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).

  • Patent number: 10354693
    Abstract: 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: Grant
    Filed: August 28, 2015
    Date of Patent: July 16, 2019
    Assignee: YAHOO JAPAN CORPORATION
    Inventors: Ai Matsubara, Kenichi Kuromusha, Yoshihito Nishikawa, Yoshio Ikai, Kazutaka Kimura, Kanta Suzuki
  • Publication number: 20180268437
    Abstract: 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: Application
    Filed: February 6, 2018
    Publication date: September 20, 2018
    Applicant: YAHOO JAPAN CORPORATION
    Inventor: Yoshihito NISHIKAWA
  • Patent number: 9705460
    Abstract: 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: Grant
    Filed: September 3, 2015
    Date of Patent: July 11, 2017
    Assignee: YAHOO JAPAN CORPORATION
    Inventors: Kenichi Kuromusha, Yoshihito Nishikawa, Yoshio Ikai, Toru Takei, Kazutaka Kimura, Kanta Suzuki
  • Publication number: 20160072466
    Abstract: 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: Application
    Filed: September 3, 2015
    Publication date: March 10, 2016
    Inventors: Kenichi KUROMUSHA, Yoshihito NISHIKAWA, Yoshio IKAI, Toru TAKEI, Kazutaka KIMURA, Kanta SUZUKI
  • Publication number: 20160065888
    Abstract: 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: Application
    Filed: August 28, 2015
    Publication date: March 3, 2016
    Inventors: Ai MATSUBARA, Kenichi KUROMUSHA, Yoshihito NISHIKAWA, Yoshio IKAI, Kazutaka KIMURA, Kanta SUZUKI
  • Patent number: 7732965
    Abstract: 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: Grant
    Filed: April 23, 2008
    Date of Patent: June 8, 2010
    Assignee: ASMO Co., Ltd.
    Inventors: Takahiro Nakayama, Hirotaka Itoh, Yoshiyuki Takabe, Keisuke Koide, Yoshihito Nishikawa
  • Patent number: 7705504
    Abstract: 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: Grant
    Filed: November 7, 2006
    Date of Patent: April 27, 2010
    Assignee: ASMO Co., Ltd.
    Inventors: Takahiro Nakayama, Yoshiyuki Takabe, Keisuke Koide, Yoshihito Nishikawa
  • Patent number: 7462971
    Abstract: 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: Grant
    Filed: March 7, 2006
    Date of Patent: December 9, 2008
    Assignee: ASMO Co., Ltd.
    Inventors: Keisuke Koide, Takahiro Nakayama, Yoshiyuki Takabe, Shinichi Naitou, Yoshihito Nishikawa, Makoto Morisaki
  • Publication number: 20080265706
    Abstract: 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: Application
    Filed: April 23, 2008
    Publication date: October 30, 2008
    Applicant: Asmo Co. Ltd
    Inventors: Takahiro Nakayama, Hirotaka Itoh, Yoshiyuki Takabe, Keisuke Koide, Yoshihito Nishikawa
  • Publication number: 20070103024
    Abstract: 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: Application
    Filed: November 7, 2006
    Publication date: May 10, 2007
    Applicant: ASMO Co., Ltd.
    Inventors: Takahiro NAKAYAMA, Yoshiyuki TAKABE, Keisuke KOIDE, Yoshihito NISHIKAWA
  • Publication number: 20070080597
    Abstract: 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: Application
    Filed: October 3, 2006
    Publication date: April 12, 2007
    Applicant: ASMO CO., LTD.
    Inventors: Mikitsugu Suzuki, Yoshihito Nishikawa
  • Publication number: 20060238058
    Abstract: 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: Application
    Filed: March 7, 2006
    Publication date: October 26, 2006
    Applicant: ASMO Co., Ltd.
    Inventors: Keisuke Koide, Takahiro Nakayama, Yoshiyuki Takabe, Shinichi Naitou, Yoshihito Nishikawa, Makoto Morisaki
  • Patent number: 6822364
    Abstract: 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: Grant
    Filed: June 5, 2003
    Date of Patent: November 23, 2004
    Assignee: ASMO Co., Ltd.
    Inventors: Hiroyuki Suzuki, Kazushi Sugishima, Yoshihito Nishikawa, Mitsuhiko Matsushita
  • Publication number: 20040021393
    Abstract: 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: Application
    Filed: June 5, 2003
    Publication date: February 5, 2004
    Inventors: Hiroyuki Suzuki, Kazushi Sugishima, Yoshihito Nishikawa, Mitsuhiko Matsushita
  • Patent number: 6252323
    Abstract: 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: Grant
    Filed: March 29, 2000
    Date of Patent: June 26, 2001
    Assignee: Asmo Co., Ltd.
    Inventors: Yoshihito Nishikawa, Mikitsugu Suzuki, Takanori Ozawa, Mitsuhiko Matsushita
  • Patent number: 6236133
    Abstract: 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: Grant
    Filed: March 24, 2000
    Date of Patent: May 22, 2001
    Assignee: Denso Corporation
    Inventors: Yoshihito Nishikawa, Mitsuhiko Matsushita