Nitto Kogyo Corporation

Okazaki, Japan

Nitto Kogyo Corporation

Okazaki, Japan

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Ando K.,Nitto Kogyo Corporation | Hirai H.,MItsubishi Electric | Sano Y.,Okayama University
Open Transport Phenomena Journal | Year: 2013

An exhaustive experimental investigation has been carried out for accurate determination of interstitial heat transfer coefficients of ceramic foams in forced convective flows. The single-blow method was used, in which, the fluid temperature varies with time and convective heat transfer becomes time-dependent. The method results in a transient and conjugate heat transfer phenomena between the foam and fluid. These transient temperature data are then compared with the theoretical results to obtain the corresponding interstitial heat transfer coefficients between the fluid and foam solid surface. The interstitial coefficients thus determined are compared against available sets of experimental data, so as to examine the consistency among the reported experimental data. © Ando et al.; Licensee Bentham Open.


Yang C.,University of Shizuoka | Yang C.,Huazhong University of Science and Technology | Ando K.,Nitto Kogyo Corporation | Nakayama A.,University of Shizuoka | Nakayama A.,Wuhan Polytechnic University
Transport in Porous Media | Year: 2011

A local thermal non-equilibrium model has been considered for the case of thermally fully developed flow within a constant heat flux tube filled with a porous medium. Exact temperature profiles for the fluid and solid phases are found after combining the two individual energy equations and then transforming them into a single ordinary differential equation with respect to the temperature difference between the solid phase and the wall subject to constant heat flux. The exact solutions for the case of metal-foam and air combination reveal that the local thermal equilibrium assumption may fail for the case of constant heat flux wall. The Nusselt number is presented as a function of the Peclet number, which shows a significant increase due to both high stagnant thermal conductivity and thermal dispersion resulting from the presence of the metal-foam. © 2011 Springer Science+Business Media B.V.


Kuwahara F.,University of Shizuoka | Yang C.,University of Shizuoka | Yang C.,Huazhong University of Science and Technology | Ando K.,Nitto Kogyo Corporation | And 2 more authors.
Journal of Heat Transfer | Year: 2011

An effective porosity concept has been introduced to account for the effects of tortuosity and thermal dispersion on the individual effective thermal conductivities of the solid and fluid phases in a fluid-saturated porous medium. Using this effective porosity concept, a thermal nonequilibrium model has been proposed to attack locally thermal nonequilibrium problems associated with convection within a fluid-saturated porous medium. Exact solutions are obtained, assuming a plug flow, for the two cases of thermally fully developed convective flows through a channel, namely, the case of isothermal hot and cold walls and the case of constant heat flux walls. These exact solutions for the cases of metal foam and air combination reveal that the local thermal equilibrium assumption may hold for the case of isothermal hot and cold walls, but may fail for the case of constant heat flux walls. © 2011 American Society of Mechanical Engineers.


Trademark
Nitto Kogyo Corporation | Date: 2012-02-17

electrical power distribution boards; electrical power panel boards; high-voltage power receiving equipment; electric control panels; electric terminal panels; switchboards; circuit breakers; electric switches; disconnectors; electrical terminal blocks; housings and mounting racks for electrical power distribution boards; housings and mounting racks for electrical power panel boards; housings and mounting racks for high-voltage power receiving equipment; housings and mounting racks for electric control panels; distribution boxes for electrical power; electric connection boxes; electric junction boxes; switch boxes; housings and mounting racks for switchboards; charging appliance for electric vehicles; housings and mounting racks for charging appliance for electric vehicles; electronic control device and remote surveillance device for use in measuring, controlling and monitoring electric power, voltage, electric current and temperature; remote monitoring system for monitoring electric load current of power distribution panels; housings and mounting racks for electric monitoring panels; housings and mounting racks for broadcasting equipment; housings and mounting racks for telecommunication signal distribution; housings and mounting racks for telecommunications transmitters; housings and mounting racks for television broadcasting apparatus; housings and mounting racks for telephone apparatus; telecommunication wiring boards; housings and mounting racks for electronic machines and apparatus, namely, computers; housings and mounting racks for electronic machines and apparatus, namely, computer servers; computer programs for selecting housings and mounting racks for broadcasting equipment, telecommunication devices and apparatus for LAN system; computer programs for selecting electrical power panel boards; computer programs for selecting cooling apparatus used in conjunction with housings and mounting racks for telecommunication devices and apparatus; computer programs for selecting cooling apparatus for electrical power distribution boards and electric control panels; electronic advertisement and messaging display unit with multi-networking (TCP/IP) capabilities, remote connectivity and data regeneration capabilities from internal memory; housings and mounting racks for electronic advertisement and messaging display units; housings for electronic circuits; housings and mounting racks for measuring and testing apparatus and instruments, namely, devices for use in measuring and testing electric current, voltage, electric power and abnormal signals of both electric installations and industrial and commercial plant manufacturing machines; boxes for wattmeters; device for measuring electric power, voltage and electric current of both electric installations and industrial and commercial plant manufacturing machines; electronic alarm panels for warning of abnormalities in electric systems; ducting for electric cables; junction boxes; junction boxes for optical fibers; and electric wires and cables; control panels in the nature of panel units for air conditioning apparatus that controls the flow of cold air and exhaust heat. heat exchangers not being parts of machines; cooling units for industrial purposes; air conditioning apparatus for industrial purposes; peltier cooling apparatus; heating units for industrial purposes; industrial dehumidifiers; air conditioning apparatus for supplying cooled air to housings and racks for electric apparatus; and panel units for air conditioning apparatus that controls the flow of cold air and exhaust heat sold as part of air conditioning apparatus; panel units for air conditioning apparatus that controls the flow of cold air and exhaust heat being structural parts for conditioning apparatus; ventilating exhaust fans; ventilating fans for commercial or industrial use; ventilating louvers; and air conditioning fans for raised floor.


Trademark
Nitto Kogyo Corporation | Date: 2012-02-17

electrical power distribution boards; electrical power panel boards; high-voltage power receiving equipment; electric control panels; electric terminal panels; switchboards; circuit breakers; electric switches; disconnectors; electrical terminal blocks; housings and mounting racks for electrical power distribution boards; housings and mounting racks for electrical power panel boards; housings and mounting racks for high-voltage power receiving equipment; housings and mounting racks for electric control panels; distribution boxes for electrical power; electric connection boxes; electric junction boxes; switch boxes; housings and mounting racks for switchboards; charging appliance for electric vehicles; housings and mounting racks for charging appliance for electric vehicles; electronic control device and remote surveillance device for use in measuring, controlling and monitoring electric power, voltage, electric current and temperature; remote monitoring system for monitoring electric load current of power distribution panels; housings and mounting racks for electric monitoring panels; housings and mounting racks for broadcasting equipment; housings and mounting racks for telecommunication signal distribution; housings and mounting racks for telecommunications transmitters; housings and mounting racks for television broadcasting apparatus; housings and mounting racks for telephone apparatus; telecommunication wiring boards; housings and mounting racks for electronic machines and apparatus, namely, computers; housings and mounting racks for electronic machines and apparatus, namely, computer servers; computer programs for selecting housings and mounting racks for broadcasting equipment, telecommunication devices and apparatus for LAN system; computer programs for selecting electrical power panel boards; computer programs for selecting cooling apparatus used in conjunction with housings and mounting racks for telecommunication devices and apparatus; computer programs for selecting cooling apparatus for electrical power distribution boards and electric control panels; electronic advertisement and messaging display unit with multi-networking (TCP/IP) capabilities, remote connectivity and data regeneration capabilities from internal memory; housings and mounting racks for electronic advertisement and messaging display units; housings for electronic circuits; housings and mounting racks for measuring and testing apparatus and instruments, namely, devices for use in measuring and testing electric current, voltage, electric power and abnormal signals of both electric installations and industrial and commercial plant manufacturing machines; boxes for wattmeters; device for measuring electric power, voltage and electric current of both electric installations and industrial and commercial plant manufacturing machines; electronic alarm panels for warning of abnormalities in electric systems; ducting for electric cables; junction boxes; junction boxes for optical fibers; and electric wires and cables; control panels in the nature of panel units for air conditioning apparatus that controls the flow of cold air and exhaust heat. heat exchangers not being parts of machines; cooling units for industrial purposes; air conditioning apparatus for industrial purposes; peltier cooling apparatus; heating units for industrial purposes; industrial dehumidifiers; air conditioning apparatus for supplying cooled air to housings and racks for electric apparatus; and panel units for air conditioning apparatus that controls the flow of cold air and exhaust heat sold as part of air conditioning apparatus; panel units for air conditioning apparatus that controls the flow of cold air and exhaust heat being structural parts for conditioning apparatus; ventilating exhaust fans; ventilating fans for commercial or industrial use; ventilating louvers; and air conditioning fans for raised floor.


Takigawa Y.,Aichi Institute of Technology | Yukita K.,Aichi Institute of Technology | Goto Y.,Aichi Institute of Technology | Ichiyanagi K.,Aichi Institute of Technology | Miyamoto A.,Nitto Kogyo Co.
INTELEC, International Telecommunications Energy Conference (Proceedings) | Year: 2016

When a emergency occurs in the solar power generating, to confirm that there is a possibility of arcing. As long as there is solar radiation, solar power generation keeps supplying the electric power. Therefore if the arc occurs, there is a risk of fire. However, protection device for protecting a direct current system side was not present. We have developed a protective device for performing emergency shutdown to detect the abnormal state of the solar power. In this paper, developed protection instrument was tested actually, and it was confirmed to insulate photovoltaic generation from an arc breakdown. © 2015 IEEE.


Patent
Nitto Kogyo Corporation and Kabushiki Kaisha Toyota Jidoshokki | Date: 2012-02-16

An electric vehicle charger includes: a first winder unit and a second winder unit for winding and holding a charging cable having a charging connector at its end portion; and a body unit for arranges the first winder unit and the second winder unit with the distance between the first winder unit and the second winder unit set longer than the diameter of the charging cable, wherein the charging cable passes between the first winder unit and the second winder unit, and the charging cable is fixed before passing between the first winder unit and the second winder unit.


Patent
Kabushiki Kaisha Toyota Jidoshokki and Nitto Kogyo Corporation | Date: 2012-12-25

A vehicle charging system provided with a control unit 1 to control power supply for a plurality of vehicle chargers connected to a respective plurality of vehicles, the system includes: a connection detection section detecting connection of the vehicle; a charge suppression section carrying out temporary charge suppression to an already connected vehicle in response to detection of a new vehicle by the connection detection section; a new vehicle charging current measurement section carrying out measurement of a charging current that flows in the new vehicle by carrying out temporary test current application to the new vehicle after charge suppression of the already connected vehicle; and a new vehicle charge availability decision section deciding availability of continuous charging to the new vehicle using the charging current value that flows in the new vehicle measured in the new vehicle charging current measurement section.


Patent
Toyota Motor Corporation, Kabushiki Kaisha Toyota Jidoshokki and Nitto Kogyo Corporation | Date: 2013-11-06

Provided is a charging apparatus for vehicles which charges a vehicle provided with a charging control circuit via a charging cable, comprising a charging control device which controls electrical charging to the vehicle by transmitting a charging control signal to the charging control circuit on the vehicle side, a charging control signal transmission restricting device which restricts transmission of the charging control signal, and a resetting device which forcibly resets the charging control signal when said restriction on transmission of the charging control signal is withdrawn.


Patent
Toyota Motor Corporation, Nitto Kogyo Corporation and Kabushiki Kaisha Toyota Jidoshokki | Date: 2011-12-26

Provided is a charging apparatus for vehicles which charges a vehicle provided with a charging control circuit via a charging cable, comprising a charging control device which controls electrical charging to the vehicle by transmitting a charging control signal to the charging control circuit on the vehicle side, a charging control signal transmission restricting device which restricts transmission of the charging control signal, and a resetting device which forcibly resets the charging control signal when said restriction on transmission of the charging control signal is withdrawn.

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