An object is to provide a semiconductor device of which a manufacturing process is not complicated and by which cost can be suppressed, by forming a thin film transistor using an oxide semiconductor film typified by zinc oxide, and a manufacturing method thereof. For the semiconductor device, a gate electrode is formed over a substrate; a gate insulating film is formed covering the gate electrode; an oxide semiconductor film is formed over the gate insulating film; and a first conductive film and a second conductive film are formed over the oxide semiconductor film. The oxide semiconductor film has at least a crystallized region in a channel region.

Semiconductor device, and manufacturing method thereof

An electric power-steering device has a speed-reducing mechanism (17) for reducing the speed of an output shaft (16) of an electric motor (15). The speed-reducing mechanism (17) has an internal gear (39) engaged and rotated with the output shaft (16) and an external gear (40) with which the internal gear (39) internally meshes. A drive pulley (41) rotatable together with the external gear (40) and a driven pulley (42) provided so as to surround a steering shaft are connected by an endless belt (43). Speed reduction is obtained by the internal gear (39) and the external gear (40), and the speed-reducing mechanism (17) as a whole achieves a high reduction ratio without greatly reducing the diameter of the drive pulley (41).

Electric power-steering device

An adhesive tape includes a particular foam base. An average bubble diameter in a machine direction (MD) and an average bubble diameter in a cross-machine direction (CD) of the foam base are each 150 µm or less, a ratio represented by the average bubble diameter in the machine direction/an average bubble diameter in a vertical direction (VD) and a ratio represented by the average bubble diameter in the cross-machine direction/the average bubble diameter in the vertical direction are each 6 or less, and the foam base has an interlaminar strength of 20 N/cm or more. With this adhesive tape, good followability to an adherend and excellent impact resistance can be realized. Accordingly, the adhesive tape of the present invention can be suitably used in portable electronic devices such as smartphones, tablet personal computers, notebook personal computers, and game machines whose screen size has been increasing and for which a requirement for flexible design is high.

Pressure sensitive adhesive tape

A pressure-sensitive adhesive sheet contains at least a pressure-sensitive adhesive layer containing an acrylic pressure-sensitive adhesive containing an acrylic polymer composition containing an acrylic polymer as a main component and a tackifier containing a tackifying resin as a main component, wherein reflection rate and attached amount in the fogging test in accordance with German Industrial Standard DIN 75201 are 70% or more and 20 mg or less, respectively In the acrylic pressure-sensitive adhesive which forms the pressure-sensitive adhesive layer, a ratio of components having a molecular weight of 300 or less is preferably 42% by weight or less based on the total amount of solid matter of the acrylic pressure-sensitive adhesive Furthermore, in the tackifying resin in the tackifier, a ratio of components having a molecular weight of 300 or less is suitably 42% by weight or less based on the total amount of solid matter of the tackifying resin

Pressure-sensitive adhesive sheet

A multi-layer article which may be provided in the form of a tape comprises a conformable, compressible, melt flow-resistant core layer having first and second major surfaces, a sealant layer on the first major surface of the core layer, and optionally a bonding layer on the second major surface of the core layer. The sealant layer and the bonding layer each have a surface available for contacting a separate substrate. Various thermoset and foam core layers are disclosed as are thermosettable and thermoplastic sealant layers. The articles are useful for sealing two substrates together, particularly where one of the substrates is glass. Thus, the articles are especially adapted for sealing motor vehicle windshields to a frame. Various assemblies and methods for producing the same are also described.

Sealant composition, article including same, and method of using same

PROBLEM TO BE SOLVED: To switch a power supply control device to an energy saving mode regardless of the condition of a pedal and prevent consumption of a battery in the case where the car speed detected by a car speed sensor becomes less than a preset value, and the elapsed time from when the change rate of a power supply voltage exceeds a preset time exceeds a preset value. SOLUTION: A control circuit 42 supplies power from a battery 36 through a power supply circuit 44 by turning on a main switch 40. According to signals of the pedaling force detected by a pedaling force sensor 56 and the car speed detected by a car speed sensor 58, a switching circuit 50 is controlled to drive an electric motor 30, whereby the pedaling force is assisted to travel a power assisted bicycle 2. When the vehicle speed detected by the vehicle speed sensor 58 becomes less than a preset value and the elapsed time from when the change rate of power supply voltage of the battery 36 measured by a power supply voltage measuring circuit 54 exceeds a preset value exceeds a preset value, the bicycle is switched to an energy saving mode by the control circuit 42 to turn off the power supply circuit 44 and a main relay 46.

Power supply control device of power assisted bicycle

PROBLEM TO BE SOLVED: To provide a method for preparing a thin film forming composition which suppresses increase in molecular weight of an alkoxysilane condensation product during storage and substantially avoids increase in viscosity of the composition, therefore enables to form a thin film uniform in film thickness and having a fine pattern shape with high accuracy. SOLUTION: The method for preparing the thin film forming composition includes: a step of bringing an alkoxysilane having an alkoxy group into hydrolytic condensation in the presence of water to obtain a solution comprising an alkoxysilane condensation product, water and an alcohol derived from the alkoxy group; and a step of heating the solution to bring the water and alcohol into azeotrope, whereby the solution is dewatered to obtain a thin film forming composition, wherein the molar ratio of the residual alcohol to the alkoxysilane condensation product in the obtained thin film forming composition is within a range defined by a broken line X in figure 1 according to condensation rate R of the alkoxysilane condensation product. COPYRIGHT: (C)2009,JPO&INPIT

Method for preparing thin film forming composition, thin film forming method and semiconductor device

PURPOSE: To obtain an acrylic adhesive composition free from deterioration of adhesivity to an objective body, eg a concrete with age owing to superiority in alkaline resistance by compounding a polar group-containing acrylic copolymer, a bridging agent capable of reacting a polar group and a specific compound CONSTITUTION: This composition is obtained by compounding (A) 100 ptswt of an acrylic copolymer comprising (i) an alkyl (meth)acrylate [preferably a 4-14C alkyl (meth)acrylate, eg n-butyl (meth)acrylate] and (ii) a poplar group- containing vinyl monomer (eg maleic acid), (B) 001-5 ptswt of a bridging agent (eg toluidine diisocyanate) capable of reacting a polar group and (C) 05-10 ptswt of an alkoxysilane compound (eg vinyltrimethoxysilane) Further, in the constituents of the component A, the component (i) and the component (ii) are preferably contained in amounts of 70-93wt% and 7-30wt% respectively COPYRIGHT: (C)1995,JPO

Acrylic adhesive composition

PROBLEM TO BE SOLVED: To obtain a thermoconductive pressure-sensitive adhesive agent flexible and high in thermal conductivity and to prepare a thermoconductive pressure- sensitive adhesive sheet. SOLUTION: The thermoconductive pressure-sensitive adhesive agent contains 100 pts.wt. of a copolymer, formed by the polymerization of a copolymerizable monomer mixture mainly comprising an alkyl acrylate, and 100-500 pts.wt. of boron nitride, wherein the alkyl acrylate has a 2-18C alkyl group and the boron nitride is less than 95 wt.% in purity and 17-20 degrees in hardness. COPYRIGHT: (C)2003,JPO

Thermocomductive pressure-sensitive adhesive agent and thermocomductive pressure-sensitive adhesive sheet

PROBLEM TO BE SOLVED: To provide a brilliant material-containing resin composition capable of obtaining a molded product having an appearance of a metallic tone and an excellent appearance without a weld line. SOLUTION: This brilliant material-containing resin composition comprises a thermoplastic resin (A) of 100 pts.wt., a fiber (B) of 1-70 pts.wt. having an average fiber length of 0.1-20 mm and a brilliant material (C) of 0.1-10 pts.wt. Furthermore, the brilliant material (C) has an average size of 90-180 μm. COPYRIGHT: (C)2007,JPO&INPIT

Brilliant material-containing resin composition

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賢一東

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Papers

Power supply control device of power assisted bicycle

Method for preparing thin film forming composition, thin film forming method and semiconductor device

Acrylic adhesive composition

Thermocomductive pressure-sensitive adhesive agent and thermocomductive pressure-sensitive adhesive sheet

Brilliant material-containing resin composition

賢一 東

Author Tools

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Papers

Power supply control device of power assisted bicycle

Method for preparing thin film forming composition, thin film forming method and semiconductor device

Acrylic adhesive composition

Thermocomductive pressure-sensitive adhesive agent and thermocomductive pressure-sensitive adhesive sheet

Brilliant material-containing resin composition

賢一東