Jfe Steel Corporation

Astellas Pharma Gmbh

Fujisawa Pharmaceutical Company, Ltd.

Nkk Corporation

Cygames, Inc.

Nippon Yusen Kabushiki Kaisha

Jfs Steel Corporation

Jfe Techno-research Corporation

Kentaro Sato

Takayuki Futatsuka

Tomohiro Sakaidani

Shinsuke Komine

Tatsuya Nakagaito

Jun Maeda

Takahiro Ishii

Takehiko Ohkawa

Takashi Sugane

Akio Kakefuda

Takatoshi Kanayama

Tatsuhisa Takahashi

Chikashi Saitoh

Hideaki Kobiki

Jotaro Suzuki

Takashi Iwama

Fumie Narazaki

Chisato Kanai

Teruo Kyoto Oku

Yoshiyasu Kawasaki

Yoshihiko Ono

Katsutoshi Takashima

Natsuko Kayakiri

Shimpei Yoshioka

Masahiro Neya

Hitoshi Yamazaki

Kazuhiko Ohne

Ichiro Shima

Naoki Ishibashi

Kenichiro Imamura

Kayo Tokieda

Makoto Inoue

Hirokazu Tanaka

Yoshimasa Funakawa

Yuji Yamasaki

Yasunobu Nagataki

Yoshito Abe

Yuki Toji

Jun Kato

Hiroyuki Setoi

Takanobu Saito

Tsuyoshi Shiozaki

Eiichi Shiraishi

Hitoshi Sawada

Shinichi Miura

Fusato Kitano

Akira Gamou

Masahiro Iwabuchi

Tatsuya Zenkoh

Mitsuaki Okumura

Takashi Taniguchi

Akihide Yoshitake

Yoshihiko Maeda

Yuta Ono

Muneka Iwasawa

Mitsuaki Uesugi

Youiti Komatu

Kazunari Yoshitomi

Yukiko Hata

Shinji Sakurai

Shohei Shinozuka

Yuhei Akiyama

Riku Takemura

A galvanized steel sheet including a steel sheet having a chemical composition with an equivalent carbon content Ceq of 0.60% or more and less than 0.85%, and a specified steel microstructure; and a galvanized layer on a surface of the steel sheet. The retained austenite has a solute C content of 0.6% or more by mass, and retained austenite grains with an aspect ratio of less than 2.0 constitute 50% or more of all retained austenite grains. In 90-degree bending at a curvature radius/thickness ratio of 4.2 in a rolling (L) direction with respect to an axis extending in a width (C) direction, an L cross section in a 0- to 50-μm region from a surface of the steel sheet on a compression side has a number density of voids of 1500/mmor less, and the galvanized steel sheet has a tensile strength of 980 MPa or more.

Galvanized steel sheet, member, and method for producing them

A strain state of a bending outside surface of a test specimen is photographed by use of a camera without falling out of focus during a bending test. A bending test facility for a metal sheet material for an automobile body includes a supporting member that supports two supported portions of a flat test specimen formed of the metal sheet material for an automobile body, a punch for performing a bending test in which an area between the two supported portions of the test specimen is pressed from an opposite side to the supporting member so that the test specimen is bent to be deformed, and a camera for photographing, from the side of the supporting member, a bending outside surface of the test specimen during the bending test using the punch, with relative positions of the punch and the camera during the bending test being fixed.

Bending test facility and bending test method for metal sheet material for automobile body and bending performance evaluation method using the bending test facility

A non-transitory computer readable medium stores a program causing a computer to execute: saving, among a plurality of character IDs associated with a player ID, a character ID selected by a player operation in a party saving area associated with the player ID; executing a prescribed game by using the character ID stored in the party saving area; creating, on the basis of the fact that the prescribed game has been terminated, game result information including the character ID used when executing the prescribed game; sharing at least one of text information and the game result information between at least two players on the basis of the player operation; displaying the shared text information and game result information; and saving, on the basis of a prescribed operation on the displayed game result information, the character ID included in the game result information in the party saving area associated with the player ID of a player who has performed the operation.

Non-transitory computer readable medium, information processing method, game device, and information processing system for party creation

A collision performance evaluation test with few variations in test results with high accuracy in which a complicated phenomenon that actually occurs can be reproduced in a simple manner by considering the history of deformation in both the press forming and a collision. A collision performance evaluation test method for a metal sheet material for an automobile body is characterized in that a press working apparatus first forms a flat test specimen made of a metal sheet material to be tested into a V shape by primary bending, a bending test apparatus then deforms, by secondary bending, the test specimen formed by the primary bending in a direction intersecting with the primary bending direction, and a bending load and a bending stroke for the test specimen during the secondary bending deformation are recorded and evaluated.

Method and facility for collision performance evaluation test for metal sheet material for automobile body

A high strength steel sheet has a yield-point elongation of 1% or greater and a tensile strength of 980 MPa or greater. The high strength steel sheet has a specific chemical composition and microstructure. A ratio of retained austenite grains adjoining a retained austenite grain having a different crystal orientation to total retained austenite grains is 0.60 or greater, the ferrite has an average grain size of 5.0 μm or less, and the retained austenite has an average grain size of 2.0 μm or less. A value obtained by dividing a volume fraction Vγa by a volume fraction Vγb is 0.40 or greater, where the volume fraction Vγa is a volume fraction of retained austenite in a fractured portion of a tensile test specimen after a warm tensile test at 150° C., and the volume fraction Vγb is a volume fraction of retained austenite before the warm tensile test at 150° C.

High strength steel sheet, impact absorbing member, and method for manufacturing high strength steel sheet

A galvanized steel sheet includes: a steel sheet having a chemical composition satisfying an equivalent carbon content Ceq of 0.35% or more and less than 0.60%, and a specified steel microstructure; and a galvanized layer on a surface of the steel sheet. The retained austenite has a solute C content of 0.6% or more by mass, and retained austenite grains with an aspect ratio of less than 2.0 constitute 50% or more of all retained austenite grains. In 90-degree bending at a curvature radius/thickness ratio of 4.2 in a rolling (L) direction with respect to an axis extending in a width (C) direction, an L cross section in a 0 to 50 μm region from a surface of the steel sheet on a compression side has a number density of voids of 1000/mmor less, and the galvanized steel sheet has a tensile strength of 590 MPa or more.

An object is to closely observe, by means of images of a camera having high performance specifications, changes in a structure due to heating or cooling of the structure to a temperature beyond a service temperature limit of the camera having high performance specifications and returning from that temperature to room temperature. A structure observation device includes: a camera case of a rectangular three-dimensional shape, having a glass window of heat-resistant and/or cold-resistant glass on at least one side of the three-dimensional shape; heat insulating walls covering the camera case except for the glass window; a fluid supply port and a fluid discharge port through which a cooling or warming fluid is circulated into; and a camera that is disposed inside the camera case and captures a still image or a moving image through the glass window and externally outputs or internally stores data of the captured image.

Structure observation device and observation method

A translation control and rotation control mechanism support jig for supporting a front end portion of an automobile body part includes a pair of support members, a rotary box having an L-shaped plate, a rotary shaft pin, a compression pin, and a connection plate. The translation control mechanism includes a support plate, a slide guide, an automobile body part securing disk, a translation plate, and a compression pin. Energy-absorbing members are disposed in an arcuate guide groove on a side surface of the rotary box and a linear guide groove arranged on the support plate or the translation plate. A collision punch collides at a test speed with the L-shaped plate of the rotary box. The compression pin deforms the energy-absorbing members to apply torque opposite to a rotation direction and a reaction force in an opposite direction to a translation direction.

Collision performance evaluation test method and apparatus for automobile body part

A collision resistance performance of a structural member is effectively improved while suppressing an unnecessary increase in mass of the structural member. The structural member includes a hollow member and a tension member. The hollow member forms a closed cross-sectional shape by a top sheet portion, a pair of sidewall portions each continuous to each side of the top sheet portion in a width direction, and a bottom sheet portion arranged to face the top sheet portion. The tension member is formed by a metal sheet extending along the width direction of the top sheet portion and being thinner than the sheet thickness of the hollow member, and connects inner surfaces of the pair of sidewall portions facing each other to each other to restrain the distance between the pair of sidewall portions from increasing.

Structural member for vehicle

A steel sheet including a chemical composition satisfying an equivalent carbon content of 0.60% or more and less than 0.85%, and a steel microstructure with an area fraction of ferrite: less than 40%, tempered martensite and bainite: 40% or more in total, retained austenite: 3% to 15%, and ferrite, tempered martensite, bainite, and retained austenite: 93% or more in total. A 90-degree bending at a curvature radius/thickness ratio of 4.2 in a rolling (L) direction with respect to an axis extending in a width (C) direction causes a change of 0.40 or more in (a grain size in a thickness direction)/(a grain size in a direction perpendicular to the thickness) of the tempered martensite in an L cross section in a 0- to 50-μm region from a surface of the steel sheet on a compression side. The steel sheet has a tensile strength of 980 MPa or more.

Steel sheet, member, and method for producing them

A side crash test apparatus uses a crash test structure including a center pillar, a roof-rail simulated part, and a rocker simulated part, and includes: a striker; a roof rail support; and a rocker support. The rocker support includes a rocker-rotation braking mechanism configured to restrain translation of the rocker simulated part, and support the rocker simulated part to be rotatable about an axis thereof and allow braking of the rotation. The rocker-rotation braking mechanism includes a rocker-rotation support member configured to rotate about the axis together with the rocker simulated part, a rocker-rotation shaft support configured to support a rotation center of the rocker-rotation support member, a rocker-rotation braking plate extended by rotation of the rocker-rotation support member while braking the rotation when the striker crashes into the center pillar, and a rocker rotation braking plate fixed portion configured to fix another end side of the rocker-rotation braking plate.

Side crash test apparatus and side crash test condition determination method for center pillar of automobile

A hot-pressed member having excellent bending collapsibility, a method for manufacturing the same, and a method for manufacturing a steel sheet for the hot-pressed member. The hot-pressed member includes a steel sheet as a base material, the steel sheet having a specified chemical composition. The hot-pressed member has a microstructure in which a martensite microstructure is present in a volume fraction of 70% or greater, and a number density of inclusions having a longest diameter of 25 &#x3bc;m or greater is 0.02/mmor less. The hot-pressed member has a tensile strength of 1.8 GPa or greater.

Hot-pressed member, method for manufacturing the same, and method for manufacturing steel sheet for hot-pressed member

The high-strength hot-dip galvanized steel sheet, which includes a hot-dip galvanized coating layer on a surface of the steel sheet, has a component composition containing, in mass %, C: 0.07% to 0.20%, Si: 0.1% to 2.0%, Mn: 2.0% to 3.5%, P: 0.05% or less, S: 0.05% or less, and sol. Al: 0.005% to 0.1%, with the balance being Fe and incidental impurities; and has a steel microstructure containing, in area fraction, 60% or less of ferrite, 40% or more of tempered martensite, and 10% or less of fresh martensite and having a void number density of 1,500/mmor less in a bent portion in the VDA bending test.

High-strength hot-dip galvanized steel sheet and manufacturing method therefor

An object of the present invention is to provide a collision performance evaluation test method and apparatus that achieve a part collision test that satisfactorily reproduces the state of an actual automobile body collision, allow the test to be performed in a high-speed region, and increase the economic rationality of the test. A motion control mechanism formed of a translation control mechanism or a rotation control mechanism is provided in at least one of a support jig that supports one end portion of an automobile body part and a support jig that supports the other end portion of the automobile body part. The motion control mechanism includes a fixed member fixed to a motion restriction member in the support jig and a movable member so connected to the fixed member as to be movable and fixed to the one end portion or the other end portion of the automobile body part. A compression member protruding from one of the fixed member and the movable member toward the other is fit into a guide portion formed in the other one of the fixed member and the movable member so as to extend in the movable direction of the movable member and disposed with an energy-absorbing member therein. The motion of the movable member with respect to the fixed member deforms the energy-absorbing member to apply reaction force in the direction opposite the direction of the motion to the movable member.

Collision performance evaluation test method and collision performance evaluation test apparatus for automobile body part

Reception unit receives data indicating water temperature of a body of water through which a vessel voyages, vessel speed, and a period for which those values are maintained. From storage unit, index value acquisition unit reads out a decrease amount of anti-fouling paint corresponding to the water temperature and vessel speed received by reception unit. Index value specification unit specifies a decrease amount of anti-fouling paint in the period by multiplying the length of time of the period received by reception unit by the decrease amount read out by index value acquisition unit. Remaining amount acquisition unit integrates the decrease amounts of the anti-fouling paint specified by index value specification unit at the time of coating with the anti-fouling paint and onward. Remaining amount specification unit specifies a current paint film thickness of the anti-fouling paint by subtracting the decrease amount of the anti-fouling paint integrated by remaining amount acquisition unit from the paint film thickness at the time of coating with the anti-fouling paint.

Apparatus for managing vessel fouling risk, program, and recording medium

Growing community of inventors

Tokyo, Japan

Kentaro Sato