Takeuchi, Ibaraki
Daisuke Takeuchi, Ibaraki JP
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20100001292 | High Efficiency Indirect Transition Semiconductor Ultraviolet Light Emitting Device - Provided is a light emitting device formed of an indirect transition semiconductor configured from a semiconductor material having high exciton binding energy, wherein an active layer of the indirect transition semiconductor or an active region by a pn junction is formed, the light emitting device has an electrode for injecting current into the active layer or the active region, and the internal quantum efficiency is 10% or more. | 01-07-2010 |
Etsuo Takeuchi, Ibaraki JP
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20110305595 | HYDROGEN FATIGUE RESISTANT FERRITIC STEEL AND MANUFACTURING METHOD THEREOF - A ferritic steel having tensile properties and fatigue properties capable of withstanding use in a hydrogen environment and a method of manufacture thereof are provided. By adding one or more element selected from among vanadium (V), titanium (Ti) and niobium (Nb) so that the steel includes, together with at least ferrite grains in the structure, a carbide or carbides of one or more element selected from among V, Ti and Nb, the reduction of area and the fatigue crack propagation rate of the ferritic steel in a hydrogen environment are improved. The advantages of the invention were confirmed in cases where the ferrite grains are small grains of 1 μm or less in size, and in cases where the ferrite grains are coarse grains from several micrometers to 20 μm in size, and moreover in cases where the ferrite grains are coarse grains from several micrometers to 60 μm in size. | 12-15-2011 |
Kazuhiko Takeuchi, Ibaraki JP
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20100004479 | PROCESSES FOR PRODUCING CARBONIC ESTER AND PRODUCING POLYCARBONATE - A process for producing a carbonic ester, characterized in that an aromatic monohydroxy compound or an aliphatic monohydroxy compound is subjected to oxidative carbonylation with carbon monoxide and oxygen in the presence of a palladium catalyst using a compound having a carbonate bond as a reaction solvent. A process for producing a polycarbonate, characterized in that an aromatic dihydroxy compound or an aliphatic dihydroxy compound is subjected to oxidative carbonylation with carbon monoxide and oxygen in the presence of a palladium catalyst using a compound having a carbonate bond as a reaction solvent is also described. The carbonic ester can be produced with a higher yield and at a higher reaction rate and, also, a polycarbonate having a higher molecular weight as compared with the conventional method can be produced with a higher yield and at a higher reaction rate. | 01-07-2010 |
20100125110 | LACTIC ACID OLIGOMER AND METHOD FOR PRODUCING THE SAME - In a method for producing a lactic acid oligomer by subjecting an aqueous lactic acid solution to a polycondensation reaction under microwave irradiation, the polycondensation reaction is carried out under reduced pressure in the absence of a polymerization catalyst and an organic solvent. An initial polycondensation reaction is carried out under normal pressure, and thereafter, a reaction is carried out under reduced pressure. The pressure is reduced stepwise to give a final pressure of 2000 Pa or less. A lactic acid oligomer which has a high purity and is safe from hygiene point of view can be obtained at a low cost in a short time. | 05-20-2010 |
Kazumasa Takeuchi, Ibaraki JP
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20100065313 | MULTI-LAYER WIRING BOARD - It is an object of the present invention to provide a multilayer circuit board that can be housed at high density in the enclosures of electronic devices. According to a preferred embodiment of the invention, a multilayer circuit board ( | 03-18-2010 |
20100270059 | PRINTED WIRING BOARD - It is an object of the present invention to provide a printed circuit board that can be housed at high density in the enclosures of electronic devices. The printed circuit board ( | 10-28-2010 |
20110272185 | PREGREG, FILM WITH RESIN, METAL FOIL WITH RESIN, METAL-CLAD LAMINATE, AND PRINTED WIRING BOARD - The present invention provides the prepreg being formed by impregnating a fiber base material with a resin composition and the resin composition comprising an acrylic resin, wherein the ratio of the peak height near 2240 cm | 11-10-2011 |
Mikio Takeuchi, Ibaraki JP
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20090239916 | NOVEL DRUG DISCOVERY TARGET AND MEDICINE ACTING ON THE SAME - The present invention provides a pharmaceutical composition comprising as an active ingredient a compound that specifically binds to MFP-2 or a functional fragment thereof and a screening method for the compound; the compound and a pharmaceutical composition comprising the same are highly useful as anti-inflammatory agents and anti-allergic agents. | 09-24-2009 |
Motoharu Takeuchi, Ibaraki JP
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20140357835 | POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIAL, METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING OPTICAL MATERIAL - By using a method for producing a composition for an optical material using (a) sulfur, (b) a compound having two intramolecular episulfide groups, (c) a compound having one or more (preferably two) SH groups, and (d) an amine compound having a specific structure, in which compound (a) and compound (c) are pre-polymerized in the presence of compound (b) using compound (d) as the pre-polymerization catalyst, the present invention provides a polymerizable composition for an optical material in which the viscosity elevation speed during pre-polymerization is slow and the reaction temperature is approximately room temperature, and that has a low viscosity and shows little increase in viscosity. By means of another embodiment of the present invention, it is possible to produce an optical material that has excellent mold release characteristics but has substantially no striae by polymerizing (a) sulfur, (b) a compound having two intramolecular episulfide groups, and (c) a compound having one or more SH groups in the presence of (d) a hindered amine catalyst having a specific structure. | 12-04-2014 |
20140378628 | METHOD FOR PRODUCING COMPOSITION FOR OPTICAL MATERIAL - According to the present invention, a composition for optical material, which is capable of providing a homogeneous optical material, can be prepared through pre-polymerization reaction between (a) an inorganic compound having a sulfur atom and (b) an episulfide compound using a hindered amine as a catalyst, followed by mixing with (c) a polythiol compound and (d) a polyisocyanate compound. Moreover, this composition for optical material can be polymerized and cured to thereby provide an optical material having high refractive index (ne of 1.73 or higher), high strength (an elongation of 13% or more in three-point bend test and good drilling resistance), and high heat resistance (a softening point of 70° C. or higher, as measured by TMA). | 12-25-2014 |
Osamu Takeuchi, Ibaraki JP
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20100088787 | PUMP PROBE MEASURING DEVICE AND SCANNING PROBE MICROSCOPE APPARATUS USING THE DEVICE - A pump probe measuring device ( | 04-08-2010 |
20140240710 | PUMP PROBE MEASURING DEVICE - A pump probe measuring device ( | 08-28-2014 |
Shota Takeuchi, Ibaraki JP
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20140294483 | ELECTRIC TOOL AND BATTERY PACK FOR THE ELECTRIC TOOL - When a battery pack is mounted to a battery attachment part, the battery pack is slid in a horizontal direction (a direction substantially perpendicular to an upper-lower direction) with respect to the housing, e.g., along a long longitudinal direction of a battery-side rail part, such that tool-side rail parts of the battery attachment part are introduced into engaging recess portions of the battery pack. Thereby, the elastic members are fitted and compressed in the battery-side rail parts and the tool-side rail parts, so that the elastic members press upwards the battery-side rail part (e.g., the battery pack) and press downwards the tool-side rail parts (e.g., the housing). That is, the elastic members press the battery pack and the housing such that they come close to each other. | 10-02-2014 |
Takao Takeuchi, Ibaraki JP
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20130316909 | COMPOSITE BARRIER-TYPE Nb3Al SUPERCONDUCTING MULTIFILAMENT WIRE MATERIAL - A composite barrier-type Nb | 11-28-2013 |
Tetsuya Takeuchi, Ibaraki JP
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20090072473 | Sheet guide apparatus - In a sheet guide apparatus, a rotary guide body is supported to be rotatable and movable in directions to separate from and come close to the upper surface of a sheet. The outer surface of the rotary guide body comes into contact with the upper surface of the sheet to guide the sheet. A rotary guide body adjusting unit adjusts a position of the rotary guide body in directions to separate from and come close to the upper surface of the sheet. A plate-like guide body extends in the convey direction and lateral direction of the sheet, includes a guide surface which comes into contact with the upper surface of the sheet to guide the sheet, and is supported to be movable in the directions to separate from and come close to the upper surface of the sheet. A plate-like guide body adjusting unit adjusts a position of the plate-like guide body in the directions to separate from and come close to the upper surface of the sheet. The sheet contact portion on the outer surface of the rotary guide body is set below the guide surface of the plate-like guide body through at least one space portion which is formed in a downstream end of the plate-like guide body in the sheet convey direction to correspond to the rotary guide body. | 03-19-2009 |
Toshimasa Takeuchi, Ibaraki JP
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20090229756 | PLASMA PROCESSING APPARATUS - In an atmospheric-pressure plasma processing apparatus, a first metal surface | 09-17-2009 |
Youichi Takeuchi, Ibaraki JP
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20100221041 | PHOTOCONDUCTIVE DRUM AND IMAGE FORMING APPARATUS HAVING THE SAME - A disclosed photoconductive drum includes a mechanism where, when the sleeve inner circumferential surface pressing member is in contact with the inner circumferential surface of the photoconductive sleeve member, a displacement of the first end surface member with respect to the photoconductive sleeve member in the center line direction leads to increasing a pressing force applied from the sleeve inner circumferential surface pressing member to the inner circumferential surface of the photoconductive sleeve member. | 09-02-2010 |