Patents by Inventor Hiroaki Nagata

Hiroaki Nagata 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: 20200293243
    Abstract: An image forming apparatus includes an engine controller configured to control an operation of the image forming apparatus; an image processing controller including a constant log storage configured to temporarily store a log of the engine controller; a network controller configured to store the log, which is stored in the constant log storage, in another device via a network or in a storage of the image forming apparatus, according to a command from the engine controller; a communication line configured to communicably couple the engine controller to the image processing controller, and to communicably couple the image processing controller to the network controller; and an exclusive-use communication line configured to communicably couple the engine controller to the network controller, and to be used to report the command from the engine controller to the network controller.
    Type: Application
    Filed: March 10, 2020
    Publication date: September 17, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Satoru TAO, Satoru KOMATSUBARA, Satoru OHNO, Hiroaki NAGATA
  • Publication number: 20200236225
    Abstract: A diagnostic apparatus includes a recording device, an acquisition device, and processing circuitry. The acquisition device acquires first and second diagnostic target data obtained in a manner that an image forming device forms a test pattern on each of a first medium and a second smaller medium with the first medium having a long side in agreement with that of the second medium in a conveying direction and an image reading device reads the first medium and reads the second medium rotated such that the long side of the second medium is different in direction from that of the first medium. The circuitry detects an abnormal area and diagnoses an abnormality factor, with the pattern, the first and second data, and third diagnostic target data obtained by rotating the second data such that the long side of the second medium is identical in direction to that of the first medium.
    Type: Application
    Filed: January 17, 2020
    Publication date: July 23, 2020
    Inventors: Toshiyuki HONGO, Takashi ENAMI, Satoru KOMATSUBARA, Ryu HASEGAWA, Hiroaki NAGATA
  • Patent number: 10714282
    Abstract: A switch has a base, an operation unit disposed above the base and moving in a contacting-separating direction with respect to the base in response to an external force, a pair of link members configured to guide movement of the operation unit in the contacting-separating direction, and a coupling portion configured to turnably couple the pair of link members to each other. Each of the pair of link members each includes a coupling-portion-side supported portion supported on one of the base and the operation unit and an end-side supported portion supported on the other of the base and the operation unit. One of the base and the operation unit on which the coupling-portion-side supported portion is supported includes a wall surface provided with a movement space.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: July 14, 2020
    Assignee: Omron Corporation
    Inventors: Kazuhira Izawa, Hiroaki Fujino, Mamiko Naka, Kenshi Nagata
  • Publication number: 20200203069
    Abstract: A sintered magnet body (RaT1bMcBd) coated with a powder mixture of an intermetallic compound (R1iM1j, R1xT2yM1z, R1iM1jHk), alloy (M1dM2e) or metal (M1) powder and a rare earth (R2) oxide is diffusion treated. The R2 oxide is partially reduced during the diffusion treatment, so a significant amount of R2 can be introduced near interfaces of primary phase grains within the magnet through the passages in the form of grain boundaries. The coercive force is increased while minimizing a decline of remanence.
    Type: Application
    Filed: February 26, 2020
    Publication date: June 25, 2020
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiroaki Nagata, Tadao Nomura, Takehisa Minowa
  • Publication number: 20200194171
    Abstract: A sintered magnet body (RaT1bMcBd) coated with a powder mixture of an intermetallic compound (R1iM1j, R1xT2yM1z, R1iM1jHk), alloy (M1dM2e) or metal (M1) powder and a rare earth (R2) oxide is diffusion treated. The R2 oxide is partially reduced during the diffusion treatment, so a significant amount of R2 can be introduced near interfaces of primary phase grains within the magnet through the passages in the form of grain boundaries. The coercive force is increased while minimizing a decline of remanence.
    Type: Application
    Filed: February 26, 2020
    Publication date: June 18, 2020
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiroaki Nagata, Tadao Nomura, Takehisa Minowa
  • Publication number: 20200194170
    Abstract: A sintered magnet body (RaT1bMcBd) coated with a powder mixture of an intermetallic compound (R1iM1j, R1xT2yM1z, R1iM1jHk), alloy (M1dM2e) or metal (M1) powder and a rare earth (R2) oxide is diffusion treated. The R2 oxide is partially reduced during the diffusion treatment, so a significant amount of R2 can be introduced near interfaces of primary phase grains within the magnet through the passages in the form of grain boundaries. The coercive force is increased while minimizing a decline of remanence.
    Type: Application
    Filed: February 26, 2020
    Publication date: June 18, 2020
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiroaki Nagata, Tadao Nomura, Takehisa Minowa
  • Patent number: 10668712
    Abstract: A printing device includes: a platen roller, a pair of bearings, and a holder. The platen roller has a rotational shaft extending in a first direction. The bearings rotatably support respective end portions of the rotational shaft. Each of the bearings includes an abutment portion. The holder includes a pair of fitting portions into which the bearings is respectively fitted. Each of the fitting portions includes: a receiving portion, an opening portion, and an engagement portion extending from the receiving portion. The receiving portion has an inner space configured to receive the corresponding bearing. The abutment portion is configured to abut against the engagement portion. In a case where an external force in a direction toward the opening portion is applied to the bearing, the engagement portion is configured to be deformed so as to reduce an area of the opening portion, thereby immovably engaging the bearing.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: June 2, 2020
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Hiroaki Kita, Yusuke Ikemoto, Hikaru Nagata, Yuichiro Suzuki
  • Patent number: 10661554
    Abstract: A printing device includes: a platen roller having a rotational shaft, a pair of bearings, and a holder. The bearings rotatably support end portions of the rotational shaft. Each of the bearings includes: a support portion, and an engaging portion. The support portion has an outer circumferential surface. The engaging portion is provided at the outer circumferential surface of the support portion. The holder includes a pair of fitting portions. The bearings are fitted into the fitting portions, respectively. Each of the fitting portions includes: a receiving portion configured to receive the support portion, an opening portion, and an engagement portion. The engaging portion is engaged with the engagement portion, whereby an expanding deformation of the opening portion can be restrained in a case where an external force directed in a direction toward the opening portion in the first direction is applied to the bearings.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: May 26, 2020
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Hikaru Nagata, Hiroaki Kita, Yuichiro Suzuki
  • Patent number: 10614952
    Abstract: A sintered magnet body (RaT1bMcBd) coated with a powder mixture of an intermetallic compound (R1iM1j, R1xT2yM1z, R1iM1jHk), alloy (M1dM2e) or metal (M1) powder and a rare earth (R2) oxide is diffusion treated. The R2 oxide is partially reduced during the diffusion treatment, so a significant amount of R2 can be introduced near interfaces of primary phase grains within the magnet through the passages in the form of grain boundaries. The coercive force is increased while minimizing a decline of remanence.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: April 7, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiroaki Nagata, Tadao Nomura, Takehisa Minowa
  • Publication number: 20200102031
    Abstract: A vehicle includes a fragile portion provided in an exhaust passage at a position frontward of a dashboard panel in a vehicle front-rear direction, and a thrusting portion. The fragile portion fractures more easily under a force from a front side of the vehicle than other portions of the exhaust passage. The thrusting portion is provided in one of the exhaust passage, at a position frontward of the dashboard panel and rearward of the fragile portion in the vehicle front-rear direction, and a framework member that is part of a frame structure of the vehicle and supports the dashboard panel. The thrusting portion protrudes from the one of the exhaust passage and the framework member toward the other one and facing the other one in the vehicle front-rear direction.
    Type: Application
    Filed: August 12, 2019
    Publication date: April 2, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryosuke NAGATA, Hiroaki KOSAKA
  • Patent number: 10589387
    Abstract: An Au—Sn—Ag-based solder alloy for high temperature use containing Sn, Ag, Au and elements that are inevitably contained owing to manufacture procedure, wherein the Au—Sn—Ag-based solder alloy has a composition adjusted so that a solidus temperature is within a range of 280 to 400° C. with a gap between the solidus temperature and the liquidus temperature being within 40° C. The Au—Ag—Sn-based solder alloy has low cost, and is excellent in solderability, reflow wettability and reliability. The excellent reflow wettability of the Au—Ag—Sn-based solder alloy allows it to be useful in reflow bonding of crystal quartz devices, SAW filters and MEMS.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: March 17, 2020
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Hiroaki Nagata, Eiji Murase, Toshikazu Shimizu
  • Patent number: 10515747
    Abstract: The invention provides an R—Fe—B sintered magnet consisting essentially of 12-17 at % of Nd, Pr and R, 0.1-3 at % of M1, 0.05-0.5 at % of M2, 4.8+2*m to 5.9+2*m at % of B, and the balance of Fe, containing R2(Fe,(Co))14B intermetallic compound as a main phase, and having a core/shell structure that the main phase is covered with a grain boundary phases. The sintered magnet has an average grain size of less than 6 ?m, a crystal orientation of more than 98%, and a degree of magnetization of more than 96%, and exhibits a coercivity of at least 10 kOe despite a low or nil content of Dy, Tb, and Ho.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: December 24, 2019
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Koichi Hirota, Hiroaki Nagata, Tetsuya Kume, Hajime Nakamura
  • Patent number: 10410775
    Abstract: The invention provides an R—Fe—B sintered magnet consisting essentially of 12-17 at % of Nd, Pr and R, 0.1-3 at % of M1, 0.05-0.5 at % of M2, 4.8+2*m to 5.9+2*m at % of B, and the balance of Fe, containing R2(Fe,(Co))14B intermetallic compound as a main phase, and having a core/shell structure that the main phase is covered with grain boundary phases. The sintered magnet exhibits a coercivity of at least 10 kOe despite a low or nil content of Dy, Tb and Ho.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: September 10, 2019
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Koichi Hirota, Hiroaki Nagata, Tetsuya Kume, Masayuki Kamata, Hajime Nakamura
  • Publication number: 20190214200
    Abstract: A key switch device includes a base, a button mounted on the base so as to be contactable and separable, an elastic body disposed between the base and the button and configured to urge the button in a direction away from the base, and a linear reinforcement member provided on the button and configured to prevent the button from being inclined when the button is operated in a direction toward the base. An outer surface portion of the button includes a recessed support portion in which a part of the linear reinforcement members is disposed.
    Type: Application
    Filed: April 13, 2017
    Publication date: July 11, 2019
    Applicant: OMRON Corporation
    Inventors: Kazuhira Izawa, Mamiko Naka, Kenshi Nagata, Hiroaki Fujino
  • Patent number: 10160037
    Abstract: A rare earth magnet is prepared by disposing a R1-T-B sintered body comprising a R12T14B compound as a major phase in contact with an R2-M alloy powder and effecting heat treatment for causing R2 element to diffuse into the sintered body. The alloy powder is obtained by quenching a melt containing R2 and M. R1 and R2 are rare earth elements, T is Fe and/or Co, M is selected from B, C, P, Al, Si, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, Zr, Nb, Mo, Ag, In, Sn, Sb, Hf, Ta, W, Pt, Au, Pb, and Bi.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: December 25, 2018
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Tadao Nomura, Hiroaki Nagata, Takehisa Minowa
  • Publication number: 20180326543
    Abstract: An Au—Sn—Ag-based solder alloy for high temperature use containing Sn, Ag, Au and elements that are inevitably contained owing to manufacture procedure, wherein the Au—Sn—Ag-based solder alloy has a composition adjusted so that a solidus temperature is within a range of 280 to 400° C. with a gap between the solidus temperature and the liquidus temperature being within 40° C. The Au—Ag—Sn-based solder alloy has low cost, and is excellent in solderability, reflow wettability and reliability. The excellent reflow wettability of the Au—Ag—Sn-based solder alloy allows it to be useful in reflow bonding of crystal quartz devices, SAW filters and MEMS.
    Type: Application
    Filed: August 27, 2015
    Publication date: November 15, 2018
    Applicant: SUMITOMO METAL MINING CO., LTD.
    Inventors: Hiroaki NAGATA, Eiji MURASE, Toshikazu SHIMIZU
  • Patent number: 10074477
    Abstract: A rare earth sintered magnet is an anisotropic sintered body comprising Nd2Fe14 B crystal phase as primary phase and having the composition R1aTbMcSidBe wherein R1 is a rare earth element inclusive of Sc and Y, T is Fe and/or Co, M is Al, Cu, Zn, In, P, S, Ti, V, Cr, Mn, Ni, Ga, Ge, Zr, Nb, Mo, Pd, Ag, Cd, Sn, Sb, Hf, Ta, or W, “a” to “e” are 12?a?17, 0?c?10, 0.3?d?7, 5?e?10, and the balance of b, wherein Dy and/or Tb is diffused into the sintered body from its surface.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: September 11, 2018
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiroaki Nagata, Yuuji Gouki, Kazuaki Sakaki, Tadao Nomura, Koichi Hirota, Hajime Nakamura
  • Patent number: 9892831
    Abstract: The invention provides an R—Fe—B sintered magnet consisting essentially of 12-17 at % of R, 0.1-3 at % of M1, 0.05-0.5 at % of M2, 4.8+2*m to 5.9+2*m at % of B, and the balance of Fe, containing R2(Fe,(Co))14B intermetallic compound as a main phase, and having a core/shell structure that the main phase is covered with a HR-rich layer and a (R,HR)—Fe(Co)-M1 phase wherein HR is Tb, Dy or Ho. The sintered magnet exhibits a coercivity ?10 kOe despite a low content of Dy, Tb, and Ho.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: February 13, 2018
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Koichi Hirota, Hiroaki Nagata, Tetsuya Kume, Hajime Nakamura
  • Publication number: 20170186534
    Abstract: A sintered magnet body (RaT1bMcBd) coated with a powder mixture of an intermetallic compound (R1iM1j, R1xT2yM1z, R1iM1jHk), alloy (M1dM2e) or metal (M1) powder and a rare earth (R2) oxide is diffusion treated. The R2 oxide is partially reduced during the diffusion treatment, so a significant amount of R2 can be introduced near interfaces of primary phase grains within the magnet through the passages in the form of grain boundaries. The coercive force is increased while minimizing a decline of remanence.
    Type: Application
    Filed: March 9, 2017
    Publication date: June 29, 2017
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiroaki Nagata, Tadao Nomura, Takehisa Minowa
  • Publication number: 20170098503
    Abstract: A rare earth sintered magnet is an anisotropic sintered body comprising Nd2Fe14 B crystal phase as primary phase and having the composition R1aTbMcSidBe wherein R1 is a rare earth element inclusive of Sc and Y, T is Fe and/or Co, M is Al, Cu, Zn, In, P, S, Ti, V, Cr, Mn, Ni, Ga, Ge, Zr, Nb, Mo, Pd, Ag, Cd, Sn, Sb, Hf, Ta, or W, “a” to “e” are 12?a?17, 0?c?10, 0.3?d?7, 5?e?10, and the balance of b, wherein Dy and/or Tb is diffused into the sintered body from its surface.
    Type: Application
    Filed: December 12, 2016
    Publication date: April 6, 2017
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiroaki Nagata, Yuuji Gouki, Kazuaki Sakaki, Tadao Nomura, Koichi Hirota, Hajime Nakamura