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).
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Patent number: 10210237Abstract: 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: GrantFiled: April 23, 2013Date of Patent: February 19, 2019Assignee: Rakuten, Inc.Inventor: Takashi Umeda
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Patent number: 10134073Abstract: 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: GrantFiled: February 28, 2013Date of Patent: November 20, 2018Assignee: Rakuten, Inc.Inventor: Takashi Umeda
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Patent number: 10128700Abstract: 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: GrantFiled: April 16, 2014Date of Patent: November 13, 2018Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Takashi Umeda, Akira Hashimoto, Katsunori Oki
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Patent number: 10097058Abstract: 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: GrantFiled: February 14, 2014Date of Patent: October 9, 2018Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Takashi Umeda, Akira Hashimoto
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Publication number: 20180287443Abstract: 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: ApplicationFiled: November 27, 2015Publication date: October 4, 2018Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takashi UMEDA, Hiroki KITANI, Junka OKAMOTO
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Publication number: 20180212484Abstract: 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: ApplicationFiled: July 31, 2015Publication date: July 26, 2018Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takashi UMEDA, Hiroki KITANI
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Patent number: 9960644Abstract: 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: GrantFiled: May 28, 2013Date of Patent: May 1, 2018Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Akira Hashimoto, Atsushi Sakaue, Hironori Tsuiki, Yuji Nakahara, Takashi Umeda, Katsunori Oki, Ryuichi Takiguchi, Takanori Komatsu
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Publication number: 20180076674Abstract: 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: ApplicationFiled: May 19, 2015Publication date: March 15, 2018Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takashi UMEDA, Yasuki KIMURA, Akira HASHIMOTO
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Publication number: 20180026502Abstract: 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: ApplicationFiled: January 18, 2016Publication date: January 25, 2018Applicant: Mitsubishi Electric CorporationInventors: Sachiko KAWASAKI, Hironori TSUIKI, Akira HASHIMOTO, Takashi UMEDA
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Publication number: 20170126075Abstract: 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: ApplicationFiled: April 16, 2014Publication date: May 4, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takashi UMEDA, Akira HASHIMOTO, Katsunori OKI
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Publication number: 20170077768Abstract: 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: ApplicationFiled: May 28, 2013Publication date: March 16, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Akira HASHIMOTO, Atsushi SAKAUE, Hironori TSUIKI, Yuji NAKAHARA, Takashi UMEDA, Katsunori OKI, Ryuichi TAKIGUCHI, Takanori KOMATSU
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Publication number: 20160343525Abstract: 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: ApplicationFiled: February 2, 2015Publication date: November 24, 2016Inventors: TAKASHI UMEDA, TAKESHI UEMURA, HIDEAKI FUJIURA
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Publication number: 20160329767Abstract: 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: ApplicationFiled: February 14, 2014Publication date: November 10, 2016Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takashi UMEDA, Akira HASHIMOTO
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Patent number: 9344016Abstract: 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: GrantFiled: May 20, 2014Date of Patent: May 17, 2016Assignees: Sumitomo Heavy Industries, Ltd., Sumitomo (S.H.I.) Construction Machinery Co., Ltd.Inventors: Shuntaro Adachi, Jitsutaka Takeo, Takashi Umeda
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Publication number: 20160131683Abstract: 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: ApplicationFiled: January 17, 2016Publication date: May 12, 2016Inventors: KAZUHIRO ONAKA, TAKASHI UMEDA, SHIGEHIRO YOSHIUCHI, RYO OSABE
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Patent number: 9284717Abstract: 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: GrantFiled: June 16, 2014Date of Patent: March 15, 2016Assignee: SUMITOMO(S.H.I.) CONSTRUCTION MACHINERY CO., LTD.Inventors: Takashi Umeda, Kiminori Sano, Ryuji Shiratani
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Patent number: 9256647Abstract: 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: GrantFiled: August 31, 2012Date of Patent: February 9, 2016Assignee: Rakuten, Inc.Inventor: Takashi Umeda
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Publication number: 20150088862Abstract: 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: ApplicationFiled: April 23, 2013Publication date: March 26, 2015Inventor: Takashi Umeda
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Publication number: 20140351094Abstract: 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: ApplicationFiled: February 28, 2013Publication date: November 27, 2014Applicant: Rakuten, Inc.Inventor: Takashi Umeda
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Publication number: 20140346981Abstract: 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: ApplicationFiled: May 20, 2014Publication date: November 27, 2014Applicants: Sumitomo Heavy Industries, Ltd., Sumitomo (S.H.I.) Construction Machinery Co., Ltd.Inventors: Shuntaro ADACHI, Jitsutaka TAKEO, Takashi UMEDA