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Edamatsu

Keiichi Edamatsu, Miyagi JP

Patent application numberDescriptionPublished
20090016386Quantum Entanglement Photon-Pair Producing Device and Quantum Entanglement Photon Pair Producing Method - In one embodiment of the present invention, a quantum entangled photon-pair producing device is disclosed which includes a superposed state generating device for generating a superposed state of photon-pairs entering through N (N≧2) different incident optical paths and being composed of photons having different polarization directions, and a light-guide device for separating the photon-pairs entering through the N (e.g. N is two) incident optical paths into photons having a first polarization direction (e.g. horizontally polarized light) and those having a second polarization direction (e.g. vertically polarized light) and guiding the photons having the first polarization direction and entering through the i-th (1≦i≦N) (e.g. the first) incident optical path and photons having the second polarization direction and entering through the (N−i+1) (e.g. the second) incident optical path to the i-th (e.g. the first) exit optical path through optical paths having the same optical path length. Therefore, quantum entangled photons of N channels having a quantum correlation with regard to the polarization direction can be produced. With this, a quantum entangled photon-pair producing device capable of producing quantum entangled photon-pairs of multi-channel having a quantum correlation with regard to the polarization direction with high production efficiency is realized.01-15-2009
20090251703Optical nonliner evaluation device and optical switching element - An optical nonlinear evaluation device (10-08-2009

Keiji Edamatsu, Fukushima-Shi JP

Patent application numberDescriptionPublished
20110020966METHOD FOR PROCESSING SILICON SUBSTRATE AND METHOD FOR PRODUCING SUBSTRATE FOR LIQUID EJECTING HEAD - A method for processing a silicon substrate includes preparing a first silicon substrate including an etching mask layer including first and second opening portions; forming a first recess in a portion of the silicon substrate corresponding to a region in the first opening portion; etching the silicon substrate by crystal anisotropic etching through the etching mask layer with an etching apparatus and an etchant, the etching proceeding in the first and second opening portions to form a through hole in a position corresponding to the first opening portion and to form a second recess in a position corresponding to the second opening portion; calculating an etching rate of the silicon substrate in terms of the etchant by using the second recess; and determining, by using the calculated etching rate, an etching condition for etching another silicon substrate with the etching apparatus after the etching of the first silicon substrate.01-27-2011
20110167636MANUFACTURING METHOD OF LIQUID DISCHARGE HEAD - There is disclosed a manufacturing method of a liquid discharge head including a substrate in which a first energy generating element and a second energy generating element that generate energy used for discharging liquid are provided, a discharge port member in which a first discharge port discharging the liquid is provided corresponding to the first energy generating element and a second discharge port discharging the liquid is provided corresponding to the second energy generating element, and a flow path wall member having a portion of the liquid flow path wall that communicates with the first discharge port and the second discharge port, in which a distance between the second energy generating element and the second discharge port is larger than that between the first energy generating element and the first discharge port.07-14-2011
20110195192METHOD FOR MANUFACTURING LIQUID DISCHARGE HEAD - Provided is a method for manufacturing a liquid discharge head, the liquid discharge head includes a substrate provided on a surface with a first energy generating part and a second energy generating part for generating energy utilized for discharging a liquid; a first discharge port provided corresponding to the first energy generating part so as to face the surface; a second discharge port provided corresponding to the second energy generating part so as to face the surface; a first wall member which has a wall of a first liquid flow path which communicates with the first discharge port; and a second wall member which has a wall of a second liquid flow path which communicates the second discharge port, wherein a distance between the second energy generating part and the second discharge port is greater than a distance between the first energy generating part and the first discharge port.08-11-2011

Keiji Edamatsu, Kawasaki-Shi JP

Patent application numberDescriptionPublished
20100003773METHOD FOR MANUFACTURING LIQUID DISCHARGE HEAD - A method for manufacturing a liquid discharge head provided with a substrate which has a layer made of silicon nitride and with a discharge port forming member which is disposed above the layer made of silicon nitride and has a discharge port for discharging liquid. The method includes providing a photosensitive layer that is to be the discharge port forming member above the layer made of silicon nitride, and forming the discharge port by exposing the photosensitive layer to i-line. The layer made of silicon nitride has a refractive index of 2.05 or more to light of a wavelength of 633 nm and irradiation with the i-line is performed in the exposure.01-07-2010

Kunishige Edamatsu, Toyonaka-Shi JP

Patent application numberDescriptionPublished
20100010129CHEMICALLY AMPLIFIED POSITIVE RESIST COMPOSITION - The present invention provides a chemically amplified resist composition comprising: 01-14-2010

Shigeki Edamatsu, Wako-Shi JP

Patent application numberDescriptionPublished
20110192360WATER-COOLED FOUR-CYCLE ENGINE - In a water-cooled four-cycle engine, an engine core including a cylinder block, a cylinder head and a first crankcase half body is formed as a unitary part cast integrally; a water jacket including a cylinder jacket surrounding a cylinder bore and a head jacket surrounding a combustion chamber is formed in the engine core; and a timing-belt chamber being adjacent to the cylinder jacket is provided in a side portion of the engine core. A first opening portion for forming a first semi-peripheral portion of the cylinder jacket on a side opposite from the timing-belt chamber by casting out is provided in a side surface of the cylinder block. A second opening portion for forming a second semi-peripheral portion of the cylinder jacket and the head jacket by casting out is provided in an upper surface of the cylinder head.08-11-2011
20110192361WATER-COOLED FOUR-CYCLE ENGINE - In a water-cooled four-cycle engine, an engine core including a cylinder block, a cylinder head and a first crankcase half body is formed as a unitary part cast integrally; a water jacket including a cylinder jacket and a head jacket is formed in the engine core; and a timing-belt chamber being adjacent to the cylinder jacket is provided in a side portion of the engine core. A first opening portion for forming a first semi-peripheral portion of the cylinder jacket on a side opposite from the timing-belt chamber by casting out is provided in a side surface of the cylinder block. Second and third opening portions for forming a second semi-peripheral portion of the cylinder jacket and the head jacket as well as the timing-belt chamber, respectively, by casting out are provided in an upper surface of the cylinder head.08-11-2011
20110192362WATER-COOLED FOUR-CYCLE ENGINE - In a water-cooled four-cycle engine, an engine core including a cylinder block, a cylinder head and a first crankcase half body is formed as a unitary part cast integrally, and a water jacket including a cylinder jacket and a head jacket is formed in the engine core. In a first side surface of the engine core which is parallel with an axis of a crankshaft, an intake port and a first semi-peripheral portion of the water jacket are opened and a first lid plate for closing an opening portion of the first semi-peripheral portion is connected. In a second side surface of the engine core on a side opposite from the first side surface, an exhaust port and a second semi-peripheral portion of the water jacket are opened and a second lid plate for closing an opening portion of the second opposite portion is connected.08-11-2011

Toshiaki Edamatsu, Chichibu-Gun JP

Patent application numberDescriptionPublished
20100289708ANTENNA DEVICE AND COMMUNICATION APPARATUS - There is provided an antenna device including a substrate, an earth section which is disposed on a portion of the substrate, a feed point which is disposed on the substrate, a loading section disposed on the substrate and constructed with a line-shaped conductor pattern which is formed in a longitudinal direction of an elementary body made of a dielectric material, an inductor section which connects one end of the conductor pattern to the earth section, and a feed point which feeds a current to a connection point of the one end of the conductor pattern and the inductor section, wherein a longitudinal direction of the loading section is arranged to be parallel to an edge side of the earth section.11-18-2010