Patents by Inventor Yuji Ogawa

Yuji Ogawa 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: 11323284
    Abstract: A car integrated management system has a plurality of communication apparatuses, each including: an extraction unit to extract entries from a table; an address unit to generate a destination address of a packet, using information to identify a subnet connected to each of the communication apparatuses, and to generate a next hop address that indicates an address of a transfer destination to which the packet is to be transferred, using information to identify each of the communication apparatuses, the subnet identification information and the communication apparatus identification information being included in entry extracted by the extraction unit; an acquisition unit to acquire information about an IP port to be used for sending the packet to a communication apparatus at the next hop address; and an entry addition unit to add information about the destination address, the next hop address, and the IP port to a routing table.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: May 3, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yuji Ogawa, Yuji Hamada
  • Patent number: 10985678
    Abstract: A motor control apparatus includes: a motor drive control section that controls driving of a motor using a predetermined phase; a rotation position detecting section that, at every 180 degrees of an electrical angle of the motor, outputs two kinds of detection signals according to the rotation position of the rotor of the motor; a stopped position estimating section that estimates the stopped position at the start of rotation of the rotor using an elapsed time from when rotation the rotor starts until the kind of the detection signal outputted from the rotation position detecting section switches; a rotational speed estimating section that estimates the rotational speed of the rotor using the elapsed time and the stopped position; and an estimated phase calculating section that calculates an estimated phase as the aforementioned predetermined phase using the rotational speed.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: April 20, 2021
    Assignee: SINFONIA TECHNOLOGY CO., LTD.
    Inventors: Kazunari Kanazawa, Takeshi Tomizaki, Nobumasa Usiro, Makoto Maruyama, Yuji Ogawa
  • Patent number: 10962893
    Abstract: An electrophotographic photoreceptor includes a conductive substrate; and a photosensitive layer arranged on the conductive substrate and containing, as a charge generating material, any one material selected from the group consisting of titanyl phthalocyanines, metal-free phthalocyanines, chlorogallium phthalocyanines and hydroxygallium phthalocyanines; and, as an electron transporting material, a naphthalene tetracarboxylic acid diimide compound represented by Formula (1) below, where R1 and R2 each represent a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an alkylene group, an alkoxy group, an alkyl ester group, a phenyl group optionally having a substituent, a naphthyl group optionally having a substituent, or a halogen element; and R1 and R2 are optionally the same or different: The photoreceptor realizes a stable print density even in a low-temperature environment by suppressing a reduction in print density that is caused by potential fluctuation of the photoreceptor in the low-temperat
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: March 30, 2021
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Shinjiro Suzuki, Seizo Kitagawa, Yuji Ogawa
  • Patent number: 10931215
    Abstract: A motor control apparatus 1 includes a fixed phase setting section that sets a fixed phase of a motor according to a detection signal. At the start of rotation of a rotor, the fixed phase setting section sets a first fixed phase that is equal to or greater than ?90 degrees relative to a stable stopping point at a maximum electrical angle and is equal to or less than 90 degrees relative to a stable stopping point at a minimum electrical angle of the rotor as the fixed phase, and sets a second fixed phase that is equal to or greater than ?90 degrees relative to a stable stopping point at a maximum electrical angle and is equal to or less than 90 degrees relative to a stable stopping point at a minimum electrical angle of the rotor.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: February 23, 2021
    Assignee: Sinfonia Technology Co., Ltd.
    Inventors: Kazunari Kanazawa, Takeshi Tomizaki, Nobumasa Usiro, Makoto Maruyama, Yuji Ogawa
  • Patent number: 10863409
    Abstract: A mobile communication device includes: a monitoring unit that monitors conditions of communication media; a control unit that controls switching communication media based on information indicating a communication medium having a good condition in each of a plurality of travel sections; and a switching unit that switches the communication medium to be used, wherein when a mobile object moves from a first section to a second section, the control unit causes the monitoring unit to monitor, in an area including a boundary between the first and second sections, radio wave conditions of a first communication medium having a good radio wave condition in the first section and a second communication medium having a good radio wave condition in the second section, and instructs the switching unit to perform switchover from the first communication medium to the second communication medium, based on results from the monitoring unit.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: December 8, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yuji Ogawa, Yuji Goto
  • Publication number: 20200324137
    Abstract: Provided is an ultraviolet irradiation device capable of increasing the irradiance at an affected site (target cells) even when ultraviolet light having the same intensity is emitted. This ultraviolet irradiation device is provided with: a device body configured to be capable of emitting ultraviolet light from a light emission unit; an ultraviolet-transparent substrate disposed on the light emission unit; and an elastic member which is disposed on the surface of the substrate facing away from the device body and made of an ultraviolet-transparent material.
    Type: Application
    Filed: December 20, 2017
    Publication date: October 15, 2020
    Applicants: PUBLIC UNIVERSITY CORPORATION NAGOYA CITY UNIVERSITY, Ushio Denki Kabushiki Kaisha, ISHIZUKA GLASS CO., LTD.
    Inventors: Akimichi MORITA, Hideyuki MASUDA, Makoto KIMURA, Yuji OGAWA, Miki YOSHIDA
  • Publication number: 20200285253
    Abstract: An unmanned aircraft 1 according to an embodiment of the present invention provides an unmanned aircraft that properly makes a forced landing in case of an abnormality. The unmanned aircraft 1 is configured as a multicopter that flies with lift and thrust generated by rotation of six rotors 13. The unmanned aircraft 1 identifies a forced landing site in a case of having detected an abnormality during flight and controls motors 12 configured to drive the respective rotors 13, to make a landing at the identified forced landing site. The unmanned aircraft 1 is consequently enabled to make an autonomous forced landing at a specific site in case of an abnormality.
    Type: Application
    Filed: October 23, 2017
    Publication date: September 10, 2020
    Applicant: Autonomous Control Systems Laboratory Ltd.
    Inventors: Daisuke IWAKURA, Yuji OGAWA, Nobuyuki TOGASHI
  • Patent number: 10693339
    Abstract: A coil support (28) is configured to include a coil support body part (281) that is made of resin and that has abutment surfaces (281c, 281d) to be in respective direct abutments with radial inner surfaces of adjoining field windings (24) and an insertion hole (281a) that is formed along a radial direction of a rotary shaft (21), a bolt (282) with a hexagonal hole that has a base end part fixed to a rotor yoke (22) and a tip end part projecting outward in a radial direction and that is inserted into the insertion hole (281a) of the coil support body part (281), and a disc spring (283) that is interposed between the rotor yoke (22) and the coil support body part (281) and that presses the coil support body part (281) toward the field windings (24), and to have a spot-faced part (281b) that is formed on a radial outside of the insertion hole (281a) to have a larger diameter than the insertion hole (281a).
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: June 23, 2020
    Assignee: MEIDENSHA CORPORATION
    Inventor: Yuji Ogawa
  • Publication number: 20200144944
    Abstract: A motor control apparatus 1 includes a fixed phase setting section that sets a fixed phase of a motor according to a detection signal. At the start of rotation of a rotor, the fixed phase setting section sets a first fixed phase that is equal to or greater than ?90 degrees relative to a stable stopping point at a maximum electrical angle and is equal to or less than 90 degrees relative to a stable stopping point at a minimum electrical angle of the rotor as the fixed phase, and sets a second fixed phase that is equal to or greater than ?90 degrees relative to a stable stopping point at a maximum electrical angle and is equal to or less than 90 degrees relative to a stable stopping point at a minimum electrical angle of the rotor.
    Type: Application
    Filed: October 30, 2017
    Publication date: May 7, 2020
    Applicant: SINFONIA TECHNOLOGY CO., LTD.
    Inventors: Kazunari KANAZAWA, Takeshi TOMIZAKI, Nobumasa USIRO, Makoto MARUYAMA, Yuji OGAWA
  • Publication number: 20200144943
    Abstract: A motor control apparatus includes: a motor drive control section that controls driving of a motor using a predetermined phase; a rotation position detecting section that, at every 180 degrees of an electrical angle of the motor, outputs two kinds of detection signals according to the rotation position of the rotor of the motor; a stopped position estimating section that estimates the stopped position at the start of rotation of the rotor using an elapsed time from when rotation the rotor starts until the kind of the detection signal outputted from the rotation position detecting section switches; a rotational speed estimating section that estimates the rotational speed of the rotor using the elapsed time and the stopped position; and an estimated phase calculating section that calculates an estimated phase as the aforementioned predetermined phase using the rotational speed.
    Type: Application
    Filed: October 30, 2017
    Publication date: May 7, 2020
    Applicant: SINFONIA TECHNOLOGY CO., LTD.
    Inventors: Kazunari KANAZAWA, Takeshi TOMIZAKI, Nobumasa USIRO, Makoto MARUYAMA, Yuji OGAWA
  • Patent number: 10585364
    Abstract: The invention provides an electrophotographic photoreceptor, which undergoes little abrasion over long term use and is able to develop a stable image, as well as a method of producing the same and an electrophotographic device including the same. The electrophotographic photoreceptor includes a conductive substrate; and a photosensitive layer that contains an inorganic oxide and that is formed on the conductive substrate from a coating liquid. A test slurry containing 20% by mass of the inorganic oxide dispersed in a solvent for forming the coating liquid has a light transmittance of 40% or more in a test case where light having a wavelength of 780 nm irradiates the test slurry.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: March 10, 2020
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Shinjiro Suzuki, Tomoki Hasegawa, Fengqiang Zhu, Yuji Ogawa, Hirotaka Kobayashi
  • Publication number: 20200044508
    Abstract: A coil support (28) is configured to include a coil support body part (281) that is made of resin and that has abutment surfaces (281c, 281d) to be in respective direct abutments with radial inner surfaces of adjoining field windings (24) and an insertion hole (281a) that is formed along a radial direction of a rotary shaft (21), a bolt (282) with a hexagonal hole that has a base end part fixed to a rotor yoke (22) and a tip end part projecting outward in a radial direction and that is inserted into the insertion hole (281a) of the coil support body part (281), and a disc spring (283) that is interposed between the rotor yoke (22) and the coil support body part (281) and that presses the coil support body part (281) toward the field windings (24), and to have a spot-faced part (281b) that is formed on a radial outside of the insertion hole (281a) to have a larger diameter than the insertion hole (281a).
    Type: Application
    Filed: March 6, 2018
    Publication date: February 6, 2020
    Applicant: MEIDENSHA CORPORATION
    Inventor: Yuji OGAWA
  • Publication number: 20200026206
    Abstract: The present invention provides an electrophotographic photoreceptor including a photosensitive layer containing an electron transport material, and having high pressure resistance and suppressed occurrence of a leak phenomenon, a method for producing the same, and an electrophotographic device using the same. The electrophotographic photoreceptor includes an electrically conductive support containing an aluminum alloy; an anodic oxide film formed on a surface of the electrically conductive support; and a photosensitive layer formed on the anodic oxide film. The photosensitive layer contains an electron transport material having an electron mobility of 10?7 cm2/V/sec or more when field intensity is set to 20 V/?m. The surface of the electrically conductive support having the anodic oxide film formed thereon has an admittance value that is 25 ?S or more and 60 ?S or less.
    Type: Application
    Filed: September 30, 2019
    Publication date: January 23, 2020
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Hirotaka KOBAYASHI, Yutaka IKEDA, Yuji OGAWA, Masaru TAKEUCHI
  • Patent number: 10461232
    Abstract: A condensation reaction-type die bonding agent has little liability of poor electrical connection at the electrodes. A condensation reaction-type die bonding agent for bonding an LED device provided on its surface with device electrodes having connection surfaces covered by gold, where the die bonding agent includes (A) a polysilsesquioxane solid in state at room temperature having trisiloxy units (TA) expressed by R1SiO3/2 where, R1 indicates one group selected from the group comprised of C1 to C15 alkyl groups, a phenyl group, and a benzyl group, and having hydroxyl groups, (B) a polysilsesquioxane liquid in state at room temperature having trisiloxy units (TB) expressed by R2SiO3/2 where, R2 indicates one group selected from the group comprised of C1 to C15 alkyl groups, a phenyl group, and a benzyl group, and having —OR2 where, R2 indicates one group selected from the group comprised of C1 to C15 alkyl groups, a phenyl group, and a benzyl group, and (C) a condensation reaction catalyst.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: October 29, 2019
    Assignees: CITIZEN WATCH CO., LTD., CITIZEN ELECTRONICS CO., LTD.
    Inventors: Hiroo Kajiwara, Yuji Ogawa, Kenichiro Sato, Yuta Yaguchi
  • Publication number: 20190271063
    Abstract: The present invention has as its object the provision of steel sheet for hot stamping use which is excellent in part strength after hot stamping and delayed fracture resistance comprised of large C content high strength steel sheet in which effective hydrogen traps are formed in the steel material. The steel sheet of the present invention solves this problem by forming Fe—Mn-based composite oxides in the steel sheet and trapping hydrogen at the interfaces of the composite oxides and matrix steel and in the voids around the composite oxides. Specifically, it provides steel sheet for hot stamping use which is comprised of chemical ingredients which contain, by mass %, C: 0.05 to 0.40%, Si: 0.02% or less, Mn: 0.1 to 3%, S: 0.02% or less, P: 0.03% or less, Al: 0.005% or less, Ti: 0.01% or less, N: 0.01% or less, one or both of Cr and Mo in a total of 0.005 to 1%, and O: 0.003 to 0.03% and which have a balance of Fe and unavoidable impurities and which contains average diameter 0.
    Type: Application
    Filed: May 17, 2019
    Publication date: September 5, 2019
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Kazuhisa KUSUMI, Yuji OGAWA, Masayuki ABE, Hidekuni MURAKAMI, Kengo TAKEDA, Jun MAKI
  • Patent number: 10344360
    Abstract: The present invention has as its object the provision of steel sheet for hot stamping use which is excellent in part strength after hot stamping and delayed fracture resistance comprised of large C content high strength steel sheet in which effective hydrogen traps are formed in the steel material. The steel sheet of the present invention solves this problem by forming Fe—Mn-based composite oxides in the steel sheet and trapping hydrogen at the interfaces of the composite oxides and matrix steel and in the voids around the composite oxides. Specifically, it provides steel sheet for hot stamping use which is comprised of chemical ingredients which contain, by mass %, C: 0.05 to 0.40%, Si: 0.02% or less, Mn: 0.1 to 3%, S: 0.02% or less, P: 0.03% or less, Al: 0.005% or less, Ti: 0.01% or less, N: 0.01% or less, one or both of Cr and Mo in a total of 0.005 to 1%, and O: 0.003 to 0.03% and which have a balance of Fe and unavoidable impurities and which contains average diameter 0.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: July 9, 2019
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Kazuhisa Kusumi, Yuji Ogawa, Masayuki Abe, Hidekuni Murakami, Kengo Takeda, Jun Maki
  • Publication number: 20190150054
    Abstract: A mobile communication device includes: a monitoring unit that monitors conditions of communication media; a control unit that controls switching communication media based on information indicating a communication medium having a good condition in each of a plurality of travel sections; and a switching unit that switches the communication medium to be used, wherein when a mobile object moves from a first section to a second section, the control unit causes the monitoring unit to monitor, in an area including a boundary between the first and second sections, radio wave conditions of a first communication medium having a good radio wave condition in the first section and a second communication medium having a good radio wave condition in the second section, and instructs the switching unit to perform switchover from the first communication medium to the second communication medium, based on results from the monitoring unit.
    Type: Application
    Filed: April 22, 2016
    Publication date: May 16, 2019
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yuji Ogawa, Yuji Goto
  • Patent number: 10259177
    Abstract: A film manufacturing method and manufacturing apparatus for manufacturing a film having excellent dimensional stability to heat at a good product yield and performing a stress relaxation treatment of the film include performing the stress relaxation treatment while conveying the film in a non-contact state using a levitation conveyance device for jetting a heated gas from gas injection holes to the film and conveying the film in a non-contact state. The film manufacturing method and manufacturing apparatus are particularly suitable for stress relaxation treatment of a polyimide film obtained by heat-treating a polyimide film precursor.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: April 16, 2019
    Assignee: UBE INDUSTRIES, LTD.
    Inventors: Kazumi Ito, Masakatsu Kimura, Yuji Ogawa, Taiki Hirohata
  • Publication number: 20180323355
    Abstract: A condensation reaction-type die bonding agent has little liability of poor electrical connection at the electrodes. A condensation reaction-type die bonding agent for bonding an LED device provided on its surface with device electrodes having connection surfaces covered by gold, where the die bonding agent includes (A) a polysilsesquioxane solid in state at room temperature having trisiloxy units (TA) expressed by R1SiO3/2 where, R1 indicates one group selected from the group comprised of C1 to C15 alkyl groups, a phenyl group, and a benzyl group, and having hydroxyl groups, (B) a polysilsesquioxane liquid in state at room temperature having trisiloxy units (TB) expressed by R2SiO3/2 where, R2 indicates one group selected from the group comprised of C1 to C15 alkyl groups, a phenyl group, and a benzyl group, and having —OR2 where, R2 indicates one group selected from the group comprised of C1 to C15 alkyl groups, a phenyl group, and a benzyl group, and (C) a condensation reaction catalyst.
    Type: Application
    Filed: January 13, 2017
    Publication date: November 8, 2018
    Applicants: Citizen Watch Co., Ltd., Citizen Electronics Co., Ltd.
    Inventors: Hiroo Kajiwara, Yuji Ogawa, Kenichiro Sato, Yuta Yaguchi
  • Publication number: 20180307147
    Abstract: An electrophotographic photoreceptor includes a conductive substrate; and a photosensitive layer arranged on the conductive substrate and containing, as a charge generating material, any one material selected from the group consisting of titanyl phthalocyanines, metal-free phthalocyanines, chlorogallium phthalocyanines and hydroxygallium phthalocyanines; and, as an electron transporting material, a naphthalene tetracarboxylic acid diimide compound represented by Formula (1) below, where R1 and R2 each represent a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an alkylene group, an alkoxy group, an alkyl ester group, a phenyl group optionally having a substituent, a naphthyl group optionally having a substituent, or a halogen element; and R1 and R2 are optionally the same or different: The photoreceptor realizes a stable print density even in a low-temperature environment by suppressing a reduction in print density that is caused by potential fluctuation of the photoreceptor in the low-temperat
    Type: Application
    Filed: June 27, 2018
    Publication date: October 25, 2018
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Shinjiro SUZUKI, Seizo KITAGAWA, Yuji OGAWA