Patents by Inventor Daisuke Morishita

Daisuke Morishita 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: 11951874
    Abstract: A vehicle driving system that can suppress a difference in effect of vehicle attitude control between the cases where a friction braking force is applied and not applied, is provided. The system includes a rotating electric machine, a battery, a steering apparatus, a steering angle sensor, a brake actuator that applies a friction braking force, a friction braking force sensor, and a controller that sets a deceleration torque based on a steering speed detected by the steering angle sensor and controls the rotating electric machine to apply the deceleration torque to a front wheel of the vehicle, thereby executing a vehicle attitude control. When the friction braking force is applied to the wheels by the brake actuator during the vehicle attitude control, if the friction braking force is large, the controller corrects the deceleration torque to a larger value than when the friction braking force is small.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: April 9, 2024
    Assignee: Mazda Motor Corporation
    Inventors: Daisaku Ogawa, Daisuke Umetsu, Shinya Morishita
  • Publication number: 20230075941
    Abstract: An outdoor unit includes a motor. The motor includes a rotor having a rotor core and a permanent magnet fixed to the rotor core, the permanent magnet forming a magnet magnetic pole, a part of the rotor core forming a virtual magnetic pole, and a stator surrounding the rotor. The outdoor unit further includes a frame holding the motor, a support body supporting the frame, a unit housing in which the frame and the support body are housed, and a nonmagnetic body disposed between the support body and the unit housing.
    Type: Application
    Filed: February 26, 2020
    Publication date: March 9, 2023
    Inventors: Kazuchika TSUCHIDA, Hiroki ASO, Takaya SHIMOKAWA, Ryogo TAKAHASHI, Daisuke MORISHITA
  • Publication number: 20220385140
    Abstract: A fan includes a rotor having a shaft, a rotor core having an annular shape about a center axis of the shaft, and a permanent magnet fixed to the rotor core, the permanent magnet forming a magnet magnetic pole, a part of the rotor core forming a virtual magnetic pole, a stator surrounding the rotor from outside in a radial direction about the center axis, a rotating blade fixed to the shaft and formed of a nonmagnetic material, and a frame surrounding the stator from outside in the radial direction and formed of a nonmagnetic material.
    Type: Application
    Filed: February 26, 2020
    Publication date: December 1, 2022
    Inventors: Kazuchika TSUCHIDA, Hiroki ASO, Takaya SHIMOKAWA, Ryogo TAKAHASHI, Daisuke MORISHITA
  • Patent number: 9077224
    Abstract: A rotor core according to an embodiment has a plurality of magnet openings and cavity portions. The magnet openings are in juxtaposition with each other in a circumferential direction. Permanent magnets are inserted in the magnet openings. The cavity portions are each formed relative to an area sandwiched between two magnet openings, out of the magnet openings, in which the permanent magnets that are mutually adjacent and that have magnetic pole directions relative to a radial direction opposite to each other are inserted.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: July 7, 2015
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Daisuke Morishita, Yuki Ochiai
  • Publication number: 20150162805
    Abstract: A rotor of a rotating electrical machine includes a rotor iron core, a plurality of duct members, a plurality of permanent magnets, and a plurality of through holes. The rotor iron core includes a plurality of iron core blocks. The plurality of duct members are each disposed between two adjacent iron core blocks among the plurality of iron core blocks and each include a circular duct plate including a plurality of radial duct pieces disposed in the circular duct plate. The plurality of permanent magnets are disposed in each of the plurality of iron core blocks. The plurality of through holes are disposed in the duct plate for the plurality of permanent magnets to be disposed in the plurality of through holes.
    Type: Application
    Filed: November 18, 2014
    Publication date: June 11, 2015
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Hiroshi TSUMAGARI, Daisuke MORISHITA
  • Patent number: 8987968
    Abstract: This power generator is so formed that a number q of slots per pole per phase obtained by dividing the number of slots by the number of poles of permanent magnets and the number of phases of voltages is a fraction satisfying 1<q?3/2.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: March 24, 2015
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Daisuke Morishita, Yasuhiro Miyamoto
  • Patent number: 8937418
    Abstract: A rotor core according to an embodiment includes a pair of magnet openings disposed such that a space therebetween widens toward an outer peripheral side and in which a pair of permanent magnets having a magnetic pole direction relative to a radial direction identical to each other are inserted. The magnet openings each have a shape that connects together a first opening portion formed along the profile of the corresponding permanent magnet and a second opening portion that, when the permanent magnet is inserted in the first opening portion, covers, out of corner portions of the permanent magnet, a corner portion closest to the other permanent magnet with an air gap defined therebetween. The second opening portion forms a bridge portion between the second opening portion and the second opening portion of the other magnet opening.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: January 20, 2015
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Daisuke Morishita, Yuki Ochiai
  • Patent number: 8937417
    Abstract: This rotating electric machine includes a rotor including a rotating shaft portion, a rotor yoke surrounding the rotating shaft portion and a rotor core, arranged on the outer peripheral surface of the rotor yoke, having a plurality of permanent magnets circumferentially arranged thereon at intervals, and a stator arranged to be opposed to the outer peripheral surface of the rotor, while the rotor yoke and the inner peripheral portion of the rotor core are fixed to each other with a fixing member.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: January 20, 2015
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Yasuhiro Miyamoto, Hiroshi Tsumagari, Daisuke Morishita
  • Publication number: 20140300244
    Abstract: A rotating electrical machine includes a rotor and a stator. A permanent magnet is attached to the rotor. The stator opposes the rotor with a gap provided therebetween, and has an open slot that opens toward the rotor and in which a high-voltage wire is installed. The gap has a gap length at which the sum of losses including a surface loss that occur when the high-voltage wire is excited and the rotor is rotated at a high rotation speed is less than or equal to a threshold that corresponds to a target loss.
    Type: Application
    Filed: April 7, 2014
    Publication date: October 9, 2014
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventor: Daisuke MORISHITA
  • Patent number: 8653709
    Abstract: This disclosure discloses a rotating electrical machine comprising: a stator; and a rotor; one of said stator and said rotor having a coil, the other having a plurality of magnetic pole units each forming first and second magnetic poles configured to be aligned alternately and to have mutually opposite polarities at a side of the one of said stator and said rotor, each of said magnetic pole units comprising: a unit core that a projecting part configured to protrude toward the side of the one of said stator and said rotor is formed; and a permanent magnetic provided between each of said projecting parts on the side of the one of said stator and said rotor from said unit core, said first magnetic pole being formed by said permanent magnet, and said second magnetic pole being formed by each of said projecting parts.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: February 18, 2014
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Yasuhiro Miyamoto, Hiroshi Tsumagari, Daisuke Morishita
  • Publication number: 20120187696
    Abstract: This rotating electric machine includes a rotor including a rotating shaft portion, a rotor yoke surrounding the rotating shaft portion and a rotor core, arranged on the outer peripheral surface of the rotor yoke, having a plurality of permanent magnets circumferentially arranged thereon at intervals, and a stator arranged to be opposed to the outer peripheral surface of the rotor, while the rotor yoke and the inner peripheral portion of the rotor core are fixed to each other with a fixing member.
    Type: Application
    Filed: November 16, 2011
    Publication date: July 26, 2012
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yasuhiro Miyamoto, Hiroshi Tsumagari, Daisuke Morishita
  • Publication number: 20120038168
    Abstract: This power generator is so formed that a number q of slots per pole per phase obtained by dividing the number of slots by the number of poles of permanent magnets and the number of phases of voltages is a fraction satisfying 1<q? 3/2.
    Type: Application
    Filed: June 24, 2011
    Publication date: February 16, 2012
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Daisuke MORISHITA, Yasuhiro Miyamoto
  • Publication number: 20120025534
    Abstract: This disclosure discloses a rotating electrical machine comprising: a stator; and a rotor; one of said stator and said rotor having a coil, the other having a plurality of magnetic pole units each forming first and second magnetic poles configured to be aligned alternately and to have mutually opposite polarities at a side of the one of said stator and said rotor, each of said magnetic pole units comprising: a unit core that a projecting part configured to protrude toward the side of the one of said stator and said rotor is formed; and a permanent magnetic provided between each of said projecting parts on the side of the one of said stator and said rotor from said unit core, said first magnetic pole being formed by said permanent magnet, and said second magnetic pole being formed by each of said projecting parts.
    Type: Application
    Filed: March 15, 2011
    Publication date: February 2, 2012
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yasuhiro MIYAMOTO, Hiroshi TSUMAGARI, Daisuke MORISHITA
  • Patent number: 7887993
    Abstract: To provide an optical information recording medium including a pigment appropriate for high-density and high-speed optical recording by the blue laser light of 350 to 500 nm and especially around 400 nm (for example, 405 nm), enabling recording at low power, suppressing thermal affect of recording to the optical recording layer, and assuring a reflection ratio or modulation degree by the change of a refraction index n and an attenuation coefficient k; and to provide a recording method thereof. Instead of the recording based on the optical phase difference obtained by a change ?n of the refraction index n of the pigment as in the conventional method, a pigment capable of performing recording based on the change ?k of the attenuation coefficient k has been obtained. Recording may be performed mainly by the change ?k of the attenuation coefficient k.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: February 15, 2011
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Keiichi Ida, Daisuke Morishita
  • Patent number: 7682679
    Abstract: A dye or dyes are selected, which are capable of absorbing a laser beam with a wavelength of 350 to 500 nm and are capable of recording sub-information using a laser beam with a wavelength of 640 to 680 nm or 750 to 830 nm. An optical information recording medium including the optical recording layer records sub-information (BCA information) of a type different from that of main information (data information) in a sub-information region (a BCA recording region) different from a main information area (a data area) using a laser beam.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: March 23, 2010
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Hironobu Shimizu, Daisuke Morishita
  • Patent number: 7633004
    Abstract: In a music reproduction apparatus designed for a listener to enjoy music while experiencing variations in vehicle status, plural types of phrases, which differ from each other, are assigned to plural tracks and are reproduced in accordance with reproduction parameters, which are controlled in response to vehicle status information. It is possible to control the setup values of reproduction parameters suiting vehicle statuses in response to travel environments. In addition, it is possible to synchronize the reproduction start timing of a music reproduction unit corresponding to one measure being reproduced by a first track with the reproduction start timing of a music reproduction unit corresponding to plural measures being reproduced by a second track. In a music information distribution system, a server stores music files including reproduction parameters suiting vehicle statuses and travel environments, so that the music reproduction apparatus reads them so as to reproduce corresponding musical tunes.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: December 15, 2009
    Assignee: Yamaha Corporation
    Inventors: Yoshimasa Isozaki, Kiyoshi Yamaki, Daisuke Morishita
  • Publication number: 20090061141
    Abstract: [Problems] To provide a monomethine dye compound that enables formation of a thin film with high refractive index and excellent optical properties through formation of a homogeneous thin film of dye molecule J-association complex by easy means (spin coating technique) and that has high sensitivity and excels in short mark recording capability so as to be suitable for high speed recording and high density recording, and further to provide an optical information recording medium utilizing the monomethine dye compound and a process for producing the same.
    Type: Application
    Filed: March 30, 2005
    Publication date: March 5, 2009
    Inventors: Daisuke Morishita, Mamoru Uchida, Takuo Kodaira, Isao Okitsu, Hiroshi Hiratsuka, Hiroaki Horiuchi, Maiko Fukita
  • Publication number: 20080253274
    Abstract: [PROBLEMS] To provide an optical information recording medium including a pigment appropriate for high-density and high-speed optical recording by the blue laser light of 350 to 500 nm and especially around 400 nm (for example, 405 nm), enabling recording at low power, suppressing thermal affect of recording to the optical recording layer, and assuring a reflection ratio or modulation degree by the change of a refraction index n and an attenuation coefficient k; and to provide a recording method thereof. [MEANS FOR SOLVING PROBLEMS] Instead of the recording based on the optical phase difference obtained by a change ?n of the refraction index n of the pigment as in the conventional method, a pigment capable of performing recording based on the change ?k of the attenuation coefficient k has been obtained. Recording may be performed mainly by the change ?k of the attenuation coefficient k.
    Type: Application
    Filed: September 30, 2005
    Publication date: October 16, 2008
    Applicant: Taiyo Yuden Co., Ltd.
    Inventors: Keiichi Ida, Daisuke Morishita
  • Publication number: 20080202323
    Abstract: In a music reproduction apparatus designed for a listener to enjoy music while experiencing variations in vehicle status, plural types of phrases, which differ from each other, are assigned to plural tracks and are reproduced in accordance with reproduction parameters, which are controlled in response to vehicle status information. It is possible to control the setup values of reproduction parameters suiting vehicle statuses in response to travel environments. In addition, it is possible to synchronize the reproduction start timing of a music reproduction unit corresponding to one measure being reproduced by a first track with the reproduction start timing of a music reproduction unit corresponding to plural measures being reproduced by a second track. In a music information distribution system, a server stores music files including reproduction parameters suiting vehicle statuses and travel environments, so that the music reproduction apparatus reads them so as to reproduce corresponding musical tunes.
    Type: Application
    Filed: December 4, 2007
    Publication date: August 28, 2008
    Applicant: YAMAHA CORPORATION
    Inventors: Yoshimasa Isozaki, Kiyoshi Yamaki, Daisuke Morishita
  • Publication number: 20060023620
    Abstract: In an optical information recording medium, a first sub-information area, a second sub-information area, and the main information area are provided in order from the center of the optical information recording medium in an outer peripheral direction. A first groove is formed in the first boundary area between the first sub-information area and the second sub-information area and a second groove is formed in the second boundary area between the second sub-information area and the main information area.
    Type: Application
    Filed: July 29, 2005
    Publication date: February 2, 2006
    Inventors: Hironobu Shimizu, Daisuke Morishita