Bridgestone Corporation

Yoichi Nishimuro

Kunio Machida

Hideharu Daifuku

Yoneji Kobayashi

Takahiro Suzuki

Taichi Kobayashi

Ryo Sakurai

Hiroyuki Anzai

Kanji Tanaka

Kazuya Murata

Hirotaka Yamazaki

Gaku Yakushiji

Norihiko Kaga

Toshiaki Arai

Munenori Iizuka

Hajime Tamura

Toshiyuki Osaki

Maki Masutani

Hare Tazawa

Shunsuke Hukatsu

Muneori Iizuka

An injection mold including a gate and a cavity, where a weld portion is formed inside the cavity by injecting molten resin containing reinforcing fibers from the gate into the cavity, the injection mold has a resin reservoir open to the cavity, and in a first cross section along an opening end surfaceS of the resin reservoirto the cavity, a distance CLD between a width center line CLof the resin reservoir and a width center line of the cavity, which is measured along a perpendicular line nof the width center line CLof the cavity, changes at least in part along the width center line of the cavity.

Injection mold, resin member, and method for producing resin product

A conductive endless belt is composed of elastomer polyester with a crystalline melting point at 210&#xb0; C. or more, or mainly composed of the elastomer polyester, and a thermoplastic polyester-based resin at 49 wt % or less, added a polymer ion conductive agent and a carbon black. The conductive endless belt. satisfies elastic modulus, creep resistance, bending durability, etc. and has decreased volume resistance variation and environment dependency while having superior durability, glossiness and setting performance that satisfying desired performance, without causing problems such as offset image.

Conductive endless belt

White color particles for display media used for an information display device, in which particles including at least the white color particles or liquid powders including at least the white color particles (W) are sealed between two substrates, at least one substrate being transparent, and, in which the particles or the liquid powders, to which an electrostatic field is applied, are made to move so as to display an image, is characterized in that the improvement is composed of resins made of methylpentene or cycloolefin and titanium oxide. Moreover, as a preferred embodiment, a white color reflectance is not less than 40%, and, the improvement has a heat resistance such that no fusion bond is detected after the white color particles are sprayed on a glass substrate heated at 120 &#xb0; C. and the heating state of the heated glass substrate is kept for 30 minutes. In this manner, it is possible to provide the white color particles for display media having an excellent white color reflectance, a high contrast on the display image and a sufficient heat resistance.

White color particles for display media and information display device utilizing them

An image display device, in which image display media are sealed between opposed substrates, at least one of two substrates being transparent, and in which the image display media, to which an electrostatic field is applied, are made to move so as to display an image. A construction of particles used as the image display media is improved (the first, second, fourth, fifth, sixth, eighth and ninth aspects of the invention), and a material of the particles used as the image display media is improved (the third, seventh and tenth aspects of the invention). Whiteness of the particles and a liquid powder using the particles is improved, particle agglutination is prevented, and the charge property is controlled. Moreover, durability is improved such that a contrast of the image display during a repetition display is not decreased. As a result, an excellent image display can be achieved.

Particle use for image display media, image display panel using the particles, and image display device

A bonded magnet featuring mechanical strength is obtained from a bonded magnet-forming composition comprising magnetic powder and a binder wherein the binder is based on highly crystalline polypropylene in one form or contains a modified polyolefin in another form. Also provided is a magnet roller comprising a magnet body (1) of bonded magnet configured into a roller shape and a shaft (2) associated therewith wherein at least the magnet body (1) is formed from the bonded magnet-forming composition.

Bonded magnet-forming composition and magnet roller using the same

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Kodaira, Japan

Yoichi Nishimuro