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).

  • Publication number: 20150206712
    Abstract: 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: Application
    Filed: April 1, 2015
    Publication date: July 23, 2015
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Naoki MATSUMOTO, Koji KOYAMA, Jun YOSHIKAWA
  • Publication number: 20150155139
    Abstract: 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: Application
    Filed: December 1, 2014
    Publication date: June 4, 2015
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Jun YOSHIKAWA, Naoki MATSUMOTO, Masayuki SHINTAKU, Koji KOYAMA, Naoki MIHARA, Yugo TOMITA
  • Patent number: 9048070
    Abstract: 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: Grant
    Filed: November 8, 2012
    Date of Patent: June 2, 2015
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Caizhong Tian, Naoki Matsumoto, Koji Koyama, Naoki Mihara, Kazuki Takahashi, Jun Yoshikawa, Kazuki Moyama, Takehiro Tanikawa
  • Publication number: 20150096882
    Abstract: 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: Application
    Filed: June 14, 2013
    Publication date: April 9, 2015
    Inventors: Naoki Matsumoto, Koji Koyama, Toshihisa Ozu, Shota Yoshimura
  • Publication number: 20150014615
    Abstract: 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: Application
    Filed: February 21, 2013
    Publication date: January 15, 2015
    Inventors: Koji Koyama, Nobuyoshi Mukawa
  • Publication number: 20140312767
    Abstract: 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: Application
    Filed: November 8, 2012
    Publication date: October 23, 2014
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Caizhong Tian, Naoki Matsumoto, Koji Koyama, Naoki Mihara, Kazuki Takahashi, Jun Yoshikawa, Kazuki Moyama, Takehiro Tanikawa
  • Publication number: 20140225504
    Abstract: 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: Application
    Filed: February 11, 2014
    Publication date: August 14, 2014
    Applicant: Tokyo Electron Limited
    Inventors: Kazushi Kaneko, Naoki Matsumoto, Koji KOYAMA, Kazunori Funazaki, Hideo Kato, Kiyotaka Ishibashi
  • Patent number: 8598370
    Abstract: 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: Grant
    Filed: June 29, 2010
    Date of Patent: December 3, 2013
    Assignee: Dainippon Sumitomo Pharma Co., Ltd.
    Inventors: Toshikazu Yagi, Koji Koyama, Masanori Itoh
  • Publication number: 20120095256
    Abstract: 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: Application
    Filed: June 29, 2010
    Publication date: April 19, 2012
    Applicant: DAINIPPON SUMITOMO PHARMA CO.,LTD.
    Inventors: Toshikazu Yagi, Koji Koyama, Masanori Itoh
  • Publication number: 20120013045
    Abstract: 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: Application
    Filed: September 22, 2011
    Publication date: January 19, 2012
    Inventors: Norio SUGIMURA, Koji Koyama, Shinsuke Ochiai
  • Publication number: 20100060833
    Abstract: 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: Application
    Filed: September 2, 2009
    Publication date: March 11, 2010
    Applicant: SUMITOMO CHEMICAL COMPANY, LIITED
    Inventors: Shinsuke Ochiai, Koji Koyama, Masakazu Sumida
  • Patent number: 7614610
    Abstract: 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: Grant
    Filed: June 5, 2006
    Date of Patent: November 10, 2009
    Assignee: Kito Corporation
    Inventors: Desheng Xia, Koji Koyama
  • Publication number: 20090252936
    Abstract: 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: Application
    Filed: April 1, 2009
    Publication date: October 8, 2009
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Norio SUGIMURA, Koji KOYAMA, Shinsuke OCHIAI
  • Publication number: 20090252935
    Abstract: 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: Application
    Filed: March 27, 2009
    Publication date: October 8, 2009
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Koji KOYAMA, Shinsuke OCHIAI
  • Patent number: 7575223
    Abstract: 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 str
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: August 18, 2009
    Assignee: Kito Corporation
    Inventors: Desheng Xia, Koji Koyama
  • Publication number: 20090136733
    Abstract: 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: Application
    Filed: November 25, 2008
    Publication date: May 28, 2009
    Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, ESCARBO SHEET CO., LTD
    Inventors: Tomohiro MAEKAWA, Koji Koyama
  • Publication number: 20090032787
    Abstract: 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: Application
    Filed: June 5, 2006
    Publication date: February 5, 2009
    Inventors: Desheng Xia, Koji Koyama
  • Publication number: 20080199675
    Abstract: 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: Application
    Filed: January 29, 2008
    Publication date: August 21, 2008
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Koji Koyama, Tomohiro Maekawa, Shinsuke Ochiai
  • Publication number: 20080173851
    Abstract: 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 str
    Type: Application
    Filed: March 2, 2006
    Publication date: July 24, 2008
    Inventors: Desheng Xia, Koji Koyama
  • Publication number: 20080026237
    Abstract: 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: Application
    Filed: July 31, 2007
    Publication date: January 31, 2008
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Koji Koyama, Noriko Tokumoto