Nagoya, Japan

The Nagoya Institute of Technology , or less commonly Nitech, is a public highest-level educational institution of science and technology located in Nagoya, Japan. Nagoya Institute of Technology was founded on 1905 as Nagoya Higher Technical School, renamed Nagoya College of Technology in 1944 then merged under the new educational system with the Aichi Prefectural College of Technology to be refounded as Nagoya Institute of Technology in 1949. Finally in 2004 it was refounded as Nagoya University Corporation Nagoya Institute of Technology. Wikipedia.


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Patent
Ngk Insulators and Nagoya Institute of Technology | Date: 2016-10-28

A method of producing hexagonal plate-like zinc oxide particles having a sharp particle size distribution (i.e., a relatively uniform particle size) at a high weight yield and a high percent yield is provided. The method of producing hexagonal plate-like zinc oxide particles of the present invention comprises mixing by stirring an aqueous hexamethylenetetramine (HMT) solution, a solution of an anionic surfactant in a water-insoluble organic solvent, and optionally water to form a microemulsion containing an aqueous phase of an aqueous hexamethylenetetramine solution having a molar concentration of 0.05 M or more; dropwise adding an aqueous zinc salt solution to the microemulsion; and heating the microemulsion containing the aqueous zinc salt solution to a reaction temperature of 80 C. or more without using any autoclave to form hexagonal plate-like zinc oxide particles.


Patent
Nagoya Institute of Technology and Ngk Insulators | Date: 2016-11-09

There is provided a production method which enables stable formation of a p-type zinc oxide film and also is suitable for enlarging the area of the film. The method for producing a p-type zinc oxide film according to the present invention comprises the steps of: placing a target containing a zinc source and a substrate in a gas atmosphere containing a nitrogen source and an oxygen source and having a gas pressure of 0.1 Pa to 100 Pa, and exposing the target to arc discharge, thereby forming a precursor film containing zinc and oxygen on the substrate; and annealing the precursor film in an oxidizing atmosphere, thereby forming a p-type zinc oxide film.


Patent
Nagoya Institute of Technology and Sintokogio Ltd. | Date: 2016-05-25

[Problem] There is provided a metallic abrasive pad capable of increasing a region on a worked surface, coming into contact with a catalyst or coming into extreme proximity thereto. [Solving Means] To that end, a metallic abrasive pad 2 for use in a smoothing operation applied to the worked surface 6a of a workpiece 6 by a catalyst-supported chemical machining method is made up of a compression-formed compact composed of one or more metal fibers made of a transition-metal catalyst. Since the compression-formed compact is made up of the one or more metal fibers, having a prescribed void ratio, the one or more metal fibers existing on an abrasion surface 2a can undergo elastic deformation. Accordingly, if the surface 2a of the metallic abrasive pad and the worked surface 6a of the workpiece 6 are put together by pressing, the one or more metal fibers are deformed in response to microscopic asperities existing on the worked surface 6a, thereby enabling a gap occurring between the metallic abrasive pad surface 2a and the worked surface 6a to be smaller. By so doing, a region, existing on the worked surface 6a, coming into contact with the catalyst or coming into extreme proximity thereto, can be increased.


Provided is a material for preventing bone cement from leaking out from bone during packing of the bone cement into a bone fracture site. The bone cement can be prevented from leaking out from the bone by employing a three-dimensional structure produced from a material containing a polyhydroxyalkanoate, when packing the bone cement into the bone fracture site.


Patent
Yanmar Co. and Nagoya Institute of Technology | Date: 2016-01-27

An engine ignition system and the like are provided, which reduce a required voltage and improve an ignition performance without any special electrical configuration. An ignition system 3 is configured so that: to an auxiliary electrode 13 is applied a voltage that is not more than a voltage applied between a center electrode 11 and a ground electrode 12 and that generates no spark discharge; the auxiliary electrode 13 is positioned so that an electric field Ef2 between the auxiliary electrode 13 and the ground electrode 12 or an electric field Ef3 between the auxiliary electrode 13 and the center electrode 11, which is generated by the applied voltage, is spread over the gap. A time for applying the voltage to the auxiliary electrode 13 is controlled to include a time for applying the voltage between the center electrode 11 and the ground electrode 12.


Patent
Denso Corporation and Nagoya Institute of Technology | Date: 2016-02-08

In a radar assembly, a first dielectric member includes a dielectric outermost structural member of a vehicle. A radar device includes an antenna module, and a substantially tubular or domed radome. The radome includes a transmissive portion, and is disposed to cover the antenna module such that the transmitted radar wave passes through the transmissive portion. The transmissive portion is disposed behind the back surface of the first dielectric member with space thereto. A second dielectric member includes at least the transmissive portion, and is disposed to face the first dielectric member. A frequency-selective substrate passes a radar wave within a frequency band therethrough, and block radar waves outside the frequency band. The frequency-selective substrate is disposed such that its first surface is directly abutted onto the first dielectric member, and its second surface is directly abutted onto the second dielectric member to constitute a sandwich structure.


Nakamura S.,Nagoya Institute of Technology
Organic and Biomolecular Chemistry | Year: 2014

Catalytic decarboxylative reactions are attractive as biomimetic reactions and environmentally friendly reaction processes. In this review, the origin and recent development of organocatalytic enantioselective decarboxylative reactions of malonic acid half oxy- or thioesters, or β-ketoacids are summarized. © 2014 The Royal Society of Chemistry.


Ruderman M.,Nagoya Institute of Technology
IEEE Transactions on Industrial Electronics | Year: 2014

In motor drives, just as in other mechanical actuators, the friction compensation is extremely important as friction can have adverse impact on the overall control performance. In this paper, a feedforward friction observer (FFFO) is proposed as formulating an explicit analytical expression for the applied observation function. This ensures the cancelation of friction disturbances and time variances at steady state. The proposed observation scheme utilizes the two-state dynamic friction model with elastoplasticity (abbreviated as 2SEP), which is compact in parameterization and captures both the presliding and sliding phases of kinetic friction. The method to identify a motor drive plant with nonlinear friction in the frequency domain has been applied using only few frequency-response-function measurements. The feedback control design is performed with respect to the time delay detectable in the system, thus under additional constraints when determining the control gains. The optimal proportional-integral (PI) control designed this way is compared with the proportional control combined with the observer (P-FFFO). The simulation results show that P-FFFO control compensates faster for frictional disturbances at suddenly changing frictional conditions than PI control. In addition, an extensive experimental evaluation of velocity tracking control discloses P-FFFO as superior in terms of a faster steady-state convergence after various transient phases. © 2013 IEEE.


Xu X.-H.,Nagoya Institute of Technology | Matsuzaki K.,Nagoya Institute of Technology | Shibata N.,Nagoya Institute of Technology
Chemical Reviews | Year: 2015

The introduction of SOnCF3 groups into organic compounds drastically changes their biological and physicochemical properties. It has been demonstrated that besides achiral chromatography sublimation is the major concern in the accurate determination of the enantiomeric purity of fluorinated compounds. Some of the compounds containing SOnCF3 groups would be volatile. Hence it might be highly possible to indicate the phenomenon of self-disproportionation of enantiomers during the purification stage of them by achiral chromatography and/or distillation in the case of chiral compounds. As a class of important fluorinated compounds, C-SOnCF3 compounds find increasing utility in agrochemical and pharmaceutical applications.


Patent
Nagoya Institute of Technology and Orthorebirth Co. | Date: 2016-05-18

Rebuilding a defected bone by activating the innate self-regeneration ability of bone requires a considerably long period of time. The purpose of the present invention is to provide a bone defect filling material that initiates a bone rebuilding activity as quickly as possible after implantation and thereafter remains in the defect to continue promoting bone formation activity until sufficient bone formation has been achieved for the rebuilding of the defect. The present invention provides a cotton-like bone defect filling material comprising biodegradable fibers produced by electrospinning. The biodegradable fibers contain 40-60 wt% of calcium phosphate particles and 10 wt% or more of silicon-releasing calcium carbonate particles, with the remainder containing 30 wt% or more of poly(L-lactic acid) polymer, and the amount of the poly(L-lactic acid) polymer that is non-crystalline is 75-98%.

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