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).

  • Publication number: 20180316239
    Abstract: A motor includes a rotor that includes a shaft centered on a central axis extending in an upward and downward direction; a stator that is disposed to face the rotor in a radial direction; a bearing that supports the shaft; a bearing holder that holds the bearing; and a housing that accommodates the rotor, the stator, and the bearing holder, and opens to an upper side. The housing includes a controller accommodating region that accommodates at least a portion of a controller electrically connected to the stator on an upper side from the bearing holder. An inner diameter of the housing in the controller accommodating region is larger than an inner diameter of the housing at a position to which the bearing holder is attached. The bearing holder is held on an inner peripheral surface of the housing by interference fitting.
    Type: Application
    Filed: October 6, 2016
    Publication date: November 1, 2018
    Inventors: Kosuke OGAWA, Takashi HATTORI, Takashi SEGUCHI, Shunsuke MURAKAMI, Takao ATARASHI, Yoshiaki YAMASHITA
  • Patent number: 10103314
    Abstract: The piezoelectric material of the present invention includes a main component composed of a perovskite-type metal oxide represented by Formula (1), at least one of Mn and Ni, and Mg. The content of 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 Mn is 0 mol or more and 0.005 mol or less based on 1 mol of the perovskite-type metal oxide, provided that the content of Mn and the content of Ni are not simultaneously 0 mol. The content of Mg is 0.001 mol or more and 0.020 mol or less based on 1 mol of the perovskite-type metal oxide. Formula (1): (NaxBa1-y)(NbyTi1-y)O3 (where x is 0.83 or more and 0.95 or less, y is 0.85 or more and 0.95 or less, and x/y is 0.95 or more and 1.05 or less).
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: October 16, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kaoru Miura, Miki Ueda, Takayuki Watanabe, Shunsuke Murakami, Jumpei Hayashi, Makoto Kubota
  • Publication number: 20180287449
    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: Application
    Filed: October 7, 2016
    Publication date: October 4, 2018
    Applicant: Nidec Corporation
    Inventors: Tomoki IGA, Shunsuke MURAKAMI, Hidehiro HAGA
  • Patent number: 10074796
    Abstract: The piezoelectric material of the present invention includes a main component composed of a perovskite-type metal oxide represented by Formula (1), Zn, and Mg. The content of Zn is 0.005 mol or more and 0.050 mol or less based on 1 mol of the perovskite-type metal oxide, and the content of Mg is 0.001 mol or more and 0.020 mol or less based on 1 mol of the perovskite-type metal oxide. Formula (1): (NaxBa1-y)(NbyTi1-y)O3 (where x is 0.83 or more and 0.95 or less, y is 0.85 or more and 0.95 or less, and x/y is 0.95 or more and 1.05 or less).
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: September 11, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Miki Ueda, Kaoru Miura, Takayuki Watanabe, Shunsuke Murakami, Jumpei Hayashi, Makoto Kubota
  • Publication number: 20180248438
    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: Application
    Filed: August 9, 2016
    Publication date: August 30, 2018
    Inventors: Kosuke OGAWA, Takashi HATTORI, Shunsuke MURAKAMI, Takao ATARASHI, Hidehiro HAGA
  • Publication number: 20180241268
    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: Application
    Filed: August 8, 2016
    Publication date: August 23, 2018
    Inventors: Yu ASAHI, Hidehiro HAGA, Shunsuke MURAKAMI
  • Publication number: 20180241272
    Abstract: A motor includes a rotor including a shaft that is disposed along a central axis extending in an up-down direction; a stator radially facing the rotor with a clearance therebetween and including a plurality of coils; and a busbar electrically connected to the coils. The coils each have a coil end that is an end of a conductive wire. The busbar includes a first conductive member and a second conductive member that serve as different members. The first conductive member has a first coil end connector that is electrically connected to the coil ends. The second conductive member has a second coil end connector that is electrically connected to the coil ends. The plurality of coil ends are sandwiched between the first coil end connector and the second coil end connector and provide electrical continuity between the first coil end connector and the second coil end connector.
    Type: Application
    Filed: August 5, 2016
    Publication date: August 23, 2018
    Inventors: Yu Asahi, Shunsuke Murakami, Takao Atarashi, Masayoshi Maeda
  • Publication number: 20180233983
    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: Application
    Filed: August 5, 2016
    Publication date: August 16, 2018
    Inventors: Yu ASAHI, Shunsuke MURAKAMI, Takao ATARASHI, Masayoshi MAEDA
  • Publication number: 20180233985
    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: Application
    Filed: August 5, 2016
    Publication date: August 16, 2018
    Inventors: Hidehiro Haga, Yu Asahi, Takao Atarashi, Shunsuke Murakami, Satomi Takei
  • Publication number: 20180233984
    Abstract: A motor includes a rotor that has a shaft with a central axis extending in a vertical direction as a center, a stator disposed so as to face the rotor in a radial direction, a bearing that supports the shaft, a wire support member disposed above the stator, and a bearing holder disposed above the wire support member to hold the bearing. The stator includes a plurality of teeth, and a plurality of coils provided on the plurality of teeth. The wire support member includes a wire holding portion that holds one portion of coil lead wires among the coil lead wires drawn out from the coil, a 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 the conducting member.
    Type: Application
    Filed: August 9, 2016
    Publication date: August 16, 2018
    Applicant: Nidec Corporation
    Inventors: Kosuke OGAWA, Takashi HATTORI, Shunsuke MURAKAMI, Takao ATARASHI, Hidehiro HAGA, Yoshiaki YAMASHITA, Takahiro KIZU, Toshiya OKAMOTO
  • Publication number: 20180222802
    Abstract: There is provided a lead- and potassium-free piezoelectric material having a high piezoelectric constant and a satisfactory insulation property and a piezoelectric element that includes the piezoelectric material. The piezoelectric material contains a perovskite-type metal oxide having the general formula (1): (NaxBa1-y)(NbyTi1-y)O3 (wherein x satisfies 0.80?x?0.95, and y satisfies 0.85?y?0.95); and at least one rare-earth element selected from La, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, wherein the rare-earth element content is more than 0 mol % and 5 mol % or less of the amount of perovskite-type metal oxide. The piezoelectric element includes the piezoelectric material.
    Type: Application
    Filed: February 21, 2018
    Publication date: August 9, 2018
    Inventors: Jumpei Hayashi, Takayuki Watanabe, Shunsuke Murakami, Miki Ueda
  • Publication number: 20180204999
    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: Application
    Filed: March 16, 2018
    Publication date: July 19, 2018
    Inventors: Miki Ueda, Takayuki Watanabe, Shunsuke Murakami
  • Publication number: 20180178162
    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: Application
    Filed: November 3, 2017
    Publication date: June 28, 2018
    Inventors: Daisuke HONDA, Taiyo HIROI, Jun SUZUKI, Shunsuke MURAKAMI, Saki OKAMOTO
  • Patent number: 9981292
    Abstract: The present invention can provide a lead-free piezoelectric material having a high piezoelectric constant in the room temperature range. The present invention for this purpose is a piezoelectric material including a main component containing a perovskite metal oxide represented by following general formula (1), Baa(Ti1-xZrx)O3??(1) where 0.02?x?0.13 and 0.986?a?1.02, a first auxiliary component containing Mn, and a second auxiliary component containing trivalent Bi, wherein an amount of the contained Mn is 0.0020 moles or more and 0.0150 moles or less relative to 1 mole of the metal oxide, and an amount of the contained Bi is 0.00042 moles or more and 0.00850 moles or less relative to 1 mole of the metal oxide.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: May 29, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takanori Matsuda, Takayuki Watanabe, Shunsuke Murakami, Hiroshi Saito, Tatsuo Furuta
  • Publication number: 20180123019
    Abstract: The piezoelectric material of the present invention includes a main component composed of a perovskite-type metal oxide represented by Formula (1), at least one of Mn and Ni, and Mg. The content of 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 Mn is 0 mol or more and 0.005 mol or less based on 1 mol of the perovskite-type metal oxide, provided that the content of Mn and the content of Ni are not simultaneously 0 mol. The content of Mg is 0.001 mol or more and 0.020 mol or less based on 1 mol of the perovskite-type metal oxide. Formula (1): (NaxBa1-y)(NbyTi1-y)O3 (where x is 0.83 or more and 0.95 or less, y is 0.85 or more and 0.95 or less, and x/y is 0.95 or more and 1.05 or less).
    Type: Application
    Filed: March 24, 2016
    Publication date: May 3, 2018
    Inventors: Kaoru Miura, Miki Ueda, Takayuki Watanabe, Shunsuke Murakami, Jumpei Hayashi, Makoto Kubota
  • Publication number: 20180123018
    Abstract: The piezoelectric material of the present invention includes a main component composed of a perovskite-type metal oxide represented by Formula (1), Zn, and Mg. The content of Zn is 0.005 mol or more and 0.050 mol or less based on 1 mol of the perovskite-type metal oxide, and the content of Mg is 0.001 mol or more and 0.020 mol or less based on 1 mol of the perovskite-type metal oxide. Formula (1): (NaxBa1-y)(NbyTi1-y)O3 (where x is 0.83 or more and 0.95 or less, y is 0.85 or more and 0.95 or less, and x/y is 0.95 or more and 1.05 or less).
    Type: Application
    Filed: March 24, 2016
    Publication date: May 3, 2018
    Inventors: Miki Ueda, Kaoru Miura, Takayuki Watanabe, Shunsuke Murakami, Jumpei Hayashi, Makoto Kubota
  • Patent number: 9960343
    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: September 29, 2016
    Date of Patent: May 1, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Miki Ueda, Takayuki Watanabe, Shunsuke Murakami
  • Patent number: 9954161
    Abstract: A piezoelectric material contains a perovskite-type metal oxide represented by general formula (1) as a main component: (Ba1?x?yCaxSny)?(Ti1?zZrz)O3??General formula (1) (where 0.020?x?0.200, 0.020?y?0.200, 0.050<z?0.085, 0.986???1.100).
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: April 24, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Makoto Kubota, Hidenori Tanaka, Takayuki Watanabe, Shunsuke Murakami
  • Patent number: 9932273
    Abstract: There is provided a lead- and potassium-free piezoelectric material having a high piezoelectric constant and a satisfactory insulation property and a piezoelectric element that includes the piezoelectric material. The piezoelectric material contains a perovskite-type metal oxide having the general formula (1): (NaxBa1-y)(NbyTi1-y)O3 (wherein x satisfies 0.80?x?0.95, and y satisfies 0.85?y?0.95); and at least one rare-earth element selected from La, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, wherein the rare-earth element content is more than 0 mol % and 5 mol % or less of the amount of perovskite-type metal oxide. The piezoelectric element includes the piezoelectric material.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: April 3, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jumpei Hayashi, Takayuki Watanabe, Shunsuke Murakami, Miki Ueda
  • Publication number: 20180082271
    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: Application
    Filed: March 30, 2015
    Publication date: March 22, 2018
    Applicant: Nomura Research Institute, Ltd.
    Inventors: Yuzo Ishida, Hiroo Yoshida, Masaki Soga, Shunsuke Murakami, Masakuni Negishi