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: 20210305874
    Abstract: Embodiments of the present application provide a stator, comprising a coil group is provided with a first end part, a second end part, multiple coils respectively wound on a multiple teeth, and a transition line part configured to connect multiple coils, the first end part is provided with a first overlapping part having the same position as at least a part of the second end part in the circumferential direction, the second end part is provided with a second overlapping part having the same position as the first overlapping part in the circumferential direction, and a coil connecting part is connected with the first overlapping part and the second overlapping part.
    Type: Application
    Filed: March 25, 2021
    Publication date: September 30, 2021
    Applicant: NIDEC CORPORATION
    Inventors: Yusaku YOSHIDA, Shunsuke MURAKAMI, Yu WANG, Ting HUANG
  • Publication number: 20210286317
    Abstract: A process cartridge includes a frame having a slit and a recess formed therein at a side of the process cartridge. A photosensitive drum is supported by the frame, with the photosensitive drum being rotatable about an axis thereof, the photosensitive drum including a first end and a second end opposite to the first end. A developing roller is also supported by the frame, the developing roller being rotatable about an axis thereof. A coupling is operatively connected to the photosensitive drum, with the coupling being rotatable about an axis thereof. A helical gear is positioned at the side of the process cartridge, with the helical gear being rotatable about an axis thereof. The helical gear has a plurality of teeth, with at least some of the teeth being exposed teeth that are uncovered by the frame and exposed to outside of the process cartridge.
    Type: Application
    Filed: May 27, 2021
    Publication date: September 16, 2021
    Inventors: Ryuta Murakami, Tadashi Horikawa, Shunsuke Uratani, Yuichiro Inaba
  • Publication number: 20210286316
    Abstract: A process cartridge includes a frame having a slit and a recess formed therein at a side of the process cartridge. A photosensitive drum is supported by the frame, with the photosensitive drum being rotatable about an axis thereof, the photosensitive drum including a first end and a second end opposite to the first end. A developing roller is also supported by the frame, the developing roller being rotatable about an axis thereof. A coupling is operatively connected to the photosensitive drum, with the coupling being rotatable about an axis thereof. A helical gear is positioned at the side of the process cartridge, with the helical gear being rotatable about an axis thereof. The helical gear has a plurality of teeth, with at least some of the teeth being exposed teeth that are uncovered by the frame and exposed to outside of the process cartridge.
    Type: Application
    Filed: May 27, 2021
    Publication date: September 16, 2021
    Inventors: Ryuta Murakami, Tadashi Horikawa, Shunsuke Uratani, Yuichiro Inaba
  • Publication number: 20210277504
    Abstract: A metal member according to this invention is composed of polycrystals of a metal made of ruthenium or an alloy containing ruthenium at a maximum ratio. The aspect ratio of a crystal grain of the polycrystalline metal member is 1.5 or more. A plurality of crystal grains forming the metal member are arranged with their major axes being pointed in the same direction, and the number of crystal grains in a section in the major axis direction of the crystal grains is 120 or less per 1 mm2.
    Type: Application
    Filed: June 27, 2018
    Publication date: September 9, 2021
    Inventors: Akira YOSHIKAWA, Rikito MURAKAMI, Yui YOKOTA, Takayuki NIHEI, Kei KAMADA, Yasuhiro SHOJI, Shunsuke KUROSAWA, Akihiro YAMAJI, Yuji OHASHI
  • Patent number: 11088588
    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: Grant
    Filed: October 6, 2016
    Date of Patent: August 10, 2021
    Assignee: NIDEC CORPORATION
    Inventors: Kosuke Ogawa, Takashi Hattori, Takashi Seguchi, Shunsuke Murakami, Takao Atarashi, Yoshiaki Yamashita
  • Patent number: 11081870
    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: Grant
    Filed: January 30, 2018
    Date of Patent: August 3, 2021
    Assignee: NIDEC CORPORATION
    Inventors: Kosuke Ogawa, Takashi Seguchi, Shunsuke Murakami, Takao Atarashi
  • Patent number: 11031839
    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: Grant
    Filed: March 25, 2017
    Date of Patent: June 8, 2021
    Assignee: NIDEC CORPORATION
    Inventors: Yu Asahi, Hidehiro Haga, Shunsuke Murakami, Masayoshi Maeda
  • Publication number: 20210050759
    Abstract: A busbar apparatus includes a busbar to be connected to an external device, and a holder to hold the busbar and made of an insulating material. The busbar includes a terminal portion to be connected to the external device, an intermediate portion continuous with the terminal portion, and a connection portion continuous with the intermediate portion. The intermediate portion includes an edge portion including portions extending along a first axis. The terminal portion extends from the edge portion. The connection portion extends from the edge portion away from the terminal portion. The terminal portion has a thickness direction extending along a second axis not parallel to the first axis. The connection portion has a thickness direction not parallel to the second axis.
    Type: Application
    Filed: February 18, 2020
    Publication date: February 18, 2021
    Inventors: Shunsuke MURAKAMI, Tatsuya ONISHI
  • Patent number: 10910924
    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: Grant
    Filed: August 9, 2017
    Date of Patent: February 2, 2021
    Assignee: NIDEC CORPORATION
    Inventors: Mitsuo Kodama, Shunsuke Murakami, Takao Atarashi, Yuya Saito, Shingo Fukumoto, Chiharu Kobayashi
  • Publication number: 20210028665
    Abstract: A motor includes a wire support member that 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, and 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: October 15, 2020
    Publication date: January 28, 2021
    Inventors: Kosuke OGAWA, Takashi HATTORI, Shunsuke MURAKAMI, Takao ATARASHI, Hidehiro HAGA
  • Patent number: 10903711
    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: Grant
    Filed: August 9, 2016
    Date of Patent: January 26, 2021
    Assignee: Nidec Corporation
    Inventors: Kosuke Ogawa, Takashi Hattori, Shunsuke Murakami, Takao Atarashi, Hidehiro Haga, Yoshiaki Yamashita, Takahiro Kizu, Toshiya Okamoto
  • Patent number: 10868410
    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: Grant
    Filed: January 16, 2018
    Date of Patent: December 15, 2020
    Assignee: NIDEC CORPORATION
    Inventors: Kosuke Ogawa, Takashi Seguchi, Shunsuke Murakami, Takao Atarashi
  • 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