Patents by Inventor Ryo Ohori

Ryo Ohori 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: 11446358
    Abstract: An object of the present invention is to provide a lyophilized formulation having improved storage stability of hepatic growth factor compared to conventional lyophilized formulations. The present invention provides a lyophilized formulation comprising (1) a hepatic growth factor, (2) trehalose and (3) one or more compounds selected from the group consisting of arginine, histidine, lysine, meglumine, glutamic acid, aspartic acid, proline, creatine, creatinine, tris(hydroxymethyl)aminomethane, and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: September 20, 2022
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Ryo Ohori, Kanta Horie
  • Patent number: 11374512
    Abstract: A motor includes: a stator having an annular stator core and multiple teeth protruding radially inwards from the stator core; a coil wound around the teeth; a shaft rotating around the rotation axis radially inside of the stator core; a rotor core fixed to the shaft; magnets positioned on the outer peripheral surface of the rotor core; a salient pole positioned between magnets adjacent to each other in the circumferential direction; an applying portion applying a voltage to the coil; and an applying control portion controlling the applying portion. The ratio of the number of magnetic poles of the magnets and the number of teeth is 2:3. The voltage is a rectangular wave, and its application is started when the tip of the salient pole does not face an opening in the teeth.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: June 28, 2022
    Assignee: MITSUBA Corporation
    Inventors: Ryo Ohori, Naoki Shioda
  • Publication number: 20220190756
    Abstract: A motor control device for controlling a brushless motor including a rotor and a three-phase armature coil includes: a position detection unit which detects the rotational position of the rotor; a control unit which outputs, in a first control mode or a second control mode, a first drive signal or a second drive signal to an inverter at a current-supply timing based on the rotational position of the rotor; and the inverter which outputs a first current-supply signal or a second current-supply signal to the three-phase armature coil when the first drive signal or the second drive signal is input. For any two of the three phases, a duty value when the duty of the applied voltages is the same is larger in the second control mode than in the first control mode.
    Type: Application
    Filed: March 26, 2020
    Publication date: June 16, 2022
    Applicant: MITSUBA Corporation
    Inventors: Ryo OHORI, Naoki SHIODA, Masaki HAYATA, Takashi YATSUDA, Atsushi KAWASAKI
  • Publication number: 20220173642
    Abstract: Provided are a motor with which dynamic unbalance of a rotor can be suppressed, and a deterioration in the motor characteristics can be reduced, and a method for manufacturing said motor. In a motor unit: a rotor central position, a magnet central position, and a stator central position are offset from one another; a length L1 between inner wall surfaces, facing one another in an axial direction, of magnet holders, an axial direction magnet length L2 of magnets, and an offset length L3 satisfy L1?L2<L3; and first and second holder lengths Lh are the same.
    Type: Application
    Filed: June 23, 2020
    Publication date: June 2, 2022
    Applicant: MITSUBA Corporation
    Inventor: Ryo OHORI
  • Patent number: 11324805
    Abstract: An object of the present invention is to provide a lyophilized formulation having improved storage stability of hepatic growth factor compared to conventional lyophilized formulations. The present invention provides a lyophilized formulation comprising (1) a hepatic growth factor, (2) trehalose and (3) one or more compounds selected from the group consisting of arginine, histidine, lysine, meglumine, glutamic acid, aspartic acid, proline, creatine, creatinine, tris(hydroxymethyl)aminomethane, and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: May 10, 2022
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Ryo Ohori, Kanta Horie
  • Patent number: 11289960
    Abstract: A motor and a brushless wiper motor are provided. The motor (2) includes: a stator (8); coils (24); a shaft (31); a rotor core (32); magnets (33) which are disposed on an outer peripheral surface (32b) of the rotor core (32) and a radial thickness of which at end portions (33s) on both sides in the circumferential direction around the rotation axis is smaller than a radial thickness in a circumferential intermediate portion; and salient poles (35) that are formed between magnets (33) adjacent in the circumferential direction of the outer peripheral surface (32b) of the rotor core (32) and protrude radially outward from the end portions (33s) of the magnets (33) in the circumferential direction. The width dimensions of the salient poles (35) in the radial direction being set to 40° or less in a form of an electrical angle.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: March 29, 2022
    Assignee: MITSUBA Corporation
    Inventors: Ryo Ohori, Naoki Shioda, Gensaku Yamakami
  • Publication number: 20220060069
    Abstract: Provided are a rotor, a motor, and a wiper motor. An arc center of an outer circumferential surface of a rotor core and an arc center of an inner circumferential surface of a permanent magnet are off-centered radially outward from a rotational axis, with the circumferential center disposed on the radially outermost side. An angle formed by salient pole side surfaces facing each other of circumferentially adjacent two salient poles is equal to an angle formed by magnet side surfaces on both sides circumferentially of the permanent magnet. When the distance between the outer circumferential surface of the rotor core and the radially outermost end of the salient poles is Lt, and the distance between the inner circumferential surface of the permanent magnet and the radially outermost end of the magnet side surfaces is Lme, the distances Lt, Lme are set such that the relationship Lme<Lt is satisfied.
    Type: Application
    Filed: October 1, 2019
    Publication date: February 24, 2022
    Applicant: MITSUBA Corporation
    Inventor: RYO OHORI
  • Publication number: 20220006342
    Abstract: A rotor is provided with: a rotor core (32); a plurality of permanent magnets (33); a substantially tubular magnet cover (71); and a load reception block (70). The rotor core (32) rotates integrally with a rotary shaft of a motor. The permanent magnets (33) are arranged on the outer peripheral part of the rotor core (32). The magnet cover (71) covers the exterior of the plurality of permanent magnets (33) and the rotor core (32), and has a flange part which is bent radially inward at the end along a rotation axis. The load reception block (70) is disposed between the flange part and the end surface of the rotor core (32) in a direction along the rotation axis, and abuts against the flange part and the rotor core (32).
    Type: Application
    Filed: November 11, 2019
    Publication date: January 6, 2022
    Applicant: MITSUBA Corporation
    Inventors: Ryo OHORI, Koji YONEKAWA, Takeshi KANAI
  • Publication number: 20210384783
    Abstract: A rotor, motor and brushless motor are provided. This rotor (9) includes a rotor core (32), permanent magnets (33), and a protrusion (35) protruding radially outward between permanent magnets (33) The permanent magnets (33) has a parallel orientation in which the easy magnetization direction is parallel to the radial direction in the center of the permanent magnets (33). The circumferential side faces (33d) of the permanent magnets (33) contact the protrusion (35) in the circumferential direction. Connection surfaces (33e) of the permanent magnets (33) are connected to the circumferential side face (33d) and to the outer peripheral surface (33a) on the radial outer side. The front end (35t) of the protrusion (35) in the protrusion direction is arranged between the center (33g) of the circumferential side face (33d) in the protrusion direction and the crossing ridge portion (33h) where the circumferential side face (33d) and the connection surface (33e) cross.
    Type: Application
    Filed: August 22, 2019
    Publication date: December 9, 2021
    Applicant: MITSUBA Corporation
    Inventors: Ryo OHORI, Naoki SHIODA
  • Publication number: 20210328528
    Abstract: A motor includes: a stator having an annular stator core and multiple teeth protruding radially inwards from the stator core; a coil wound around the teeth; a shaft rotating around the rotation axis radially inside of the stator core; a rotor core fixed to the shaft; magnets positioned on the outer peripheral surface of the rotor core; a salient pole positioned between magnets adjacent to each other in the circumferential direction; an applying portion applying a voltage to the coil; and an applying control portion controlling the applying portion. The ratio of the number of magnetic poles of the magnets and the number of teeth is 2:3. The voltage is a rectangular wave, and its application is started when the tip of the salient pole does not face an opening in the teeth.
    Type: Application
    Filed: October 1, 2019
    Publication date: October 21, 2021
    Applicant: MITSUBA Corporation
    Inventors: Ryo OHORI, Naoki SHIODA
  • Publication number: 20210028678
    Abstract: A motor includes: a stator having teeth protruding radially inward from the inner peripheral surface of a stator core; coils wound on the teeth; a shaft rotating on the inside radially of the stator core; a rotor core affixed to the shaft and radially centered on the rotation axis of the shaft; permanent magnets arranged on the outer peripheral surface of the rotor core; projecting poles which are formed projecting radially outward between the permanent magnets adjacent to each other in the circumferential direction of the outer peripheral surface of the rotor core, and with which the projecting contact surfaces of the permanent magnets are in contact. The stator is formed by stacking electromagnetic steel sheets in the direction of the rotation axis of the shaft. At least one of the axial ends of each of the permanent magnets projects further than an axial end of the rotor core.
    Type: Application
    Filed: March 22, 2019
    Publication date: January 28, 2021
    Applicant: MITSUBA Corporation
    Inventor: Ryo OHORI
  • Publication number: 20210021183
    Abstract: The motor is provided with: a rotor core; permanent magnets disposed on the outer circumferential surface of the rotor core and magnetized in parallel orientation; and a salient pole saliently formed between the permanent magnets. The ratio of the number of magnetic poles of the permanent magnets to the number of teeth is 2:3. Sloped surfaces are formed on the side surfaces of the permanent magnets in the circumferential direction. The angle ?2 between lines L3 and lines L2 is an electrical angle of 13° or more, said lines L3 connecting outer circumferential corner portions where the sloped surfaces and the outer circumferential surface are connected to each other and the shaft center, said lines L2 connecting the radial direction outermost side of the circumferential side surface of the salient pole and the shaft center.
    Type: Application
    Filed: March 22, 2019
    Publication date: January 21, 2021
    Applicant: MITSUBA Corporation
    Inventor: Ryo OHORI
  • Publication number: 20200227960
    Abstract: A motor and a brushless wiper motor are provided. The motor (2) includes: a stator (8); coils (24); a shaft (31); a rotor core (32); magnets (33) which are disposed on an outer peripheral surface (32b) of the rotor core (32) and a radial thickness of which at end portions (33s) on both sides in the circumferential direction around the rotation axis is smaller than a radial thickness in a circumferential intermediate portion; and salient poles (35) that are formed between magnets (33) adjacent in the circumferential direction of the outer peripheral surface (32b) of the rotor core (32) and protrude radially outward from the end portions (33s) of the magnets (33) in the circumferential direction. The width dimensions of the salient poles (35) in the radial direction being set to 40° or less in a form of an electrical angle.
    Type: Application
    Filed: June 26, 2018
    Publication date: July 16, 2020
    Applicant: MITSUBA Corporation
    Inventors: Ryo OHORI, Naoki SHIODA, Gensaku YAMAKAMI
  • Patent number: 10644552
    Abstract: A rotor of a brushless motor includes permanent magnets formed on the outer circumference of a rotating shaft to have a fan shape in an axial cross section, magnetized from the inner radial surface toward the outer radial surface, and arranged at even intervals so that magnetic poles of the outer radial surfaces are disposed alternately with respect to the polarities thereof in the circumferential direction. The outer radial surface of each of the permanent magnets includes a center of curvature on a line segment connecting a center point in the circumferential width on the outer radial surface with the axial center of the rotating shaft, and formed as a cylindrical surface having a radius of curvature smaller than the distance of the line segment. Each of the permanent magnets is magnetized in a parallel orientation so that the orientation of magnetized magnetic flux is parallel to the line segment.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: May 5, 2020
    Assignee: MITSUBA Corporation
    Inventors: Ryo Ohori, Naoki Shioda
  • Patent number: 10610569
    Abstract: An object of the present invention is to provide a lyophilized formulation having improved storage stability of hepatic growth factor compared to conventional lyophilized formulations. The present invention provides a lyophilized formulation comprising (1) a hepatic growth factor, (2) trehalose and (3) one or more compounds selected from the group consisting of arginine, histidine, lysine, meglumine, glutamic acid, aspartic acid, proline, creatine, creatinine, tris(hydroxymethyl)aminomethane, and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: April 7, 2020
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Ryo Ohori, Kanta Horie
  • Publication number: 20200083789
    Abstract: A brushless motor includes: a stator having a stator core and a winding; a rotor having a magnet; and a magnetic sensor for detecting the rotational position of the rotor. The rotor has a skew structure, and the magnet is skew-magnetized. The magnet has an overhang part. The magnetic sensor is disposed opposite to an axial end surface of the overhang part. The skew angle of the magnet is set in accordance with the angular deviation of sensor arrangement corresponding to motor specifications such as ?-connection or sine wave drive in a state where the magnetic sensor is disposed at an optimum position less affected by a winding field.
    Type: Application
    Filed: May 1, 2018
    Publication date: March 12, 2020
    Inventors: Ryo OHORI, Naoki SHIODA, Tomoyasu SUGIYAMA, Masaki HAYATA
  • Patent number: 10537612
    Abstract: An object of the present invention is to provide a lyophilized formulation having improved storage stability of hepatic growth factor compared to conventional lyophilized formulations. The present invention provides a lyophilized formulation comprising (1) a hepatic growth factor, (2) trehalose and (3) one or more compounds selected from the group consisting of arginine, histidine, lysine, meglumine, glutamic acid, aspartic acid, proline, creatine, creatinine, tris(hydroxymethyl)aminomethane, and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: January 21, 2020
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Ryo Ohori, Kanta Horie
  • Publication number: 20180198333
    Abstract: A rotor of a brushless motor includes permanent magnets formed on the outer circumference of a rotating shaft to have a fan shape in an axial cross section, magnetized from the inner radial surface toward the outer radial surface, and arranged at even intervals so that magnetic poles of the outer radial surfaces are disposed alternately with respect to the polarities thereof in the circumferential direction. The outer radial surface of each of the permanent magnets includes a center of curvature on a line segment connecting a center point in the circumferential width on the outer radial surface with the axial center of the rotating shaft, and formed as a cylindrical surface having a radius of curvature smaller than the distance of the line segment. Each of the permanent magnets is magnetized in a parallel orientation so that the orientation of magnetized magnetic flux is parallel to the line segment.
    Type: Application
    Filed: June 29, 2016
    Publication date: July 12, 2018
    Applicant: MITSUBA Corporation
    Inventors: RYO OHORI, NAOKI SHIODA
  • Publication number: 20170189487
    Abstract: An object of the present invention is to provide a lyophilized formulation having improved storage stability of hepatic growth factor compared to conventional lyophilized formulations. The present invention provides a lyophilized formulation comprising (1) a hepatic growth factor, (2) trehalose and (3) one or more compounds selected from the group consisting of arginine, histidine, lysine, meglumine, glutamic acid, aspartic acid, proline, creatine, creatinine, tris(hydroxymethyl)aminomethane, and pharmaceutically acceptable salts thereof.
    Type: Application
    Filed: April 24, 2015
    Publication date: July 6, 2017
    Inventors: Ryo Ohori, Kanta Horie