Patents by Inventor Yoshihito Nishikawa
Yoshihito Nishikawa 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: 10354693Abstract: An information processing apparatus includes a determination unit configured to determine a playback mode of sound included in content. The information processing apparatus includes a playback unit configured to play back the sound included in the content in the playback mode determined by the determination unit, at playback of the content.Type: GrantFiled: August 28, 2015Date of Patent: July 16, 2019Assignee: YAHOO JAPAN CORPORATIONInventors: Ai Matsubara, Kenichi Kuromusha, Yoshihito Nishikawa, Yoshio Ikai, Kazutaka Kimura, Kanta Suzuki
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Publication number: 20180268437Abstract: A calculation apparatus includes an accepting unit that accepts, from a set-up person, a budget amount that is a maximum amount of compensation for distribution of information. The calculation apparatus includes a calculating unit that calculates, in accordance with the budget amount, the number of users who become the distribution destination of the information.Type: ApplicationFiled: February 6, 2018Publication date: September 20, 2018Applicant: YAHOO JAPAN CORPORATIONInventor: Yoshihito NISHIKAWA
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Patent number: 9705460Abstract: An information processing apparatus includes a learning unit which learns sound level manipulation relating to a sound level of a terminal device used by a user based on information relating to the user. The information processing apparatus includes a determination unit which determines a reproduction mode at the time when the terminal device reproduces an audio contained in a content according to a learning result of the learning unit. The information processing apparatus includes a controller which controls an audio contained in the content in the reproduction mode determined by the determination unit.Type: GrantFiled: September 3, 2015Date of Patent: July 11, 2017Assignee: YAHOO JAPAN CORPORATIONInventors: Kenichi Kuromusha, Yoshihito Nishikawa, Yoshio Ikai, Toru Takei, Kazutaka Kimura, Kanta Suzuki
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Publication number: 20160072466Abstract: An information processing apparatus includes a learning unit which learns sound level manipulation relating to a sound level of a terminal device used by a user based on information relating to the user. The information processing apparatus includes a determination unit which determines a reproduction mode at the time when the terminal device reproduces an audio contained in a content according to a learning result of the learning unit. The information processing apparatus includes a controller which controls an audio contained in the content in the reproduction mode determined by the determination unit.Type: ApplicationFiled: September 3, 2015Publication date: March 10, 2016Inventors: Kenichi KUROMUSHA, Yoshihito NISHIKAWA, Yoshio IKAI, Toru TAKEI, Kazutaka KIMURA, Kanta SUZUKI
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Publication number: 20160065888Abstract: An information processing apparatus includes a determination unit configured to determine a playback mode of sound included in content. The information processing apparatus includes a playback unit configured to play back the sound included in the content in the playback mode determined by the determination unit, at playback of the content.Type: ApplicationFiled: August 28, 2015Publication date: March 3, 2016Inventors: Ai MATSUBARA, Kenichi KUROMUSHA, Yoshihito NISHIKAWA, Yoshio IKAI, Kazutaka KIMURA, Kanta SUZUKI
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Patent number: 7732965Abstract: An embedded magnet type motor is disclosed. The rotor core of the motor has radially extending first accommodation holes and V-shaped accommodation holes. Each V-shaped accommodation hole includes a second accommodation hole and a third accommodation hole. A first gap is formed in each first accommodation hole. The first gap is not occupied by the corresponding first magnet. A second gap is formed in each second accommodation hole. The second gap is not occupied by the corresponding second magnet. A third gap is formed in each third accommodation hole at a radially outer portion. The third gap is not occupied by the corresponding third magnet. Each second gap and the adjacent third gap form one V-shaped gap. The angular width ?a of each first gap and the angular width ?b of each V-shaped gap are determined to satisfy the expression: 0.60<?a/?b<1.60.Type: GrantFiled: April 23, 2008Date of Patent: June 8, 2010Assignee: ASMO Co., Ltd.Inventors: Takahiro Nakayama, Hirotaka Itoh, Yoshiyuki Takabe, Keisuke Koide, Yoshihito Nishikawa
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Patent number: 7705504Abstract: A rotor of an embedded magnet type motor has a plurality of magnets forming magnetic poles, the number of which is represented by P. A rotor core includes first accommodation holes, the number of which is represented by P/2, extending in a radial direction, and V-shaped accommodation holes, the number of which is represented by P/2, having a V shape protruding outward in a radial direction. The first accommodation holes and the V-shaped accommodation holes are alternately arranged in a circumferential direction. The V-shaped accommodation holes include a second accommodation hole and a third accommodation hole corresponding to two straight lines forming the V shape. The first accommodation hole is adjacent to the second accommodation hole at one side in the circumferential direction, and is adjacent to the third accommodation hole at the other side.Type: GrantFiled: November 7, 2006Date of Patent: April 27, 2010Assignee: ASMO Co., Ltd.Inventors: Takahiro Nakayama, Yoshiyuki Takabe, Keisuke Koide, Yoshihito Nishikawa
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Patent number: 7462971Abstract: A first armature winding and a second armature winding each include a tubular member, a first conductor arranged in a radially inner side of the tubular member, and a second conductor arranged in a radially outer side of the tubular member. The first conductor includes a first coated portion, which is coated by a coating formed from an insulator, and a first wire connection portion, which is free from the insulator. The second conductor includes a second coated portion, which is coated by a coating formed from an insulator, and a second wire connection portion, which is free from the insulator. The first wire connection portion and the second wire connection portion are electrically connected to each other. A large output is obtained from a slotless motor including the first armature winding and the second armature winding.Type: GrantFiled: March 7, 2006Date of Patent: December 9, 2008Assignee: ASMO Co., Ltd.Inventors: Keisuke Koide, Takahiro Nakayama, Yoshiyuki Takabe, Shinichi Naitou, Yoshihito Nishikawa, Makoto Morisaki
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Publication number: 20080265706Abstract: An embedded magnet type motor is disclosed. The rotor core of the motor has radially extending first accommodation holes and V-shaped accommodation holes. Each V-shaped accommodation hole includes a second accommodation hole and a third accommodation hole. A first gap is formed in each first accommodation hole. The first gap is not occupied by the corresponding first magnet. A second gap is formed in each second accommodation hole. The second gap is not occupied by the corresponding second magnet. A third gap is formed in each third accommodation hole at a radially outer portion. The third gap is not occupied by the corresponding third magnet. Each second gap and the adjacent third gap form one V-shaped gap. The angular width ?a of each first gap and the angular width ?b of each V-shaped gap are determined to satisfy the expression: 0.60<?a/?b<1.60.Type: ApplicationFiled: April 23, 2008Publication date: October 30, 2008Applicant: Asmo Co. LtdInventors: Takahiro Nakayama, Hirotaka Itoh, Yoshiyuki Takabe, Keisuke Koide, Yoshihito Nishikawa
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Publication number: 20070103024Abstract: A rotor of an embedded magnet type motor has a plurality of magnets forming magnetic poles, the number of which is represented by P. A rotor core includes first accommodation holes, the number of which is represented by P/2, extending in a radial direction, and V-shaped accommodation holes, the number of which is represented by P/2, having a V shape protruding outward in a radial direction. The first accommodation holes and the V-shaped accommodation holes are alternately arranged in a circumferential direction. The V-shaped accommodation holes include a second accommodation hole and a third accommodation hole corresponding to two straight lines forming the V shape. The first accommodation hole is adjacent to the second accommodation hole at one side in the circumferential direction, and is adjacent to the third accommodation hole at the other side.Type: ApplicationFiled: November 7, 2006Publication date: May 10, 2007Applicant: ASMO Co., Ltd.Inventors: Takahiro NAKAYAMA, Yoshiyuki TAKABE, Keisuke KOIDE, Yoshihito NISHIKAWA
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Publication number: 20070080597Abstract: A motor includes an annular magnet and an annular core. The annular core is placed radially inward of the annular magnet and includes a plurality of annular core segments. At least one of axially opposed surfaces of one or more annular core segments includes an annular recess, which is configured according to an inertia of an annular core and is coaxial with an outer peripheral edge of the annular core segment. A shaft extends through a through hole of the annular core and is fixed to the annular core.Type: ApplicationFiled: October 3, 2006Publication date: April 12, 2007Applicant: ASMO CO., LTD.Inventors: Mikitsugu Suzuki, Yoshihito Nishikawa
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Publication number: 20060238058Abstract: A first armature winding and a second armature winding each include a tubular member, a first conductor arranged in a radially inner side of the tubular member, and a second conductor arranged in a radially outer side of the tubular member. The first conductor includes a first coated portion, which is coated by a coating formed from an insulator, and a first wire connection portion, which is free from the insulator. The second conductor includes a second coated portion, which is coated by a coating formed from an insulator, and a second wire connection portion, which is free from the insulator. The first wire connection portion and the second wire connection portion are electrically connected to each other. A large output is obtained from a slotless motor including the first armature winding and the second armature winding.Type: ApplicationFiled: March 7, 2006Publication date: October 26, 2006Applicant: ASMO Co., Ltd.Inventors: Keisuke Koide, Takahiro Nakayama, Yoshiyuki Takabe, Shinichi Naitou, Yoshihito Nishikawa, Makoto Morisaki
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Patent number: 6822364Abstract: A brushless motor includes a motor housing, a stator, a positioning projection, and a groove. The stator is fitted in the motor housing and includes an outer core and teeth, which extend in the radial direction of the stator. A radially outward end of each tooth is coupled with the outer core. Each tooth has a predetermined width in the circumferential direction of the stator. The positioning projection is located on the inner circumferential surface of the motor housing. The groove is located on the outer circumferential surface of the outer core. The groove is arranged on a radial line that passes through the center of the width direction of one of the teeth. The positioning projection is fitted in the groove to determine the position of the stator with respect to the motor housing in the circumferential direction.Type: GrantFiled: June 5, 2003Date of Patent: November 23, 2004Assignee: ASMO Co., Ltd.Inventors: Hiroyuki Suzuki, Kazushi Sugishima, Yoshihito Nishikawa, Mitsuhiko Matsushita
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Publication number: 20040021393Abstract: A brushless motor includes a motor housing, a stator, a positioning projection, and a groove. The stator is fitted in the motor housing and includes an outer core and teeth, which extend in the radial direction of the stator. A radially outward end of each tooth is coupled with the outer core. Each tooth has a predetermined width in the circumferential direction of the stator. The positioning projection is located on the inner circumferential surface of the motor housing. The groove is located on the outer circumferential surface of the outer core. The groove is arranged on a radial line that passes through the center of the width direction of one of the teeth. The positioning projection is fitted in the groove to determine the position of the stator with respect to the motor housing in the circumferential direction.Type: ApplicationFiled: June 5, 2003Publication date: February 5, 2004Inventors: Hiroyuki Suzuki, Kazushi Sugishima, Yoshihito Nishikawa, Mitsuhiko Matsushita
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Patent number: 6252323Abstract: A revolving magnetic field type motor has a rotor and a stator. The rotor has a plurality of permanent magnets. The permanent magnets defines a plurality of rotor magnetic poles. The number of the rotor magnetic poles is “P”. The rotor has a plurality of blocks aligned in the rotor's axial direction. The number of the blocks is “m”. Each block has a set of the rotor permanent magnets. One set of the permanent magnets is offset relative to an adjacent set of the permanent magnets by a predetermined offset angle in the rotor's rotational direction. The stator has a plurality of coils, the coils defining a plurality of stator magnetic poles around the axis of the stator, the number of the stator magnetic poles being “T”. The predetermined offset angle is selected from within a range from about zero degrees/((m−1)×n) to about 22.5 degrees/((m−1)×n).Type: GrantFiled: March 29, 2000Date of Patent: June 26, 2001Assignee: Asmo Co., Ltd.Inventors: Yoshihito Nishikawa, Mikitsugu Suzuki, Takanori Ozawa, Mitsuhiko Matsushita
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Patent number: 6236133Abstract: A brushless motor is composed of a stator for generating a rotating magnetic field by supplying three-phase alternating current consisting of U, V and W-phases thereto and a rotor having plural poles and rotatably disposed inside the stator. The rotor is rotated by the rotating magnetic field generated in the stator. The stator includes core teeth on which coils are wound. A tooth-group consisting of a center tooth and two side teeth is allocated to each phase, and excitation current in one phase is simultaneously supplied to three coils wound on the three teeth in the same tooth-group. The center teeth of each phase are positioned with equal intervals therebetween, while the side teeth are positioned so that they substantially coincide with the centers of the rotor poles when a center tooth in the same tooth-group coincides with the center of one of the rotor poles.Type: GrantFiled: March 24, 2000Date of Patent: May 22, 2001Assignee: Denso CorporationInventors: Yoshihito Nishikawa, Mitsuhiko Matsushita