Patents by Inventor Daisuke Kitajima

Daisuke Kitajima 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: 20200293000
    Abstract: Provided is a watch, including: an exterior case having electroconductivity; an operating member having electroconductivity, which is inserted into the exterior case through an opening formed through the exterior case, and which is configured to accept an operation performed by a user; and an electrostatic motor including: an electret substrate having an electret surface on which electret films being electrically charged are provided; a counter substrate, on which electrodes to be arranged so as to be opposed to the electret films are provided; and a rotary shaft configured to rotate the electret substrate and the counter substrate relative to each other, wherein the operating member and the exterior case are electrically continuous with each other via a conduction path formed so as to avoid overlapping with the electret surface in plan view.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 17, 2020
    Inventors: Kenji SHIMODA, Yasuo KITAJIMA, Daisuke TOKUNAGA, Shinnosuke SAKATA, Koki MINE, Yuta FURUDATE, Kazutaka IGARASHI
  • Patent number: 10763716
    Abstract: An axial-air-gap rotating electric machine with a stator bobbin is provided. The bobbin renders the respective turn counts of windings in the machine the same and minimizes the lengths of connecting wires between continuous windings regardless of the continuous turn count, the direction in which each winding is wound, and whether the number of stages is odd or even. The bobbin, which has a tubular shape that substantially matches the exterior shape of a core, is provided with flanges that extend outwards from near the respective openings in the bobbin. One of the flanges has two first notches, and the other flange has a second notch. The axial positions of the starting and finishing ends of coils on adjacent stator cores are the same, and the flanges containing the notches through which the ends of the coils are run are on the same side with respect to the openings.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: September 1, 2020
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Hirooki Tokoi, Daisuke Kitajima, Tomonori Kawagoe, Katsuyuki Yamazaki, Toru Sakai, Shuuichi Takahashi, Toshifumi Suzuki, Norihisa Iwasaki, Ryousou Masaki, Yuji Enomoto
  • Patent number: 10731615
    Abstract: Responsiveness of an electromagnetic flow-rate control valve provided for closing a suction valve is improved and a discharge flow rate is controlled to a desired value. A flow-rate control valve includes a fixed core arranged on an inner circumferential side of a coil, a yoke arranged on an outer circumferential side of the coil, and a cover portion opposed to the coil in an axial direction, in which the fixed core has an enlarged portion in contact with the cover portion in the axial direction and enlarging toward the coil, and the cover portion is regulated in the axial direction only by a contact portion with the fixed core.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: August 4, 2020
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Ryo Kusakabe, Kenichiro Tokuo, Satoshi Usui, Minoru Hashida, Masayuki Suganami, Atsushi Hohkita, Eiichi Kubota, Daisuke Kitajima, Hiroshi Horie
  • Patent number: 10704230
    Abstract: A shovel includes a lower traveling body, an upper rotating body, an attachment including a boom and an arm, a controller, an engine, and a hydraulic pump that is driven by the engine and discharges hydraulic oil to drive the attachment. The controller is configured to obtain a hydraulic load applied to the attachment and calculate an engine speed command at predetermined time intervals based on the obtained hydraulic load.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: July 7, 2020
    Assignees: SUMITOMO HEAVY INDUSTRIES, LTD., SUMITOMO (S.H.I.) CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Eisuke Matsuzaki, Daisuke Kitajima
  • Publication number: 20200209809
    Abstract: Provided is an electromechanical transducer to be detachably attached to an electronic device, the transducer including: first and second plates; a rotor rotating around a rotating shaft supported by the plates; a fixed substrate disposed between the plates and facing the rotor; a charged portion having sub-regions disposed on the rotor at intervals in a rotating direction thereof so as to face the fixed substrate; an opposing electrode disposed on the fixed substrate so as to face the rotor; an adjusting unit for adjusting sliding properties of the rotating shaft, the adjusting unit being provided for at least one of the plates; and a gear train coupled to the rotating shaft. The gear train transmits motive power generated by the rotor rotated by electric power of the electronic device to the electronic device or transmits motive power generated by a change in orientation of the electronic device to the rotor.
    Type: Application
    Filed: December 21, 2019
    Publication date: July 2, 2020
    Inventors: Yasuo Kitajima, Kenji Shimoda, Shinnosuke Sakata, Daisuke Tokunaga
  • Publication number: 20200142305
    Abstract: A coloring photosensitive composition includes an oxime ester-based photopolymerization initiator containing a fluorine atom, a polymerizable compound having an ethylenically unsaturated double bond, an alkali-soluble resin, and a colorant, in which in a case where a film having a film thickness after drying of 2.0 ?m is formed using the coloring photosensitive composition, the optical density of the film at a wavelength of 365 nm is 1.5 or more.
    Type: Application
    Filed: January 8, 2020
    Publication date: May 7, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Kazutaka TAKAHASHI, Daisuke HAMADA, Shunsuke KITAJIMA, Hirokazu KYOTA, Kaoru AOYAGI, Mitsuji YOSHIBAYASHI
  • Patent number: 10620535
    Abstract: A coloring photosensitive composition includes an oxime ester-based photopolymerization initiator containing a fluorine atom, a polymerizable compound having an ethylenically unsaturated double bond, an alkali-soluble resin, and a colorant, in which in a case where a film having a film thickness after drying of 2.0 ?m is formed using the coloring photosensitive composition, the optical density of the film at a wavelength of 365 nm is 1.5 or more.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: April 14, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Kazutaka Takahashi, Daisuke Hamada, Shunsuke Kitajima, Hirokazu Kyota, Kaoru Aoyagi, Mitsuji Yoshibayashi
  • Patent number: 10590897
    Abstract: Provided is a high-pressure fuel supply pump capable of fixing a cylinder to a pump body with excellent sealability in a simple structure even at a high fuel pressure. A high-pressure fuel supply pump including a pump body in which a pressurizing chamber is formed, and a cylinder inserted into a hole formed in the pump body and formed in a cylindrical shape, the high-pressure fuel supply pump including: a protrusion disposed at an end portion of the pump body opposite to the pressurizing chamber, formed from an outer peripheral side to an inner peripheral side with respect to an inner peripheral surface opposite to an outer peripheral surface of the cylinder, and protruding toward the cylinder, wherein the protrusion is formed so as to protrude to a side opposite to the pressurizing chamber with respect to a flat portion of the end portion of the pump body, and the protrusion is formed so as to support the cylinder from a side opposite to the pressurizing chamber.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: March 17, 2020
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Daisuke Kitajima, Kenichi Gunji, Shinichirou Enomoto, Masayuki Kobayashi, Masamichi Yagai, Masahiro Moritaka
  • Publication number: 20190346762
    Abstract: A curable composition includes: a near infrared absorbing colorant; a polymerizable compound; and a photopolymerization initiator, in which the near infrared absorbing colorant is a compound that includes a ?-conjugated plane having a monocyclic or fused aromatic ring, and the photopolymerization initiator does not substantially include a compound having an oxime structure.
    Type: Application
    Filed: July 29, 2019
    Publication date: November 14, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Shunsuke KITAJIMA, Daisuke SASAKI
  • Publication number: 20180351419
    Abstract: The moldability of the stator of an axial gap type rotating electric machine improved. The axial gap type rotating electric machine has: a stator comprising core members disposed about a rotating shaft in a ring shape with a predetermined space from adjacent core members, said core members each having a core around which a coil is wound, the number of the turns of the coil being less on the outer perimeter side than on the inner perimeter side, the core members being molded with mold material; and a rotor facing an end surface of the core in the shaft direction through a predetermined gap. The core members comprise: a first core member in which the number of coil winding layers on one side in the shaft direction is larger than the number of winding layers on the other side; and a second core member in which the number of coil winding layers on one side in the shaft direction is less than the number of winding layers on the other side.
    Type: Application
    Filed: March 4, 2015
    Publication date: December 6, 2018
    Inventors: Toru SAKAI, Tomonori KAWAGOE, Daisuke KITAJIMA, Katsuyuki YAMAZAKI, Toshifumi SUZUKI, Shuuichi TAKAHASHI, Hirooki TOKOI
  • Publication number: 20180313313
    Abstract: Provided is a high-pressure fuel supply pump capable of fixing a cylinder to a pump body with excellent sealability in a simple structure even at a high fuel pressure. A high-pressure fuel supply pump including a pump body in which a pressurizing chamber is formed, and a cylinder inserted into a hole formed in the pump body and formed in a cylindrical shape, the high-pressure fuel supply pump including: a protrusion disposed at an end portion of the pump body opposite to the pressurizing chamber, formed from an outer peripheral side to an inner peripheral side with respect to an inner peripheral surface opposite to an outer peripheral surface of the cylinder, and protruding toward the cylinder, wherein the protrusion is formed so as to protrude to a side opposite to the pressurizing chamber with respect to a flat portion of the end portion of the pump body, and the protrusion is formed so as to support the cylinder from a side opposite to the pressurizing chamber.
    Type: Application
    Filed: October 5, 2016
    Publication date: November 1, 2018
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Daisuke KITAJIMA, Kenichi GUNJI, Shinichirou ENOMOTO, Masayuki KOBAYASHI, Masamichi YAGAI, Masahiro MORITAKA
  • Publication number: 20180135579
    Abstract: Responsiveness of an electromagnetic flow-rate control valve provided for closing a suction valve is improved and a discharge flow rate is controlled to a desired value. A flow-rate control valve includes a fixed core arranged on an inner circumferential side of a coil, a yoke arranged on an outer circumferential side of the coil, and a cover portion opposed to the coil in an axial direction, in which the fixed core has an enlarged portion in contact with the cover portion in the axial direction and enlarging toward the coil, and the cover portion is regulated in the axial direction only by a contact portion with the fixed core.
    Type: Application
    Filed: June 3, 2016
    Publication date: May 17, 2018
    Inventors: Ryo KUSAKABE, Kenichiro TOKUO, Satoshi USUI, Minoru HASHIDA, Masayuki SUGANAMI, Atsushi HOHKITA, Eiichi KUBOTA, Daisuke KITAJIMA, Hiroshi HORIE
  • Publication number: 20170163112
    Abstract: The present invention provides an axial air-gap rotary electric machine that is provided with: a stator in which a plurality of core members, which have an iron core, a coil that is wound around the outer periphery of the iron core, and a bobbin that is disposed between the iron core and the coil, are arranged in a circular shape centred around a rotational axis; and at least one rotor that faces an end surface of the iron core with a prescribed air gap therebetween in the radial direction of the rotational axis.
    Type: Application
    Filed: April 23, 2014
    Publication date: June 8, 2017
    Inventors: Hirooki TOKOI, Daisuke KITAJIMA, Tomonori KAWAGOE, Katsuyuki YAMAZAKI, Toru SAKAI, Shuuichi TAKAHASHI, Toshifumi SUZUKI, Norihisa IWASAKI, Ryousou MASAKI, Yuji ENOMOTO
  • Publication number: 20170130428
    Abstract: A shovel includes a lower traveling body, an upper rotating body, an attachment including a boom and an arm, a controller, an engine, and a hydraulic pump that is driven by the engine and discharges hydraulic oil to drive the attachment. The controller is configured to obtain a hydraulic load applied to the attachment and calculate an engine speed command at predetermined time intervals based on the obtained hydraulic load.
    Type: Application
    Filed: January 19, 2017
    Publication date: May 11, 2017
    Inventors: Eisuke MATSUZAKI, Daisuke KITAJIMA
  • Publication number: 20170093244
    Abstract: Using a single bobbin, this invention makes the respective turn counts of windings in an axial-air-gap rotating electric machine the same and minimizes the lengths of connecting wires between continuous windings regardless of the continuous turn count, the direction in which each winding is wound, and whether the number of stages is odd or even. The aforementioned bobbin, which has a tubular shape that substantially matches the exterior shape of a core, is provided with flanges that extend outwards from near the respective openings in the bobbin. One of said flanges has two first notches, and the other flange has at least one second notch. The axial positions of the starting ends and finishing ends of coils on adjacent stator cores are the same, and the flanges containing the notches through which the ends of said coils are run are on the same side with respect to the abovementioned openings.
    Type: Application
    Filed: April 14, 2014
    Publication date: March 30, 2017
    Inventors: Hirooki TOKOI, Daisuke KITAJIMA, Tomonori KAWAGOE, Katsuyuki YAMAZAKI, Toru SAKAI, Shuuichi TAKAHASHI, Toshifumi SUZUKI, Norihisa IWASAKI, Ryousou MASAKI, Yuji ENOMOTO
  • Patent number: 8366421
    Abstract: A fluid pressure pulsation damper mechanism includes: a metal damper having two metal diaphragms joined together with a hermetic seal for forming a sealed spacing filled with a gas between the two metal diaphragms, an edge part overlapping along outer peripheries thereof, a main body having a damper housing in which the metal damper is accommodated, and a cover attached to the main body to cover the damper housing and isolate the damper housing from outside air.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: February 5, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Akihiro Munakata, Hideki Machimura, Hideaki Yamauchi, Daisuke Kitajima, Masashi Nemoto
  • Publication number: 20080289713
    Abstract: A fluid pressure pulsation damper mechanism comprising: a metal damper having two metal diaphragms joined together with a hermetic seal for forming a sealed spacing filled with a gas between the two metal diaphragms, an edge part at which are overlapped along outer peripheries thereof; a main body having a damper housing in which the metal damper is accommodated; and a cover attached to the main body to cover the damper housing and isolate the damper housing from an outside air, the metal damper being held between the cover and the main body; wherein the cover is further comprising: a metal plate for making the cover, a peripheral edge of the cover being joined to the main body, a plurality of inner convex curved parts extending toward the main body and a plurality of outer convex curved parts extending in a direction away from the main body, and a plurality of the inner convex curved parts and a plurality of the outer convex parts being disposed alternately inside the peripheral edge of the cover at which th
    Type: Application
    Filed: May 20, 2008
    Publication date: November 27, 2008
    Applicant: Hitachi, Ltd.
    Inventors: Akihiro Munakata, Hideki Machimura, Hideaki Yamauchi, Daisuke Kitajima, Masashi Nemoto