Nagaoka, Japan

Nagaoka University of Technology , abbreviated as Nagaoka Gidai, is a national technology university founded in 1976 in Nagaoka, Niigata, Japan. One of the only two Universities of Technology, a form of universities in Japan, the other being Toyohashi University of Technology in Aichi. Many students from colleges of technology, a 5-year college called "kosen" in Japan have enrolled. The university requires 4th year students to spend up to five months on-the-job experience in private enterprises, government agencies, and elsewhere. Having a high employment rate in the national universities in Japan. Wikipedia.


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Patent
Idemitsu Kosan Co. and Nagaoka University of Technology | Date: 2017-02-08

An electrical discharge machining oil composition of the invention includes an organic acid metal salt and a base oil, in which the organic acid metal salt is an organic acid salt of a metal having an electronegativity on Pauling scale of 2 or less, and the present composition has a volume resistivity at 80 degrees C of 2 10^(-5)Tm or more and a kinematic viscosity at 40 degrees C in a range from 0.5 mm^(2)/s to 10 mm^(2)/s.


Patent
Nagaoka University of Technology and LINTEC Corporation | Date: 2016-01-27

A thermoelectric conversion element that can efficiently make a temperature difference across a thermoelectric conversion material is provided. In the thermoelectric conversion element, on a first surface of a thermoelectric conversion module comprising a P-type thermoelectric element, an N-type thermoelectric element, and an electrode, a thermally conductive resin layer A and a thermally conductive resin layer B having a lower thermal conductivity than the thermally conductive resin layer A are provided in an alternating manner so as to be in direct contact with the first surface, and on a second surface on the opposite side of the first surface of the thermoelectric conversion module, a thermally conductive resin layer a and a thermally conductive resin layer b having a lower thermal conductivity than the thermally conductive resin layer a are provided in an alternating manner so as to be in direct contact with the second surface.


Patent
Nagaoka University of Technology and INPEX Corporation | Date: 2014-03-14

An object is to provide a mutant of a cellulase-producing microorganism which produces a cellulase capable of preferentially producing a cello-oligosaccharide during the selective production of the cello-oligosaccharide through enzymolysis of a cellulosic material in the presence of the cellulase, a method for producing the cellulase and a method for producing a cello-oligosaccharide using the cellulase. The present invention relates to a mutant of a cellulase-producing microorganism, in which cellobiohydrolase and -glucosidase genes are disrupted.


Patent
Nagaoka University of Technology and INPEX Corporation | Date: 2016-01-20

An object is to provide a mutant of a cellulase-producing microorganism which produces a cellulase capable of preferentially producing a cello-oligosaccharide during the selective production of the cello-oligosaccharide through enzymolysis of a cellulosic material in the presence of the cellulase, a method for producing the cellulase and a method for producing a cello-oligosaccharide using the cellulase. The present invention relates to a mutant of a cellulase-producing microorganism, in which cellobiohydrolase and -glucosidase genes are disrupted.


Patent
Denki Kagaku Kogyo Kabushiki Kaisha and Nagaoka University of Technology | Date: 2015-02-18

Provided are a vulcanizate of a chloroprene rubber composition containing carbon black that generates a smaller amount of heat when used and a method for producing the same by a simpler and more convenient method. First, an unvulcanized rubber composition at least containing a chloroprene polymer and carbon black is vulcanization-molded, to give a semivulcanized molded article having a cure characteristic value, as determined by the method specified in JIS K6300-2: 2001, in the range of t_(10) to t_(80). Then, the semivulcanized molded article obtained by semivulcanized film-forming step is additionally vulcanized in the state as it is deformed entirely and the deformation is removed, to give vulcanizate in a desired shape.


Patent
Nagaoka University of Technology and Nabtesco Corporation | Date: 2015-09-01

This application discloses a control device for controlling a motor configured to drive an oscillatory cyclo-speed reducer including an oscillatory gear portion formed with at least one hole at an eccentric position. The control device includes an angle acquirer for acquiring input information about an input rotational angle indicating a rotational angle of the motor, an estimator for estimating an angular error between the input rotational angle and an output rotational angle indicating a rotational angle of the oscillatory cyclo-speed reducer based on a quantity of the hole(s) and a corrector for determining a compensation current value in correspondence to the angular error and setting a magnitude of a current to be supplied to the motor by correcting a command current value using the compensation current value.


Patent
Daihatsu Motor Co. and Nagaoka University of Technology | Date: 2016-08-17

Provided are a power generation element including a power generation material indicated by the following general formula (1), and a power generation system using the power generation element: (A_(x)B_(1-x))NbO_(3) (1), where A and B are mutually different and represent at least one element selected from rare-earth elements, alkaline-earth metals, alkaline metals, Cd, and Bi, and x represents an atomic proportion in a numerical range of 0 < x 1. The configuration provides a power generation material that enables sufficient power generation performance even in a high temperature range, a power generation element including the power generation material, and a power generation system using the power generation element.


Patent
Daihatsu Motor Co. and Nagaoka University of Technology | Date: 2015-09-09

A power-generating system 1 includes a heat source 2 which is able to produce temporal temperature variation; a first device 3 which is able to produce temporal temperature variation based on the temperature change of the heat source 2 and in which polarization occurs; a second device 4 for taking out a net generating power from the first device 3; a temperature sensor 8 that detects the temperature of the first device 3; a voltage application device 9 that applies a voltage to the first device 3; and a control unit 10 for activating the voltage application device 9 on detecting an increase in temperature of the first device 3 and for stopping the voltage application device 9 on detecting a decrease in temperature of the first device 3 by the temperature sensor 8.


Yu H.,Nagaoka University of Technology | Ikeda T.,Tokyo Institute of Technology
Advanced Materials | Year: 2011

Coupling photochromic molecules with liquid crystalline (LC) materials enables one to reversibly photocontrol unique LC features such as phase transition, photoalignment, and molecular cooperative motion. LC elastomers show photomechanical and photomobile properties, directly converting light energy into mechanical energy. In well-defined LC block copolymers, regular patternings of nanostructures in macroscopic scales are fabricated by photo-manipulation of LC actuators. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Tamayama Y.,Nagaoka University of Technology
Optics Letters | Year: 2015

The Brewster effect is extended to single-layer metafilms. In contrast to bulk media, the Brewster effect in metafilms can be realized by tailoring the radiation pattern of a distribution of meta-atoms rather than the effective medium parameters. A metafilm composed of bi-anisotropic split-ring resonators is designed based on the theory, and its characteristics are numerically analyzed. The simulation demonstrates that there exists a condition for which the polarization of the reflected wave becomes independent of the incident polarization at a particular angle of incidence. © 2015 Optical Society of America.

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