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: 20240034683
    Abstract: A powder that is heated by light, the powder comprising a silicon monoxide particle and another particle other than the silicon monoxide particle, wherein the another particle includes, at least one type of particle selected from the group including an aluminum oxide particle, a silicon dioxide particle, and an oxide particle which includes silicon and aluminum as elements, and wherein in a case where the another particle are converted into oxides represented by the Al2O3 and the SiO2, x, y, and z representing mass fractions of Al2O3, SiO2, and SiO, respectively, in an entirety of the powder satisfy relationships.
    Type: Application
    Filed: October 9, 2023
    Publication date: February 1, 2024
    Inventors: Shunsuke Murakami, YASUSHI SHIMIZU, NOBUHIRO YASUI, KANAKO OSHIMA
  • Patent number: 11557936
    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: Grant
    Filed: October 15, 2020
    Date of Patent: January 17, 2023
    Assignee: NIDEC CORPORATION
    Inventors: Kosuke Ogawa, Takashi Hattori, Shunsuke Murakami, Takao Atarashi, Hidehiro Haga
  • Patent number: 11539260
    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: Grant
    Filed: March 25, 2021
    Date of Patent: December 27, 2022
    Assignee: NIDEC CORPORATION
    Inventors: Yusaku Yoshida, Shunsuke Murakami, Yu Wang, Ting Huang
  • Publication number: 20220379369
    Abstract: A casting core containing a ceramic and having sufficient mechanical strength to withstand a casting process over a long period of time and good solubility in alkaline solutions. The casting core includes a core, a surface layer, and an intermediate layer between the core and the surface layer. The intermediate layer has a lower relative density than the surface layer and the core.
    Type: Application
    Filed: April 6, 2022
    Publication date: December 1, 2022
    Inventors: Nobuhiro Yasui, Yasushi Shimizu, Shunsuke Murakami, Kanako Oshima
  • Publication number: 20220320983
    Abstract: A motor includes: a rotor arranged in a rotatable manner centered on a central axis and having a shaft and a rotor core arranged around the shaft; a stator arranged to face the rotor in a radial direction; a detector in which at least a portion is located on one side of the rotor core in an axial direction; and a housing accommodating the rotor, the stator, and the detector. The detector has a tubular fixed portion fixed to the rotor and an extending portion extending from an upper side of the fixed portion in the axial direction toward an outer side of the fixed portion in the radial direction. The extending portion is located on one side of the rotor core in the axial direction. At least a portion of the extending portion and the rotor are in contact with each other in the axial direction.
    Type: Application
    Filed: March 30, 2022
    Publication date: October 6, 2022
    Applicant: NIDEC CORPORATION
    Inventors: Shunsuke MURAKAMI, Hiroshi SAMBUICHI
  • Patent number: 11444503
    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: Grant
    Filed: September 28, 2018
    Date of Patent: September 13, 2022
    Assignee: NIDEC CORPORATION
    Inventors: Tatsuya Onishi, Kosuke Ogawa, Takashi Seguchi, Shunsuke Murakami
  • Publication number: 20220227670
    Abstract: A method for manufacturing a ceramic article including (i) a step of irradiating a powder mainly containing a ceramic material with an energy beam to sinter or melt and solidify the powder into a solidified portion, wherein the step is repeated a predetermined number of times to sequentially bond the resulting solidified portions together to obtain a ceramic modeling object, (ii) a step of allowing the shaped ceramic object to absorb a metal component-containing liquid that contains inorganic particles containing a metal element; and (iii) a step of heating the shaped ceramic object that has absorbed the metal component-containing liquid.
    Type: Application
    Filed: April 7, 2022
    Publication date: July 21, 2022
    Inventors: Kanako Oshima, Nobuhiro Yasui, Yasushi Shimizu, Yoshinori Kotani, Shunsuke Murakami
  • Publication number: 20220227021
    Abstract: (i) a step of disposing a powder that includes an absorber absorbing light of a wavelength included in a laser beam to be irradiated and silicon dioxide as a main component; (ii) a step of sintering or melting and solidifying the powder by irradiating the powder with a laser beam; and (iii) a step of heat-treating a shaped object formed by repeating the steps (i) and (ii) at 1470° C. or more and less than 1730° C.
    Type: Application
    Filed: April 7, 2022
    Publication date: July 21, 2022
    Inventors: Shunsuke Murakami, Yasushi Shimizu, Nobuhiro Yasui, Kanako Oshima
  • Patent number: 11336145
    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: Grant
    Filed: March 30, 2018
    Date of Patent: May 17, 2022
    Assignee: NIDEC CORPORATION
    Inventors: Yoshiaki Yamashita, Shunsuke Murakami, Kosuke Ogawa
  • Patent number: 11277047
    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: Grant
    Filed: February 18, 2020
    Date of Patent: March 15, 2022
    Assignee: NIDEC CORPORATION
    Inventors: Shunsuke Murakami, Tatsuya Onishi
  • Publication number: 20210362417
    Abstract: The packaged 3-dimensional modeling powder material, including 3-dimensional modeling powder material including plural types of particles, and a storage container configured to contain the modeling powder material in an inside of the storage container in a pressured state.
    Type: Application
    Filed: May 11, 2021
    Publication date: November 25, 2021
    Inventors: Yasuhiro Sekine, Yasushi Shimizu, Nobuhiro Yasui, Shunsuke Murakami, Kanako Oshima
  • 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
  • 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