Patents by Inventor Hiroaki Hirano
Hiroaki Hirano 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).
-
Publication number: 20240083835Abstract: Provided is a monomer composition containing methyl methacrylate and methyl propionate, in which the methyl propionate content is more than 200 ppm by mass and 50,000 ppm by mass or less relative to the total mass of the monomer composition.Type: ApplicationFiled: November 17, 2023Publication date: March 14, 2024Applicant: Mitsubishi Chemical CorporationInventors: Hiroaki ITO, Yusuke HIRANO, Issei TANIGUCHI, Manabu ISOMURA, Kouichi KANEMORI
-
Publication number: 20240084055Abstract: Provided is a monomer composition containing methyl methacrylate, and at least one compound of methyl pyruvate and methyl 2-methylbutyrate.Type: ApplicationFiled: November 17, 2023Publication date: March 14, 2024Applicant: Mitsubishi Chemical CorporationInventors: Hiroaki ITO, Yusuke HIRANO, Issei TANIGUCHI, Manabu ISOMURA, Kouichi KANEMORI
-
Publication number: 20240055941Abstract: A geared motor includes a synchronous reluctance motor whose maximum rotational speed is 20000 rpm to 45000 rpm and in which rare earth bonded magnets are embedded in a rotor, and a speed reducer which reduces the rotational speed of the synchronous reluctance motor to a rotational speed in a usage range while increasing torque to a predetermined range. When a radius of the rotor is represented by R (cm) and a length of the rotor in an axial direction is represented by L (cm), the rotor has a size which satisfies conditions of 2 cm?R?6 cm and 2 cm?L?25 cm.Type: ApplicationFiled: December 6, 2021Publication date: February 15, 2024Applicant: AICHI STEEL CORPORATIONInventors: Aki WATARAI, Hiroaki HIRANO, Masahiro KAYANO, Tadashi FUJIMAKI, Choongsik KIM, Hayato WATANABE, Kazunori ITO, Kazuya ISHIDA
-
Patent number: 11894745Abstract: A vibrating motor includes a stationary portion, and a movable portion capable of vibrating with respect to the stationary portion along a center axis extending in a vertical direction. The stationary portion includes a bearing portion which extends along the center axis and supports the movable portion to be able to vibrate along the center axis, and a coil including a conductive wire wound around the center axis. The bearing portion includes a first region including a coil inner region on a radially inner side of the coil.Type: GrantFiled: December 10, 2021Date of Patent: February 6, 2024Assignee: NIDEC CORPORATIONInventors: Atsunori Hirata, Hiroaki Hirano, Ryoichi Mitsuhata
-
Patent number: 11887478Abstract: There are provided a communication terminal, a server device, a movement guidance system, and a computer program that can provide movement guidance based on a new version of map information soon after starting up the communication terminal. Specifically, a communication terminal 5 is configured to identify, after its startup, update target areas which are areas whose terminal-side map information 48 included in the communication terminal 5 is an older version of map information than device-side map information 25 included in a server device 3; request the server device 3 for movement guidance information 26 targeted for at least update target areas around a current location, the movement guidance information 26 being used to provide movement guidance for a mobile unit; and provide movement guidance for the mobile unit using movement guidance information 26 transmitted from the server device 3 in response to the request.Type: GrantFiled: March 20, 2018Date of Patent: January 30, 2024Assignee: AISIN CORPORATIONInventors: Hiroaki Hirano, Shingo Aoyama, Daisuke Tanizaki
-
Patent number: 11876429Abstract: A vibration motor includes a stationary portion and a movable portion vibrable in an axis direction with respect to the stationary portion. The stationary portion includes a coil and a housing. The housing includes a first region expanding in a first direction orthogonal to the axis direction, and a second region disposed on one side in a second direction orthogonal to the axis direction and the first direction relative to the first region and expanding in the first direction. In a cross-section across the axis direction, a distance in the second direction between the second region and the first region is longest at a center in the first direction of the first region. In the cross-section, a shape formed by the first and second regions is asymmetric with respect to an axis extending parallel to the first direction through a center of the housing in the second direction.Type: GrantFiled: April 21, 2022Date of Patent: January 16, 2024Assignee: NIDEC CORPORATIONInventors: Atsunori Hirata, Daisuke Adachi, Hiroaki Hirano, Tomohiro Kobayashi
-
Patent number: 11876426Abstract: A vibrating motor includes a stationary portion, and a movable portion able to vibrate with respect to the stationary portion along a center axis extending in a vertical direction. The stationary portion includes a bearing portion which supports the movable portion to be able to vibrate along the center axis and has a tubular shape extending along the center axis, and a coil which directly or indirectly opposes at least a portion of the movable portion in a radial direction. A lower end portion of the bearing portion has a tubular shape extending along the center axis. A communication hole which penetrates in the vertical direction and allows an outside of the bearing portion and an inside of a portion above the lower end portion of the bearing portion to communicate with each other is provided on a radially inner side of the lower end portion.Type: GrantFiled: December 10, 2021Date of Patent: January 16, 2024Assignee: NIDEC CORPORATIONInventors: Atsunori Hirata, Hiroaki Hirano, Ryoichi Mitsuhata
-
Patent number: 11843307Abstract: A motor includes a stator, a rotor, and a bearing. The stator includes a shaft that extends in a vertical direction. The rotor is rotatable around the shaft. The bearing supports the rotor in a rotatable manner. The rotor includes a magnet, a case, and a tooth groove. The magnet is radially outward of the stator and opposes the stator in a radial direction. The case covers a radially outer end of the magnet. The tooth groove is provided in a radially outer surface of the case.Type: GrantFiled: June 1, 2021Date of Patent: December 12, 2023Assignee: NIDEC CORPORATIONInventors: Hideki Nishimura, Tomohiro Hasegawa, Hiroaki Hirano, Yoichi Sekii
-
Publication number: 20230361661Abstract: A field magnet manufacturing method including reheating and softening a bonded magnet after thermal curing; and press-fitting the softened bonded magnet into a case from an opening on one side of the case. The case has a cylindrical portion and a lid portion coupled to another side of the cylindrical portion. The cylindrical portion has a fixing portion for the bonded magnet. At least the fixing portion is formed of a magnetic material. The press-fitting includes feeding the bonded magnet relatively into the cylindrical portion while allowing a relative posture variation between the bonded magnet and the case. This makes it possible to stably feed even the softened bonded magnet into the case, and the inner surface of the bonded magnet has a similar accuracy to that of the inner surface of the case.Type: ApplicationFiled: September 30, 2020Publication date: November 9, 2023Applicant: AICHI STEEL CORPORATIONInventors: Satoru KAN, Hiroaki HIRANO, Hironar MITARA, Takumi ASANO, Motonobu FURUYAMA
-
Patent number: 11804753Abstract: A motor includes a stator, a rotor, and a bearing. The stator includes a shaft that extends in a vertical direction. The rotor is rotatable around the shaft. The bearing supports the rotor in a rotatable manner. The rotor includes a magnet, a case, and a tooth groove. The magnet is radially outward of the stator and opposes the stator in a radial direction. The case covers a radially outer end of the magnet. The tooth groove is provided in a radially outer surface of the case.Type: GrantFiled: June 1, 2021Date of Patent: October 31, 2023Assignee: NIDEC CORPORATIONInventors: Hideki Nishimura, Tomohiro Hasegawa, Hiroaki Hirano, Yoichi Sekii
-
Patent number: 11789536Abstract: An input device includes a contact body to contact an object, a pressure sensor to detect pressure of contact of the contact body with the object, a vibrator to generate a vibration to provide a tactile sensation, and a vibration controller. The vibration of the vibrator when the pressure detected based on the output of the pressure sensor is large is larger than that when the pressure detected based on the output of the pressure sensor is small.Type: GrantFiled: December 10, 2021Date of Patent: October 17, 2023Assignee: NIDEC CORPORATIONInventors: Atsunori Hirata, Tomohiro Hasegawa, Daisuke Adachi, Hiroaki Hirano, Tomohiro Kobayashi
-
Publication number: 20230317370Abstract: A field magnet manufacturing method where a bonded magnet's inner surface press-fitted in a yoke has a certain accuracy irrespective of the accuracy of the yoke's outer circumferential surface. A cylindrical bonded magnet from binding magnet particles with a thermosetting resin is fixed in a tubular yoke of magnetic material. The method includes reheating and softening the bonded magnet after thermal curing; and press-fitting in the bonded magnet after the softening step from a tapered portion on one end side of the yoke to press the bonded magnet's outer circumferential surface against the yoke's inner surface. The press-fitting includes feeding the bonded magnet relatively into the yoke while allowing a relative posture variation between the bonded magnet and the yoke so the bonded magnet's inner surface to be remolded into a shape along the inner surface of the yoke exhibits almost the same accuracy as the yoke's inner surface.Type: ApplicationFiled: June 6, 2023Publication date: October 5, 2023Applicant: AICHI STEEL CORPORATIONInventors: Satoru KAN, Hiroaki HIRANO, Hironari MITARAI, Takumi ASANO, Motonobu FURUYAMA
-
Patent number: 11710598Abstract: A field magnet manufacturing method where a bonded magnet's inner surface press-fitted in a yoke has a certain accuracy irrespective of the accuracy of the yoke's outer circumferential surface. A cylindrical bonded magnet from binding magnet particles with a thermosetting resin is fixed in a tubular yoke of magnetic material. The method includes reheating and softening the bonded magnet after thermal curing; and press-fitting in the bonded magnet after the softening step from a tapered portion on one end side of the yoke to press the bonded magnet's outer circumferential surface against the yoke's inner surface. The press-fitting includes feeding the bonded magnet relatively into the yoke while allowing a relative posture variation between the bonded magnet and the yoke so the bonded magnet's inner surface to be remolded into a shape along the inner surface of the yoke exhibits almost the same accuracy as the yoke's inner surface.Type: GrantFiled: May 29, 2020Date of Patent: July 25, 2023Assignee: AICHI STEEL CORPORATIONInventors: Satoru Kan, Hiroaki Hirano, Hironari Mitarai, Takumi Asano, Motonobu Furuyama
-
Patent number: 11670997Abstract: A vibration motor includes a stationary part, and a movable element which has a magnet and can vibrate in one direction. The stationary part includes a coil which applies a driving force to the magnet due to energization, a housing which houses the movable element and the coil therein, a first lid part which closes an end portion of the housing on one side in the one direction, and a first bearing part. The first bearing part is disposed inside the housing on the other side in the one direction from the first lid part. The first bearing part includes a bearing inner circumferential surface disposed with a gap therebetween with respect to an outer circumferential surface of a portion of the movable element on one side in the one direction.Type: GrantFiled: July 8, 2021Date of Patent: June 6, 2023Assignee: NIDEC CORPORATIONInventors: Atsunori Hirata, Tomohiro Hasegawa, Daisuke Adachi, Hiroaki Hirano, Hideki Nishimura
-
Publication number: 20220345019Abstract: A vibration motor includes a stationary portion and a movable portion vibrable in an axis direction with respect to the stationary portion. The stationary portion includes a coil and a housing. The housing includes a first region expanding in a first direction orthogonal to the axis direction, and a second region disposed on one side in a second direction orthogonal to the axis direction and the first direction relative to the first region and expanding in the first direction. In a cross-section across the axis direction, a distance in the second direction between the second region and the first region is longest at a center in the first direction of the first region. In the cross-section, a shape formed by the first and second regions is asymmetric with respect to an axis extending parallel to the first direction through a center of the housing in the second direction.Type: ApplicationFiled: April 21, 2022Publication date: October 27, 2022Inventors: Atsunori HIRATA, Daisuke ADACHI, Hiroaki HIRANO, Tomohiro KOBAYASHI
-
Publication number: 20220278570Abstract: A motor includes a rotor including a shaft centered on a central axis extending vertically, a bearing that supports the shaft, an air-core coil that is radially outward of the rotor and extends in an axial direction, and a back yoke that includes an axially extending shape with a linear portion having a coil shape, and includes an inner peripheral surface to which the air-core coil is fixed.Type: ApplicationFiled: February 24, 2022Publication date: September 1, 2022Inventors: Yu TACHIBANA, Yoichi SEKII, Hiroaki HIRANO
-
Publication number: 20220278589Abstract: A motor includes a shaft centered on a central axis that extends vertically, a bearing that supports the shaft, and a stator including a coil radially opposing an outer peripheral surface of the shaft. The shaft includes a magnetization pattern in which at least two or more poles of N and S poles are alternately arranged in a circumferential direction.Type: ApplicationFiled: February 24, 2022Publication date: September 1, 2022Inventors: Yu TACHIBANA, Tomohiro HASEGAWA, Yoichi SEKII, Masahiro OTANI, Hiroaki HIRANO
-
Publication number: 20220223341Abstract: A field magnet manufacturing method where a bonded magnet's inner surface press-fitted in a yoke has a certain accuracy irrespective of the accuracy of the yoke's outer circumferential surface. A cylindrical bonded magnet from binding magnet particles with a thermosetting resin is fixed in a tubular yoke of magnetic material. The method includes reheating and softening the bonded magnet after thermal curing; and press-fitting in the bonded magnet after the softening step from a tapered portion on one end side of the yoke to press the bonded magnet's outer circumferential surface against the yoke's inner surface. The press-fitting includes feeding the bonded magnet relatively into the yoke while allowing a relative posture variation between the bonded magnet and the yoke so the bonded magnet's inner surface to be remolded into a shape along the inner surface of the yoke exhibits almost the same accuracy as the yoke's inner surface.Type: ApplicationFiled: May 29, 2020Publication date: July 14, 2022Applicant: AICHI STEEL CORPORATIONInventors: Satoru KAN, Hiroaki HIRANO, Hironari MITARAI, Takumi ASANO, Motonobu FURUYAMA
-
Publication number: 20220209638Abstract: A vibrating motor includes a stationary portion, and a movable portion able to vibrate with respect to the stationary portion along a center axis extending in a vertical direction. The stationary portion includes a bearing portion which supports the movable portion to be able to vibrate along the center axis and has a tubular shape extending along the center axis, and a coil which directly or indirectly opposes at least a portion of the movable portion in a radial direction. A lower end portion of the bearing portion has a tubular shape extending along the center axis. A communication hole which penetrates in the vertical direction and allows an outside of the bearing portion and an inside of a portion above the lower end portion of the bearing portion to communicate with each other is provided on a radially inner side of the lower end portion.Type: ApplicationFiled: December 10, 2021Publication date: June 30, 2022Inventors: Atsunori HIRATA, Hiroaki HIRANO, Ryoichi MITSUHATA
-
Publication number: 20220206580Abstract: An input device includes a contact body to contact an object, a pressure sensor to detect pressure of contact of the contact body with the object, a vibrator to generate a vibration to provide a tactile sensation, and a vibration controller. The vibration of the vibrator when the pressure detected based on the output of the pressure sensor is large is larger than that when the pressure detected based on the output of the pressure sensor is small.Type: ApplicationFiled: December 10, 2021Publication date: June 30, 2022Inventors: Atsunori HIRATA, Tomohiro HASEGAWA, Daisuke ADACHI, Hiroaki HIRANO, Tomohiro KOBAYASHI