Patent application number | Description | Published |
20110183563 | Polymer alloy fiber, fibrous material, and method for manufacturing polymer alloy fiber - A polymer alloy fiber that has an islands-in-sea structure of two or more kinds of organic polymers of different levels of solubility, wherein the island component is made of a low solubility polymer and the sea component is made of a high solubility polymer, while the diameter of the island domains by number average is in a range from 1 to 150 nm, 60% or more of the island domains in area ratio have sizes in a range from 1 to 150 nm in diameter, and the island components are dispersed in a linear configuration. A method for manufacturing the polymer alloy fiber includes melt spinning of a polymer alloy that is made by melt blending of a low solubility polymer and a high solubility polymer. | 07-28-2011 |
20120288703 | SEA-ISLAND COMPOSITE FIBER, ULTRAFINE FIBER, AND COMPOSITE SPINNERET - A sea-island composite fiber has an island component which is ultrafine fibers having a noncircular cross-section, the ultrafine fibers being uniform in the degree of non-circularity and in the diameter of the circumscribed circle. The sea-island composite fiber includes an easily soluble polymer as the sea component and a sparingly soluble polymer as the island component, and the island component has a circumscribed-circle diameter of 10-1,000 nm, a dispersion in circumscribed-circle diameter of 1-20%, a degree of non-circularity of 1.2-5.0, and a dispersion in the degree of non-circularity of 1-10%. | 11-15-2012 |
20130264733 | POLYACRYLONITRILE FIBER MANUFACTURING METHOD AND CARBON FIBER MANUFACTURING METHOD - A method of manufacturing a polyacrylonitrile fiber includes a spinning process in which a spinning dope including polyacrylonitrile is spun; a first drawing process; a drying process; and a second hot drawing process in this order. | 10-10-2013 |
20150132428 | COMPOSITE SPINNERET - A composite spinneret for discharging a composite polymer stream consisting of at least two or more component polymers, which includes a metering plate having multiple metering holes for metering respective component polymers, a distribution plate with multiple distribution holes formed in the distribution grooves for joining the polymer streams discharged from the metering holes, and a discharge plate. | 05-14-2015 |
20150184315 | SEA-ISLAND COMPOSITE FIBER - A sea-island composite fiber includes island component fibers having a circumscribed circle diameter of 10 to 1000 nm, a circumscribed circle diameter variation of 1 to 20%, a non-circularity of 1.2 to 5.0, and a non-circularity variation of 1 to 10%. | 07-02-2015 |
Patent application number | Description | Published |
20140062507 | ELECTRIC CHARGE DETECTION CIRCUIT - Ends on one side of physical quantity detection sensors formed of any of an electric charge generation-type sensor and a capacitance change-type sensor can be connected to negative electrode input terminals of a differential amplifier circuit, and ends on the other side are connected to positive electrode input terminals of the differential amplifier circuit. A feedback resistor and a feedback capacitor are connected in parallel between the negative electrode input terminal and an output terminal of the differential amplifier circuit, and a cancel resistor and a cancel capacitor are connected in parallel between a reference voltage and the positive electrode input terminal of the differential amplifier circuit. Drain voltage adjustment circuits can be provided that adjust the drain voltage of at least one of two field effect transistors to which positive and negative differential inputs of the differential amplifier circuit are individually inputted. | 03-06-2014 |
20140238133 | CAPACITANCE DETECTION CIRCUIT - A capacitance detection circuit inhibits noise. The capacitance detection circuit detects a change in capacitance between a pair of electrodes of a physical quantity sensor, with these electrodes generating the change in capacitance in response to a change in physical quantity. The capacitance detection circuit has a carrier signal generating circuit that supplies a carrier signal to one of the electrodes, an operational amplifier that has an inverting input terminal to which the other one of the electrodes is input, a dummy capacity that is connected in parallel to the pair of electrodes, and a carrier signal conditioning circuit that inverts a phase of a carrier signal supplied from the carrier signal generating circuit to the dummy capacity and adjusts a gain to inhibit the dummy capacity. | 08-28-2014 |
20140251013 | ACCELERATION SENSOR - An acceleration sensor can ensure rigidity of its movable electrode despite a large number of through-holes formed in the movable electrode. The acceleration sensor has an SOI substrate in which a silicon oxide layer is formed on a silicon support layer and an active silicon layer is formed on the silicon oxide layer, wherein the active silicon layer of the SOI substrate has a movable electrode supported by elastic beams and configured with a weight, and also has fixed electrodes disposed in a fixed manner around the movable electrode to face the movable electrode, and wherein through-holes penetrating in a Z-axis direction are formed over the entire surface on the inner side of an outer circumference to which the elastic beams of the movable electrode are connected. | 09-11-2014 |
20140300375 | CAPACITANCE DETECTION CIRCUIT - A capacitance detection circuit has at least a carrier signal generating circuit that supplies a carrier signal to one of a movable or a fixed electrode of a sensor, an operational amplifier with one of the movable or fixed electrode as an input and ground as another input, and a printed circuit board on which the physical quantity sensor, the carrier signal generating circuit, and the operational amplifier are mounted. An insulation-secured area on the printed circuit board is configured as a moisture absorption reduction area, including at least an electrode connection part of the physical quantity sensor, an input-side connection part of the operational amplifier, and a connection part connected to the input side of the operational amplifier out of connection parts of input-side circuit components connected between the electrode connection part and the input-side connection part. | 10-09-2014 |
Patent application number | Description | Published |
20090048404 | POLYPROPYLENE RESIN COMPOSITION AND ORIENTED FILM THEREOF - A polypropylene resin composition comprising a propylene polymer obtained by, in a first stage, polymerizing monomers mainly containing propylene to produce a crystalline propylene polymer component (A) having an intrinsic viscosity of not less than 3.0 dl/g and less than 5.0 dl/g, and, in a stage after the first stage, polymerizing monomers mainly containing propylene to produce a crystalline propylene polymer component (B) having an intrinsic viscosity of not less than 1.5 dl/g and less than 2.5 dl/g, wherein the content of the crystalline propylene polymer component (A) in the propylene polymer is not less than 1% by weight and less than 10% by weight, the polypropylene resin composition having a melt flow rate, as measured at a temperature of 230° C. and under a load of 21.18 N, of not less than 1.0 g/10 min and less than 10 g/10 min. | 02-19-2009 |
20090171030 | POLYPROPYLENE-BASED COPOLYMER AND FILM COMPRISING THE POLYPROPYLENE-BASED COPOLYMER - A polypropylene-based copolymer containing 50 to 95% by weight of a polymer component (component A) mainly comprising the constitutional unit derived from propylene and having a melting point exceeding 155° C. and 5 to 50% by weight of a copolymer component (component B) of propylene, ethylene and an α-olefin having 4 or more carbon atoms in which the content (X) of the constitutional unit derived from propylene is 10≦X<50% by weight, the content (Y) of the constitutional unit derived from ethylene is 5007-02-2009 | |
20100144974 | POLYPROPYLENE-BASED COPOLYMER AND FILM COMPRISING THE POLYPROPYLENE-BASED COPOLYMER - A polypropylene-based copolymer containing 50 to 95% by weight of a polymer component comprising 95% by weight or more of the constitutional unit derived from propylene and having a melting point exceeding 155° C. (component A) and 5 to 50% by weight of a copolymer component of propylene, ethylene and an α-olefin having 4 or more carbon atoms (component B) in which the content of the constitutional unit derived from propylene (X) is 10% by weight≦X<50% by weight, the content of the constitutional unit derived from ethylene (Y) is 50% by weight06-10-2010 | |
20110196106 | PROPYLENE-BASED COPOLYMER AND FILM MADE OF THE SAME - A propylene-based copolymer is composed of 60 to 90% by weight of Component (A) that is a polymer component whose major structural unit is a structural unit derived from propylene and 10 to 40% by weight of Component (B) that is a propylene-ethylene copolymer component whose content of a structural unit derived from ethylene is 50 to 80% by weight, wherein the sum total of Component (A) and Component (B) is 100% by weight, wherein the ratio of the intrinsic viscosity of Component (B)([η]B) to the intrinsic viscosity of Component (A) ([η]A)([η]B/[η]A) satisfies a formula: 1.3<[η]B/[η]A≦2.0, and the melt flow rate, measured at a temperature of 230° C. and a load of 21.18 N, of the copolymer is not less than 5 g/10 minutes and not more than 30 g/10 minutes. | 08-11-2011 |