Patents by Inventor Shunsuke Murakami

Shunsuke Murakami 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: 10862363
    Abstract: In a motor, a wire support member includes a wire holding portion that holds one portion of coil lead wires among the coil lead wires extending upward from a coil, a first conducting member that electrically connects the other portion of the coil lead wires to each other, and a main body portion that supports the wire holding portion and a first conducting member, a bus bar unit includes a second conducting member connected to the coil lead wire held by the wire holding portion, and a bus bar holder that holds the second conducting member. A bearing holder includes a through-hole which penetrates the bearing holder in an axial direction and through which a coil end of the coil lead wire or the second conducting member passes.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: December 8, 2020
    Assignee: NIDEC CORPORATION
    Inventors: Kosuke Ogawa, Takashi Hattori, Shunsuke Murakami, Takao Atarashi, Hidehiro Haga
  • Patent number: 10811922
    Abstract: A motor includes a stator including a stator core and coils, and neutral point bus bars disposed on a first side of the coils in an axial direction. The plural coils include a first coil group of a first control system, and a second coil group of a second control system. The neutral point bus bars include a first neutral point bus bar to which the coils of the first coil group are electrically connected, and a second neutral point bus bar to which the coils of the second coil group are connected. At least two of the neutral point bus bars are disposed at positions that overlap each other in the radial direction.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: October 20, 2020
    Assignee: Nidec Corporation
    Inventors: Tomoki Iga, Shunsuke Murakami, Hidehiro Haga
  • Publication number: 20200313501
    Abstract: A motor includes a rotor including a rotation axis; a stator including coils; a cylindrical housing including an opening portion; busbars including busbar connecting portions; terminal pins including terminal connecting portions in a first direction orthogonal to an axial direction; a terminal support holding the terminal pins, wherein the housing has an insertion hole that opens towards an axial-direction one end side; the terminal support includes a protruding portion inserted into the insertion hole; one of the protruding portion and the insertion hole includes a fitting portion fitted to the other of the protruding portion and the insertion hole, and a guiding portion positioned on an insertion-end side of the fitting portion; and, in the guiding portion, a side surface on a side of the first direction is inclined in a direction opposite to the first direction with increasing distance from an open end of the insertion hole.
    Type: Application
    Filed: March 25, 2017
    Publication date: October 1, 2020
    Inventors: Yu ASAHI, Hidehiro HAGA, Shunsuke MURAKAMI, Masayoshi MAEDA
  • Publication number: 20200251949
    Abstract: A motor includes a rotor including a shaft extending along a central axis, a stator including a coil and opposing the rotor in a radial direction with a gap, and a busbar positioned at one axial-directional side of the stator. The busbar includes a conducting wire-connecting portion connected to a conducting wire extending from the coil. A notch into which the conducting wire is inserted is provided in the conducting wire connecting portion. An inner circumferential surface of the notch includes a bottom surface opposing an opening side of the notch, a first opposed surface extending from the bottom surface towards the opening, and a second opposed surface extending from the bottom surface towards the opening and opposing the first opposed surface.
    Type: Application
    Filed: September 28, 2018
    Publication date: August 6, 2020
    Inventors: Tatsuya ONISHI, Kosuke OGAWA, Takashi SEGUCHI, Shunsuke MURAKAMI
  • Patent number: 10726402
    Abstract: Provided are a withdrawal management DB server, a deposit management DB server, and an AP sewer. The withdrawal management DB server includes a withdrawal table, a remittance table, a withdrawal/remittance table, and a remittance completion table. The deposit management DB sewer includes a deposit table, a remittance reception table, and a deposit/remittance table. The AP server registers withdrawal data related to an account number on the withdrawing side to the withdrawal table, registers a remittance ID to the remittance table, and registers a withdrawal ID and the remittance ID to the withdrawal/remittance table in remittance processing. The AP server registers deposit data related to an account number of a withdrawing destination to the deposit table, registers the remittance ID to the remittance reception table, and registers a deposit ID and the remittance ID to the deposit/remittance table. The AP server registers the remittance ID to the remittance completion table.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: July 28, 2020
    Assignee: NOMURA RESEARCH INSTITUTE, LTD.
    Inventors: Yuzo Ishida, Hiroo Yoshida, Masaki Soga, Shunsuke Murakami, Masakuni Negishi
  • Publication number: 20200220405
    Abstract: A motor includes a rotor having a shaft disposed along a central axis extending in a vertical direction and a stator opposed to the rotor in a radial direction with a gap therebetween. The stator includes: an annular core back extending in a circumferential direction, a plurality of teeth extending from the core back in the radial direction, a plurality of coils formed of a conductive wire wound around the teeth. A manufacturing method includes, in at least one of the teeth: a step S1 of forming a first coil winding the conductive wire around the teeth, a step S2 of hooking the conductive wire of a winding end of the first coil to form a lead line; and a step S3 of winding the conductive wire which is the same as the first coil and the lead wire over the first coil to form a second coil.
    Type: Application
    Filed: March 10, 2020
    Publication date: July 9, 2020
    Inventors: Yu ASAHI, Hidehiro HAGA, Shunsuke MURAKAMI
  • Publication number: 20200195097
    Abstract: A motor includes a rotor including a shaft centered on a center axis extending vertically, a stator that is radially opposed to the rotor and includes coils, a conductive holder accommodating the rotor and the stator and including a penetration unit penetrating axially, and a coil lead wire support that is at least partially disposed in the penetration unit, includes a coil lead wire insertion hole into which coil lead wires extending from the coils are provided, and is made of an insulating material. The coil lead wire support includes a base and a fitting unit extending downward from the base, at least one of a circumferential length and a radial length of the fitting unit being shorter than the base, and the coil lead wire insertion hole is in the base and the fitting unit, and the coil lead wire is inserted into the coil lead wire insertion hole.
    Type: Application
    Filed: August 9, 2017
    Publication date: June 18, 2020
    Inventors: Mitsuo KODAMA, Shunsuke MURAKAMI, Takao ATARASHI, Yuya SAITO, Shingo FUKUMOTO, Chiharu KOBAYASHI
  • Patent number: 10651701
    Abstract: A motor includes a rotor having a shaft disposed along a central axis extending in a vertical direction; and a stator opposed to the rotor in a radial direction with a gap therebetween. The stator includes: an annular core back extending in a circumferential direction; a plurality of teeth extending from the core back in the radial direction; a plurality of coils formed of a conductive wire wound around the teeth, the coils forming a plurality of connection systems; and an insulator, at least part of which is positioned between the teeth and the coils. The coils include: a first coil wound around the teeth via the insulator; and a second coil wound around the teeth via the first coil and the insulator.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: May 12, 2020
    Assignee: NIDEC CORPORATION
    Inventors: Yu Asahi, Hidehiro Haga, Shunsuke Murakami
  • Patent number: 10593862
    Abstract: The present invention provides a lead-free piezoelectric material having a high piezoelectric constant over a wide operating temperature region. Therefore, the present invention relates to a piezoelectric material including a perovskite-type metal oxide represented by general formula (1) below as a main component, wherein the average valence, of Sn contained in the general formula (1) lies between 2 and 4. (BavCawSnxTiyZrz)O3 (where 0.620?v?0.970,0.010?w?0.200,0.030?x?0.230,0.865?y?0.990,0?z?0.085, and 1.986?v+w+x+y+z?2.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: March 17, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Makoto Kubota, Hisato Yabuta, Shunsuke Murakami, Kaoru Miura, Kanako Oshima
  • Patent number: 10589222
    Abstract: A urea water agitation control device has an agitation control portion and a temperature sensor which detects a temperature of a urea water. The agitation control portion operates an agitation portion in a specified period which includes a part of a period in which the urea water temperature detected by the temperature sensor is kept at a eutectic point and the urea water radiates a latent heat of solidification.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: March 17, 2020
    Assignee: DENSO CORPORATION
    Inventors: Daisuke Honda, Taiyo Hiroi, Jun Suzuki, Shunsuke Murakami, Saki Okamoto
  • Publication number: 20200059129
    Abstract: A motor includes a rotor, a stator, and first bus bars electrically connected to the stator on one axial direction side of the stator. The stator includes a stator core including a core back extending in a circumferential direction, teeth extending radially from the core back, and coils defined by winding a conducting wire, each of which is mounted on the teeth. A first conducting wire and a second conducting wire which are two respective ends of the conducting wire extend to one axial direction side from each of the coils. The first bus bars are neutral point bus bars connecting two or more first conducting wires as neutral points. The second conducting wire is connected to a power supply that supplies power to the stator.
    Type: Application
    Filed: March 30, 2018
    Publication date: February 20, 2020
    Inventors: Yoshiaki YAMASHITA, Shunsuke MURAKAMI, Kosuke OGAWA
  • Patent number: 10516093
    Abstract: The present invention provides a piezoelectric material not containing lead and potassium, showing satisfactory insulation and piezoelectricity, and having a high Curie temperature. The invention relates to a piezoelectric material includes a main component containing a perovskite-type metal oxide represented by Formula (1): (NaxBa1-y)(NbyTi1-y)O3 (wherein, 0.80?x?0.94 and 0.83?y?0.94), and an additive component containing at least one element selected from Mn and Ni, wherein the content of the Ni is 0 mol or more and 0.05 mol or less based on 1 mol of the perovskite-type metal oxide, and the content of the Mn is 0 mol or more and 0.005 mol or less based on 1 mol of the perovskite-type metal oxide.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: December 24, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Miki Ueda, Takayuki Watanabe, Shunsuke Murakami
  • Publication number: 20190379195
    Abstract: A bus bar unit includes a bus bar holder and bus bars. The bus bar holder is provided on an upper side of a stator disposed in a ring around a central axis extending in a vertical direction. The bus bars are supported by the bus bar holder and connected to coil wires extending from the stator. The bus bars are plate-shaped conductors and are supported by the bus bar holder with a plate surface facing in the vertical direction. The bus bars include coil connecting portions connected to the coil wires, and a bus bar body portion connecting the coil connecting portions through a radially inner side of the plurality of the coil connecting portions, respectively, and at least one bus bar crosses over an upper side or a lower side of at least one of the other bus bars.
    Type: Application
    Filed: January 30, 2018
    Publication date: December 12, 2019
    Inventors: Kosuke OGAWA, Takashi SEGUCHI, Shunsuke MURAKAMI, Takao ATARASHI
  • Patent number: 10498185
    Abstract: A stator includes an annular core back extending circumferentially around a central axis extending vertically; a plurality of teeth extending radially from the core back; a plurality of insulators covering at least part of the teeth; and a coil formed of a conducive wire wound around the teeth via the insulators. The insulator has a cylinder extending radially, an umbrella disposed radially at an end of the cylinder and extending circumferentially in both sides, and a wall protruding from the outer side surface of the cylinder circumferentially to one side. At least part of a tip surface of the wall is inclined and approaches closer to the cylinder as it moves toward the umbrella in the radial direction. The insulator has at least one protrusion protruding to the core back side from the end of the umbrella in one side of the circumferential direction.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: December 3, 2019
    Assignee: NIDEC CORPORATION
    Inventors: Yu Asahi, Shunsuke Murakami, Takao Atarashi, Masayoshi Maeda
  • Publication number: 20190356186
    Abstract: A rotor includes a first rotating body and a second rotating body. The first rotating body includes a first rotor core, first magnets arranged in a circumferential direction, and first outer side surfaces arranged in the circumferential direction. Each of the first outer side surfaces is an outer side surface of the first magnet or an outer side surface of the first rotor core, and includes a first circular arc surface curved in a circular arc shape with a first curvature radius and arranged on one side in the circumferential direction and a second circular arc surface curved in a circular arc shape with a second curvature radius and arranged on the other side in the circumferential direction.
    Type: Application
    Filed: December 22, 2017
    Publication date: November 21, 2019
    Inventors: Akira ICHIEN, Shunsuke MURAKAMI
  • Publication number: 20190341749
    Abstract: A motor includes a stator including, a rotor to rotate about a central axis extending in a vertical direction, and a first bus bar, a second bus bar, and a third bus bar to which lead wires of the coils are respectively connected. The first bus bar includes a first connecting portion to which two lead wires are connected, the second bus bar includes a second connecting portion to which two lead wires are connected, the third bus bar includes a third connecting portion to which one lead wire is connected and a fourth connecting portion to which one lead wire is connected. The first and second connecting portions are arranged side by side in a circumferential direction, and the third and fourth connecting portions are arranged in the circumferential direction with the first and second connecting portions interposed therebetween.
    Type: Application
    Filed: January 16, 2018
    Publication date: November 7, 2019
    Inventors: Kosuke OGAWA, Takashi SEGUCHI, Shunsuke MURAKAMI, Takao ATARASHI
  • Patent number: 10461241
    Abstract: This invention is a method for manufacturing a rectangular parallelepiped-shaped single crystal containing sodium niobate of a perovskite structure as the main component, and the method includes a process of heating a mixture 1 of bismuth sodium niobate which is formed from particles containing a plurality of crystals represented by General Formula (1): Bi2.5Nam?1.5NbmO3m+3 (m is an integer of 2 or more) and in which an average value ma of the m values is larger than 6 and sodium containing alkali metal halide at 1200° C. or more and 1250° C. or less to obtain a rectangular parallelepiped-shaped single crystal containing sodium niobate as the main component.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: October 29, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Watanabe, Shunsuke Murakami, Makoto Kubota
  • Patent number: 10374480
    Abstract: A motor includes a shaft disposed along a central axis extending in an up-down direction, a rotor assembly mounted on the shaft, a stator radially facing the rotor assembly with a clearance therebetween, and a plurality of busbars electrically connected to the stator. The busbar includes a first busbar and a second busbar. The first busbar has an upper disposed portion that is disposed above the second busbar. The second busbar has a busbar cavity that is recessed downward at a position that overlaps with the upper disposed portion in an axial direction.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: August 6, 2019
    Assignee: NIDEC CORPORATION
    Inventors: Hidehiro Haga, Yu Asahi, Takao Atarashi, Shunsuke Murakami, Satomi Takei
  • Patent number: 10308557
    Abstract: There are provided a lead- and potassium-free piezoelectric material that has a high Curie temperature and a high mechanical quality factor and is stable in long-term driving and a piezoelectric element including the lead- and potassium-free piezoelectric material. A piezoelectric material containing a perovskite-type metal oxide having the general formula (1): NaxBa1-yNbyZr1-yO3 wherein x satisfies 0.85?x?0.96 and y satisfies 0.90?y?0.96 and a piezoelectric element including the piezoelectric material. The piezoelectric material may include the perovskite-type metal oxide and Cu, and the Cu content corresponds to 2.00 mol % or less of the amount of the perovskite-type metal oxide.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: June 4, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shunsuke Murakami, Takayuki Watanabe, Miki Ueda
  • Patent number: 10256393
    Abstract: There is provided a lead-free piezoelectric material having a satisfactory piezoelectric constant and mechanical quality factor in the range of device operating temperatures (from ?30° C. to 50° C.). The piezoelectric material contains a main constituent containing a perovskite-type metal oxide expressed by the general formula (Ba1-xCax)a(Ti1-yZry)O3, where x, y and a satisfy the 0.030?x<0.090, 0.030?y?0.080, and 0.9860?a?1.0200. The material also contains 0.040 to 0.500 part by weight of Mn, 0.042 to 0.850 part by weight of Bi, 0 to 0.028 part by weight of Li, 0.001 to 4.000 part by weight of a third sub-constituent including at least one of Si and B, and 0.001 to 4.000 parts by weight of Cu, each in terms of element relative to 100 parts by weight of the metal oxide.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: April 9, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Saito, Shunsuke Murakami, Jumpei Hayashi, Kanako Oshima, Hidenori Tanaka