Patents by Inventor Koji Koyama
Koji Koyama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20150206712Abstract: An antenna includes a dielectric window and a slot plate provided at one surface of the dielectric window. The slot plate includes a plurality of slot pairs each being formed of two slots. The slot pairs are concentrically disposed about a centroid position of the slot plate and provided at positions where straight lines extending from the centroid position of the slot plate and passing through each slot pair are not overlapped with each other.Type: ApplicationFiled: April 1, 2015Publication date: July 23, 2015Applicant: TOKYO ELECTRON LIMITEDInventors: Naoki MATSUMOTO, Koji KOYAMA, Jun YOSHIKAWA
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Publication number: 20150155139Abstract: A slot plate is provided at one surface of a dielectric window. The other surface of the dielectric window includes a flat surface surrounded by an annular first recess, and a plurality of second recesses formed at a bottom surface of the first recess. An antenna including the dielectric window and the slot plate provided at one surface of the dielectric window can be applied to the plasma processing apparatus.Type: ApplicationFiled: December 1, 2014Publication date: June 4, 2015Applicant: TOKYO ELECTRON LIMITEDInventors: Jun YOSHIKAWA, Naoki MATSUMOTO, Masayuki SHINTAKU, Koji KOYAMA, Naoki MIHARA, Yugo TOMITA
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Patent number: 9048070Abstract: A dielectric window for a plasma treatment device for a plasma treatment device that uses microwaves as a plasma source. The dielectric window is circular-plate-shaped and allows microwaves to propagate. The dielectric window has a recess that has an opening on the lower-surface side and that indents in the plate thickness direction of the dielectric window, and is provided to the lower surface at which plasma is generated when the dielectric window is provided to the plasma treatment device. The recess has a bottom surface extending in the direction perpendicular to the plate thickness direction, and a side surface extending in the plate thickness direction from the circumferential edge of the bottom surface toward the opening of the recess. In addition, an inclined surface extends at an incline relative to the plate thickness direction from the opening-side circumferential edge of the side surface toward the opening of the recess.Type: GrantFiled: November 8, 2012Date of Patent: June 2, 2015Assignee: TOKYO ELECTRON LIMITEDInventors: Caizhong Tian, Naoki Matsumoto, Koji Koyama, Naoki Mihara, Kazuki Takahashi, Jun Yoshikawa, Kazuki Moyama, Takehiro Tanikawa
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Publication number: 20150096882Abstract: A plasma processing apparatus 1 includes a central inlet unit that introduces a processing gas containing at least one of an Ar gas, a He gas and an etching gas toward a central portion of a wafer W; a peripheral inlet unit 61 that introduces the processing gas toward a periphery portion thereof; a flow rate adjusting unit that adjusts a flow rate of the processing gas introduced toward the central portion thereof from the central inlet unit 55 and a flow rate of the processing gas introduced toward the periphery portion thereof from the peripheral inlet unit 61; and a controller 49 that controls the flow rates of the processing gas adjusted by the flow rate adjusting unit such that a partial pressure ratio of the He gas to the Ar gas contained in the processing gas is equal to or higher than a preset value.Type: ApplicationFiled: June 14, 2013Publication date: April 9, 2015Inventors: Naoki Matsumoto, Koji Koyama, Toshihisa Ozu, Shota Yoshimura
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Publication number: 20150014615Abstract: A hand operated pulling and lifting hoist includes: a change gear that engages with a switching pawl fitting provided for an operation lever to convert a manual force applied to the operation lever into a hoist driving force; a fixed support ring disposed for the rotatable mounting of the operation lever about a driving member that is set about the drive shaft to transmit the hoist driving force to the drive shaft; a pivotable support ring formed on the operation lever and rotatably fitted to an internal circumference of the fixed support ring; and a driving-member contact prevention part on the change gear to prevent contact between the pivotable support ring and the driving member.Type: ApplicationFiled: February 21, 2013Publication date: January 15, 2015Inventors: Koji Koyama, Nobuyoshi Mukawa
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Publication number: 20140312767Abstract: A dielectric window for a plasma treatment device for a plasma treatment device that uses microwaves as a plasma source. The dielectric window is circular-plate-shaped and allows microwaves to propagate. The dielectric window has a recess that has an opening on the lower-surface side and that indents in the plate thickness direction of the dielectric window, and is provided to the lower surface at which plasma is generated when the dielectric window is provided to the plasma treatment device. The recess has a bottom surface extending in the direction perpendicular to the plate thickness direction, and a side surface extending in the plate thickness direction from the circumferential edge of the bottom surface toward the opening of the recess. In addition, an inclined surface extends at an incline relative to the plate thickness direction from the opening-side circumferential edge of the side surface toward the opening of the recess.Type: ApplicationFiled: November 8, 2012Publication date: October 23, 2014Applicant: TOKYO ELECTRON LIMITEDInventors: Caizhong Tian, Naoki Matsumoto, Koji Koyama, Naoki Mihara, Kazuki Takahashi, Jun Yoshikawa, Kazuki Moyama, Takehiro Tanikawa
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Publication number: 20140225504Abstract: A plasma processing apparatus includes a plasma generating device configured to generate a plasma within a processing vessel by using a high frequency wave generated by a microwave generator 41 including a magnetron 42 configured to generate the high frequency wave; detectors 54a and 54b configured to measure a power of a traveling wave that propagates to a load side and a power of a reflected wave reflected from the load side, respectively; and a voltage control circuit 53a configured to control a voltage supplied to the magnetron 42 by a power supply 43. Further, the voltage control circuit 53a includes a load control device configured to supply, to the magnetron 42, a voltage corresponding to a power calculated by adding a power calculated based on the power of the reflected wave measured by the detector 54b to the power of the traveling wave measured by the detector 54a.Type: ApplicationFiled: February 11, 2014Publication date: August 14, 2014Applicant: Tokyo Electron LimitedInventors: Kazushi Kaneko, Naoki Matsumoto, Koji KOYAMA, Kazunori Funazaki, Hideo Kato, Kiyotaka Ishibashi
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Patent number: 8598370Abstract: The present invention provides a process for producing Droxidopa or a pharmaceutically acceptable salt thereof comprising a step of reacting threo-N-phthaloyl-3-(3,4-dihydroxyphenyl)-L-serine represented by the formula (1) with methylamine, whereby a process for producing threo-3-(3,4-dihydroxyphenyl)-L-serine (common name: Droxidopa), which is useful as an agent for treatment of peripheral orthostatic hypotension or an agent for treatment of Parkinson's disease, with high production efficiency and without requiring troublesome operations.Type: GrantFiled: June 29, 2010Date of Patent: December 3, 2013Assignee: Dainippon Sumitomo Pharma Co., Ltd.Inventors: Toshikazu Yagi, Koji Koyama, Masanori Itoh
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Publication number: 20120095256Abstract: The present invention provides a process for producing Droxidopa or a pharmaceutically acceptable salt thereof comprising a step of reacting threo-N-phthaloyl-3-(3,4-dihydroxyphenyl)-L-serine represented by the formula (1) with methylamine, whereby a process for producing threo-3-(3,4-dihydroxyphenyl)-L-serine (common name: Droxidopa), which is useful as an agent for treatment of peripheral orthostatic hypotension or an agent for treatment of Parkinson's disease, with high production efficiency and without requiring troublesome operations.Type: ApplicationFiled: June 29, 2010Publication date: April 19, 2012Applicant: DAINIPPON SUMITOMO PHARMA CO.,LTD.Inventors: Toshikazu Yagi, Koji Koyama, Masanori Itoh
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Publication number: 20120013045Abstract: A matte laminate film comprising a transparent resin film substrate and a matte layer formed on at least one surface of the transparent resin film substrate, in which the transparent resin film substrate is a laminate film comprising a layer (A) formed of a polycarbonate resin and a layer (B) formed of a methacrylic resin which is laminated on at least one surface of the layer (A). The matte laminate film is preferably used as a decorative film having good resistance to whitening and high mechanical properties and surface hardness.Type: ApplicationFiled: September 22, 2011Publication date: January 19, 2012Inventors: Norio SUGIMURA, Koji Koyama, Shinsuke Ochiai
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Publication number: 20100060833Abstract: The invention provides a liquid crystal display protection plate capable of suppressing deterioration of the visibility of an image in the case where a screen of a liquid crystal display is seen through a polarizing filter such as polarizing sunglasses. The liquid crystal display protection plate having an in-plane retardation value of 85 to 300 nm is constituted by a scratching-resistant resin plate in which a cured coating film is disposed on at least one face of a resin substrate. A laminate plate in which a methacrylic resin layer is laminated on at least one face of a polycarbonate resin layer is preferably used as the resin substrate.Type: ApplicationFiled: September 2, 2009Publication date: March 11, 2010Applicant: SUMITOMO CHEMICAL COMPANY, LIITEDInventors: Shinsuke Ochiai, Koji Koyama, Masakazu Sumida
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Patent number: 7614610Abstract: A hoisting and pulling device including a main body frame 2 for forming a load sheave containing space by constituting an inner face by a guide face 25a for guiding a load chain 5 wound around a load sheave, a bearing plate 21b fixedly provided to an inner side of the main body frame 2 for bearing the load sheave and a speed reducing gear on a side of speed reducing means, and a bearing plate 21a for bearing the load sheave 11 on a side of driving means for partitioning the load sheave containing space, the driving means, and the speed reducing means by the bearing plates. According to a hoist of a background art, portability and operability and durability are not compatible with each other and the hoist is not provided with a function of preventing dust of a mechanical brake. Further, a problem is posed also in the operability of the hand chain.Type: GrantFiled: June 5, 2006Date of Patent: November 10, 2009Assignee: Kito CorporationInventors: Desheng Xia, Koji Koyama
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Publication number: 20090252936Abstract: A matte laminate film comprising a transparent resin film substrate and a matte layer formed on at least one surface of the transparent resin film substrate, in which the transparent resin film substrate is a laminate film comprising a layer (A) formed of a polycarbonate resin and a layer (B) formed of a methacrylic resin which is laminated on at least one surface of the layer (A). The matte laminate film is preferably used as a decorative film having good resistance to whitening and high mechanical properties and surface hardness.Type: ApplicationFiled: April 1, 2009Publication date: October 8, 2009Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Norio SUGIMURA, Koji KOYAMA, Shinsuke OCHIAI
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Publication number: 20090252935Abstract: A multilayer film for use in a simultaneous injection molding-lamination method comprising a layer (A) formed of a polycarbonate resin and a layer (B) formed of a methacrylic resin and acrylic rubber particles, which is laminated on at least one surface of the layer (A). The multilayer film is preferably used as a decorative film having high heat resistance and high surface hardness.Type: ApplicationFiled: March 27, 2009Publication date: October 8, 2009Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koji KOYAMA, Shinsuke OCHIAI
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Patent number: 7575223Abstract: An overload preventing apparatus of a hoist characterized in including a drive shaft 2 for driving a load sheave 1, a pressure receiving member 4 outwardly fitted to the drive shaft 2, a drive member 10 for transmitting a drive force from operating means 14 to the drive shaft 2 by way of the pressure receiving member 4, a rotation drive member 12 including means of transmitting the drive force from the operating means 14 to the drive member 10 and releasing an engagement with the drive portion 10 when the operating means 14 is applied with a torque equal to or larger than a predetermined torque value and an elastic member 13 mounted along an axial direction of the drive member between a back face of the rotation drive member 12 and an inner side end face of the operating means 14 to pose a problem that a belleville spring is obliged to be used as urging means, and therefore, a stroke in the axial direction of the urging means is small, also a height of an engaging claw becomes small in accordance with the strType: GrantFiled: March 2, 2006Date of Patent: August 18, 2009Assignee: Kito CorporationInventors: Desheng Xia, Koji Koyama
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Publication number: 20090136733Abstract: An object of the present invention is to provide an extruded resin film which thermally shrinks little and a method for producing the same. The present invention provides an extruded resin film, formed by an extrusion forming method, made of a thermoplastic resin, having a thickness of from 0.03 to 0.5 mm, wherein the extruded resin film has a shrinkage ratio in the extrusion direction, S1 (%), which satisfies the following formula (1) and has a shrinkage ratio in the cross-extrusion direction, S2 (%), of from 0 to 5% when being left at rest for 0.5 hours under a hot atmosphere at the temperature of 20° C. above heat distortion temperature (Th) of the thermoplastic resin: 0.1/X?S1?1.7/X??(1) wherein X is thickness of the extruded resin film (mm).Type: ApplicationFiled: November 25, 2008Publication date: May 28, 2009Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, ESCARBO SHEET CO., LTDInventors: Tomohiro MAEKAWA, Koji Koyama
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Publication number: 20090032787Abstract: A hoisting and pulling device including a main body frame 2 for forming a load sheave containing space by constituting an inner face by a guide face 25a for guiding a load chain 5 wound around a load sheave, a bearing plate 21b fixedly provided to an inner side of the main body frame 2 for bearing the load sheave and a speed reducing gear on a side of speed reducing means, and a bearing plate 21a for bearing the load sheave 11 on a side of driving means for partitioning the load sheave containing space, the driving means, and the speed reducing means by the bearing plates. According to a hoist of a background art, portability and operability and durability are not compatible with each other and the hoist is not provided with a function of preventing dust of a mechanical brake. Further, a problem is posed also in the operability of the hand chain.Type: ApplicationFiled: June 5, 2006Publication date: February 5, 2009Inventors: Desheng Xia, Koji Koyama
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Publication number: 20080199675Abstract: A laminate film having a base layer which contains a thermoplastic resin, and a surface layer which is laminated on at least one surface of the base layer and contains a polycarbonate resin, in which a total thickness of the laminate film is from 20 to 500 ?m and a thickness of the base layer constitutes at least 50% of the total thickness of the laminate film.Type: ApplicationFiled: January 29, 2008Publication date: August 21, 2008Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koji Koyama, Tomohiro Maekawa, Shinsuke Ochiai
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Publication number: 20080173851Abstract: An overload preventing apparatus of a hoist characterized in including a drive shaft 2 for driving a load sheave 1, a pressure receiving member 4 outwardly fitted to the drive shaft 2, a drive member 10 for transmitting a drive force from operating means 14 to the drive shaft 2 by way of the pressure receiving member 4, a rotation drive member 12 including means of transmitting the drive force from the operating means 14 to the drive member 10 and releasing an engagement with the drive portion 10 when the operating means 14 is applied with a torque equal to or larger than a predetermined torque value and an elastic member 13 mounted along an axial direction of the drive member between a back face of the rotation drive member 12 and an inner side end face of the operating means 14 to pose a problem that a belleville spring is obliged to be used as urging means, and therefore, a stroke in the axial direction of the urging means is small, also a height of an engaging claw becomes small in accordance with the strType: ApplicationFiled: March 2, 2006Publication date: July 24, 2008Inventors: Desheng Xia, Koji Koyama
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Publication number: 20080026237Abstract: A mat acrylic resin film having an acrylic resin film substrate made of a resin composition which contains an alkyl methacrylate polymer and acrylic rubber particles, and a mat layer formed on at least one surface of the film substrate from a coating composition containing an acrylic polymer and inorganic fine particles.Type: ApplicationFiled: July 31, 2007Publication date: January 31, 2008Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koji Koyama, Noriko Tokumoto