Nagoya University , abbreviated to Meidai , is a Japanese national university headquartered in Chikusa-ku, Nagoya. It is the last Imperial University in Japan and among the National Seven Universities. It is the 4th best ranked higher education institution in Japan.As of 2014, six faculty and alumni of the university have won the Nobel Prize in science. Wikipedia.
Nagoya University and Asuka Medical Inc. | Date: 2015-06-30
A laser therapeutic device for a laser endoscope capable of relatively reducing the diameter of the endoscope while being capable of emitting a laser beam of a uniform intensity over a wide area is provided. An optical guide element (a square-shaped rod lens 15, a guide tube 2b) having a quadrangular cross section and guiding a therapeutic laser beam emitted from the tip of an optical fiber toward the tip side of a probe is used. On the tip side of a probe tube 2 being a barrel, using clearances C1 to C4 formed between the optical guide element and the inner circumferential surface of the probe tube, a camera unit 11 as imaging means and white-color LED units 12 and an ultraviolet LED unit 13 as illumination means are arranged.
Koito Manufacturing Co., Tokyo Institute of Technology and Nagoya University | Date: 2016-08-26
A phosphor is represented by the general formula aM^(I)X.M^(II)_(1-x)M^(I)M^(V)O_(4):(Re)_(x ) where M^(I )is at least one atomic element selected from the group consisting of K, Li, Na, Rb, Cs, Fr, Cu, and Ag, with K being essential; M^(II )is at least one atomic element selected from the group consisting of Mg, Ca, Sr, Ba, Ra, Mn, Zn, Cd, and Sn; M^(V )is at least one atomic element selected from the group consisting of P, V, Nb, Ta, As, Sb, and Bi; X is at least one halogen element, with F being essential; Re is at least one atomic element selected from the group consisting of rare earth elements, with Eu being essential; and a is in the range 0.6a1.4.
Toyota Jidosha Kabushiki Kaisha and Nagoya University | Date: 2016-07-27
A sliding member is capable of moving relative to a counterpart and includes a substrate and an amorphous carbon film which is provided on the substrate. The amorphous carbon film has a nitrogen content of 2 at % to 11 at % and a surface hardness in a range of 25 GPa to 80 GPa.
Nagoya University | Date: 2017-02-15
Provided is a microparticle separation chip capable of continuously separating microparticles from a solution in a short period of time in which microparticles having different particle diameters are mixed, without the need to use antibodies or the like. Also provided are a microparticle separation system and method for microparticle separation using the chip. The microparticle separation chip comprises a substrate and at least three or more pillars, a single capture site for capturing to-be-captured microparticles being formed using the at least three or more pillars having one end provided on the substrate and the other end open above, the spacing Z between any mutually adjacent pillars that form the single capture site being Y < Z X, where X is the size of the to-be-captured microparticles, and Y is the size of the microparticles to be removed, and the at least three or more pillars that form a single capture site being arranged in a positional relationship in which to-be-captured microparticles captured in the capture site do not flow out from between any adjacent pillars.
Mitsubishi Group and Nagoya University | Date: 2017-03-08
Electrodeless plasma is supplied to a space (S) between a cathode (22) and an anode (23) to lower the electrical resistivity in the space, and the electrodeless plasma is accelerated by Lorentz force induced by an axial magnetic field component (B_(x)) and a radial magnetic field component (B_(y)) generated in the space (S), and by an electric current (I_(ac)) flowing through the space (S).
Nagoya University and Nu System Corporation | Date: 2017-01-04
[Object] To provide a radical generator which can produce radicals at higher density. [Means for Solution] The radical generator includes a supply tube 10 made of SUS, a hollow cylindrical plasma-generating tube 11 which is connected to the supply tube 10 and which is made of pyrolytic boron nitride (PBN). A first cylindrical CCP electrode 13 and a second cylindrical CCP electrode 30 are disposed outside the plasma-generating tube 11. A coil 12 is provided so as to wind about the outer circumference of the plasma-generating tube 11 at the downstream end of the first CCP electrode 13. A thin connecting tube 23 extending from the bottom of the plasma-generating tube 11 is inserted into the supply tube 10.
Nagoya University | Date: 2017-04-05
An AlN crystal preparation method, in which: at least one element excluding Si is used that fulfills the condition that a compound is not formed with either Al or N or the condition that a compound is formed with either Al or N but the standard free energy of formation of said compound is greater than the standard free energy of formation of AlN; a composition including at least Al and the element is melted; Al vapor and nitrogen gas are reacted at a prescribed reaction temperature; and AlN crystals are formed.
Nagoya University | Date: 2017-03-29
A trace component in a sample is quickly and accurately analyzed using a small sample quantity without performing preprocessing such as concentration. Trace components in a sample can be analyzed quickly and accurately using a small sample quantity and without preprocessing such as concentration, by a method for analyzing a component in a sample, the method including a step for irradiating a thermoplastic resin film internally containing the sample with ionizing laser light of a mass spectrometer.
Yamamoto Y.,Nagoya University
Chemical Society Reviews | Year: 2014
Transition-metal (TM)-catalyzed hydroarylation reactions of alkynes have received much attention, because they enable the net insertion of alkyne C-C triple bonds into C-H bonds of aromatic precursors, resulting in regio- and stereo-selective formation of synthetically useful arylalkenes. Taking advantage of this feature, TM-catalyzed alkyne hydroarylations have been successfully used for the synthesis of heterocycles. TM-catalyzed alkyne hydroarylations can be classified into three major categories depending on the type of reaction and precursors involved: (1) palladium-catalyzed reductive Heck reactions of alkynes with aryl halides, (2) TM-catalyzed conjugate arylation reactions of activated alkynes with arylboronic acids, and (3) TM-catalyzed aromatic C-H alkenylations with alkynes. This review surveys heterocycle synthesis via TM-catalyzed hydroarylation of alkynes according to the above classification, with an emphasis on the scope and limitations, as well as the underlying mechanisms. © 2014 The Royal Society of Chemistry.
Yamamoto Y.,Nagoya University
Chemical Reviews | Year: 2012
The transition-metal-catalyzed cycloisomerizations of α,ω- dienes have been continuously investigated because such cycloisomerization reactions provide atom-economical routes to various carbo- and heterocyclic compounds. Nevertheless, early catalytic systems generally lacked the requisite isomeric selectivity and the general substrate scope. Considerable efforts devoted to the identification of selective and versatile catalyst systems have led to recent developments of late-transitionmetal-catalyzed cycloisomerizations of 1,6-dienes with wide substrate scope and high isomeric selectivity, including asymmetric cycloisomerizations. There is, nevertheless, room for improvement of the substrate scope, the isomeric selectivity, and the enantiomeric selectivity. In addition, by combining the newly developed catalytic systems with state-of-the-art techniques such as a microwave treatment and the use of unique solvent systems, further progress in diene cycloisomerizations is being made possible. For xample, recyclable catalyst systems for the 1,6-diene cycloisomerization have been established using ionic liquids and scCO2 as solvents. Further investigations into the utilization of heterogeneous catalysts and carbophilic Lewis acid catalysts as well as less examined substrates would result in the development of unprecedented modes of cycloisomerization and would increase the synthetic value of α,ω-diene cyclization. © 2012 American Chemical Society.