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).
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Patent number: 11446358Abstract: 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: GrantFiled: April 24, 2015Date of Patent: September 20, 2022Assignee: Eisai R&D Management Co., Ltd.Inventors: Ryo Ohori, Kanta Horie
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Patent number: 11374512Abstract: 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: GrantFiled: October 1, 2019Date of Patent: June 28, 2022Assignee: MITSUBA CorporationInventors: Ryo Ohori, Naoki Shioda
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Publication number: 20220190756Abstract: 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: ApplicationFiled: March 26, 2020Publication date: June 16, 2022Applicant: MITSUBA CorporationInventors: Ryo OHORI, Naoki SHIODA, Masaki HAYATA, Takashi YATSUDA, Atsushi KAWASAKI
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Publication number: 20220173642Abstract: 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: ApplicationFiled: June 23, 2020Publication date: June 2, 2022Applicant: MITSUBA CorporationInventor: Ryo OHORI
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Patent number: 11324805Abstract: 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: GrantFiled: April 24, 2015Date of Patent: May 10, 2022Assignee: Eisai R&D Management Co., Ltd.Inventors: Ryo Ohori, Kanta Horie
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Patent number: 11289960Abstract: 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: GrantFiled: June 26, 2018Date of Patent: March 29, 2022Assignee: MITSUBA CorporationInventors: Ryo Ohori, Naoki Shioda, Gensaku Yamakami
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Publication number: 20220060069Abstract: 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: ApplicationFiled: October 1, 2019Publication date: February 24, 2022Applicant: MITSUBA CorporationInventor: RYO OHORI
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Publication number: 20220006342Abstract: 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: ApplicationFiled: November 11, 2019Publication date: January 6, 2022Applicant: MITSUBA CorporationInventors: Ryo OHORI, Koji YONEKAWA, Takeshi KANAI
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Publication number: 20210384783Abstract: 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: ApplicationFiled: August 22, 2019Publication date: December 9, 2021Applicant: MITSUBA CorporationInventors: Ryo OHORI, Naoki SHIODA
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Publication number: 20210328528Abstract: 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: ApplicationFiled: October 1, 2019Publication date: October 21, 2021Applicant: MITSUBA CorporationInventors: Ryo OHORI, Naoki SHIODA
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Publication number: 20210028678Abstract: 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: ApplicationFiled: March 22, 2019Publication date: January 28, 2021Applicant: MITSUBA CorporationInventor: Ryo OHORI
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Publication number: 20210021183Abstract: 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: ApplicationFiled: March 22, 2019Publication date: January 21, 2021Applicant: MITSUBA CorporationInventor: Ryo OHORI
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Publication number: 20200227960Abstract: 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: ApplicationFiled: June 26, 2018Publication date: July 16, 2020Applicant: MITSUBA CorporationInventors: Ryo OHORI, Naoki SHIODA, Gensaku YAMAKAMI
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Patent number: 10644552Abstract: 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: GrantFiled: June 29, 2016Date of Patent: May 5, 2020Assignee: MITSUBA CorporationInventors: Ryo Ohori, Naoki Shioda
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Patent number: 10610569Abstract: 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: GrantFiled: April 24, 2015Date of Patent: April 7, 2020Assignee: Eisai R&D Management Co., Ltd.Inventors: Ryo Ohori, Kanta Horie
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Publication number: 20200083789Abstract: 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: ApplicationFiled: May 1, 2018Publication date: March 12, 2020Inventors: Ryo OHORI, Naoki SHIODA, Tomoyasu SUGIYAMA, Masaki HAYATA
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Patent number: 10537612Abstract: 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: GrantFiled: April 24, 2015Date of Patent: January 21, 2020Assignee: Eisai R&D Management Co., Ltd.Inventors: Ryo Ohori, Kanta Horie
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Publication number: 20180198333Abstract: 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: ApplicationFiled: June 29, 2016Publication date: July 12, 2018Applicant: MITSUBA CorporationInventors: RYO OHORI, NAOKI SHIODA
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Publication number: 20170189487Abstract: 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: ApplicationFiled: April 24, 2015Publication date: July 6, 2017Inventors: Ryo Ohori, Kanta Horie