Patents by Inventor Takashi Umeda

Takashi Umeda 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: 10210237
    Abstract: To reduce time and labor in identifying a similar category among a plurality of categories into which objects are classified. Based on a predetermined operation performed by a user with respect to two objects among a plurality of objects classified into some of a plurality of predetermined categories, the information processing system deduces the two objects as comparison targets. Then, based on the number of times at which the two objects are deduced as comparison targets, the information processing system determines two categories into which the two objects are respectively classified as similar categories.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: February 19, 2019
    Assignee: Rakuten, Inc.
    Inventor: Takashi Umeda
  • Patent number: 10134073
    Abstract: Users are enabled to select a category with more ease than in the past. An information processing device estimates, for a target category that is one of a plurality of categories which have a tree structure including a plurality of hierarchy levels and to each of which one or more objects belong, whether a user is knowledgeable about categories below the target category, based on an input from the user, and controls whether or not display means displays the categories below the target category, based on whether or not the user is estimated as being knowledgeable about the categories below the target category.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: November 20, 2018
    Assignee: Rakuten, Inc.
    Inventor: Takashi Umeda
  • Patent number: 10128700
    Abstract: A core segment linked body is configured by linking a plurality of core segments by inserting first shafts of first core segments into first slots of core segments near a first longitudinal end thereof, and inserting second shafts of core segments near the first longitudinal end thereof into second slots of the first core segments, the linked core segments are expandable and contractible between an expanded position in which an interval between the magnetic pole tooth is expanded and a contracted position in which the interval is reduced by the first shafts being guided by the first slots and the second shafts being guided by the second slots, and central axes of the first shafts and the second shafts are: offset in a longitudinal direction of the back yoke in the expanded position; and positioned collinearly in a direction of lamination in the contracted position.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: November 13, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takashi Umeda, Akira Hashimoto, Katsunori Oki
  • Patent number: 10097058
    Abstract: In a rotary electric machine, an armature core includes a plurality of magnetic pole teeth and slots are formed between the magnetic pole teeth. An armature coil group includes a plurality of armature coils each including a pair of coil sides arranged in the slots, which are different from one another, and coil ends connecting the pair of coil sides. The armature coil group includes, as the armature coils, a plurality of base coils, of which one coil side is arranged in an upper opening of the slot and the other coil side is arranged in a lower opening of the slot, upper layer coils, of which both one coil side and the other coil side are arranged in an upper opening of the slot, and lower layer coils, of which both one coil side and the other coil side are arranged in the lower opening of the slot.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: October 9, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takashi Umeda, Akira Hashimoto
  • Publication number: 20180287443
    Abstract: A rotor in a rotating electric machine including a rotor main body and at least one magnet unit provided at an outer circumferential part of the rotor main body. The magnet unit has a plurality of magnet teeth as segments in the circumferential direction. The plurality of magnet teeth that form one magnet unit are arranged in a circular arc shape. At least one pair of magnet teeth in one magnet unit is each provided with a notch. With the plurality of magnet teeth being arranged in the circular arc shape, a fixation block is press-fitted in the pair of notches. The fixation block is fastened to the rotor main body while being inserted in the notches.
    Type: Application
    Filed: November 27, 2015
    Publication date: October 4, 2018
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takashi UMEDA, Hiroki KITANI, Junka OKAMOTO
  • Publication number: 20180212484
    Abstract: A first magnet group provided to a first core member and a second magnet group provided to a second core member are adjacent to each other in an axial direction of a rotor. The first magnet group includes a plurality of first magnets arrayed in a circumferential direction of the rotor. The second magnet group includes a plurality of second magnets arrayed in the circumferential direction. The first magnet and the second magnet, which are adjacent to each other and have the same polarity, are shifted from each other by a certain angle in the circumferential direction. One of the first core member and the second core member has a first recessed portion, and another of the first core member and the second core member has a first protruding portion to be engaged with the first recessed portion in the circumferential direction.
    Type: Application
    Filed: July 31, 2015
    Publication date: July 26, 2018
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takashi UMEDA, Hiroki KITANI
  • Patent number: 9960644
    Abstract: In a core for a rotary electric machine, first end portions of back yoke portions are linked to second end portions of back yoke portions of adjacent core segments so as to be rotatable around pivot portions. Each of the core segments is configured by alternately laminating first core segment sheets and second core segment sheets. The pivot portions are constituted by interfitting protruding portions that are formed on the first core segment sheets. The core segments are displaceable relative to the adjacent core segments between a contracted position in which spacing between the magnetic pole tooth portions is contracted and an expanded position in which spacing between the magnetic pole tooth portions is expanded, when the core segment linked body is opened out rectilinearly.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: May 1, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Akira Hashimoto, Atsushi Sakaue, Hironori Tsuiki, Yuji Nakahara, Takashi Umeda, Katsunori Oki, Ryuichi Takiguchi, Takanori Komatsu
  • Publication number: 20180076674
    Abstract: This invention, is concerning a rotary electrical machine, wherein, where Q is the number of a plurality of slots, P is the number of a plurality of magnets, gcd(Q, P) is the greatest common divisor of Q and P, m is the number of phases, and one position group is defined as a set of m positions spaced from each other along the circumferential direction of the armature core by a pitch of an angle of [360/{gcd(Q, p)×m}]°, an armature core is: formed by connection of a plurality of core pieces at connection positions that are set to positions included in one or more respective position groups from among gcd(Q, P) position groups formed at equal pitch along the circumferential direction of the armature core.
    Type: Application
    Filed: May 19, 2015
    Publication date: March 15, 2018
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takashi UMEDA, Yasuki KIMURA, Akira HASHIMOTO
  • Publication number: 20180026502
    Abstract: A rotating electric machine includes: a stator having an armature core having slots formed between magnetic pole teeth, and a plurality of coils each of which is wound so as to straddle a plurality of the magnetic pole teeth; and a rotor including a plurality of permanent magnets disposed at certain intervals on an outer peripheral surface of the magnetic yoke, and the coils include an armature coil for driving the rotating electric machine and a non-armature coil for magnetizing or demagnetizing the permanent magnets of the rotor.
    Type: Application
    Filed: January 18, 2016
    Publication date: January 25, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Sachiko KAWASAKI, Hironori TSUIKI, Akira HASHIMOTO, Takashi UMEDA
  • Publication number: 20170126075
    Abstract: A core segment linked body is configured by linking a plurality of core segments by inserting first shafts of first core segments into first slots of core segments near a first longitudinal end thereof, and inserting second shafts of core segments near the first longitudinal end thereof into second slots of the first core segments, the linked core segments are expandable and contractible between an expanded position in which an interval between the magnetic pole tooth is expanded and a contracted position in which the interval is reduced by the first shafts being guided by the first slots and the second shafts being guided by the second slots, and central axes of the first shafts and the second shafts are: offset in a longitudinal direction of the back yoke in the expanded position; and positioned collinearly in a direction of lamination in the contracted position.
    Type: Application
    Filed: April 16, 2014
    Publication date: May 4, 2017
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takashi UMEDA, Akira HASHIMOTO, Katsunori OKI
  • Publication number: 20170077768
    Abstract: In a core for a rotary electric machine, first end portions of back yoke portions are linked to second end portions of back yoke portions of adjacent core segments so as to be rotatable around pivot portions. Each of the core segments is configured by alternately laminating first core segment sheets and second core segment sheets. The pivot portions are constituted by interfitting protruding portions that are formed on the first core segment sheets. The core segments are displaceable relative to the adjacent core segments between a contracted position in which spacing between the magnetic pole tooth portions is contracted and an expanded position in which spacing between the magnetic pole tooth portions is expanded, when the core segment linked body is opened out rectilinearly.
    Type: Application
    Filed: May 28, 2013
    Publication date: March 16, 2017
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Akira HASHIMOTO, Atsushi SAKAUE, Hironori TSUIKI, Yuji NAKAHARA, Takashi UMEDA, Katsunori OKI, Ryuichi TAKIGUCHI, Takanori KOMATSU
  • Publication number: 20160343525
    Abstract: A electronic apparatus includes a switching circuit including first and second circuits and a controller that controls the switching circuit. The first and second circuits process signals of first and second sensor elements, respectively. The controller switches between the first and second circuits of the switching circuit. The electronic apparatus can have a small size.
    Type: Application
    Filed: February 2, 2015
    Publication date: November 24, 2016
    Inventors: TAKASHI UMEDA, TAKESHI UEMURA, HIDEAKI FUJIURA
  • Publication number: 20160329767
    Abstract: In a rotary electric machine, an armature core includes a plurality of magnetic pole teeth and slots are formed between the magnetic pole teeth. An armature coil group includes a plurality of armature coils each including a pair of coil sides arranged in the slots, which are different from one another, and coil ends connecting the pair of coil sides. The armature coil group includes, as the armature coils, a plurality of base coils, of which one coil side is arranged in an upper opening of the slot and the other coil side is arranged in a lower opening of the slot, upper layer coils, of which both one coil side and the other coil side are arranged in an upper opening of the slot, and lower layer coils, of which both one coil side and the other coil side are arranged in the lower opening of the slot.
    Type: Application
    Filed: February 14, 2014
    Publication date: November 10, 2016
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takashi UMEDA, Akira HASHIMOTO
  • Patent number: 9344016
    Abstract: A storage module voltage equalizer includes a plurality of voltage equalization circuits that are prepared to correspond to a plurality of storage cells which are arranged to be lined up in a first direction, and equalize an inter-terminal voltage of the plurality of storage cells, and a plurality of mounting substrates that are stacked, in which the plurality of voltage equalization circuits are mounted, in a distributed manner, on the plurality of mounting substrates.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: May 17, 2016
    Assignees: Sumitomo Heavy Industries, Ltd., Sumitomo (S.H.I.) Construction Machinery Co., Ltd.
    Inventors: Shuntaro Adachi, Jitsutaka Takeo, Takashi Umeda
  • Publication number: 20160131683
    Abstract: A magnetic sensor has a first tube-shaped bias magnet and a first magnetic sensor element. The first tube-shaped bias magnet has a bottom face, a top face facing the bottom face, and an outer side surface and an inner side surface both located between the bottom face and the top face, and includes an N pole formed by magnetizing one of the bottom face and the top face and an S pole formed by magnetizing a remaining one of the bottom face and the top face. The first magnetic sensor element is located in an inner space surrounded by a plane including the bottom face, a plane including the top face, and the inner side surface. The magnetic sensor can detect intensity of an external magnetic field with high accuracy.
    Type: Application
    Filed: January 17, 2016
    Publication date: May 12, 2016
    Inventors: KAZUHIRO ONAKA, TAKASHI UMEDA, SHIGEHIRO YOSHIUCHI, RYO OSABE
  • Patent number: 9284717
    Abstract: A swivel control apparatus for swiveling a swivel body that supports an attachment including a boom, an arm, and an end attachment by a motor, wherein a swivel drive command to the motor is changed in conformation with a posture of the attachment.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: March 15, 2016
    Assignee: SUMITOMO(S.H.I.) CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Takashi Umeda, Kiminori Sano, Ryuji Shiratani
  • Patent number: 9256647
    Abstract: An information processing apparatus allows a user to easily find information about search targets which the user is likely to desire. Pieces of information about a plurality of searched search targets displayed as a search result include attribute values of search targets. The information processing apparatus specifies information selected by the user from displayed information, and compares an attribute value of a selected search target, with attribute values of search targets associated with display rankings which are higher than a display ranking of the selected search target associated with the specified information.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: February 9, 2016
    Assignee: Rakuten, Inc.
    Inventor: Takashi Umeda
  • Publication number: 20150088862
    Abstract: To reduce time and labor in identifying a similar category among a plurality of categories into which objects are classified. Based on a predetermined operation performed by a user with respect to two objects among a plurality of objects classified into some of a plurality of predetermined categories, the information processing system deduces the two objects as comparison targets. Then, based on the number of times at which the two objects are deduced as comparison targets, the information processing system determines two categories into which the two objects are respectively classified as similar categories.
    Type: Application
    Filed: April 23, 2013
    Publication date: March 26, 2015
    Inventor: Takashi Umeda
  • Publication number: 20140351094
    Abstract: Users are enabled to select a category with more ease than in the past. An information processing device estimates, for a target category that is one of a plurality of categories which have a tree structure including a plurality of hierarchy levels and to each of which one or more objects belong, whether a user is knowledgeable about categories below the target category, based on an input from the user, and controls whether or not display means displays the categories below the target category, based on whether or not the user is estimated as being knowledgeable about the categories below the target category.
    Type: Application
    Filed: February 28, 2013
    Publication date: November 27, 2014
    Applicant: Rakuten, Inc.
    Inventor: Takashi Umeda
  • Publication number: 20140346981
    Abstract: A storage module voltage equalizer includes a plurality of voltage equalization circuits that are prepared to correspond to a plurality of storage cells which are arranged to be lined up in a first direction, and equalize an inter-terminal voltage of the plurality of storage cells, and a plurality of mounting substrates that are stacked, in which the plurality of voltage equalization circuits are mounted, in a distributed manner, on the plurality of mounting substrates.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 27, 2014
    Applicants: Sumitomo Heavy Industries, Ltd., Sumitomo (S.H.I.) Construction Machinery Co., Ltd.
    Inventors: Shuntaro ADACHI, Jitsutaka TAKEO, Takashi UMEDA