Patents by Inventor Keisuke Sasaki

Keisuke Sasaki 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: 20170254262
    Abstract: An engine includes a cylinder pressure sensor inserted into a through-hole of a cylinder head. A sealing member that seals between a hole wall surface and a body-side wall surface. A dimension relationship of D1<D3×(D4/D2) is satisfied where: D1 is a distance in a direction of a central axis from a reference position of the sealing member to a first given position; D2 is a distance between the hole wall surface and the body-side wall surface at the first given position; D3 is a distance in the direction of the central axis from the reference position to a second given position; and D4 is a distance between the hole wall surface and the body-side wall surface at the second given position.
    Type: Application
    Filed: March 1, 2017
    Publication date: September 7, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke SASAKI, Hajime TAKAGAWA, Yoichiro GOYA
  • Publication number: 20170251118
    Abstract: A recording apparatus includes a rotating body that opens and closes an apparatus main body which is provided with a recording portion that performs recording on a medium and rotates between a first posture that is a closed posture and a second posture that is an open posture, a biasing unit that biases the rotating body in an opening direction, and a biasing release unit that releases an action of a biasing force applied by the biasing unit to the rotating body in a range from a third posture, which is a posture between the first posture and the second posture, to the second posture.
    Type: Application
    Filed: February 17, 2017
    Publication date: August 31, 2017
    Inventors: Keisuke SASAKI, Yosuke NAKANO, Satoshi YOSHINO
  • Publication number: 20170030283
    Abstract: A control apparatus for an internal combustion engine is configured to: calculate measured data of MFB using an output signal of an in-cylinder pressure sensor after performing a first low-pass filtering; execute engine control based on the measured value of a specified fraction combustion point that is calculated based on the measured data of MFB; and prohibit the engine control when the first correlation index value is less than a first determination value and a first correlation degree is lower than a first degree.
    Type: Application
    Filed: July 26, 2016
    Publication date: February 2, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Keisuke SASAKI
  • Publication number: 20170009672
    Abstract: A control apparatus for an internal combustion engine is configured to: calculate measured data of MFB in synchrony with crank angle based on in-cylinder pressure detected by an in-cylinder pressure sensor; execute engine control based on a measured value of a specified fraction combustion point that is calculated based on the measured data of MFB; calculate a first correlation index value for MFB and a second correlation index value for dMFB/d?; and suspend the engine control when the first correlation index value is less than a first determination value and the second correlation index value is greater than or equal to a second determination value.
    Type: Application
    Filed: July 6, 2016
    Publication date: January 12, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke SASAKI, Yoshihiro SAKAYANAGI
  • Patent number: 9435707
    Abstract: An intra-cylinder pressure sensor fault diagnostic device that ensures an opportunity for fault diagnosis in a wide operation region, and can accurately detect an intra-cylinder pressure with a high S/N ratio. The fault diagnostic device for an intra-cylinder pressure sensor, which outputs a value corresponding to an intra-cylinder pressure of an internal combustion engine delays ignition timing so that firing timing comes after a compression top dead center to generate peaks of the intra-cylinder pressure before firing and after firing respectively. When the ignition timing is delayed, at least one of an output value of the intra-cylinder pressure sensor in the peak of the intra-cylinder pressure before firing (hereinafter, called a pre-firing output peak value) and a crank angle thereof is detected. A fault of the intra-cylinder pressure sensor is determined by using at least one of the pre-firing output peak value and the crank angle thereof.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: September 6, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke Sasaki, Shigeyuki Urano
  • Publication number: 20160245210
    Abstract: A control device for an internal combustion engine is provided that can detect the adherence of deposits to a cylinder pressure sensor without subjecting the internal combustion engine to an impact or the like. A control device for an internal combustion engine equipped with a cylinder pressure sensor detects changes in the sensitivity of the cylinder pressure sensor. If the control device detects a decrease in the sensitivity of the cylinder pressure sensor after detecting an increase in the sensitivity of the cylinder pressure sensor, the control device determines that deposits are adhered to the cylinder pressure sensor.
    Type: Application
    Filed: September 26, 2014
    Publication date: August 25, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke SASAKI, Masakatsu NAGAI, Shigeyuki URANO
  • Publication number: 20160208761
    Abstract: An internal combustion engine is provided that executes fuel injection and ignition with respect to a cylinder that remains stopped in an expansion stroke, and that performs ignition startup that starts up the internal combustion engine by rotationally driving a crankshaft by pressure of combustion accompanying the fuel injection. A motor generator (MG) that can rotationally drive the crankshaft is provided. A required assist torque Ast_trq exerted by the MG at the time of ignition startup is determined based on a maximum value Cyl_prss of an in-cylinder pressure that is detected by an in-cylinder pressure sensor at the time of ignition startup. The MG is controlled at the time of ignition startup based on the required assist torque Ast_trq that is determined.
    Type: Application
    Filed: July 23, 2014
    Publication date: July 21, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masakatsu NAGAI, Shigeyuki URANO, Keisuke SASAKI, Rui ONODA
  • Publication number: 20160181133
    Abstract: A substrate processing apparatus includes a hot plate which supports and heats a substrate, a light source which emits etching energy beam such that the etching energy beam etches the substrate held by the hot plate, a window device which is positioned between the light source and the hot plate and transmits the etching energy beam emitted by the light source toward the substrate, and an adjusting device which adjusts emission amounts of the etching energy beam from portions of the window device toward the substrate such that the adjusting device reduces difference in etching amounts of portions of the substrate.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 23, 2016
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Keisuke YOSHIDA, Yuzo OHISHI, Keisuke SASAKI, Shoichi TERADA
  • Publication number: 20150290955
    Abstract: A recording apparatus includes a hopper which is provided with a mounting surface on which a medium is set, and which is provided to be capable of swinging between a first posture in which the mounting surface of the medium is in a fallen state, and a second posture in which the mounting surface is in an uplifted state, a first pathway that delivers rolled paper, as the medium, to the hopper from an upstream side thereof, a second pathway that delivers cut form paper, as the medium, to the hopper from an upstream side thereof, and a first sensor that detects the medium in the first pathway, wherein the hopper swings from the first posture in a direction that assumes the second posture on the basis of detection of the medium by the first sensor.
    Type: Application
    Filed: April 3, 2015
    Publication date: October 15, 2015
    Inventors: Narihiro OKI, Shinji KANEMARU, Shintaro MIYAMOTO, Keisuke SASAKI
  • Patent number: 8871073
    Abstract: An electrodeionization apparatus for producing deionized water comprises a deionization treatment unit including deionization chamber D and a pair of concentration chambers C1 and C2 placed adjacent to deionization chamber D on opposite sides thereof and those concentration chambers are filled with anion exchangers. The deionization chamber D is partitioned by an ion exchange membrane into first small deionization chamber D-1 adjacent to concentration chamber C1 and second small deionization chamber D-2 adjacent to concentration chamber C2. First small deionization chamber D-1 is filled with an anion exchanger. Second small deionization chamber D-2 is filled with an anion exchanger and a cation exchanger in a sequence such that the ion exchanger, through which water that is to be treated finally passes, is the anion exchanger.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: October 28, 2014
    Assignee: Organo Corporation
    Inventors: Kazuya Hasegawa, Yuji Asakawa, Keisuke Sasaki
  • Publication number: 20140260574
    Abstract: An intra-cylinder pressure sensor fault diagnostic device that ensures an opportunity for fault diagnosis in a wide operation region, and can accurately detect an intra-cylinder pressure with a high S/N ratio. The fault diagnostic device for an intra-cylinder pressure sensor, which outputs a value corresponding to an intra-cylinder pressure of an internal combustion engine delays ignition timing so that firing timing comes after a compression top dead center to generate peaks of the intra-cylinder pressure before firing and after firing respectively. When the ignition timing is delayed, at least one of an output value of the intra-cylinder pressure sensor in the peak of the intra-cylinder pressure before firing (hereinafter, called a pre-firing output peak value) and a crank angle thereof is detected.
    Type: Application
    Filed: November 11, 2011
    Publication date: September 18, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke Sasaki, Shigeyuki Urano
  • Publication number: 20140202867
    Abstract: Provided is an electrodeionization apparatus for producing deionized water, capable of removing or reducing a biased flow of electric current in a deionization chamber. In the electrodeionization apparatus for producing deionized water, at least one deionization treatment unit including the deionization chamber and a pair of concentration chambers adjacent to both sides of the deionization chamber is disposed between a cathode and an anode. In the deionization chamber, anion exchanger layers and cation exchanger layers are stacked in an order in which a last ion exchanger layer through which water to be treated passes is an anion exchanger layer. A bipolar membrane is formed on the cathode side of the anion exchanger layer in the deionization chamber. The anion exchange membrane of the bipolar membrane is in contact with the anion exchanger layer.
    Type: Application
    Filed: August 1, 2012
    Publication date: July 24, 2014
    Applicant: ORGANO CORPORATION
    Inventors: Naho Ikeda, Yuji Asakawa, Keisuke Sasaki, Kazuya Hasegawa
  • Patent number: 8408234
    Abstract: A process liquid supply system includes a pure water supply source connected to a process vessel through a supply pipe; a chemical liquid tank that stores a chemical liquid and supplies the chemical liquid stored therein to the supply pipe; and a compressed gas supply source connected to the chemical liquid tank through a compressed gas supply pipe. A pressure adjusting part is disposed on the compressed gas supply pipe at a position between the compressed gas supply source and the chemical liquid tank. The pressure adjusting part is controlled so that the pressure of the compressed gas supplied from the compressed gas supply source to the chemical liquid tank is gradually or stepwise increased after the supply of the chemical liquid from the chemical liquid tank to the supply pipe is started so that the concentration of the processing liquid remains at desired level.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: April 2, 2013
    Assignee: Tokyo Electron Limited
    Inventors: Keisuke Sasaki, Kazuyoshi Eshima
  • Publication number: 20130068624
    Abstract: An electrodeionization apparatus for producing deionized water comprises a deionization treatment unit including deionization chamber D and a pair of concentration chambers C1 and C2 placed adjacent to deionization chamber D on opposite sides thereof and those concentration chambers are filled with anion exchangers. The deionization chamber D is partitioned by an ion exchange membrane into first small deionization chamber D-1 adjacent to concentration chamber C1 and second small deionization chamber D-2 adjacent to concentration chamber C2. First small deionization chamber D-1 is filled with an anion exchanger. Second small deionization chamber D-2 is filled with an anion exchanger and a cation exchanger in a sequence such that the ion exchanger, through which water that is to be treated finally passes, is the anion exchanger.
    Type: Application
    Filed: May 20, 2011
    Publication date: March 21, 2013
    Applicant: ORGANO CORPORATION
    Inventors: Kazuya Hasegawa, Yuji Asakawa, Keisuke Sasaki
  • Publication number: 20110182156
    Abstract: Optical disc recording processing of recording data to be recorded on an optical disc having a plurality of recording layers at a recording velocity depending on the radial position includes use pattern selection processing of selecting a use pattern in which given recordable regions included in a data zone of the optical disc are used for recording of the data to be recorded in given use order, among a plurality of use patterns different in the number of recording layers used, so that the total recording time is shortened, based on given conditions including at least the capacity of the data to be recorded, the recording velocities of use regions in the use pattern, and the number of interlayer shifts in the use pattern. The data to be recorded is recorded according to the use pattern selected in the use pattern selection processing.
    Type: Application
    Filed: April 6, 2011
    Publication date: July 28, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: KEISUKE SASAKI, HIROMICHI SHIMADA, HIROYUKI YABUNO
  • Publication number: 20100043835
    Abstract: A second line 44 is branched from a first line 22 connected to a processing part 10 configured to process a wafer W. A plurality of third lines (an ammonia-water supply line 48, a hydrochloric-acid supply line 52, and a hydrofluoric-acid line 56) are branched from the second line 44. The third lines are respectively provided with valves 48a, 52a, and 56a at locations branched from the second line 44. Chemical-liquid supply sources (an ammonia-water supply source 46, a hydrochloric-acid supply source 50, and a hydrofluoric-acid supply source 54) are connected to the respective third lines, whereby chemical liquids can be supplied from these chemical-liquid supply sources to the respective third lines.
    Type: Application
    Filed: August 24, 2009
    Publication date: February 25, 2010
    Applicant: Tokyo Electron Limited
    Inventors: Kazuyoshi ESHIMA, Keisuke Sasaki, Hiroshi Komiya
  • Publication number: 20090323485
    Abstract: An information recording precision calculating section (104) calculates an information recording precision for each recording power based on a reproduced RF signal obtained when reproducing recorded information with a predetermined reproduction laser beam intensity after a recording operation of recording the information on an optical disc (200) with a plurality of different recording powers. A relationship information obtaining section (140) obtains relationship information representing a relationship between the recording power and the information recording precision based on the information recording precision calculated by the information recording precision calculating section (104). A relationship information storing section (130) stores relationship information obtained by the relationship information obtaining section (140).
    Type: Application
    Filed: July 17, 2007
    Publication date: December 31, 2009
    Inventors: Keisuke Sasaki, Noriaki Hamada
  • Publication number: 20070221271
    Abstract: A process liquid supply system of the present invention includes: a pure water supply source connected to a process vessel through a supply pipe; a chemical liquid tank that stores a chemical liquid and supplies the chemical liquid stored therein to the supply pipe; and a compressed gas supply source connected to the chemical liquid tank through a compressed gas supply pipe, the compressed gas supply source supplying a compressed gas to the chemical liquid tank to supply the chemical liquid from the chemical liquid tank to the supply pipe. A pressure adjusting part is disposed on the compressed gas supply pipe at a position between the compressed gas supply source and the chemical liquid tank. The pressure adjusting part adjusting a pressure of the compressed gas supplied from the compressed gas supply source.
    Type: Application
    Filed: March 16, 2007
    Publication date: September 27, 2007
    Inventors: Keisuke Sasaki, Kazuyoshi Eshima
  • Patent number: 6204583
    Abstract: A brush-less motor has a center piece, which has a flange portion fixed to a motor holder and a cylindrical portion fixed to a stator core at the outer periphery of the cylindrical portion. The cylindrical portion has a pair of bearings disposed inside the cylindrical portion to rotatably support said shaft. The center piece is formed by a pressing machine to omit a finishing machine work.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: March 20, 2001
    Assignee: Asmo Co., Ltd.
    Inventors: Keisuke Sasaki, Kenji Yoshimura, Toshio Ishikawa
  • Patent number: 6107708
    Abstract: A brushless motor includes a stator attached to a motor case and a rotor. A circuit substrate is attached to the motor case. The substrate includes an electric circuit, which supplies electric current to the stator thereby rotating the rotor. A fan generates and moves air in accordance with rotation of the rotor. A duct guides some of the air moved by the fan to the stator. A flange extends from the stator. The air guided by the duct flows along the flange. This structure reduces the size of the brushless motor while increasing its power.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: August 22, 2000
    Assignee: Asmo, Co., Ltd.
    Inventors: Mineo Yamaguchi, Hideto Matsuzaki, Keisuke Sasaki, Masaaki Shimizu, Shinji Iwama, Satoru Asai