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).
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Patent number: 11951874Abstract: 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: GrantFiled: June 23, 2021Date of Patent: April 9, 2024Assignee: Mazda Motor CorporationInventors: Daisaku Ogawa, Daisuke Umetsu, Shinya Morishita
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Publication number: 20230075941Abstract: 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: ApplicationFiled: February 26, 2020Publication date: March 9, 2023Inventors: Kazuchika TSUCHIDA, Hiroki ASO, Takaya SHIMOKAWA, Ryogo TAKAHASHI, Daisuke MORISHITA
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Publication number: 20220385140Abstract: 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: ApplicationFiled: February 26, 2020Publication date: December 1, 2022Inventors: Kazuchika TSUCHIDA, Hiroki ASO, Takaya SHIMOKAWA, Ryogo TAKAHASHI, Daisuke MORISHITA
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Patent number: 9077224Abstract: 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: GrantFiled: November 6, 2012Date of Patent: July 7, 2015Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Daisuke Morishita, Yuki Ochiai
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Publication number: 20150162805Abstract: 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: ApplicationFiled: November 18, 2014Publication date: June 11, 2015Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hiroshi TSUMAGARI, Daisuke MORISHITA
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Patent number: 8987968Abstract: 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: GrantFiled: June 24, 2011Date of Patent: March 24, 2015Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Daisuke Morishita, Yasuhiro Miyamoto
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Patent number: 8937418Abstract: 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: GrantFiled: November 7, 2012Date of Patent: January 20, 2015Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Daisuke Morishita, Yuki Ochiai
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Patent number: 8937417Abstract: 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: GrantFiled: November 16, 2011Date of Patent: January 20, 2015Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Yasuhiro Miyamoto, Hiroshi Tsumagari, Daisuke Morishita
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Publication number: 20140300244Abstract: 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: ApplicationFiled: April 7, 2014Publication date: October 9, 2014Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventor: Daisuke MORISHITA
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Patent number: 8653709Abstract: 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: GrantFiled: March 15, 2011Date of Patent: February 18, 2014Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Yasuhiro Miyamoto, Hiroshi Tsumagari, Daisuke Morishita
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Publication number: 20120187696Abstract: 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: ApplicationFiled: November 16, 2011Publication date: July 26, 2012Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Yasuhiro Miyamoto, Hiroshi Tsumagari, Daisuke Morishita
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Publication number: 20120038168Abstract: 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: ApplicationFiled: June 24, 2011Publication date: February 16, 2012Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Daisuke MORISHITA, Yasuhiro Miyamoto
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Publication number: 20120025534Abstract: 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: ApplicationFiled: March 15, 2011Publication date: February 2, 2012Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Yasuhiro MIYAMOTO, Hiroshi TSUMAGARI, Daisuke MORISHITA
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Patent number: 7887993Abstract: 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: GrantFiled: September 30, 2005Date of Patent: February 15, 2011Assignee: Taiyo Yuden Co., Ltd.Inventors: Keiichi Ida, Daisuke Morishita
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Patent number: 7682679Abstract: 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: GrantFiled: July 29, 2005Date of Patent: March 23, 2010Assignee: Taiyo Yuden Co., Ltd.Inventors: Hironobu Shimizu, Daisuke Morishita
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Patent number: 7633004Abstract: 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: GrantFiled: December 4, 2007Date of Patent: December 15, 2009Assignee: Yamaha CorporationInventors: Yoshimasa Isozaki, Kiyoshi Yamaki, Daisuke Morishita
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Publication number: 20090061141Abstract: [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: ApplicationFiled: March 30, 2005Publication date: March 5, 2009Inventors: Daisuke Morishita, Mamoru Uchida, Takuo Kodaira, Isao Okitsu, Hiroshi Hiratsuka, Hiroaki Horiuchi, Maiko Fukita
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Publication number: 20080253274Abstract: [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: ApplicationFiled: September 30, 2005Publication date: October 16, 2008Applicant: Taiyo Yuden Co., Ltd.Inventors: Keiichi Ida, Daisuke Morishita
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Publication number: 20080202323Abstract: 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: ApplicationFiled: December 4, 2007Publication date: August 28, 2008Applicant: YAMAHA CORPORATIONInventors: Yoshimasa Isozaki, Kiyoshi Yamaki, Daisuke Morishita
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Publication number: 20060023620Abstract: 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: ApplicationFiled: July 29, 2005Publication date: February 2, 2006Inventors: Hironobu Shimizu, Daisuke Morishita