Patents by Inventor Hitoshi Aoyama
Hitoshi Aoyama 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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Publication number: 20240110998Abstract: A magnetic sensor includes: a sensor head having a magnetic material; a drive unit configured to energize the sensor head; a pickup coil close to the sensor head; and an information processing unit configured to generate a bias magnetic field by energizing the pickup coil and detect a signal corresponding to an induced voltage generated in the pickup coil, in which the information processing unit generates a difference signal indicating a difference between a first signal corresponding to a first voltage generated in the pickup coil when the sensor head is in an energized state and a second signal corresponding to a second voltage generated in the pickup coil when the sensor head is in a non-energized state.Type: ApplicationFiled: December 21, 2021Publication date: April 4, 2024Inventors: Ippei AKITA, Michiharu YAMAMOTO, Hitoshi AOYAMA, Takeshi KAWANO
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Publication number: 20240096235Abstract: An information processing apparatus (1) included in a welding training system includes a transmittance adjuster (14) capable of adjusting a transmittance of a window of a welding helmet in virtual space in multiple grades, and a display controller (17) configured to cause a display of an HMD (2) to display a situation of a welding operation in the virtual space at an illuminance corresponding to the adjusted transmittance. The transmittance adjuster (14) adjusts the transmittance based on a skill level of a trainee determined by a skill level determination unit (13).Type: ApplicationFiled: January 12, 2022Publication date: March 21, 2024Inventors: Yuichiro Aoyama, Yasuo Oomori, Junichi Oono, Hideaki Ogura, Hiroaki Taniyama, Akihiro Yamamoto, Hitoshi Kawasaki
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Patent number: 11933633Abstract: A point cloud data acquiring system (1) is a system which acquires, as moving, point cloud data which serves as base data for a three-dimensional map representing a traveling environment of a vehicle includes range finding part (31) which acquires point cloud data representing azimuths and distances to planimetric features configuring the traveling environment, marker detecting part (2) which detects marker (10) laid in or on a traveling road of the vehicle, and a data recording part which records point cloud data acquired by range finding part (31) as linking thereto marker reference information including positional information with reference to any marker (10).Type: GrantFiled: February 25, 2020Date of Patent: March 19, 2024Assignee: AICHI STEEL CORPORATIONInventors: Michiharu Yamamoto, Hitoshi Aoyama
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Patent number: 11921516Abstract: Provided is a driving assistance system using a magnetic marker capable of providing more pieces of information. In the driving assistance system for assisting driving of a vehicle, a magnetic marker (1) including a magnet sheet (11) serving as a magnetism generating unit which generates a magnetic field and also an RFID tag (15) as an information providing unit which provides information to a vehicle side is laid on a travelling road of the vehicle, and the vehicle includes a magnetic sensor serving as a magnetism detecting unit which magnetically detects the magnetic marker (1) and also a tag reader as an information acquiring unit which acquires the information provided by the RFID tag (15) included in the magnetic marker (1).Type: GrantFiled: March 30, 2017Date of Patent: March 5, 2024Assignee: AICHI STEEL CORPORATIONInventors: Michiharu Yamamoto, Tomohiko Nagao, Hitoshi Aoyama
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Publication number: 20240052461Abstract: According to one embodiment, a tungsten wire includes a tungsten alloy containing rhenium. The tungsten wire includes a protrusion peak density (Spd) of 7000 or more and 11000 or less as a surface roughness parameter.Type: ApplicationFiled: October 24, 2023Publication date: February 15, 2024Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.Inventors: Hitoshi AOYAMA, Hideaki BABA, Masanori MIZOBE, Kenji TOMOKIYO
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Publication number: 20240019506Abstract: A magnetic sensor includes a magneto-sensitive body whose electromagnetic properties change under an action of an external magnetic field, a coil disposed to obtain an induced voltage proportional to the external magnetic field, a sampler configured to sample the induced voltage generated in the coil and obtains a sampling voltage, and an automatic correction circuit configured to relatively adjust a rise timing of a magneto-sensitive body clock for driving the magneto-sensitive body and a rise timing of a sampler clock for driving the sampler according to the sampling voltage.Type: ApplicationFiled: December 21, 2021Publication date: January 18, 2024Inventors: Ippei AKITA, Michiharu YAMAMOTO, Hitoshi AOYAMA, Takeshi KAWANO
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Patent number: 11875675Abstract: A vehicle including a magnetic detecting part for detecting a magnetic marker disposed in a road is configured to acquire marker state information indicating the state of the magnetic marker from an external server apparatus via wireless communication and diagnose the state of the magnetic detecting part by using a result of detection of the magnetic marker in which the state of the magnetic marker indicated by the marker state information is good, thereby allowing inspection cost and cost of maintenance of the magnetic detecting part for detecting the magnetic marker to be suppressed.Type: GrantFiled: December 27, 2019Date of Patent: January 16, 2024Assignee: AICHI STEEL CORPORATIONInventors: Michiharu Yamamoto, Tomohiko Nagao, Hitoshi Aoyama
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Publication number: 20240010189Abstract: An automatic parking system which controls a vehicle so as to cause the vehicle to be moved to a parking place and accommodated in a parking frame provided in the parking place includes a route where magnetic marker is laid so as to be detectable by using a magnetic sensor array provided to the vehicle, RFID tag providing tag information capable of identifying laying position of the magnetic marker, and a control server device which identifies a vehicle position based on the laying positions of the magnetic markers, allowing highly-accurate identification of the position of the vehicle to be forwarded and allowing operation with high reliability.Type: ApplicationFiled: September 25, 2023Publication date: January 11, 2024Inventors: Michiharu YAMAMOTO, Tomohiko NAGAO, Hitoshi AOYAMA
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Publication number: 20240011231Abstract: A work system (1) including a work vehicle (11) which, as moving on a road (1R) where magnetic markers (10) are laid, detects the magnetic marker (10) to conduct work of preparation, maintenance, or management of the road (1R) has a control unit (13) which identifies a relative position of the work vehicle (11) with respect to the magnetic marker (10) and identifies a point to be worked on by the work vehicle (11) based on the relative position. With the work vehicle (11) conducting work at the point identified by the control unit (13), work regarding the traveling road where the magnetic markers are laid can be efficiently conducted.Type: ApplicationFiled: August 5, 2021Publication date: January 11, 2024Applicant: Aichi Steel CorporationInventors: Michiharu YAMAMOTO, Tomohiko NAGAO, Hitoshi AOYAMA
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Patent number: 11862014Abstract: In a magnetic marker system including a magnetic marker disposed in a travel environment so as to be detectable by a magnetic sensor attached to a vehicle and a server apparatus which acquires detection information of the magnetic marker from each vehicle, the detection information uploaded from a vehicle side to the server apparatus includes marker information, which is identification information of a corresponding magnetic marker, and the server apparatus estimates the state of the magnetic marker based on the detection information from each vehicle.Type: GrantFiled: December 27, 2019Date of Patent: January 2, 2024Assignee: AICHI STEEL CORPORATIONInventors: Michiharu Yamamoto, Tomohiko Nagao, Hitoshi Aoyama
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Publication number: 20230413672Abstract: The rhenium tungsten wire rod according to an embodiment is a wire rod made of a tungsten alloy containing rhenium, wherein a rhenium content is less than 30 wt % in any measurement area of a wire rod body where a unit area is 1 ?m in diameter.Type: ApplicationFiled: September 6, 2023Publication date: December 21, 2023Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.Inventors: Hitoshi AOYAMA, Hideaki BABA, Kenji TOMOKIYO
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Publication number: 20230366069Abstract: A tungsten wire according to an embodiment is a tungsten wire made of a W alloy containing rhenium, and includes a mixture on at least a part of a surface thereof, the mixture contains W, C, and O as constituent elements, and taking a radial cross-sectional thickness of the mixture as A mm and a diameter of the tungsten wire as B mm, an average value of a ratio A/B of A to B is 0.3% to 0.8%.Type: ApplicationFiled: July 28, 2023Publication date: November 16, 2023Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.Inventors: Hitoshi AOYAMA, Hideaki BABA, Kenji TOMOKIYO
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Patent number: 11801827Abstract: An automatic parking system which controls a vehicle so as to cause the vehicle to be moved to a parking place and accommodated in a parking frame provided in the parking place includes a route where magnetic marker is laid so as to be detectable by using a magnetic sensor array provided to the vehicle, RFID tag providing tag information capable of identifying laying position of the magnetic marker, and a control server device which identifies a vehicle position based on the laying positions of the magnetic markers, allowing highly-accurate identification of the position of the vehicle to be forwarded and allowing operation with high reliability.Type: GrantFiled: April 17, 2019Date of Patent: October 31, 2023Assignee: AICHI STEEL CORPORATIONInventors: Michiharu Yamamoto, Tomohiko Nagao, Hitoshi Aoyama
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Publication number: 20230271630Abstract: In an operation system (1) for a bus (5) including a connection point database which stores identification information of a magnetic marker (10) positioned so as to correspond to a connection point (13) between a dedicated lane (111) having magnetic markers (10) laid thereon and a general lane (112), the connection point (13) is set so as to correspond to the magnetic marker (10) according to identification information stored in a connection point database, thereby allowing flexibility in changing a route to be improved in the operation system which causes a vehicle to operate along a route defined in advance.Type: ApplicationFiled: August 5, 2021Publication date: August 31, 2023Applicant: Aichi Steel CorporationInventors: Michiharu YAMAMOTO, Tomohiko NAGAO, Hitoshi AOYAMA
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Publication number: 20230259140Abstract: In a vehicle-oriented system (1) for providing information to a vehicle (5) side by using an information providing area (11) provided on a plane where a vehicle (5) moves, a magnetic distribution indicating the information by a plurality of N-pole magnetic markers (10N) is formed in the information providing area (11), and a sign (100) for identifying a position and orientation of the information providing area (11) is provided in the information providing area (11). Therefore, information can be provided by a magnetic method irrespective of a forwarding direction of the vehicle (5).Type: ApplicationFiled: June 24, 2021Publication date: August 17, 2023Applicant: Aichi Steel CorporationInventors: Michiharu YAMAMOTO, Tomohiko NAGAO, Hitoshi AOYAMA
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Publication number: 20230250598Abstract: In a marker system (1) which includes a plurality of magnetic markers (10) disposed on a road surface for driving assist control of a vehicle (5) including automatic traveling control and in which a wireless tag is affixed to a partial magnetic marker (10A) of the plurality of magnetic markers (10), a sign (1M) for distinguishing between a partial magnetic marker (10A) with a wireless tag affixed thereto and another magnetic marker (10B) without a wireless tag affixed thereto is provided. Thus, it is possible to associate the detected magnetic marker (10) and the wireless tag as a transmission source of tag waves with each other with high reliability.Type: ApplicationFiled: June 24, 2021Publication date: August 10, 2023Applicant: Aichi Steel CorporationInventors: Michiharu YAMAMOTO, Tomohiko NAGAO, Hitoshi AOYAMA
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Patent number: 11687088Abstract: A vehicular system where a vehicle moves in a traveling area in which magnetic markers are arranged so that magnetic polarities form a predetermined pattern and a wireless tag is annexed correspondingly to some of the magnetic markers, the wireless tag outputting, by wireless communication, tag information allowing a position of the magnetic marker to be identified, includes a first position identifying part which identifies a vehicle position where the vehicle is located based on the position of the magnetic marker identified by using the tag information and a second position identifying part which identifies, on a route after the vehicle passes over the magnetic marker serving as a reference when the first position identifying part identifies the vehicle position, a magnetic marker newly detected by the vehicle based on detection history of magnetic markers and identifies the vehicle position based on the position of the identified magnetic marker.Type: GrantFiled: July 18, 2019Date of Patent: June 27, 2023Assignee: AICHI STEEL CORPORATIONInventors: Michiharu Yamamoto, Tomohiko Nagao, Hitoshi Aoyama
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Patent number: 11631111Abstract: A driving support system including an information acquiring part which acquires, from a vehicle side detecting a magnetic marker laid in a road and capable of acquiring marker identification information for identifying the magnetic marker detected, upload information including the marker identification information, an information providing part which provides the vehicle side as a transmission source of the upload information with support information, a configuration which provides information acquisition right which is a right to receive the support information to the vehicle, and a transmission source management area for registering the identification information of the vehicle as a provision destination of the support information by recording the identification information of the vehicle.Type: GrantFiled: August 30, 2021Date of Patent: April 18, 2023Assignee: AICHI STEEL CORPORATIONInventors: Michiharu Yamamoto, Tomohiko Nagao, Hitoshi Aoyama
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Publication number: 20230003530Abstract: A position estimation system for a vehicle including a magnetic sensor which measures magnetism acting from a road surface side forming a surface of a traveling road to estimate an own vehicle position includes a map DB which stores a map (1) associated with a road-surface magnetic distribution (M2), which is a distribution of quantities of magnetism at respective points on the road surface, a magnetic distribution generation part which acquires magnetic measurement values from the magnetic sensor and generates a measured magnetic distribution, which is a distribution of magnetic measurement values, and a position estimation part which specifies an area corresponding to the measured magnetic distribution in the road-surface magnetic distribution (M2) associated with the map stored in the map DB and estimates the own vehicle position based on a position of the area corresponding to the measured magnetic distribution on the map.Type: ApplicationFiled: November 20, 2020Publication date: January 5, 2023Applicant: Aichi Steel CorporationInventors: Michiharu YAMAMOTO, Hitoshi AOYAMA
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Patent number: 11543829Abstract: A work vehicle comprising: a drive wheel unit that is provided in a vehicle body and is configured to be driven by a travel drive mechanism; a work unit that is provided in the vehicle body and is configured to perform work on a work target; a battery provided in the vehicle body; a motor that is configured to receive electric power from the battery and drive the work unit; an inclination sensor configured to detect an inclination of the vehicle body relative to a horizontal plane; and a first captured image acquisition unit configured to acquire a captured image that shows surroundings of the vehicle body when the work is being performed.Type: GrantFiled: June 5, 2019Date of Patent: January 3, 2023Assignee: Kubota CorporationInventors: Takeshi Komorida, Hitoshi Aoyama, Hideya Umemoto, Katsuhiko Uemura, Kentaro Shinkai, Shinichi Yamada, Kanako Komori, Kensuke Uemoto