Patents by Inventor Hiroto ASAI
Hiroto ASAI 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: 20230391197Abstract: An electric vehicle diagnostic apparatus to be installed in an electric vehicle including a temperature sensor configured to detect a temperature of a drive motor or a temperature of an inverter configured to drive the drive motor includes a controller. The controller is configured to make a diagnosis of the temperature sensor. The controller is configured to perform mask processing in which the diagnosis is not made at system startup of the electric vehicle. The controller is configured to switch a length of time of the mask processing in accordance with a condition.Type: ApplicationFiled: May 17, 2023Publication date: December 7, 2023Inventors: Tomoki SHINOZAKI, Takuya TAKASHIMA, Hiroto ASAI
-
Patent number: 11565569Abstract: A heater apparatus includes a base member, a cover member supported by the base member, a cloth member provided between the base member and the cover member to hold a heater wire, and a heater temperature sensor brought into contact with the cloth member, covered on a base member side facing the base member and a cover member side facing the cover member with the cloth member, and configured to detect a temperature of the heater wire. The cover member has a cover recessed portion recessed towards the base member in an overlapping region where the cloth member on the base member side and the cloth member on the cover member side of the heater temperature sensor overlap.Type: GrantFiled: April 4, 2019Date of Patent: January 31, 2023Assignee: SUBARU CORPORATIONInventors: Yo Masuda, Ryoma Okazumi, Isao Nakagawa, Takahiro Akaba, Takuya Takashima, Ringo Shimada, Shogo Yoshida, Hiroto Asai
-
Patent number: 10940768Abstract: A main relay protection device includes a motor generator, a rechargeable driving battery, an externally-coupled charger, a main relay, a charging bus bar, a charging relay, a main relay temperature sensor, and a controller. The motor generator drives a vehicle. The battery supplies power to the motor generator. The charger charges the battery. The main bus bar is disposed between the battery and the motor generator. The main relay is disposed in the main bus bar. The charging bus bar is disposed between the main bus bar and the charger. The charging relay is disposed in the charging bus bar. The sensor is configured to detect a temperature of the main relay. The controller performs ON-control on the charging relay in a state where the main relay is turned on, if the detected temperature of the main relay is higher than or equal to a preset heat radiation starting threshold.Type: GrantFiled: June 4, 2019Date of Patent: March 9, 2021Assignee: SUBARU CORPORATIONInventors: Hiroto Asai, Yo Masuda, Takanobu Nishikori, Kohei Takei
-
Patent number: 10694583Abstract: An external heater operation determination system includes, in a vehicle: a first device to be heated by an attached external heater; a second device, separate from the first device, to be cooled by a refrigerant; a circulation device configured to circulate the refrigerant through a circuit; and a temperature detection device that is configured to detect a temperature of the refrigerant and disposed such that if the refrigerant is not circulating through the circuit, the temperature of the refrigerant detected by the temperature detection device in the circuit does not rise even if the external heater is operating, whereas if the refrigerant is circulating through the circuit, the detected temperature of the refrigerant changes. The external heater operation determination system includes a determination device able to determine that the external heater is not operating on a basis of a change in the temperature after the circulation of the refrigerant.Type: GrantFiled: October 30, 2018Date of Patent: June 23, 2020Assignee: SUBARU CORPORATIONInventors: Tomoo Sarukawa, Masami Yamamoto, Ringo Shimada, Hiroto Asai, Yo Masuda
-
Publication number: 20200094701Abstract: A main relay protection device includes a motor generator, a rechargeable driving battery, an externally-coupled charger, a main relay, a charging bus bar, a charging relay, a main relay temperature sensor, and a controller. The motor generator drives a vehicle. The battery supplies power to the motor generator. The charger charges the battery. The main bus bar is disposed between the battery and the motor generator. The main relay is disposed in the main bus bar. The charging bus bar is disposed between the main bus bar and the charger. The charging relay is disposed in the charging bus bar. The sensor is configured to detect a temperature of the main relay. The controller performs ON-control on the charging relay in a state where the main relay is turned on, if the detected temperature of the main relay is higher than or equal to a preset heat radiation starting threshold.Type: ApplicationFiled: June 4, 2019Publication date: March 26, 2020Inventors: Hiroto Asai, Yo Masuda, Takanobu Nishikori, Kohei Takei
-
Publication number: 20190315187Abstract: A heater apparatus includes a base member, a cover member supported by the base member, a cloth member provided between the base member and the cover member to hold a heater wire, and a heater temperature sensor brought into contact with the cloth member, covered on a base member side facing the base member and a cover member side facing the cover member with the cloth member, and configured to detect a temperature of the heater wire. The cover member has a cover recessed portion recessed towards the base member in an overlapping region where the cloth member on the base member side and the cloth member on the cover member side of the heater temperature sensor overlap.Type: ApplicationFiled: April 4, 2019Publication date: October 17, 2019Inventors: Yo MASUDA, Ryoma OKAZUMI, Isao NAKAGAWA, Takahiro AKABA, Takuya TAKASHIMA, Ringo SHIMADA, Shogo YOSHIDA, Hiroto ASAI
-
Publication number: 20190191489Abstract: An external heater operation determination system includes, in a vehicle: a first device to be heated by an attached external heater; a second device, separate from the first device, to be cooled by a refrigerant; a circulation device configured to circulate the refrigerant through a circuit; and a temperature detection device that is configured to detect a temperature of the refrigerant and disposed such that if the refrigerant is not circulating through the circuit, the temperature of the refrigerant detected by the temperature detection device in the circuit does not rise even if the external heater is operating, whereas if the refrigerant is circulating through the circuit, the detected temperature of the refrigerant changes. The external heater operation determination system includes a determination device able to determine that the external heater is not operating on a basis of a change in the temperature after the circulation of the refrigerant.Type: ApplicationFiled: October 30, 2018Publication date: June 20, 2019Inventors: Tomoo SARUKAWA, Masami YAMAMOTO, Ringo SHIMADA, Hiroto ASAI, Yo MASUDA
-
Publication number: 20190047474Abstract: A door mirror device for a vehicle has a mirror base that is fixed to a vehicle body side and that has a mirror base side screw portion. Further, the door mirror device for a vehicle has a stand that has a rotating shaft portion around whose axis is rotated a mirror supporting portion that supports a mirror, and a stand side screw portion that is engaged with the mirror base side screw portion. Further, the stand is fixed to the mirror base in a state in which the mirror base side screw portion and the stand side screw portion are engaged.Type: ApplicationFiled: February 27, 2017Publication date: February 14, 2019Inventors: Hiroto ASAI, Masakazu IWATSUKI, Shigeki YOSHIDA
-
Patent number: 9939499Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a static magnetic field magnet, a gradient coil, a bore tube and a sealed space forming unit. The gradient coil is formed to be approximately cylindrical, arranged in a cylinder of the static magnetic field magnet, and adds a gradient magnetic field to the static magnetic field. The bore tube is formed to be approximately cylindrical and arranged in the cylinder of the gradient coil. The sealed space forming unit forms a sealed space enclosing the gradient coil between an inner circumferential side of the static magnetic field magnet and an outer circumferential side of the bore tube. At least a part of at least one of the side ends of the gradient coil does not make contact with the sealed space.Type: GrantFiled: July 11, 2013Date of Patent: April 10, 2018Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Ayumi Katsunuma, Masatoshi Yamashita, Hiromitsu Takamori, Kota Watanabe, Hiroto Asai
-
Publication number: 20160229344Abstract: In a vehicle door mirror device, an inner wall of a mirror holder is supported by an inner support face of an inner support section of a support pivot, and a drive rod is displaced to pivot the mirror holder and a mirror. Note that a limiting recessed portion of the inner support section is disposed across a center axis line at the opposite side from the inner support face, and has a larger dimension about the center axis line than that of the inner support face. Input from the inner wall to the inner support section of displacement force of the drive rod toward the vehicle rear is limited by the limiting recessed portion. Thus, when the drive rod starts to be displaced toward the vehicle rear, the inner wall can be pivoted with respect to the inner support section, and the mirror can be pivoted smoothly.Type: ApplicationFiled: February 3, 2016Publication date: August 11, 2016Inventors: Hiroto ASAI, Takashi ICHIKAWA, Masakazu IWATSUKI
-
Publication number: 20130314089Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a static magnetic field magnet, a gradient coil, a bore tube and a sealed space forming unit. The gradient coil is formed to be approximately cylindrical, arranged in a cylinder of the static magnetic field magnet, and adds a gradient magnetic field to the static magnetic field. The bore tube is formed to be approximately cylindrical and arranged in the cylinder of the gradient coil. The sealed space forming unit forms a sealed space enclosing the gradient coil between an inner circumferential side of the static magnetic field magnet and an outer circumferential side of the bore tube. At least a part of at least one of the side ends of the gradient coil does not make contact with the sealed space.Type: ApplicationFiled: July 11, 2013Publication date: November 28, 2013Applicants: TOSHIBA MEDICAL SYSTEMS CORPORATION, KABUSHIKI KAISHA TOSHIBAInventors: Ayumi KATSUNUMA, Masatoshi YAMASHITA, Hiromitsu TAKAMORI, Kota WATANABE, Hiroto ASAI
-
Patent number: 8568006Abstract: Arrangement accuracy of a transmission member with respect to an exposure hole is increased. In a door mirror device for a vehicle, a turn lamp is assembled to a bracket, a visor rim, and a visor cover, and an exposure portion of a lamp lens of the turn lamp is exposed by an exposure hole of a lower visor cover. As an anchor plate of the lower visor cover is inserted into an anchoring hole of the lamp lens and a fitting column of the lamp lens is inserted into a fitting hole of the lower visor cover, the lamp lens is positioned in the lower visor cover. Therefore, the accuracy precision of the exposure portion with respect to the exposure hole can be increased, thereby enhancing the appearance of a gap between the exposure portion and the periphery of the exposure hole.Type: GrantFiled: November 23, 2011Date of Patent: October 29, 2013Assignee: Kabushiki Kaisha Tokai-Rika-Denki-SeisakushoInventor: Hiroto Asai
-
Publication number: 20120134166Abstract: Arrangement accuracy of a transmission member with respect to an exposure hole is increased. In a door mirror device for a vehicle, a turn lamp is assembled to a bracket, a visor rim, and a visor cover, and an exposure portion of a lamp lens of the turn lamp is exposed by an exposure hole of a lower visor cover. As an anchor plate of the lower visor cover is inserted into an anchoring hole of the lamp lens and a fitting column of the lamp lens is inserted into a fitting hole of the lower visor cover, the lamp lens is positioned in the lower visor cover. Therefore, the accuracy precision of the exposure portion with respect to the exposure hole can be increased, thereby enhancing the appearance of a gap between the exposure portion and the periphery of the exposure hole.Type: ApplicationFiled: November 23, 2011Publication date: May 31, 2012Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHOInventor: Hiroto ASAI