Patents by Inventor Masahiko Fujita

Masahiko Fujita 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: 20210273256
    Abstract: A lithium secondary cell includes a cell case that includes a covering region and an outer peripheral region. The covering region is a rectangular region overlaid on the positive electrode, the separator, and the negative electrode in a direction of superposition. The outer peripheral region is a rectangular frame-like region surrounding the covering region. The outer peripheral region includes first regions that are band-like regions extending respectively along a pair of long sides. In the first regions, a first sheet portion and a second sheet portion are bonded together. A second region is a band-like region extending along the covering region between the covering region and at least one first region out of the pair of first regions. In the second region, the first sheet portion and the second sheet portion are in contact with or in close proximity to each other without being bonded together.
    Type: Application
    Filed: May 18, 2021
    Publication date: September 2, 2021
    Applicant: NGK INSULATORS, LTD.
    Inventors: Masahiko HIBINO, Syunsuke MIZUKAMI, Takahiro NAKANISHI, Yuuki FUJITA
  • Patent number: 10840844
    Abstract: To provide a controller for a rotary electric machine capable of suppressing occurrence of an angle interval when the rotary electric machine cannot output torque, even if the ON angle interval of the switching devices is set smaller than 120 degrees in the rectangular wave control. A controller for a rotary electric machine performs a rectangular wave control to a rotary electric machine which has 2 groups of three-phase windings, with a phase difference between groups; and switches a first control mode and a second control mode according to a switching condition; wherein the first control mode is a mode which sets an ON angle interval to an angle within a range from 120 degrees to 180 degrees; and wherein the second control mode is a mode which sets the ON angle interval to an angle within a range from 90 degrees to 120 degrees.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: November 17, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kenichi Akita, Masahiko Fujita, Norio Matsumoto, Toshiyuki Yoshizawa, Mitsunori Tabata
  • Patent number: 10676306
    Abstract: A sheet discharge device of the present invention includes discharge rollers configured to transport a sheet in a predetermined transport direction and to discharge the sheet to a discharge tray, and an upper discharge tray disposed above the discharge tray with a space being interposed therebetween. A bottom face of the upper discharge tray that faces the discharge tray includes a guide rib extending in an oblique direction inclined relative to the transport direction.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: June 9, 2020
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshiharu Yoneda, Masahiko Fujita, Masaharu Kimura, Noriaki Taguchi, Yuji Sawa
  • Patent number: 10627258
    Abstract: In a related-art resolver, a front and a back of a stator core cannot be distinguished, and it is difficult to mass-produce the resolver while matching directions of shear drops and burrs. Thus, assembly accuracy of the resolver is degraded. Further, productivity and assembling ability are degraded because electromagnetic steel sheets are laminated by rotary lamination. The present invention provides a resolver including: a resolver stator including: a stator core formed of electromagnetic steel sheets, which have teeth, and are laminated without rotary lamination; a one-phase excitation winding; and two-phase output windings; and a resolver rotor arranged to be opposed to the resolver stator, in which the stator core has marks which enable distinction of a rolling direction of the stator core and distinction of a front and a back of the stator core.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: April 21, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yusuke Morita, Atsushi Yamamoto, Masahiko Fujita, Naohiro Motoishi, Kazumasa Ito, Masatsugu Nakano
  • Patent number: 10572201
    Abstract: An information processing apparatus includes a display controller that causes an image to be output to be displayed if an operating instruction of a user has been received at an image linked with each piece of outputtable content.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: February 25, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Keisuke Kubo, Masahiko Fujita, Takeyasu Koyanagi, Yusuke Sakurai
  • Publication number: 20190372499
    Abstract: To provide a controller for a rotary electric machine capable of suppressing occurrence of an angle interval when the rotary electric machine cannot output torque, even if the ON angle interval of the switching devices is set smaller than 120 degrees in the rectangular wave control. A controller for a rotary electric machine performs a rectangular wave control to a rotary electric machine which has 2 groups of three-phase windings, with a phase difference between groups; and switches a first control mode and a second control mode according to a switching condition; wherein the first control mode is a mode which sets an ON angle interval to an angle within a range from 120 degrees to 180 degrees; and wherein the second control mode is a mode which sets the ON angle interval to an angle within a range from 90 degrees to 120 degrees.
    Type: Application
    Filed: April 16, 2019
    Publication date: December 5, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kenichi AKITA, Masahiko Fujita, Norio Matsumoto, Toshiyuki Yoshizawa, Mitsunori Tabata
  • Patent number: 10432069
    Abstract: The present invention is concerning a controller-integrated rotary electric machine having a power circuit portion provided between an external power source and a stator winding of a rotary electric machine main body, wherein the power circuit portion includes: a positive-side power input/output terminal and a negative-side power input/output terminal that are electrically connected to the external power source; a power module that performs power conversion between the external power source and the stator winding; and a single heat sink that cools the power module, the positive-side power input/output terminal being fixed to the single heat sink via an insulating material, and the negative-side power input/output terminal being fixed directly to the single heat sink.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: October 1, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Toshiaki Kashihara, Yoshinobu Utsumi, Masahiko Fujita
  • Publication number: 20190286396
    Abstract: An information processing apparatus includes a display controller that causes an image to be output to be displayed if an operating instruction of a user has been received at an image linked with each piece of outputtable content.
    Type: Application
    Filed: September 4, 2018
    Publication date: September 19, 2019
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Keisuke KUBO, Masahiko FUJITA, Takeyasu KOYANAGI, Yusuke SAKURAI
  • Publication number: 20190144232
    Abstract: A sheet pressing mechanism includes a pressing member configured to press a sheet that has been deformed to corrugate in a width direction that is orthogonal to a sheet discharging direction when the sheet is discharged toward a discharge tray. The pressing member has a first pressing area for pressing portions other than a top portion of a crest of the sheet when the discharged sheet comes into contact with the pressing member.
    Type: Application
    Filed: November 8, 2018
    Publication date: May 16, 2019
    Inventors: YUUSUKE ITAGAKI, MASAHIKO FUJITA, TATSUFUMI ATSUMI
  • Patent number: 10263495
    Abstract: In a rotary electric machine, a power supply unit includes a metal casing, a power circuit unit mounted in the metal casing, and a control board for controlling an operation of the power circuit unit, and supplies power to a motor main body. The power circuit unit includes a plurality of power semiconductor components and a capacitor unit. The plurality of power semiconductor components and the capacitor unit are disposed alternately on a plane perpendicular to a rotary shaft of the motor main body.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: April 16, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Jun Tahara, Masaki Kato, Masahiko Fujita
  • Patent number: 10192811
    Abstract: When a power semiconductor device is energized, heat generated from upper-side power semiconductor chips mounted on a P-potential electrode transfers to a first heat mass portion and a second heat mass portion, and heat generated from lower-side power semiconductor chips mounted on a intermediate potential electrode transfers to a resistor. A lead frame, the power semiconductor chip, an inner lead and the resistor are placed in symmetry with respect to a centerline, which can reduce the difference among the temperature increases of the power semiconductor chips when energized. In this way, transient temperature increase of the power semiconductor chip can be suppressed without adding a new member, such as a heat diffusion plate.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: January 29, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tatsuya Fukase, Masaki Kato, Masahiko Fujita, Manabu Horita
  • Publication number: 20190010007
    Abstract: A sheet discharge device of the present invention includes discharge rollers configured to transport a sheet in a predetermined transport direction and to discharge the sheet to a discharge tray, and an upper discharge tray disposed above the discharge tray with a space being interposed therebetween. A bottom face of the upper discharge tray that faces the discharge tray includes a guide rib extending in an oblique direction inclined relative to the transport direction.
    Type: Application
    Filed: August 29, 2018
    Publication date: January 10, 2019
    Inventors: Yoshiharu YONEDA, Masahiko FUJITA, Masaharu KIMURA, Noriaki TAGUCHI, Yuji SAWA
  • Patent number: 10170957
    Abstract: A controlling device integrated rotating electric machine including a rotating electric machine's main body having a rotor winding and a stator winding, a power converter circuit connected to the rotor winding and the stator winding and having a control board and a power module and a smoothing condenser, a heat sink having a container portion swelling out towards a front side and attached to a rear side of the rotating electric machine's main body, a case, containing the control board and the power module, formed of a power supply wiring and a grounding wiring connected to a battery placed outside, and fixed to a rear side of the heat sink, and a sealing resin body sealing the control board and the power module contained in the case, wherein the smoothing condenser is joined with the power supply wiring and the grounding wiring, and is contained in the container portion.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: January 1, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Mitsunori Ishizaki, Tomoaki Shimano, Yosuke Uno, Tomohiro Kurita, Masahiko Fujita
  • Patent number: 10090736
    Abstract: A rotary electric machine integrated with a control device includes: a housing composed of a front bracket and a rear bracket and supporting a rotor and a stator; and a control device attached to the rear bracket. The control device is composed of: a power module having a switching element that is for energizing a stator winding of the stator; a field module having a switching element that is for energizing a field winding of the rotor; a heat sink cooling the power module and the field module; and a control board having a control circuit that controls the switching elements, the control device also including: a battery end terminal; and a grounding end terminal. Then, the heat sink is attached to the rear bracket while being insulated therefrom.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: October 2, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tomoaki Shimano, Masahiko Fujita
  • Patent number: 10087030
    Abstract: A sheet discharge device of the present invention includes discharge rollers configured to transport a sheet in a predetermined transport direction and to discharge the sheet to a discharge tray, and an upper discharge tray disposed above the discharge tray with a space being interposed therebetween. A bottom face of the upper discharge tray that faces the discharge tray includes a guide rib extending in an oblique direction inclined relative to the transport direction.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: October 2, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshiharu Yoneda, Masahiko Fujita, Masaharu Kimura, Noriaki Taguchi, Yuji Sawa
  • Patent number: 10069374
    Abstract: A rotary electric machine in accordance with the invention includes: a case including a front-side housing and a rear-side housing; a rotor having a field winding placed in the case; a stator having an armature winding placed in the case; a power module for energizing armature current that flows in the armature winding; a heat sink, on which the power module is mounted, for cooling the power module; a field circuit module for controlling field current that flows in the field winding; and a control circuit for controlling the operation of the power module and the field circuit module, wherein the power module includes a pair of power modules mounted opposite to each other on a base surface of the heat sink, and the heat sink includes a plurality of cooling fins placed thereon.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: September 4, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Naohide Maeda, Masahiko Fujita
  • Patent number: 10042292
    Abstract: An image forming apparatus includes a transfer unit and a pair of measuring units. The transfer unit transfers an image onto at least one recording medium by applying a voltage between the at least one recording medium and the image along a thickness direction of the at least one recording medium. Before the transfer unit applies the voltage, the pair of measuring units measure respective electrical resistance values of a front surface and a rear surface of the at least one recording medium in a direction crossing the thickness direction.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: August 7, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Takashi Ochi, Hisashi Murase, Yuki Yokoyama, Takashi Ohashi, Keitaro Mori, Masahiko Fujita
  • Patent number: 9935526
    Abstract: A power module composite includes a power module (34) in which switching devices (32) included in an electric-power conversion circuit are molded, a driver module (37) that includes a control circuit (35) for controlling the switching devices (32) and is molded, a housing (39) containing the power module (34) and the driver module (37), and a heat sink (38) that is fixed to the housing (39) and refrigerates the switching devices (32); the power module 34 and the driver module 37 are mounted in that order on the heat sink (38) in such a way as to be superimposed on each other.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: April 3, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masaki Kato, Masahiko Fujita
  • Publication number: 20170357193
    Abstract: An image forming apparatus includes a transfer unit and a pair of measuring units. The transfer unit transfers an image onto at least one recording medium by applying a voltage between the at least one recording medium and the image along a thickness direction of the at least one recording medium. Before the transfer unit applies the voltage, the pair of measuring units measure respective electrical resistance values of a front surface and a rear surface of the at least one recording medium in a direction crossing the thickness direction.
    Type: Application
    Filed: November 9, 2016
    Publication date: December 14, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Takashi OCHI, Hisashi MURASE, Yuki YOKOYAMA, Takashi OHASHI, Keitaro MORI, Masahiko FUJITA
  • Publication number: 20170353084
    Abstract: The present invention is concerning a controller-integrated rotary electric machine having a power circuit portion provided between an external power source and a stator winding of a rotary electric machine main body, wherein the power circuit portion includes: a positive-side power input/output terminal and a negative-side power input/output terminal that are electrically connected to the external power source; a power module that performs power conversion between the external power source and the stator winding; and a single heat sink that cools the power module, the positive-side power input/output terminal being fixed to the single heat sink via an insulating material, and the negative-side power input/output terminal being fixed directly to the single heat sink.
    Type: Application
    Filed: November 8, 2016
    Publication date: December 7, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Toshiaki KASHIHARA, Yoshinobu UTSUMI, Masahiko FUJITA