Patents by Inventor Yasushi Fujiwara

Yasushi Fujiwara 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: 10876488
    Abstract: A failure diagnosis device for an in-cylinder pressure sensor is provided, which includes an in-cylinder pressure sensor, and an engine controller comprised of circuitry configured to execute a diagnosis module into which a signal of the sensor is inputted, to diagnose a failure of the sensor based on the signal. The diagnosis module includes a reading module configured to read the signal of the sensor within a specific crank angle range, a reference phase determining module configured to determine a reference phase that is a phase of a pressure change accompanying a volume change of the combustion chamber, and a failure determining module configured to determine that the sensor has failed, when the failure determining module determines a phase of the read signal of the sensor is delayed by an amount exceeding a predefined threshold from the determined reference phase.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: December 29, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Shoji Fujiwara, Hidetoshi Hashimoto, Takuji Okumura, Shigeru Nakagawa, Yasushi Torii, Masayuki Kinoshita, Yuichiro Tsumura, Daisuke Tanaka, Taiki Maiguma
  • Publication number: 20200359888
    Abstract: Predicting a non perfusion area. An enhancement image processing section performs enhancement image processing on a fundus image of a subject eye to enhance vascular portions (304). A prediction processing section predicts a non perfusion area in the fundus image that has been subjected to the enhancement image processing (306 to 312). A generation section generates a non perfusion area candidate image (314).
    Type: Application
    Filed: December 28, 2017
    Publication date: November 19, 2020
    Applicant: NIKON CORPORATION
    Inventors: Mariko HIROKAWA, Yasushi TANABE, Tomoharu FUJIWARA
  • Patent number: 10815917
    Abstract: A failure diagnosis system for an in-cylinder pressure sensor is provided, which includes an in-cylinder pressure sensor, a fuel injection valve, an engine controller including an engine control module and a diagnosis module. The engine control module controls the fuel injection valve to stop the supply of fuel to the engine, when a fuel cut condition is satisfied while the automobile travels. The diagnosis module includes a limiting module configured to limit an execution of the failure diagnosis of the in-cylinder pressure sensor until the diagnosis module determines that a given period has lapsed after the stop of fuel supply to the engine. The diagnosis module reads a signal of the in-cylinder pressure sensor when the given period has lapsed after the stop of the fuel supply to the engine, and diagnoses the failure of the in-cylinder pressure sensor based on the read signal of the in-cylinder pressure sensor.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: October 27, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Shoji Fujiwara, Hidetoshi Hashimoto, Takuji Okumura, Shigeru Nakagawa, Yasushi Torii, Masayuki Kinoshita, Yuichiro Tsumura, Daisuke Tanaka, Taiki Maiguma
  • Patent number: 10807191
    Abstract: A welding target is irradiated with a laser beam so as to form a beam spot that moves relatively with respect to the welding target along a locus having a spiral shape rotating around a rotation center moving in a welding direction. The welding target is welded using the laser beam irradiated with. While the welding target is irradiated with the laser beam, the welding target is irradiated with the laser beam based on an interval coefficient which is a value indicating an overlapping degree of the locus having the spiral shape in the welding direction.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: October 20, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tatsuyuki Nakagawa, Yasushi Mukai, Atsuhiro Kawamoto, Junji Fujiwara, Noriyuki Matsuoka
  • Patent number: 10767592
    Abstract: A failure diagnosis device for an in-cylinder pressure sensor includes an in-cylinder pressure sensor, and a controller comprised of circuitry configured to execute a diagnosis module into which a signal of the in-cylinder pressure sensor is inputted and configured to diagnose a failure of the sensor based on the signal. The diagnosis module includes a reading module configured to read the signals of the in-cylinder pressure sensor at a first timing that is a timing retarded by a specific crank angle from a compression top dead center, and at a second timing that is a timing advanced by the specific crank angle from the compression top dead center, and a failure determining module configured to determine that the in-cylinder pressure sensor has failed when the failure determining module determines that a difference between signal values at the first timing and at the second timing exceeds a predefined threshold.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: September 8, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Shoji Fujiwara, Hidetoshi Hashimoto, Takuji Okumura, Shigeru Nakagawa, Yasushi Torii, Masayuki Kinoshita, Yuichiro Tsumura, Daisuke Tanaka, Taiki Maiguma
  • Patent number: 10753331
    Abstract: A coiled wave spring used by a diaphragm damper device and arranged in a fuel chamber defined by a housing and a cover is provided. The coiled wave spring is configured to be arranged between a diaphragm damper of the diaphragm damper device and the cover. The coiled wave spring is configured to fix the diaphragm damper to the housing with its elastic force. The coiled wave spring includes a coil portion, a winding initiation portion, and a winding termination portion. The winding initiation portion and the winding termination portion form flat seat windings. The seat windings each have a larger outer diameter than the coil portion. One of the seat windings is configured to be fixed to the diaphragm damper.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: August 25, 2020
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventors: Toshiaki Iwa, Yoshihiro Ogawa, Yasushi Fujiwara, Yusuke Sato
  • Publication number: 20200256778
    Abstract: The molecule detecting apparatus of an embodiment includes a light source 31, a fluorescent layer 42 emitting different fluorescence depending on the kind of a target molecule 60 captured when being irradiated with light from the light source 31, a photodetector 32 configured to detect fluorescence, and the photodetector 32 is an array of avalanche photodiodes operating in Geiger mode.
    Type: Application
    Filed: August 30, 2019
    Publication date: August 13, 2020
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Honam KWON, Ikuo FUJIWARA, Kazuhiro SUZUKI, Keita SASAKI, Yuki NOBUSA, Yasushi SHINJO
  • Publication number: 20200237208
    Abstract: An image signal output device including an acquisition section configured to acquire a fundus image, a selection section configured to select a projection for displaying the acquired fundus image from plural projections, a conversion section configured to convert the fundus image into the selected projection, and a processing section configured to output an image signal of the converted fundus image.
    Type: Application
    Filed: July 30, 2018
    Publication date: July 30, 2020
    Applicant: NIKON CORPORATION
    Inventors: Yasushi TANABE, Tomoharu FUJIWARA, Mariko HIROKAWA
  • Publication number: 20200200112
    Abstract: An abnormality diagnosis device of an in-cylinder pressure sensor is provided. The device carries out a performance determination in which a performance quality of the sensor is determined based on an electric signal inputted from the sensor. The device carries out a first determination in which the performance determination is performed at a given timing, a performance recovery in which a given deposit removal control is executed in which a deposit accumulating inside the combustion chamber is removed when the performance quality of the in-cylinder pressure sensor is determined to fall below a given reference value, and a second determination in which the performance determination is carried out again after the performance recovery. In the second determination, the in-cylinder pressure sensor is diagnosed as abnormal when the performance quality of the sensor is determined to fall below the given reference value.
    Type: Application
    Filed: October 25, 2019
    Publication date: June 25, 2020
    Inventors: Shoji Fujiwara, Hidetoshi Hashimoto, Takuji Okumura, Shigeru Nakagawa, Yasushi Torii, Masayuki Kinoshita, Yuichiro Tsumura, Daisuke Tanaka, Taiki Maiguma
  • Patent number: 10654121
    Abstract: An arc-welding method in welding by repeating a short circuit and an arc. When the sign of opening of the short circuit is detected, the welding current is reduced from a first current value at the detection of the sign to a second current value, which is lower than the first current value. When the opening of the short circuit is detected, a pulse current having a peak value higher than the first current value is supplied at a plurality of times in the arc period. This suppresses porosities and spatters when galvanized steel sheets are welded.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: May 19, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Junji Fujiwara, Yasushi Mukai, Atsuhiro Kawamoto
  • Publication number: 20200072149
    Abstract: A failure diagnosis device for an in-cylinder pressure sensor is provided, which includes an in-cylinder pressure sensor, and an engine controller comprised of circuitry configured to execute a diagnosis module into which a signal of the sensor is inputted, to diagnose a failure of the sensor based on the signal. The diagnosis module includes a reading module configured to read the signal of the sensor within a specific crank angle range, a reference phase determining module configured to determine a reference phase that is a phase of a pressure change accompanying a volume change of the combustion chamber, and a failure determining module configured to determine that the sensor has failed, when the failure determining module determines a phase of the read signal of the sensor is delayed by an amount exceeding a predefined threshold from the determined reference phase.
    Type: Application
    Filed: July 2, 2019
    Publication date: March 5, 2020
    Inventors: Shoji Fujiwara, Hidetoshi Hashimoto, Takuji Okumura, Shigeru Nakagawa, Yasushi Torii, Masayuki Kinoshita, Yuichiro Tsumura, Daisuke Tanaka, Taiki Maiguma
  • Publication number: 20200072150
    Abstract: A failure diagnosis device for an in-cylinder pressure sensor includes an in-cylinder pressure sensor, and a controller comprised of circuitry configured to execute a diagnosis module into which a signal of the in-cylinder pressure sensor is inputted and configured to diagnose a failure of the sensor based on the signal. The diagnosis module includes a reading module configured to read the signals of the in-cylinder pressure sensor at a first timing that is a timing retarded by a specific crank angle from a compression top dead center, and at a second timing that is a timing advanced by the specific crank angle from the compression top dead center, and a failure determining module configured to determine that the in-cylinder pressure sensor has failed when the failure determining module determines that a difference between signal values at the first timing and at the second timing exceeds a predefined threshold.
    Type: Application
    Filed: July 2, 2019
    Publication date: March 5, 2020
    Inventors: Shoji Fujiwara, Hidetoshi Hashimoto, Takuji Okumura, Shigeru Nakagawa, Yasushi Torii, Masayuki Kinoshita, Yuichiro Tsumura, Daisuke Tanaka, Taiki Maiguma
  • Publication number: 20200072148
    Abstract: A failure diagnosis system for an in-cylinder pressure sensor is provided, which includes an in-cylinder pressure sensor, a fuel injection valve, an engine controller including an engine control module and a diagnosis module. The engine control module controls the fuel injection valve to stop the supply of fuel to the engine, when a fuel cut condition is satisfied while the automobile travels. The diagnosis module includes a limiting module configured to limit an execution of the failure diagnosis of the in-cylinder pressure sensor until the diagnosis module determines that a given period has lapsed after the stop of fuel supply to the engine. The diagnosis module reads a signal of the in-cylinder pressure sensor when the given period has lapsed after the stop of the fuel supply to the engine, and diagnoses the failure of the in-cylinder pressure sensor based on the read signal of the in-cylinder pressure sensor.
    Type: Application
    Filed: July 2, 2019
    Publication date: March 5, 2020
    Inventors: Shoji Fujiwara, Hidetoshi Hashimoto, Takuji Okumura, Shigeru Nakagawa, Yasushi Torii, Masayuki Kinoshita, Yuichiro Tsumura, Daisuke Tanaka, Taiki Maiguma
  • Patent number: 10518993
    Abstract: In a paper sheet storing apparatus housed in a paper sheet handling apparatus, a storage part stores paper sheets. An ejection port ejects a paper sheet of the paper sheets stored in the storage part. A first roller is arranged near the ejection port, and is rotated in a predetermined direction by transmission of rotation caused by drive of a drive shaft so as to send out the paper sheet from the ejection port. A driven shaft is rotated in the predetermined direction following the rotation of the first roller. A second roller is arranged in a position farther from the ejection port than a first roller, and is rotated in the predetermined direction by transmission of rotation of the driven shaft so as to sequentially feed, to the first roller, the paper sheets from a paper sheet positioned in a lowest layer among the paper sheets.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: December 31, 2019
    Assignee: FUJITSU FRONTECH LIMITED
    Inventors: Ryo Fujiwara, Hiroshi Yanagida, Yasushi Gotoh, Koichi Hosoyama
  • Publication number: 20190390172
    Abstract: The present invention provides a compound of formula (1) or a salt thereof wherein ring Q1 is optionally-substituted C6-10 aryl, etc.; R1 and R2 are independently hydrogen atom, etc.; W1 is C1-4 alkylene which may be optionally substituted with 1 to 3 fluorine atoms or C3-7 cycloalkyl; W2 is —NR4aC(O)—, etc. wherein R4a is hydrogen atom or C1-6 alkyl; ring Q2 is optionally-substituted C6-10 aryl, etc., which has an inhibitory effect on the sphere-forming ability of cancer cells and is useful an agent for removing iPS cells.
    Type: Application
    Filed: December 19, 2017
    Publication date: December 26, 2019
    Inventors: Yasushi Hiramine, Masayo Fujiwara, Hitoshi Ban, Futoshi Hasegawa
  • Patent number: 10495042
    Abstract: Peripheral sections of two diaphragms are stacked on each other. The peripheral sections of the two diaphragms form an outer rim of a diaphragm damper. The outer rim is continuously sealed and joined by laser welding over the entire circumference of the outer rim. The thickness of the tip of the outer rim is set in correspondence with the spot diameter of a laser beam at the tip of the outer rim. A weld bead is formed by welding in the entire area of the tip of the outer rim.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: December 3, 2019
    Assignee: Eagle Industry Co., LTD.
    Inventors: Toshiaki Iwa, Yoshihiro Ogawa, Yasushi Fujiwara, Yusuke Sato
  • Patent number: 10498913
    Abstract: There is provided an image forming apparatus including a scanner unit configured to be openable on an apparatus front side with respect to a printer unit due to a first hinge portion on an apparatus rear side, a cover to cover a feed port configured to be openable due to a second hinge portion on the apparatus front side of the feed port, wherein a rotation axis of the first hinge portion is positioned on the apparatus rear side of a rotation axis of the second hinge portion in an apparatus depth direction. Interlocking with an operation to open the scanner unit, the cover moves while a portion thereof is in contact with a surface of the paper feed tray or the sheet placed thereon to open the cover in an interlocking manner.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: December 3, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasushi Ishida, Haruo Uchida, Mitsuyuki Fujibayashi, Izumi Fujiwara
  • Patent number: 10495041
    Abstract: A holding member for a diaphragm damper device including a plurality of diaphragm dampers is formed from an elastic member. The holding member includes a band that can be elastically tightened to circumferential walls of two adjacent ones of the diaphragm dampers and hooks arranged on two sides of the band. The hooks elastically hold each of the diaphragm dampers that are stacked.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: December 3, 2019
    Assignee: Eagle Industry Co., LTD.
    Inventors: Toshiaki Iwa, Yoshihiro Ogawa, Yasushi Fujiwara, Yusuke Sato
  • Patent number: 10471540
    Abstract: A laser welding method of the present disclosure includes the step of irradiating a workpiece with a laser beam in a helical shape along a weld part of the workpiece. The helical shape is a combination of a circular trajectory in which a laser beam is moved circularly, and a movement trajectory in which the laser beam is moved in a proceeding direction along the weld part. Furthermore, first energy of the laser beam moving so as to have a component of the proceeding direction in the circular trajectory is larger than second energy of the laser beam moving so as to have a component of an opposite direction to the proceeding direction in the circular trajectory.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: November 12, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Noriyuki Matsuoka, Yasushi Mukai, Atsuhiro Kawamoto, Junji Fujiwara, Tatsuyuki Nakagawa
  • Publication number: 20190305472
    Abstract: A hermetic terminal (110) includes a barrier wall (12) to be joined to a housing (11), a body (15) that is to be connected to a signal ground and is fixed to the barrier wall (12) via a first insulator (13), and a signal line (16) passing through the body (15) and fixed to the body (15) via a second insulator (14). When the barrier wall (12) is joined to the housing (11), a space (28) is formed between an inner wall of the housing (11) and a surface (31) of the body (15) intersecting an end face (29) of the body (15) positioned towards the inside of the housing (11).
    Type: Application
    Filed: March 27, 2019
    Publication date: October 3, 2019
    Applicant: Yokogawa Electric Corporation
    Inventors: Hideki FUJIWARA, Kohei Tomonaga, Yasushi Hyono, Tomoya Taguchi