virtual reflecting surface; a detecting step of detecting reflected waves of the transmitted ultrasonic waves at a boundary between a base metal portion and the weld portion; and an evaluating step of evaluating a shape of the weld portion based on the reflected waves.

Ultrasonic measurement method and ultrasonic measurement apparatus

An ultrasonic flaw detection method to detect flaws on an inner surface of a metallic pipe using ultrasonic waves includes a waveform hold step that acquires and holds waveform data of an echo signal when an ultrasonic probe that generates ultrasonic signals toward the inner surface and the metallic pipe are moved relative to each other, a signal analyzing step that calculates a path length up to receiving an echo signal from the inner surface and a change rate of the path length based on the waveform data held, and a flaw detecting step that detects flaws on the inner surface based on the path length and the change rate of the path length.

Ultrasonic flaw detection method, ultrasonic flaw detection apparatus, and pipe manufacturing method

A reel leg fixing device is made up of a tubular main body 3 provided with a first reel leg receive portion 2 and fittable loosely onto a rod 1, a support portion 4 disposed on one side portion of the tubular main body 3 and extended in the longitudinal direction of the rod 1, a partially cylindrical engaging receive portion 6' fitted loosely onto the rod 1, and a fastening tubular member 8' fitted loosely onto the rod 1, provided with a second reel leg receive portion 7 and fittable with the engaging receive portion 6'. The fastening tubular member 8' is designed to fasten the engaging receive portion 6' onto the rod 1 to adjust the fixing position of the reel leg and to fix the reel leg to the rod positively.

Reel leg fixing device for fishing rod

The handle for a fishing rod according to the present invention can improve the sense of fit of the fingers with respect to a reel-attaching portion when said portion is taken hold of. The handle comprises a reel-depositing surface of the reel-attaching portion expanded in both right and left directions to form a bulgy portion which makes the width of said surface larger than that of a reel-foot. In accordance with the reel-depositing surface, the finger-placing surface of the reel-attaching portion is formed to have a large circular surface area which fits well with the dispositions and the bending angle of the fingers. This configulation is very advantageous in giving an improved sense of fit of the fingers with respect to the finger-placing surface of the reel-attaching portion and also a comfortable and safe gripping performance. Further, as the reel-attaching portion is formed thin enough for the lower surface of the outer periphery of the fishing rod to be exposed on the lower portion thereof, a firm and stable gripping performance can be obtained; and further the vibration of the rod can be sensed directly, so a user doesn't miss any chance to operate his rod and reel when fish hit and can have a better fishing result.

Growing community of inventors

Tokyo, Japan

Takafumi Ozeki