Patents by Inventor Yusuke Matsuoka

Yusuke Matsuoka 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: 10384890
    Abstract: A paper feeding device of an embodiment includes a paper feed tray, a blower, and a flow regulating member. A paper bundle in which a plurality of sheets of paper are stacked can be placed on the paper feed tray. The blower is positioned next to the paper bundle placed on the paper feed tray. The blower can generate airflow. The flow regulating member is positioned above the paper bundle placed on the paper feed tray. The airflow from the blower causes the flow regulating member to generate a negative pressure between the flow regulating member and the uppermost sheet of paper of the paper bundle.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: August 20, 2019
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Kei Matsuoka, Shinichi Tatsuta, Shunsuke Hattori, Takamitsu Sunaoshi, Yusuke Hashizume, Masakazu Iwamoto
  • Publication number: 20190233960
    Abstract: Provided are a metal electrodeposition cathode plate, the non-conductive film of which is not susceptible to failure and which can be used repeatedly, and a production method therefor. This cathode plate comprises a metal plate on which multiple disc-shaped protrusions are disposed, and a non-conductive film formed on the non-protrusion flat areas of the metal plate. The minimum film thickness Y of the non-conductive film at positions between the centers of adjacent protrusions is the same or greater than the height X of the protrusions. It is preferred that the height X of the protrusions is 50 ?m to 1000 ?m.
    Type: Application
    Filed: July 10, 2017
    Publication date: August 1, 2019
    Applicant: SUMITOMO METAL MINING CO., LTD.
    Inventors: Hiroto Watanabe, Itsumi Matsuoka, Yusuke Senba, Hiroshi Kobayashi
  • Publication number: 20190150275
    Abstract: An optical circuit board sheet which has little or no warpage to have no cracking in cores, and an opto-electric hybrid board sheet including the same are provided. The optical circuit board sheet includes: an insulative sheet; an under cladding layer formed on a first surface of the insulative sheet; and at least one core formed on a surface of the under cladding layer. A hole is formed in a portion of the surface of the under cladding layer other than where the core is formed. The area percentage of an opening area of the hole is in the range of 5% to 99% with respect to the first surface of the insulative sheet.
    Type: Application
    Filed: April 14, 2017
    Publication date: May 16, 2019
    Applicant: NITTO DENKO CORPORATION
    Inventors: Naoyuki Tanaka, Yusuke Matsuoka, Yasuto Ishimaru
  • Publication number: 20190085215
    Abstract: Provided is a pressure sensitive adhesive sheet including a resin layer on a substrate or a release material, at least a surface (?) of the resin layer on the side opposite to the side thereof on which the substrate or the release material is provided having pressure sensitive adhesiveness, wherein a concave portion and plural flat faces having an irregular shape exist in a region (Dc) surrounded by an arbitrarily predetermined circle on the surface (?) of the resin layer; and with respect to one or more flat faces (S) among the plural flat faces, the one or more flat faces (S) excluding flat faces having a cumulative relative frequency of 30% or less determined by adding the relative frequency from the respective flat faces with a smaller area, an rMAX value of the flat faces (S) calculated from specified operations is 0.
    Type: Application
    Filed: September 27, 2016
    Publication date: March 21, 2019
    Applicant: LINTEC CORPORATION
    Inventors: Kazue UEMURA, Yusuke MATSUOKA, Takamasa KASE, Kiichiro KATO
  • Publication number: 20180265749
    Abstract: A pressure sensitive adhesive sheet including, on a substrate or a release material, a resin layer, at least a surface (?) of the resin layer on the opposite to the side on which the substrate or release material is provided having pressure sensitive adhesiveness, wherein a concave portion and a flat face exist on the surface (?) of the resin layer, and a width of the concave portion observed from the side of the surface (?) is non-uniform, and in a region (D) of 8 mm in lengthĂ—10 mm in width as freely-selected on the surface (?), a concave portion having an area of 70 to 99.99% relative to 100% of a total area of the concave portions existing in the region (D) exists.
    Type: Application
    Filed: September 27, 2016
    Publication date: September 20, 2018
    Applicant: LINTEC CORPORATION
    Inventors: Kazue UEMURA, Kiichiro KATO, Yumiko AMINO, Koji TSUCHIBUCHI, Takamasa KASE, Yusuke MATSUOKA
  • Patent number: 9496774
    Abstract: According to one embodiment, a rotor is configured by a rotor core and magnetic poles. Two or more types of permanent magnets are used such that each product of coercivity and thickness in the magnetization direction becomes different. A stator is located outside the rotor with air gap therebetween and configured by an armature core winding. At least one permanent magnet is magnetized by a magnetic field by a current of the armature winding to change a magnetic flux content thereof irreversibly. A short circuited coil is provided to surround a magnetic path portion of the other permanent magnet excluding the magnet changed irreversibly and a portion adjacent to the other permanent magnet where the magnetic flux leaks. A short-circuit current is generated in the short circuited coil by the magnetic flux generated by conducting a magnetization current to the winding. A magnetic field is generated by the short-circuit current.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: November 15, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yutaka Hashiba, Kazuto Sakai, Norio Takahashi, Kazuaki Yuuki, Masanori Arata, Yusuke Matsuoka, Motoyasu Mochizuki, Tadashi Tokumasu
  • Patent number: 9490684
    Abstract: According to one embodiment, a rotor is configured by a rotor core and magnetic poles. Two or more types of permanent magnets are used such that each product of coercivity and thickness in the magnetization direction becomes different. A stator is located outside the rotor with air gap therebetween and configured by an armature core winding. At least one permanent magnet is magnetized by a magnetic field by a current of the armature winding to change a magnetic flux content thereof irreversibly. A short circuited coil is provided to surround a magnetic path portion of the other permanent magnet excluding the magnet changed irreversibly and a portion adjacent to the other permanent magnet where the magnetic flux leaks. A short-circuit current is generated in the short circuited coil by the magnetic flux generated by conducting a magnetization current to the winding. A magnetic field is generated by the short-circuit current.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: November 8, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yutaka Hashiba, Kazuto Sakai, Norio Takahashi, Kazuaki Yuuki, Masanori Arata, Yusuke Matsuoka, Motoyasu Mochizuki, Tadashi Tokumasu
  • Patent number: 9373992
    Abstract: According to one embodiment, a rotor is configured by a rotor core and magnetic poles. Two or more types of permanent magnets are used such that each product of coercivity and thickness in the magnetization direction becomes different. A stator is located outside the rotor with air gap therebetween and configured by an armature core winding. At least one permanent magnet is magnetized by a magnetic field by a current of the armature winding to change a magnetic flux content thereof irreversibly. A short circuited coil is provided to surround a magnetic path portion of the other permanent magnet excluding the magnet changed irreversibly and a portion adjacent to the other permanent magnet where the magnetic flux leaks. A short-circuit current is generated in the short circuited coil by the magnetic flux generated by conducting a magnetization current to the winding. A magnetic field is generated by the short-circuit current.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: June 21, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yutaka Hashiba, Kazuto Sakai, Norio Takahashi, Kazuaki Yuuki, Masanori Arata, Yusuke Matsuoka, Motoyasu Mochizuki, Tadashi Tokumasu
  • Patent number: 8994240
    Abstract: A permanent magnet type rotating electrical machine includes a rotor having a rotor core. Magnet holes circumferentially arranged at regular intervals in the rotor core include pairs of first magnet holes and pairs of second magnet holes. Each pair of first magnet holes are symmetric with respect to an imaginary line extending through a rotor core center. Each pair of second magnet holes are located on a radially inner side of the rotor core and are symmetric with respect to the imaginary line. Each pair of second magnet holes are located on an inner circumferential side of the paired first magnet holes with respect to a radial direction of the rotor core. A first magnet angle made by permanent magnets located in each pair of first magnet holes is larger than a second magnet angle made by permanent magnets located in each pair of second magnet holes.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: March 31, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Industrial Products Manufacturing Corporation
    Inventors: Yusuke Matsuoka, Masakatsu Matsubara, Wataru Ito
  • Publication number: 20140283374
    Abstract: According to one embodiment, a rotor is configured by a rotor core and magnetic poles. Two or more types of permanent magnets are used such that each product of coercivity and thickness in the magnetization direction becomes different. A stator is located outside the rotor with air gap therebetween and configured by an armature core winding. At least one permanent magnet is magnetized by a magnetic field by a current of the armature winding to change a magnetic flux content thereof irreversibly. A short circuited coil is provided to surround a magnetic path portion of the other permanent magnet excluding the magnet changed irreversibly and a portion adjacent to the other permanent magnet where the magnetic flux leaks. A short-circuit current is generated in the short circuited coil by the magnetic flux generated by conducting a magnetization current to the winding. A magnetic field is generated by the short-circuit current.
    Type: Application
    Filed: June 4, 2014
    Publication date: September 25, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yutaka HASHIBA, Kazuto Sakai, Norio Takahashi, Kazuaki Yuuki, Masanori Arata, Yusuke Matsuoka, Motoyasu Mochizuki, Tadashi Tokumasu
  • Publication number: 20140285051
    Abstract: According to one embodiment, a rotor is configured by a rotor core and magnetic poles. Two or more types of permanent magnets are used such that each product of coercivity and thickness in the magnetization direction becomes different. A stator is located outside the rotor with air gap therebetween and configured by an armature core winding. At least one permanent magnet is magnetized by a magnetic field by a current of the armature winding to change a magnetic flux content thereof irreversibly. A short circuited coil is provided to surround a magnetic path portion of the other permanent magnet excluding the magnet changed irreversibly and a portion adjacent to the other permanent magnet where the magnetic flux leaks. A short-circuit current is generated in the short circuited coil by the magnetic flux generated by conducting a magnetization current to the winding. A magnetic field is generated by the short-circuit current.
    Type: Application
    Filed: June 4, 2014
    Publication date: September 25, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yutaka Hashiba, Kazuto Sakai, Norio Takahashi, Kazuaki Yuuki, Masanori Arata, Yusuke Matsuoka, Motoyasu Mochizuki, Tadashi Tokumasu
  • Publication number: 20140283372
    Abstract: According to one embodiment, a rotor is configured by a rotor core and magnetic poles. Two or more types of permanent magnets are used such that each product of coercivity and thickness in the magnetization direction becomes different. A stator is located outside the rotor with air gap therebetween and configured by an armature core winding. At least one permanent magnet is magnetized by a magnetic field by a current of the armature winding to change a magnetic flux content thereof irreversibly. A short circuited coil is provided to surround a magnetic path portion of the other permanent magnet excluding the magnet changed irreversibly and a portion adjacent to the other permanent magnet where the magnetic flux leaks. A short-circuit current is generated in the short circuited coil by the magnetic flux generated by conducting a magnetization current to the winding. A magnetic field is generated by the short-circuit current.
    Type: Application
    Filed: June 4, 2014
    Publication date: September 25, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yutaka HASHIBA, Kazuto SAKAI, Norio TAKAHASHI, Kazuaki YUUKI, Masanori ARATA, Yusuke MATSUOKA, Motoyasu MOCHIZUKI, Tadashi TOKUMASU
  • Patent number: 8796898
    Abstract: According to one embodiment, a rotor is configured by a rotor core and magnetic poles. Two or more types of permanent magnets are used such that each product of coercivity and thickness in the magnetization direction becomes different. A stator is located outside the rotor with air gap therebetween and configured by an armature core winding. At least one permanent magnet is magnetized by a magnetic field by a current of the armature winding to change a magnetic flux content thereof irreversibly. A short circuited coil is provided to surround a magnetic path portion of the other permanent magnet excluding the magnet changed irreversibly and a portion adjacent to the other permanent magnet where the magnetic flux leaks. A short-circuit current is generated in the short circuited coil by the magnetic flux generated by conducting a magnetization current to the winding. A magnetic field is generated by the short-circuit current.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: August 5, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yutaka Hashiba, Kazuto Sakai, Norio Takahashi, Kazuaki Yuuki, Masanori Arata, Yusuke Matsuoka, Motoyasu Mochizuki, Tadashi Tokumasu
  • Patent number: 8674575
    Abstract: An increase of the magnetization current can be restrained during demagnetization and magnetization, and a variable speed operation can be achieved at a high power output over a wide range of from a low speed to a high speed. A rotor 1 is configured by a rotor core 2, permanent magnets 3 having a small value as the product of the coercivity and the thickness in the magnetization direction thereof, and permanent magnets 4 having a large value as the product. When reducing a flux linkage of the permanent magnets 3, a magnetic field directed to the reverse direction of the magnetization direction of the permanent magnets 3 due to a current of an armature coil is caused to act on them. When increasing a flux linkage of the permanent magnets 3, a magnetic field directed to the same direction as the magnetization direction of the permanent magnets 3 due to a current of an armature coil is caused to act on them.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: March 18, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuto Sakai, Yutaka Hashiba, Yosuke Otsubo, Yusuke Matsuoka, Norio Takahashi, Tadashi Tokumasu
  • Patent number: 8653710
    Abstract: A rotor has rotor cores divided in the axial direction. A permanent magnet is mounted at the position of each of the magnetic poles of cores. The permanent magnet of each magnetic pole is configured by a single tabular member that penetrates the two divided cores in the axial direction. Convex parts are respectively provided on the outer peripheries of the respective magnetic poles of the rotor cores along the axial direction of the rotor. The convex parts are provided to positions that are displaced for each of the two divided cores. The magnetic flux density increases in the convex parts, which becomes the magnetic pole center. Since the convex parts positions are displaced to each other, a skew function can be exhibited even if the permanent magnet is mounted at the same position.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: February 18, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Norio Takahashi, Kazuto Sakai, Yutaka Hashiba, Kazuaki Yuuki, Masanori Arata, Yusuke Matsuoka, Tadashi Tokumasu
  • Publication number: 20120194026
    Abstract: A permanent magnet type rotating electrical machine includes a rotor having a rotor core. Magnet holes circumferentially arranged at regular intervals in the rotor core include pairs of first magnet holes and pairs of second magnet holes. Each pair of first magnet holes are symmetric with respect to an imaginary line extending through a rotor core center. Each pair of second magnet holes are located on a radially inner side of the rotor core and are symmetric with respect to the imaginary line. Each pair of second magnet holes are located on an inner circumferential side of the paired first magnet holes with respect to a radial direction of the rotor core. A first magnet angle made by permanent magnets located in each pair of first magnet holes is larger than a second magnet angle made by permanent magnets located in each pair of second magnet holes.
    Type: Application
    Filed: January 27, 2012
    Publication date: August 2, 2012
    Inventors: Yusuke Matsuoka, Masakatsu Matsubara, Wataru Ito
  • Publication number: 20110309706
    Abstract: According to one embodiment, a rotor 1 has rotor cores 2a, 2b divided in the axial direction. a permanent magnet 30 is mounted at the position of each of the magnetic poles of cores. The permanent magnet 30 of each magnetic pole is configured by a single tabular member that penetrates the two divided cores in the axial direction. Convex parts 31a, 31b are respectively provided on the outer peripheries of the respective magnetic poles of the rotor cores along the axial direction of the rotor. The convex parts 31a, 31b are provided to positions that are displaced for each of the two divided cores. The magnetic flux density increases in the convex parts, which becomes the magnetic pole center. Since the convex parts positions are displaced to each other, a skew function can be exhibited even if the permanent magnet is mounted at the same position.
    Type: Application
    Filed: December 16, 2009
    Publication date: December 22, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Norio Takahashi, Kazuto Sakai, Yutaka Hashiba, Kazuaki Yuuki, Masanori Arata, Yusuke Matsuoka, Tadashi Tokumasu
  • Publication number: 20110304235
    Abstract: According to one embodiment, a rotor is configured by a rotor core and magnetic poles. Two or more types of permanent magnets are used such that each product of coercivity and thickness in the magnetization direction becomes different. A stator is located outside the rotor with air gap therebetween and configured by an armature core winding. At least one permanent magnet is magnetized by a magnetic field by a current of the armature winding to change a magnetic flux content thereof irreversibly. A short circuited coil is provided to surround a magnetic path portion of the other permanent magnet excluding the magnet changed irreversibly and a portion adjacent to the other permanent magnet where the magnetic flux leaks. A short-circuit current is generated in the short circuited coil by the magnetic flux generated by conducting a magnetization current to the winding. A magnetic field is generated by the short-circuit current.
    Type: Application
    Filed: December 15, 2009
    Publication date: December 15, 2011
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Yutaka Hashiba, Kazuto Sakai, Norio Takahashi, Kazuaki Yuuki, Masanori Arata, Yusuke Matsuoka, Motoyasu Mochizuki, Tadashi Tokumasu
  • Publication number: 20110175478
    Abstract: An increase of the magnetization current can be restrained during demagnetization and magnetization, and a variable speed operation can be achieved at a high power output over a wide range of from a low speed to a high speed. A rotor 1 is configured by a rotor core 2, permanent magnets 3 having a small value as the product of the coercivity and the thickness in the magnetization direction thereof, and permanent magnets 4 having a large value as the product. When reducing a flux linkage of the permanent magnets 3, a magnetic field directed to the reverse direction of the magnetization direction of the permanent magnets 3 due to a current of an armature coil is caused to act on them. When increasing a flux linkage of the permanent magnets 3, a magnetic field directed to the same direction as the magnetization direction of the permanent magnets 3 due to a current of an armature coil is caused to act on them.
    Type: Application
    Filed: June 19, 2009
    Publication date: July 21, 2011
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Kazuto Sakai, Yutaka Hashiba, Yosuke Otsubo, Yusuke Matsuoka, Norio Takahashi, Tadashi Tokumasu
  • Publication number: 20090097790
    Abstract: A bearing capable of enduring long use in a four-cycle engine is provided. The bearing is provided with a hollow cylindrical retainer 1 made of steel and rotatably retaining a plurality of needle rollers 4. The retainer 1 is subjected to a sulphonitriding treatment to form a sulphonitrided layer 11 on a surface of the retainer 1. The sulphonitrided layer 11 is made up of a nitrogen-compound single-layer 12 deposited on the surface of the retainer 1 made of steel, and a sulfur-compound porous layer 13 formed continuously on the nitrogen-compound single-layer 12 and forming a surface layer of the sulphonitrided layer 11.
    Type: Application
    Filed: October 9, 2008
    Publication date: April 16, 2009
    Applicant: Nippon Thompson Co., Ltd.
    Inventors: Kengo Hidano, Hiroaki Izumi, Osamu Suzuki, Yusuke Matsuoka