Patents by Inventor Koji Sakai

Koji Sakai 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: 20170370626
    Abstract: An air conditioning apparatus includes an electric compressor, an inverter, a temperature detection element, and an ECU. The electric compressor compresses a refrigerant drawn from a refrigerant intake port and discharges the refrigerant from a refrigerant discharge port. The inverter is integrated with the electric compressor so as to be cooled by the drawn refrigerant, and operates the electric compressor according to a control signal. The temperature detection element detects a temperature of the inverter. The ECU outputs a control signal to control the inverter. The ECU performs any one or both of a control for reducing a self-cooling amount of the electric compressor and a control for increasing a self-heat generation amount of the inverter with respect to the inverter when the temperature detected by the temperature detection element is lower than a predetermined reference temperature.
    Type: Application
    Filed: January 27, 2016
    Publication date: December 28, 2017
    Inventors: Teruaki OHYAMA, Yuji KAMIYA, Tomoyuki SUMI, Akitomo YAMANAKA, Koji SAKAI
  • Patent number: 9828488
    Abstract: PURPOSE: The present invention provides a polyvinyl chloride resin composition which is superior in heat stability and processability and has less elution from the composition. CONSTITUTION: a polyvinyl chloride resin composition comprising 100 parts by weight of a polyvinyl chloride resin, 10 to 120 parts by weight of di(2-ethylhexyl)terephthalate, and 0.5 to 20 parts by weight of epoxidized vegetable oil having a peroxide number of 5 or less.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: November 28, 2017
    Assignee: RIKEN TECHNOS CORPORATION
    Inventor: Koji Sakai
  • Publication number: 20170324110
    Abstract: A battery includes a case, at least one of a first battery cell and a second battery cell disposed in the case, and a graphite sheet disposed at at least one of a position between the case and the first battery cell and a position between the first battery cell and the second battery cell. The graphite sheet has a terminal portion for taking out an electrical signal.
    Type: Application
    Filed: December 9, 2015
    Publication date: November 9, 2017
    Inventors: TAKESHI FUJII, KOJI SAKAI, KAZUSHI YOSHIDA, YOSHIYA SAKAGUCHI, YUUICHI ABE
  • Publication number: 20170309026
    Abstract: From a plurality of medical images in time phases, a target site is extracted t least one medical image, a reference point is set on each of a target-site side, and a periphery side of the target site which are on across from each other over an outline of the extracted target site, and movement information for the reference points is calculated.
    Type: Application
    Filed: September 9, 2015
    Publication date: October 26, 2017
    Inventors: Ryo Sakamoto, Koji Sakai, Gakuto Aoyama, Kiyohide Satoh
  • Publication number: 20170302139
    Abstract: An electric device includes a case, an electric component that is provided in the case and has a main body section and a lead terminal extending from the main body section, the main body section being supported on the case, a circuit board that is provided in the case and has a connecting hole through which the lead terminal is inserted, and a guide member that has a guide hole positioned relative to the connecting hole, the lead terminal being disposed to penetrate through the guide hole.
    Type: Application
    Filed: October 6, 2015
    Publication date: October 19, 2017
    Inventor: Koji SAKAI
  • Publication number: 20170295662
    Abstract: An electrical device includes two or more electrical components that configure an electrical circuit, at least one or more mechanical component that supports the two or more electrical components and is fixed to the two or more electrical components, and a position-adjustment structure that adjusts positions of the two or more electrical components relative to the one or more mechanical component with the at least two or more electrical components being united together, before the one or more mechanical component is fixed to the two or more electrical components.
    Type: Application
    Filed: September 24, 2015
    Publication date: October 12, 2017
    Applicant: DENSO CORPORATION
    Inventor: Koji SAKAI
  • Publication number: 20170275547
    Abstract: The present invention is provided with a step for preheating coal, a step for heating an extraction solvent, a step for mixing the preheated coal and the extraction solvent heated to a higher temperature than the preheated coal and thereby heating the coal, a step for separating a solution in which a coal component is dissolved from the mixture of the coal and the extraction solvent, and a step for evaporating and separating the extraction solvent from the solution.
    Type: Application
    Filed: September 17, 2015
    Publication date: September 28, 2017
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Koji SAKAI, Norriyuki OKUYAMA, Takuya YOSHIDA, Shigeru KINOSHITA
  • Patent number: 9774281
    Abstract: A motor drive device includes: an inverter circuit having a smoothing capacitor; a drive circuit portion which outputs an operation signal to the inverter circuit; a control portion which controls the drive circuit portion; and an operating voltage generation portion which supplies power to the drive circuit portion and the control portion by generating an operating voltage for the drive circuit portion and the control portion. The inverter circuit converts a DC voltage from a first power supply to an AC voltage and outputs the AC voltage to a multi-phase motor coil. The control portion outputs a signal to the drive circuit portion according to a command value from a high-level control device operating on power from a second power supply outputting a voltage lower than the first power supply. The operating voltage generation portion is capable of generating the operating voltage using power fed from either of the first power supply and the second power supply.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: September 26, 2017
    Assignee: DENSO CORPORATION
    Inventor: Koji Sakai
  • Patent number: 9755565
    Abstract: When a control device determines, based on a sampling number in one period of a target modulation factor waveform, that the sampling number is less than a predetermined value in a case where a two-phase modulation scheme is selected and the target rotation number increases, the control device switches a modulation scheme from the two-phase modulation scheme to a three-phase modulation scheme.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: September 5, 2017
    Assignee: DENSO CORPORATION
    Inventor: Koji Sakai
  • Patent number: 9752088
    Abstract: A method for producing an ashless coal includes an extraction step, a separation step and an ashless coal acquirement step. In the extraction step, a slurry obtained by mixing a coal with a solvent is heated and thereby a solvent-soluble component of the coal is extracted. In the separation step, the slurry is separated into a solution of the solvent-soluble component of the coal and a solid content-concentrated liquid. In the ashless coal acquirement step, an ashless coal is obtained by evaporating and separating the solvent from the solution. The solvent is a mixture of a dissolution medium and a coal extraction accelerator added thereto. The solvent contains a bicyclic aromatic compound that is liquid at ordinary temperature. The coal extraction accelerator containing no nitrogen has two benzene rings and has at least one cyclic structure having no double bond.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: September 5, 2017
    Assignee: Kobe Steel, Ltd.
    Inventors: Koji Sakai, Noriyuki Okuyama, Shigeru Kinoshita, Takuya Yoshida
  • Patent number: 9749517
    Abstract: An image pickup system includes an image pickup unit and a confirmation unit that displays a picked-up image transmitted from the image pickup unit, the image pickup unit and the confirmation unit being separable from each other, and the image pickup system is provided with: a first motion determination section that determines a motion of the image pickup unit; and a control section that instructs the image pickup unit to perform continuous shooting based on a determination result by the first motion determination section when the image pickup unit and the confirmation unit are separated from each other, which enables photographing without missing a photo opportunity.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: August 29, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Akinobu Sato, Yoshihiro Yokomae, Koji Sakai, Keito Fukushima
  • Patent number: 9742987
    Abstract: An image pickup display apparatus includes: a communication section that is capable of receiving a picked-up image from an image pickup unit; a display section that displays the picked-up image received by the communication section; an operation section for controlling image pickup by the image pickup unit; a state determination section that determines a state of a case in which the communication section, the display section and the operation section are housed; and a control section that receives a result of determination performed by the state determination section, to change a user interface provided by the display section and the operation section based on whether or not the case is arranged on another object.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: August 22, 2017
    Assignee: Olympus Corporation
    Inventors: Akinobu Sato, Saori Matsumoto, Koji Sakai, Hiroki Amino, Yoshitaka Sato, Tsuyoshi Yaji, Osamu Nonaka
  • Patent number: 9714394
    Abstract: A method for producing an ashless coal includes a slurry preparation, an extraction, a separation, an ashless coal acquirement, and a by-product acquirement. In the by-product acquirement, a solvent used in the slurry preparation is evaporated and separated from a solid-content concentrated liquid separated in the separation, and then, a by-product coal is acquired. The by-product coal is used as a fuel for heating a slurry obtained in the slurry preparation.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: July 25, 2017
    Assignee: Kobe Steel, Ltd.
    Inventors: Shigeru Kinoshita, Noriyuki Okuyama, Takuya Yoshida, Koji Sakai
  • Publication number: 20170205340
    Abstract: A device includes a light emitting element, a light receiving element, an electronic part capable of processing a signal output from the light receiving element, an optical member covering the light emitting element and the light receiving element, and a board on which the light emitting element, the light receiving element, the electronic part, and the optical member are mounted. The board includes conductor wiring electrically connected to the light receiving element.
    Type: Application
    Filed: April 3, 2017
    Publication date: July 20, 2017
    Inventors: Koji SAKAI, Naoya MATSUO, Narutoshi HOSHINO, Tsutomu SHIMOMURA
  • Patent number: 9698709
    Abstract: A motor driving device includes an inverter circuit having switching elements; and a control device controlling the switching of the switching elements. The control device sets a carrier frequency to f1 when a two-phase modulation scheme is selected, and sets the carrier frequency to f0, which is half of the carrier frequency f1, when a three-phase modulation scheme is selected. Thereby, the frequency of the secondary component of a current flowing in a filter circuit of when selecting the three-phase modulation scheme may be deviated from the resonance frequency of the filter circuit. Accordingly, the current ripple generated in the filter circuit may be reduced even when selectively switching the modulation scheme for the PWM modulation among a plurality of modulation schemes.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: July 4, 2017
    Assignee: DENSO CORPORATION
    Inventor: Koji Sakai
  • Patent number: 9699389
    Abstract: An image displaying apparatus comprises, an operation input detector for detecting a touch operation on a display screen of a display, an image position selection section for selecting position of part of an image that has been displayed on the display, an image identification section for recognizing an image region that has been selected based on image position that has been selected by the image position selection section, and a touch operation that has been detected by the operation input detector, as a main subject image region, and a special image processing section for applying special effect image processing to a region other than at least part of the main subject image region that has been selected, wherein the special image processing section varies the special effect processing intensity in accordance with a touch operation that has been detected by the operation input detector.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: July 4, 2017
    Assignee: OLYMPUS CORPORATION
    Inventor: Koji Sakai
  • Patent number: 9692956
    Abstract: An imaging apparatus includes: an imaging unit that generates image data; a feature information generation unit that generates feature information smaller in data amount than the image data, the feature information indicating features of a subject image included in an image corresponding to the image data; an imaging-side first and second communication units; a communication status determination unit that determines the status of communication between an external communication device and the imaging-side first communication unit; and an imaging-side communication control unit that transmits the feature information to the communication device via the imaging-side second communication unit when the status of communication between the communication device and the imaging-side first communication unit is not favorable.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: June 27, 2017
    Assignee: Olympus Corporation
    Inventors: Akinobu Sato, Keito Fukushima, Saori Matsumoto, Koji Sakai, Yoshihiro Yokomae, Hiroki Amino, Tsuyoshi Yaji, Osamu Nonaka
  • Patent number: 9679391
    Abstract: An image pickup system is an image pickup system in which an image pickup section and a confirmation section that displays a picked-up image from the image pickup section are separable, the image pickup system including: a first motion determination section that determines a motion of the image pickup section; a second motion determination section that determines a motion of the confirmation section; and a control section that controls at least one of the image pickup section and the confirmation section by obtaining a relationship between the motion of the image pickup section and the motion of the confirmation section based on determination results of the first and second motion determination sections.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: June 13, 2017
    Assignee: Olympus Corporation
    Inventors: Akinobu Sato, Saori Matsumoto, Koji Sakai, Hiroki Amino, Kensuke Ishii, Tsuyoshi Yaji, Osamu Nonaka
  • Publication number: 20170163201
    Abstract: In a control device controlling a drive circuit that drives an in-vehicle electric motor based on an output voltage of a DC power source, a capacitor for stabilizing the output voltage is disposed between the DC power source and the drive circuit, and a relay switch is disposed between the DC power source and the capacitor. The control device includes: an anomaly determining device that determines whether an anomaly occurs in a vehicle; and a discharge control device that controls the drive circuit to generate a torque at the electric motor based on an output voltage of the capacitor in a state where the relay switch disconnects between the DC power source and the capacitor when the anomaly determining device determines that the anomaly occurs in the vehicle.
    Type: Application
    Filed: August 3, 2015
    Publication date: June 8, 2017
    Inventors: Shinji NAKAMOTO, Koji SAKAI
  • Patent number: D787670
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: May 23, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Tatsuhiko Suzuki, Koji Sakai