Showa Denko K.k.

Honda Motor Co., Ltd.

Yoshimitsu Ishihara

Shintaro Inazawa

Takashi Monoi

Mina Onishi

Hidenobu Torigoe

Masakazu Yamamoto

Yukihiko Azuma

Hiroki Sato

Hirofumi Inoue

Daisuke Yamamoto

Fumiaki Naka

Yasuhiko Kitano

Shingo Maeda

Tsuyoshi Nakamura

Takayuki Kanou

Shigeki Saito

Kenichi Chida

Mitsufumi Okada

Naoharu Wakida

Yuta Rokugawa

An upper die of a forming apparatus includes a first curved portion and a second curved portion between a second concave section and an upper holding surface. The first curved portion is curved in a direction away from the upper die. The second curved portion is curved toward the upper die. A blank holding surface of a blank holder holds a blank between the blank holding surface and the upper holding surface of the upper die. The blank holding surface faces the second curved portion. The blank holding surface includes a blank curved surface recessed along the second curved portion.

Forming apparatus and forming method using forming apparatus

The present invention provides an electrostatic discharge protector capable of protecting electronic circuit boards having various designs from electrostatic discharge freely, simply and easily. The electrostatic discharge protector of the present invention comprises at least three conductive members containing one pair of electrodes and the conductive members other than the electrodes, the conductive members are each disposed in such a way that the gap between one conductive member and the other conductive member has a width of 0.1 to 10 &#x3bc;m, an insulating member is disposed and embedded in at least one of gaps having a width of 0.1 to 10 &#x3bc;m which are adjacent to each conductive member and one electrode is connected to the other electrode paired with the one electrode through the insulating member and the conductive members other than electrodes.

Electrostatic discharge protector

A discharge gap filling composition which includes metal powders (A) and a binder component (B), wherein surfaces of primary particles of the metal powders (A) are coated with a film composed of a metal oxide, and the primary particles of the metal powders (A) have a flake form. An electrostatic discharge protector is obtained using the composition.

Discharge gap filling composition and electrostatic discharge protector

A hot bulge forming die apparatus forms a preheated tubular materialinto a tubular material. The hot bulge forming die apparatus includes a lower dieB having a cavity surfaceB and an upper dieB having a cavity surfaceB. An elongated holeis formed in a circumferential edge portionof the lower dieB so as to extend outwards, and a projectionis formed on a circumferential edge portionof the upper dieB so as to fit in the elongated hole. When the dies are clamped together, the projectionformed on the circumferential edge portionof the upper dieB fits in the elongated holeformed in the circumferential edge portionof the lower dieB.

Hot bulge forming die apparatus

The present invention provides an electrostatic discharge protector capable of taking measures for electrostatic discharge against electronic wiring boards having various designs freely, simply and easily, having excellent accuracy of regulating an operating voltage and capable of being downsized and decreased on its cost, and also provides a resin composition for a discharge gap capable of preparing the electrostatic discharge protector. The resin composition for filling a discharge gap of an electrostatic discharge protector comprises a resin having a urethane structure represented by the formula (1): wherein plural R's are each independently an alkylene group of 1 to 18 carbon atoms, X is a bivalent organic group and m and n are each independently an integer of 1 to 20. The electrostatic discharge protector is obtainable by filling the discharge gap with the resin composition. The discharge gap has a width of 2 to 10 &#x3bc;m.

Resin composition for filling discharge gap and electrostatic discharge protector

A die set for press-forming a blank of thin metallic sheet. The die set has a punch and a blank holder. The blank holder has a first bead for restraining an edge of the blank with a constant force. The first bead is disposed further to an inside than a second bead for restraining the edge of the blank with a force that varies during pressing of the blank.

Press forming die set and method

Process for preparing ethylene polymer and catalyst used therefor

Ethylenic polymers and process for the production thereof

A process for the production of ethylenic polymers is disclosed in which an ethylenic monomer is polymerized in the presence of a catalyst comprising a chromium compound, an alumoxane and an organometallic alkoxide and/or organometallic siloxide and a carrier supporting thereon these compounds. The resultant polymer has a balanced proportion of rigidity and environmental stress cracking resistance (ESCR) and an excellent moldability property.

Process for the production of ethylenic polymers

Growing community of inventors

Tokyo, Japan

Yoshimitsu Ishihara