Patents by Inventor Naoki Ohashi

Naoki Ohashi 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: 20210023649
    Abstract: A friction welding apparatus is provided, which includes a tool, a rotary driver, a linear driver, and a control device. The control device controls the linear driver and the rotary driver so that the tool is rotated while a tip-end part thereof is pressed against a to-be-joined part of a to-be-joined object to increase a temperature of the to-be-joined part at or above an A1 transformation point, the tip-end part of the tool reaches a given first position so that a softened second member sticks into a softened first member, and the tool is drawn out from the to-be-joined part while the tool is rotated.
    Type: Application
    Filed: March 15, 2019
    Publication date: January 28, 2021
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yoshitaka MURAMATSU, Ryoji OHASHI, Naoki TAKEOKA, Takuya FUKUDA
  • Patent number: 10749402
    Abstract: The rotary electric machine includes: a stator that includes: a stator core; and a stator coil; a ring member that accommodates the stator so as to hold the stator core in an internally fitted state; a housing case formed into a floored cylindrical shape with an opening at a first end portion, and that accommodates the ring member and the stator; and a cover mounted onto the first end portion of the housing case so as to cover the opening of the housing case, wherein a first end portion of each of the ring member and the housing case is fixed by fastening to the cover such that a fastening direction of each is oriented in an axial direction, and a second end portion of the ring member is fitted into and held by the housing case by means of an interfitting member.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: August 18, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Naoki Ohashi, Masaya Inoue, Koichi Ojima, Kazuyuki Iwamoto
  • Patent number: 10700261
    Abstract: A piezoelectric material for a combustion pressure sensor, a method for producing the piezoelectric material, and a combustion pressure sensor using the piezoelectric material are provided. The piezoelectric material of the present invention includes a single crystal containing Ca, Ta, an element M (M is Al or Ga), Si, and O, the single crystal has the same crystal structure as the crystal structure of langasite represented by La3Ga5SiO14, and at least the content of the element M is insufficient for the stoichiometric composition represented by Ca3TaM3Si2O14. Preferably, in a case where the element M is Ga, each content of the Ca and the Si is excessive for the stoichiometric composition, and in a case where the element M is Al, the content of the Ca is excessive for the stoichiometric composition, and the content of the Ta is insufficient for the stoichiometric composition.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: June 30, 2020
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Kiyoshi Shimamura, Encarnacion Antonia Garcia Villora, Isao Sakaguchi, Naoki Ohashi
  • Publication number: 20200189297
    Abstract: A conveyance unit of an image printing apparatus includes a conveyance member configured to nip and convey the print medium and disposed upstream of the print head in the conveyance direction but does not include a conveyance member configured to nip and convey the print medium and disposed downstream of the print head in the conveyance direction. In a case where a trailing edge margin length indicated by the trailing edge margin information is shorter than a first length, a control unit of the image printing apparatus controls the print head and the conveyance unit such that at least one scan of the print head for printing the image is performed after a trailing edge of the print medium in the conveyance direction passes by the conveyance member disposed upstream of the print head.
    Type: Application
    Filed: February 25, 2020
    Publication date: June 18, 2020
    Inventors: Naoki Zaizen, Takakazu Ohashi
  • Patent number: 10666111
    Abstract: This invention is concerning a rotary electric machine 1, this electric motor 1 being provided with an inner cylinder 2, a rotor 3 provided so as to be rotatable inside the inner cylinder 2, a stator 4 fixed to the inner cylinder 2 and separated via a gap from an outer periphery of the rotor 3, and an outer cylinder 8 that covers an entire periphery of the inner cylinder 2 and forms a space 15, which serves as a coolant passage, in conjunction with the inner cylinder 2, wherein both ends of the inner cylinder 2 and the outer cylinder 8 in an axial direction are fixed to each other by cylinder welding portions 9 formed by welding. Accordingly, a rotary electric machine that is small and light can be obtained at low cost.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: May 26, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Naoki Ohashi, Shoichiro Nishitani, Keisuke Murase, Akihiro Yamamura
  • Patent number: 10611177
    Abstract: A conveyance unit of an image printing apparatus includes a conveyance member configured to nip and convey the print medium and disposed upstream of the print head in the conveyance direction but does not include a conveyance member configured to nip and convey the print medium and disposed downstream of the print head in the conveyance direction. In a case where a trailing edge margin length indicated by the trailing edge margin information is shorter than a first length, a control unit of the image printing apparatus controls the print head and the conveyance unit such that at least one scan of the print head for printing the image is performed after a trailing edge of the print medium in the conveyance direction passes by the conveyance member disposed upstream of the print head.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: April 7, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoki Zaizen, Takakazu Ohashi
  • Publication number: 20200046482
    Abstract: An intraperitoneal insertion member 10 includes: an inguinal-hernia repair mesh 1 folded or rolled into an elongated shape; and a cover material 2 that covers an external surface of the mesh.
    Type: Application
    Filed: October 16, 2019
    Publication date: February 13, 2020
    Inventor: NAOKI OHASHI
  • Patent number: 10549558
    Abstract: A cutter unit is attached to a carriage in a predetermined direction, the carriage moving in a cutting direction of a sheet. A first set of first fitting sections and a second set of second fitting sections are provided as groups of fitting sections provided at positions, which face each other, on the carriage and the cutter unit. The first fitting sections and the second fitting sections each of which are fitted to each other in a predetermined direction. When the cutter unit is attached to the carriage, the fitting of the first fitting sections starts before the fitting of the second fitting sections.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: February 4, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shuichi Masuda, Naoki Wakayama, Masakazu Nagashima, Daiki Anayama, Tetsuo Kikuchi, Takakazu Ohashi
  • Patent number: 10554092
    Abstract: In the rotary electric machine according to the present invention, a first O-ring 13a is mounted between a pair of position regulating members 12 that are press-fitted onto and held in a vicinity of a second axial end of an outer circumferential surface of a stator core housing portion 10a so as to be spaced apart in an axial direction, and is pressed and held between the stator core housing portion 10a and a cylindrical portion 16, and a second O-ring 13b is mounted into an O-ring housing groove 11 that is recessed into an outer circumferential surface of a frame mounting portion 10b, and is pressed and held between the frame mounting portion 10b and the cylindrical portion 16, such that a coolant channel 22 is formed between the frame 10 and the cylindrical portion 16.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: February 4, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Koichi Ojima, Naoki Ohashi
  • Patent number: 10483821
    Abstract: Provided is a stator for rotating electric machine that enables reduction in imbalance of compression stress on a stator core between a thin portion due to formation of a cooling passage of a frame and a thick portion where there is no cooling passage. This stator for rotating electric machine includes: a stator core 2 formed in a cylindrical shape; and a frame 4 having an inner circumferential side to which the stator core 2 is fitted and fixed with a predetermined interference, and an outer circumferential side on which a passage 6 for cooling fluid for cooling the stator core 2 is formed, wherein the interference at a thin portion A due to formation of the cooling passage 6, of the frame 4 is greater than the interference at a thick portion B where there is no cooling passage 6.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: November 19, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Naoki Ohashi, Masaya Inoue
  • Publication number: 20190232686
    Abstract: A conveyance unit of an image printing apparatus includes a conveyance member configured to nip and convey the print medium and disposed upstream of the print head in the conveyance direction but does not include a conveyance member configured to nip and convey the print medium and disposed downstream of the print head in the conveyance direction. In a case where a trailing edge margin length indicated by the trailing edge margin information is shorter than a first length, a control unit of the image printing apparatus controls the print head and the conveyance unit such that at least one scan of the print head for printing the image is performed after a trailing edge of the print medium in the conveyance direction passes by the conveyance member disposed upstream of the print head.
    Type: Application
    Filed: January 25, 2019
    Publication date: August 1, 2019
    Inventors: Naoki Zaizen, Takakazu Ohashi
  • Patent number: 10301965
    Abstract: A steam turbine in an embodiment includes a casing, a turbine rotor, a rotor blade cascade, a stationary blade cascade, and a spray unit, the rotor blade cascade and the stationary blade cascade being each arranged at a plurality of stages alternately in an axial direction of the turbine rotor. The turbine rotor is housed inside the casing. In the rotor blade cascade, a plurality of rotor blades are arranged in a circumferential direction of the turbine rotor. In the stationary blade cascade, a plurality of stationary blades are arranged in the circumferential direction of the turbine rotor between a diaphragm inner ring and a diaphragm outer ring. The spray unit sprays spray water to a space located upstream from a rotor blade cascade at a final stage among the rotor blade cascades at the plurality of stages inside the casing.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: May 28, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Naoki Shibukawa, Yoshifumi Iwasaki, Junichi Tominaga, Shinichiro Ohashi
  • Patent number: 10287953
    Abstract: An exhaust purifying apparatus is provided, that can be manufactured at low manufacturing costs and is capable exhibiting high exhaust purifying performance. The exhaust purifying apparatus includes an exhaust passage, and an exhaust purifying member disposed in the exhaust passage. The exhaust purifying member is made of stainless steel. The surface of the stainless steel material is not covered with a catalyst coat containing a catalyst component, so that the surface of the stainless steel material is brought into contact with exhaust. The exhaust purifying member is made of precipitation hardening stainless steel and/or austenitic stainless steel.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: May 14, 2019
    Assignee: KUBOTA Corporation
    Inventors: Yuki Ozaki, Naoki Inoue, Tamotsu Ohashi, Kengo Hidaka, Hiroyuki Kawasoe, Masaru Hayashida, Shunji Okano, Michisuke Iga
  • Patent number: 10193405
    Abstract: In the rotary electric machine, bus-bar lead terminals of bus bars, which are held by a connection component, are formed in such a way that the bus-bar lead terminals are protruded from the bus bars to an axis direction of a stator, and a plurality of bus-bar storage grooves are formed by using a plurality of partitions which are concentrically arranged in a diameter direction of the stator via gaps, and in the plurality of partitions, lengths, in the axis direction, of the most outer circumference partition, which is positioned at the most outer circumference side in the diameter direction, and the most inner circumference partition, which is positioned at the most inner circumference side in the diameter direction, are longer than lengths, in the axis direction, of a plurality of middle partitions, which are positioned between the most outer circumference partition and the most inner circumference partition.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: January 29, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Naoki Ohashi, Ryuichi Kitora
  • Publication number: 20180175281
    Abstract: A piezoelectric material for a combustion pressure sensor, a method for producing the piezoelectric material, and a combustion pressure sensor using the piezoelectric material are provided. The piezoelectric material of the present invention includes a single crystal containing Ca, Ta, an element M (M is Al or Ga), Si, and O, the single crystal has the same crystal structure as the crystal structure of langasite represented by La3Ga5SiO14, and at least the content of the element M is insufficient for the stoichiometric composition represented by Ca3TaM3Si2O14. Preferably, in a case where the element M is Ga, each content of the Ca and the Si is excessive for the stoichiometric composition, and in a case where the element M is Al, the content of the Ca is excessive for the stoichiometric composition, and the content of the Ta is insufficient for the stoichiometric composition.
    Type: Application
    Filed: June 1, 2016
    Publication date: June 21, 2018
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Kiyoshi SHIMAMURA, Encarnacion Antonia GARCIA VILLORA, Isao SAKAGUCHI, Naoki OHASHI
  • Publication number: 20180048207
    Abstract: This invention is concerning a rotary electric machine 1, this electric motor 1 being provided with an inner cylinder 2, a rotor 3 provided so as to be rotatable inside the inner cylinder 2, a stator 4 fixed to the inner cylinder 2 and separated via a gap from an outer periphery of the rotor 3, and an outer cylinder 8 that covers an entire periphery of the inner cylinder 2 and forms a space 15, which serves as a coolant passage, in conjunction with the inner cylinder 2, wherein both ends of the inner cylinder 2 and the outer cylinder 8 in an axial direction are fixed to each other by cylinder welding portions 9 formed by welding. Accordingly, a rotary electric machine that is small and light can be obtained at low cost.
    Type: Application
    Filed: April 27, 2015
    Publication date: February 15, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Naoki OHASHI, Shoichiro NISHITANI, Keisuke MURASE, Akihiro YAMAMURA
  • Patent number: 9866087
    Abstract: A cooling structure for cooling a stator core of a rotating electrical machine includes: a stator core (1b) arranged along an outer periphery of a rotor fixed to a rotary shaft (AX) of a rotating electrical machine; a stator frame (2) extending along an outer peripheral surface of the stator core (1b), the stator frame being configured to fix and support the stator core from the outer peripheral surface side thereof; and a motor case (7) having small-diameter end portions on both sides in an axial direction of the rotary shaft (AX), the small-diameter end portions being welded with airtightness onto an outer peripheral surface of the stator frame so that the motor case forms a space, which is the coolant flow path (CC), together with the outer peripheral surface of the stator frame.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: January 9, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventor: Naoki Ohashi
  • Publication number: 20170288493
    Abstract: Provided is a stator for rotating electric machine that enables reduction in imbalance of compression stress on a stator core between a thin portion due to formation of a cooling passage of a frame and a thick portion where there is no cooling passage. This stator for rotating electric machine includes: a stator core 2 formed in a cylindrical shape; and a frame 4 having an inner circumferential side to which the stator core 2 is fitted and fixed with a predetermined interference, and an outer circumferential side on which a passage 6 for cooling fluid for cooling the stator core 2 is formed, wherein the interference at a thin portion A due to formation of the cooling passage 6, of the frame 4 is greater than the interference at a thick portion B where there is no cooling passage 6.
    Type: Application
    Filed: July 21, 2016
    Publication date: October 5, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Naoki OHASHI, Masaya INOUE
  • Publication number: 20170250585
    Abstract: In the rotary electric machine, bus-bar lead terminals of bus bars, which are held by a connection component, are formed in such a way that the bus-bar lead terminals are protruded from the bus bars to an axis direction of a stator, and a plurality of bus-bar storage grooves are formed by using a plurality of partitions which are concentrically arranged in a diameter direction of the stator via gaps, and in the plurality of partitions, lengths, in the axis direction, of the most outer circumference partition, which is positioned at the most outer circumference side in the diameter direction, and the most inner circumference partition, which is positioned at the most inner circumference side in the diameter direction, are longer than lengths, in the axis direction, of a plurality of middle partitions, which are positioned between the most outer circumference partition and the most inner circumference partition.
    Type: Application
    Filed: June 23, 2016
    Publication date: August 31, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Naoki OHASHI, Ryuichi KITORA
  • Patent number: 9496492
    Abstract: A resistance switching device having a high resistance variation ratio, an excellent response characteristic, an excellent resistance memory characteristic (retention characteristics) and an excellent repeat resistance. The resistance switching device comprises an n-type oxide semiconductor and first and second electrodes which are disposed so as to interpose at least a part of the n-type oxide semiconductor therebetween wherein a Schottky junction which provides resistance variation/memory characteristics by the application of voltage having different polarities between the first and second electrodes is formed at an interface between the n-type oxide semiconductor and the first electrode; and the first electrode is positioned such that it is in contact with the n-type oxide semiconductor, and has a lower layer which is formed from Au oxide or a Pt oxide or Au or Pt containing oxygen having the thickness of 1-50 nm.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: November 15, 2016
    Assignees: MURATA MANUFACTURING CO., LTD., NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Sakyo Hirose, Naoki Ohashi, Hideki Yoshikawa