Patents by Inventor Keiji Yoshimura

Keiji Yoshimura 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).

  • Patent number: 9796271
    Abstract: There is provided an air-conditioning apparatus including an auxiliary power supply that, when a voltage from an overhead line extending over sections powered by different power sources is stepped down with a transformer, converts the voltage into a low-voltage DC voltage and that, when a voltage from the overhead line is a DC voltage, is directly fed with the voltage and converts it into the low-voltage DC voltage that is the same as the converted DC voltage, and further including an inverter device that converts the DC voltage from the auxiliary power supply into an AC voltage and that supplies the AC voltage to a drive unit of a refrigeration cycle apparatus.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: October 24, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Keiji Yoshimura, Tatsuaki Umezaki
  • Patent number: 9541322
    Abstract: An outdoor unit disposed under a floor of a vehicle and including a compressor and an outdoor heat exchanger serving as a condenser during a cooling operation, an indoor unit disposed at a ceiling portion of the vehicle, including an indoor heat exchanger serving as an evaporator during the cooling operation, and connected to the outdoor unit by refrigerant pipes, and an inverter unit including a cooling heat exchanger serving as an evaporator, an air-conditioning inverter device, and a cooling air-sending device sucking outdoor air for heat exchange by the cooling heat exchanger and cooling the inverter device by cooled air obtained by the heat exchange are provided; and the cooling heat exchanger is connected in parallel to the outdoor unit by refrigerant pipes.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: January 10, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Keiji Yoshimura, Kazuhiro Horita
  • Publication number: 20140290297
    Abstract: An outdoor unit disposed under a floor of a vehicle and including a compressor and an outdoor heat exchanger serving as a condenser during a cooling operation, an indoor unit disposed at a ceiling portion of the vehicle, including an indoor heat exchanger serving as an evaporator during the cooling operation, and connected to the outdoor unit by refrigerant pipes, and an inverter unit including a cooling heat exchanger serving as an evaporator, an air-conditioning inverter device, and a cooling air-sending device sucking outdoor air for heat exchange by the cooling heat exchanger and cooling the inverter device by cooled air obtained by the heat exchange are provided; and the cooling heat exchanger is connected in parallel to the outdoor unit by refrigerant pipes.
    Type: Application
    Filed: December 27, 2011
    Publication date: October 2, 2014
    Applicant: Mitsubishi Electric Corporation
    Inventors: Keiji Yoshimura, Kazuhiro Horita
  • Publication number: 20140028091
    Abstract: There is provided an air-conditioning apparatus including an auxiliary power supply that, when a voltage from an overhead line extending over sections powered by different power sources is stepped down with a transformer, converts the voltage into a low-voltage DC voltage and that, when a voltage from the overhead line is a DC voltage, is directly fed with the voltage and converts it into the low-voltage DC voltage that is the same as the converted DC voltage, and further including an inverter device that converts the DC voltage from the auxiliary power supply into an AC voltage and that supplies the AC voltage to a drive unit of a refrigeration cycle apparatus.
    Type: Application
    Filed: May 29, 2012
    Publication date: January 30, 2014
    Inventors: Keiji Yoshimura, Tatsuaki Umezaki
  • Patent number: 8558986
    Abstract: An apparatus comprises a controller configured to generate a first list of measurement points arranged symmetrically with respect to a center of a shot region along a direction of scanning at a predetermined pitch, and a control by the controller includes a first control which causes a measurement device to measure a position of a surface with respect to each measurement point included in the first list, and a second control which causes the measurement device to measure the position with respect to each measurement point included in a second list obtained by excluding, from the first list, at least one of a measurement point with respect to which measurement is performed last in a first shot region and a measurement point with respect to which measurement is performed first in a second shot region next to the first shot region.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: October 15, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Keiji Yoshimura
  • Publication number: 20100123884
    Abstract: An apparatus comprises a controller configured to generate a first list of measurement points arranged symmetrically with respect to a center of a shot region along a direction of scanning at a predetermined pitch, and a control by the controller includes a first control which causes a measurement device to measure a position of a surface with respect to each measurement point included in the first list, and a second control which causes the measurement device to measure the position with respect to each measurement point included in a second list obtained by excluding, from the first list, at least one of a measurement point with respect to which measurement is performed last in a first shot region and a measurement point with respect to which measurement is performed first in a second shot region next to the first shot region.
    Type: Application
    Filed: November 12, 2009
    Publication date: May 20, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Keiji Yoshimura
  • Patent number: 7563510
    Abstract: In a scroll compressor, a thrust ring is mounted between a movable-side flat plate part of a movable scroll and a housing. An upper surface of the thrust ring slides relative to a lower surface of the movable-side flat plate part and supports a thrust load from the movable scroll. A resinous coating is formed on the upper surface of the thrust ring which slides relative to the movable-side flat plate part. The resinous coating is composed primarily of fluorocarbon resin and polyamide-imide resin. The component percentage of the polyamide-imide resin in the primary component of the resinous coating is set, such that it is not less than 65% by mass nor more than 85% by mass.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: July 21, 2009
    Assignee: Daikin Industries, Ltd.
    Inventors: Tomoko Nogawa, Keiji Yoshimura, Tomihiko Yanagiguchi, Takeyoshi Okawa
  • Patent number: 7502098
    Abstract: With respect to each of a plurality of shots on a substrate, a line or surface is calculated which approximates a plurality of positions of the surface of the substrate detected by a detector with respect to a plurality of places, and the difference between the position of the surface detected by the detector and the position of the line or surface in the direction of the optical axis of a projection optical system is calculated with respect to each of the plurality of places. With respect to each of the plurality of places, the differences are averaged over the plurality of shots to determine an offset value.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: March 10, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventor: Keiji Yoshimura
  • Publication number: 20080062395
    Abstract: With respect to each of a plurality of shots on a substrate, a line or surface is calculated which approximates a plurality of positions of the surface of the substrate detected by a detector with respect to a plurality of places, and the difference between the position of the surface detected by the detector and the position of the line or surface in the direction of the optical axis of a projection optical system is calculated with respect to each of the plurality of places. With respect to each of the plurality of places, the differences are averaged over the plurality of shots to determine an offset value.
    Type: Application
    Filed: August 27, 2007
    Publication date: March 13, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Keiji Yoshimura
  • Publication number: 20070031275
    Abstract: In a scroll compressor, a thrust ring is mounted between a movable-side flat plate part of a movable scroll and a housing. An upper surface of the thrust ring slides relative to a lower surface of the movable-side flat plate part and supports a thrust load from the movable scroll. A resinous coating is formed on the upper surface of the thrust ring which slides relative to the movable-side flat plate part. The resinous coating is composed primarily of fluorocarbon resin and polyamide-imide resin. The component percentage of the polyamide-imide resin in the primary component of the resinous coating is set, such that it is not less than 65% by mass nor more than 85% by mass.
    Type: Application
    Filed: January 12, 2005
    Publication date: February 8, 2007
    Applicant: Daikin Industries, Ltd
    Inventors: Tomoko Nogawa, Keiji Yoshimura, Tomihiko Yanagiguchi, Takeyoshi Okawa
  • Patent number: 6934004
    Abstract: An exposure apparatus includes a measurement device for measuring a distortion of an image of a reticle formed on a substrate by scanning exposure, a calculation device for calculating a position compensation parameter for each distortion, by separating the measured distortion into a symmetrical component and an asymmetrical component, and a control device for controlling scanning of either the reticle or the substrate based on the position compensation parameter calculated by the calculation device.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: August 23, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Keiji Yoshimura
  • Publication number: 20030174298
    Abstract: In order to compensate a distortion in each shot of scanning exposure with a high degree of accuracy, distortion data between a reticle image formed on a reticle and a transfer image transferred onto a substrate, which is generated in each shot at set scanning speed, is set in shot unit (S601, S602), and a compensation driving value is calculated based on the set distortion data (S603). The distortion data is compensated by the calculated compensation driving value, and positioning of the reticle and/or the substrate is controlled in shot unit (S604, S605).
    Type: Application
    Filed: March 13, 2003
    Publication date: September 18, 2003
    Applicant: Canon Kabushiki Kaisha
    Inventor: Keiji Yoshimura
  • Patent number: 6619062
    Abstract: A scroll compressor comprises an operating state detection part (27) detecting an operating state, a variable-speed motor (28), a control part (26) and an unloading mechanism (12) serving as capacity control means. The control part (26) controls operation of the unloading mechanism (12) and the rotational frequency of the motor (28) in response to the operating state detected by the operating state detection part (27). An air conditioner comprises the aforementioned scroll compressor, a condenser (23), an expansion valve (24) and an evaporator (25).
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: September 16, 2003
    Assignee: Daikin Industries, Ltd.
    Inventors: Yoshitaka Shibamoto, Kenji Matsuba, Keiji Yoshimura
  • Patent number: 6424405
    Abstract: An exposure apparatus includes an illumination system for illuminating, with pulse light, a reticle having a pattern formed thereon, a reticle stage for scanning the reticle, a projection system for projecting the pattern onto a wafer, a wafer stage for scanning the wafer, an interface into which information related to the reticle is inputted and a controller for changing illumination conditions on the basis of the information inputted to the interface. The reticle is illuminated with the pulse light while the reticle and the wafer are scanned, by which the pattern of the reticle is transferred to the wafer sequentially.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: July 23, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Kurosawa, Kunitaka Ozawa, Noriyasu Hasegawa, Keiji Yoshimura
  • Patent number: 6383940
    Abstract: A method of exposing a substrate to a pattern of a reticle by synchronously scanning the reticle and the substrate in a direction relative to a slit-shaped illumination area which is formed on the reticle. The method includes steps of providing a reticle on which first and second patterns are formed along the direction, with a space therebetween, exposing a substrate to the first and second patterns of the reticle under different exposure conditions in one scanning process and changing over the exposure conditions when the illumination area exists in the space on the reticle during the one scanning process.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: May 7, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventor: Keiji Yoshimura
  • Publication number: 20020039845
    Abstract: An exposure apparatus that selects an exposure method that matches exposure conditions, from among a plurality of exposure methods includes an exposure method determining unit for switching between exposure methods and determining an exposure method taking into account at least two of a plurality of evaluation item values calculated based on the exposure conditions, and the exposure method determining unit switches among constant speed scanning exposure method, accelerated/decelerated scanning exposure method and static exposure method.
    Type: Application
    Filed: September 28, 2001
    Publication date: April 4, 2002
    Inventor: Keiji Yoshimura
  • Patent number: 6289359
    Abstract: A file managing method includes subdividing an original file including records, each record including fields, for storing blocks, each block including fields subdivided from more than one of the records; coupling the blocks to into groups of blocks; rearranging the groups of blocks, and, after rearranging the groups of blocks, coupling the groups of blocks to each other to produce a transposed file; and accessing the fields from the transposed file, at random.
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: September 11, 2001
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Takaaki Ando, Mitsunori Kori, Manabu Michishita, Takayuki Hayakawa, Keiji Yoshimura
  • Publication number: 20010012100
    Abstract: An exposure apparatus includes a light source for providing pulse light, a mask scanning machanism for scanning a mask having a pattern, a wafer scanning mechanism for scanning a wafer onto which the pattern is to be projected, wherein the mask scanning machanism and the wafer scanning mechanism serve to scan the mask and the wafer in a timed relation so that the mask is illuminated while superposing portions of an illumination region defined by the pulse light and being narrower than the pattern such that the pattern is lithographically transferred onto the wafer, and a scan speed determining system for determining scan speed of the mask and the wafer, the scan speed being variable on the basis of a tolerance ratio of exposure non-uniformness.
    Type: Application
    Filed: February 28, 2001
    Publication date: August 9, 2001
    Inventors: Hiroshi Kurosawa, Kunitaka Ozawa, Noriyasu Hasegawa, Keiji Yoshimura
  • Patent number: 6217301
    Abstract: A plurality of compression chambers are formed between first and second spiral bodies 1 and 2, and refrigerant discharge timing advancing means is provided for advancing the timing at which refrigerant is discharged from a first compression chamber 4 which is one of a pair of compression chambers located nearest to the center, relative to the refrigerant discharge timing of the second compression chamber 5. The refrigerant discharge timing advancing means includes an extension 1c of the first spiral body 1 and an opening advancing portion 3a of a discharge port 3.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: April 17, 2001
    Assignee: Daikin Industries, Ltd.
    Inventors: Hiroyuki Kuroiwa, Keiji Yoshimura, Toshiaki Yoshii, Shusaku Ueda, Mikio Kajiwara
  • Patent number: 6204911
    Abstract: An exposure apparatus includes a light source for providing pulse light, a mask scanner for scanning a mask having a pattern, a wafer scanner for projecting a wafer onto which the pattern is to be projected and a light emission period determining device. The mask scanner and the wafer scanner scan the mask and the wafer in a timed relation so that the mask is illuminated while superposing portions of an illumination region defined by the pulse light and being narrower than the pattern such that the pattern is lithographically transferred onto the wafer. The light emission period determining device determines a period of emission of the pulse light, prior to an actual exposure process, wherein the emission period can be changed in accordance with a required precision of an integrated exposure amount.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: March 20, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Kurosawa, Kunitaka Ozawa, Noriyasu Hasegawa, Keiji Yoshimura