3M Innovative Properties Company

Nippon Steel Sumitomo Metal Corporation

Nissan Motor Company Limited

Nippon Steel Corporation

Hideki Minami

Junichi Nakagawa

Osamu Kondo

Takahiro Fujimoto

Yuji Hiroshige

Shingo Abe

Jun Fujita

Osamu Goto

Yoshiyuki Shimokawa

Takashi Yamasaki

Norihisa Watanabe

Shota Ito

Daisuke Shinagawa

Hiroaki Morimura

Shunichiro Kanai

Masanori Nakae

Hiroki Sakai

Akinori Takeshita

Yasunori Tani

This soundproof wheel includes a soundproofing device () which is mounted to an inner peripheral surface () of a rim section () of the wheel. The soundproofing device () is provided with: a fixing ring () which is fitted in and fixed to a groove () formed in the inner peripheral surface (); a first elastic body section (A) which is stuck to an outer peripheral surface () of the fixing ring (), is disposed within the groove (), and has a plurality of first elastic body pieces; an additional mass section () which is stuck to a side of the first elastic body section (A) opposite to the fixing ring (), is disposed within the groove (), and has a plurality of additional mass pieces; and a second elastic body section (B) which is stuck to a side of the additional mass section () opposite to the first elastic body section (A), is disposed within the groove (), and has a plurality of second elastic body pieces. The soundproofing device () includes a plurality of dynamic vibration absorbers. Each of the dynamic vibration absorbers has first and second elastic body pieces and an additional mass piece. This soundproof wheel allows for significant reduction in wheel vibration noise and is highly durable.

Soundproof wheel for railway vehicle

A soundproof wheel includes a soundproofing device which is mounted to an inner peripheral surface of a rim section of the wheel. The soundproofing device is provided with: a fixing ring which is fitted in and fixed to a groove formed in the inner peripheral surface of the rim section; an elastic body section which is adhered to an outer peripheral surface of the fixing ring, is disposed within the groove, and has a plurality of elastic body pieces; and an additional mass section which is adhered to an opposite side of the elastic body section with respect to the fixing ring, is disposed within the groove, and has a plurality of additional mass pieces. The soundproofing device includes a plurality of dynamic vibration absorbers, each having an elastic body piece and an additional mass piece. This soundproof wheel allows for reduction in wheel vibration noise and is highly durable.

The present disclosure provides a thermoelectric material which can be formed into a flexible and thin type material. The thermoelectric material is a composite that includes a binder resin, thermoelectric material particles dispersed in the binder resin, and fine metal particles supported on a surface of the thermoelectric material particles.

Composite thermoelectric material and method for producing the same

An electrically conductive composite material that includes an electrically conductive polymer, and at least one metal nanoparticle coated with a protective agent, wherein said protective agent includes a compound having a first part that has at least part of the molecular backbone of said electrically conductive polymer and a second part that interacts with said at least one metal nanoparticle.

Electrically conductive nanocomposite material and thermoelectric device comprising the material

An organic electroluminescence device having a substrate on which a first electrode is provided on the surface and including at least one projection. A functional layer is provided so as to cover the projection, and a second electrode is formed on that functional layer. A cross-sectional contour of an end of a surface of the projection contacting the functional layer is a shape satisfying a predetermined relationship.

Organic electroluminescence device and method of production of same

A power-unit mounting structure for mounting a power unit such as an internal combustion engine on the body structure of an automotive vehicle, comprising a plurality of shock and vibration dampening units each comprising a resilient insulator block securely connected between the body structures of the vehicle and the power unit, wherein the shock and vibration dampening units include a pair of shock and vibration dampening units, the respective insulator blocks of which are disposed in such a manner as to produce shear stresses in directions parallel with each other and inclined with respect to the vehicle body structure at a predetermined angle of, preferably, 45 degrees to vertical and horizontal planes.

Power-unit mounting structure for automotive vehicle

Growing community of inventors

Tokyo, Japan

Hideki Minami