Patents by Inventor Takeshi Yamakawa

Takeshi Yamakawa 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: 20210363655
    Abstract: A discrete metallic particle having a metallic material, and a coating covering at least a portion of the metallic component. The discrete metallic particle has a thickness from 50 nm to 1000 nm, and the discrete metallic particle has a skin depth ? of greater than or equal to 1.0 ?m in a frequency range from 20-40 GHz. The skin depth ? is calculated by: ? = 2 ? ? ? ( 2 ? ? ? ? ? f ) ? ( ? 0 ? ? r ) ? 503 ? ? ? ? r ? f Where ? is skin depth in meters (m); ? is resistivity in ohm meter (?·m); f is frequency of an electromagnetic radiation in hertz (Hz); ?0 is permeability; and ?r is relative permeability of the metallic material.
    Type: Application
    Filed: May 20, 2020
    Publication date: November 25, 2021
    Inventors: Debasish Banerjee, Songtao Wu, Naohide Uchida, Takeshi Yamakawa, Hidetaka Asano
  • Patent number: 11173922
    Abstract: Achieved is a vehicle control device capable of performing seamless automatic driving control even when an operation abnormality occurs in an operation processing unit in a vehicle control device, and improving safety. When operation processing of an actuator control command is performed by two microcomputers of microcomputers 11b and 12b in synchronization, and a monitoring circuit 11m detects an abnormality of the microcomputer 11b, a communication circuit 11c that communicates the actuator control command of the microcomputer 11b to a brake control unit 13 or the like is latched in a disabled state, and the actuator control command from an icon 12b is transmitted to the brake control unit 13 or the like via the communication circuit 12c. The disabled state of the communication circuit 11c is maintained until an IGNSW or an automatic driving SW of the vehicle toggles, and until that time, the actuator control command from the microcomputer 12b is transmitted to the brake control unit 13 or the like.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: November 16, 2021
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Hideyuki Sakamoto, Tatsuya Horiguchi, Takeshi Yamakawa
  • Publication number: 20210318536
    Abstract: An optical scanning device includes light sources, a deflector, an optical element, and light blockers. The light blockers are spaced apart in a rotation direction of the deflector. An inequality ?1<?2 is satisfied, where when viewed from the rotation axis direction, ?1 is an angle formed by a line segment connecting the end portion of a light blocker disposed most downstream in the rotation direction to a rotation axis center of the deflector and a line segment connecting the end portion of a light blocker disposed most upstream in the rotation direction to the rotation axis center, and ?2 is an angle formed by a line segment connecting an upstream end portion of one mirror surface in the rotation direction to the rotation axis center and a line segment connecting a downstream end portion of the one mirror surface in the rotation direction to the rotation axis center.
    Type: Application
    Filed: April 2, 2021
    Publication date: October 14, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Yoshinobu SAKAUE, Takeshi YAMAKAWA, Susumu NARITA, Ryo SATO
  • Publication number: 20210318416
    Abstract: A sensor includes: an emitter configured to scan a beam, as an observation wave, in a scanning direction while changing an emission direction of the beam by a predetermined angle; a controller programmed to control the emitter such that a beam width, which is an index indicating a spread of the beam in the scanning direction, is greater than the predetermined angle; and an estimator configured to estimate a representative point associated with a target object, from a plurality of observation points respectively corresponding to a plurality of the beams applied to the target object.
    Type: Application
    Filed: March 23, 2021
    Publication date: October 14, 2021
    Inventor: Takeshi YAMAKAWA
  • Publication number: 20210316723
    Abstract: An on-board sensor system includes: a first sensor configured to detect a situation around a vehicle; a second sensor having a higher angular resolution than the first sensor; an acquisition unit configured to acquire a detection result of the first sensor; and a range decision unit configured to decide, based on the detection result, an observation range to be observed by the second sensor around the vehicle.
    Type: Application
    Filed: April 5, 2021
    Publication date: October 14, 2021
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takeshi Yamakawa, Yasuo Uehara, Osamu Komeda, Kazuki Hiramoto, Kazuhiro Miyazato, Masamu Chiba, Naohide Uchida, Hideaki Sawada, Masaki Ikai
  • Publication number: 20210218148
    Abstract: A multilayer thin film that reflects an omnidirectional structural color having a reflective core layer comprising a metallic material, a second layer extending across the reflective core layer, a third layer extending across the second layer, and an outer layer extending across the third layer. The multilayer thin film reflects a single narrow band of visible light that is less than 30° measured in Lab color space when viewed from angles between 0° and 45°, and the reflective core layer has a skin depth ? of greater than or equal to 1.0 ?m in a frequency range from 20-40 GHz, as calculated by: ? = 2 ? ? ( 2 ? ? ? ? f ) ? ( ? 0 ? ? r ) ? 5 ? 0 ? 3 ? ? ? r ? f , ? is skin depth in meters (m); ? is resistivity in ohm meter (?·m); f is frequency of an electromagnetic radiation in hertz (Hz); ?0 is permeability; and ?r is relative permeability of the metallic material.
    Type: Application
    Filed: March 31, 2021
    Publication date: July 15, 2021
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Debasish Banerjee, Songtao Wu, Naohide Uchida, Takeshi Yamakawa, Hidetaka Asano
  • Publication number: 20210185795
    Abstract: An electronic control device includes a housing that stores a substrate on which an electronic component is mounted, a first capacitance unit formed between the housing and the electronic component, and a second capacitance unit formed between the housing and the substrate, in which a noise transmission path is formed between the housing and the substrate via the first capacitance unit and the second capacitance unit.
    Type: Application
    Filed: November 13, 2018
    Publication date: June 17, 2021
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Masahiro TOYAMA, Umberto PAOLETTI, Takeshi YAMAKAWA, Yoko OHKUBO, Hideyuki SAKAMOTO
  • Patent number: 10998639
    Abstract: A metallic component including a metallic material and having a skin depth ? of greater than or equal to 1.0 ?m in a frequency range from 20-40 GHz, as calculated by: ? = 2 ? ? ( 2 ? ? ? ? f ) ? ( ? 0 ? ? r ) ? 5 ? 0 ? 3 ? ? ? r ? f . In this equation, ? is skin depth in meters (m); ? is resistivity in ohm meter (?·m); f is frequency of an electromagnetic radiation in hertz (Hz); ?0 is permeability; and ?r is relative permeability of the metallic material. The metallic component may be a discrete metallic particle or a layer in a multilayer thin film.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: May 4, 2021
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Debasish Banerjee, Songtao Wu, Naohide Uchida, Takeshi Yamakawa, Hidetaka Asano
  • Patent number: 10998638
    Abstract: A metallic component including NiCr and having a skin depth ? of greater than or equal to 1.0 ?m in a frequency range from 20-40 GHz, as calculated by: ? = 2 ? ? ? ( 2 ? ? ? ? ? f ) ? ( ? 0 ? ? r ) ? 503 ? ? ? ? r ? f . In this equation, ? is skin depth in meters (m); ? is resistivity in ohm meter (?·m); f is frequency of an electromagnetic radiation in hertz (Hz); ?0 is permeability; and ?r is relative permeability of the NiCr metallic material. The metallic component may be a discrete metallic particle or a layer in a multilayer thin film.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: May 4, 2021
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Debasish Banerjee, Songtao Wu, Naohide Uchida, Takeshi Yamakawa, Hidetaka Asano
  • Publication number: 20210002881
    Abstract: According to the embodiment, a sanitary washing device includes a nozzle, a valve unit, a casing, and a toilet seat. The nozzle is configured to discharge water toward an ano-genital region of a human body. The valve unit is provided on a pipe line between a water supply source and the nozzle, and includes an electromagnetic valve. The casing stores the nozzle and the valve unit. The casing includes a low portion positioned below the toilet, and a high portion positioned backward of the low portion. A length in a vertical direction of the high portion is greater than a length in the vertical direction of the low portion. The valve unit is disposed in the low portion. A length in the vertical direction of the valve unit is less than a length in a longitudinal direction, and less than a length in a lateral direction.
    Type: Application
    Filed: June 16, 2020
    Publication date: January 7, 2021
    Inventors: Saki Yamamura, Takeshi Yamakawa, Masayuki Mochita
  • Publication number: 20210002880
    Abstract: According to the embodiment, a sanitary washing device includes a nozzle, a valve unit, a casing, a water supply hose, and a water supply connection part. The nozzle is configured to discharge water toward an ano-genital region. The valve unit is provided on a pipe line between a water supply source and the nozzle. The valve unit includes an electromagnetic valve. The water supply hose is configured to supply water from the water supply source into the casing. The water supply hose is flexible. The water supply connection part connects the water supply hose and the valve unit. The casing has a concave portion recessed upward from a bottom surface of the casing. The concave portion has an upper surface and a side surface extending from the upper surface and facing backward or sideward. The water supply connection part is provided on the side surface of the concave portion.
    Type: Application
    Filed: June 16, 2020
    Publication date: January 7, 2021
    Inventors: Saki Yamamura, Takeshi Yamakawa, Masayuki Mochita
  • Publication number: 20210002883
    Abstract: According to the embodiment, a sanitary washing device includes a nozzle, a valve unit, a casing, a water supply hose, and a water supply connection part. The nozzle is configured to discharge water toward an ano-genital region. The valve unit is provided on a pipe line between a water supply source and the nozzle. The casing stores the nozzle and the valve unit. The water supply hose is flexible and configured to supply water from the water supply source into the casing. The water supply connection part connects the water supply hose and the valve unit. The water supply connection part is open in a horizontal direction. The water supply hose is directly connected to the water supply connection part in a horizontal direction. The casing includes a hose container in which a portion of the water supply hose can be stored by bending.
    Type: Application
    Filed: June 17, 2020
    Publication date: January 7, 2021
    Inventors: Saki Yamamura, Takeshi Yamakawa, Masayuki Mochita
  • Publication number: 20210002882
    Abstract: According to the embodiment, a sanitary washing device includes a nozzle, a valve unit, a controller, and a casing. The nozzle is configured to discharge water toward an ano-genital region of a human body. The valve unit is provided on a pipe line between a water supply source and the nozzle. The valve unit includes an electromagnetic valve. The controller is configured to control operation of the nozzle and the valve unit. The casing stores the nozzle, the valve unit, and the controller. The valve unit is disposed further frontward than the controller.
    Type: Application
    Filed: June 17, 2020
    Publication date: January 7, 2021
    Inventors: Saki Yamamura, Takeshi Yamakawa, Masayuki Mochita
  • Publication number: 20210002884
    Abstract: According to the embodiment, a sanitary washing device includes a nozzle, a valve unit, a casing, and a toilet seat. The nozzle is configured to discharge water toward an ano-genital region of a human body. The valve unit is provided on a pipe line between a water supply source and the nozzle. The valve unit includes an electromagnetic valve. The casing stores the nozzle and the valve unit. The toilet seat is pivotally supported to be rotatable with respect to the casing. A heater is provided inside the toilet seat. At least a portion of the valve unit is disposed below the toilet seat.
    Type: Application
    Filed: June 17, 2020
    Publication date: January 7, 2021
    Inventors: Saki Yamamura, Takeshi Yamakawa, Masayuki Mochita
  • Publication number: 20200284946
    Abstract: Provided is a novel donor-acceptor type compound which emits light even in a solid state. The present invention provides an organic optical material comprising a complex formed from (1) a conjugated molecule having (a) at least one electron donating site, (b) at least one electron accepting site, and (c) at least one conjugated site in the same molecule and (2) a compound having a proton donating property or an electron pair accepting property, the complex having a non-covalent interaction at the electron accepting site, wherein the complex is solid at ordinary temperature; and the organic optical material has a property of emitting light having a maximum fluorescence wavelength which causes a Stokes shift having a value corresponding to 5% or more of the value of a maximum absorption wavelength from the maximum absorption wavelength toward the long wavelength side.
    Type: Application
    Filed: August 24, 2018
    Publication date: September 10, 2020
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Yoichiro KUNINOBU, Motomu KANAI, Takeshi YAMAKAWA, Yusuke YOSHIGOE, Zijia WANG, Hideo NAGASHIMA, Atsushi TAHARA
  • Publication number: 20200280136
    Abstract: A metallic component including a metallic material and having a skin depth ? of greater than or equal to 1.0 ?m in a frequency range from 20-40 GHz, as calculated by: ? = 2 ? ? ( 2 ? ? ? ? f ) ? ( ? 0 ? ? r ) ? 5 ? 0 ? 3 ? ? ? r ? f . In this equation, ? is skin depth in meters (m); ? is resistivity in ohm meter (?·m); f is frequency of an electromagnetic radiation in hertz (Hz); ?0 is permeability; and ?r is relative permeability of the metallic material. The metallic component may be a discrete metallic particle or a layer in a multilayer thin film.
    Type: Application
    Filed: May 20, 2020
    Publication date: September 3, 2020
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Debasish Banerjee, Songtao Wu, Naohide Uchida, Takeshi Yamakawa, Hidetaka Asano
  • Publication number: 20200251828
    Abstract: A metallic component including NiCr and having a skin depth ? of greater than or equal to 1.0 ?m in a frequency range from 20-40 GHz, as calculated by: ? = 2 ? ? ? ( 2 ? ? ? ? ? f ) ? ( ? 0 ? ? r ) ? 503 ? ? ? ? r ? f . In this equation, ? is skin depth in meters (m); ? is resistivity in ohm meter (?·m); f is frequency of an electromagnetic radiation in hertz (Hz); ?0 is permeability; and ?r is relative permeability of the NiCr metallic material. The metallic component may be a discrete metallic particle or a layer in a multilayer thin film.
    Type: Application
    Filed: January 31, 2019
    Publication date: August 6, 2020
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Debasish Banerjee, Songtao Wu, Naohide Uchida, Takeshi Yamakawa, Hidetaka Asano
  • Patent number: 10724221
    Abstract: According to one embodiment, a sanitary washing device includes a nozzle being capable of discharging water toward a human body private part, a solenoid valve provided on a water channel between a water supply source and the nozzle, the solenoid valve opening and shutting the water channel, and a pressure regulator valve provided on the water channel between the solenoid valve and the nozzle, the pressure regulator valve regulating a pressure of water flowing through the water channel. At least a portion of the pressure regulator valve is disposed in a range to which the solenoid valve is projected from upward to downward.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: July 28, 2020
    Assignee: TOTO LTD.
    Inventors: Takakuni Yoshida, Masayuki Mochita, Yoshihiro Koto, Takeshi Yamakawa
  • Publication number: 20200149774
    Abstract: Provided is an air conditioning apparatus capable of sufficiently raising the temperature of hot air to be blown out when receiving a request for high-temperature air temporarily raising the temperature of the hot air. A first use side unit includes a first use side heat exchanger and a first use side fan. A second use side unit includes a second use side heat exchanger and a second use side fan. When the first use side unit receives a request for the high-temperature air and the second use side unit receives no request for the high-temperature air, the air conditioning apparatus shifts to a mode that performs control so as to reduce the airflow volume of the second use side fan or make the airflow volume of the second use side fan zero such as reducing the number of revolutions of the second use side fan in another room by 40 rpm in step (S7).
    Type: Application
    Filed: July 25, 2018
    Publication date: May 14, 2020
    Inventors: Akihiro NAKANO, Takeshi YAMAKAWA
  • Publication number: 20200139982
    Abstract: Achieved is a vehicle control device capable of performing seamless automatic driving control even when an operation abnormality occurs in an operation processing unit in a vehicle control device, and improving safety. When operation processing of an actuator control command is performed by two microcomputers of microcomputers 11b and 12b in synchronization, and a monitoring circuit 11m detects an abnormality of the microcomputer 11b, a communication circuit 11c that communicates the actuator control command of the microcomputer 11b to a brake control unit 13 or the like is latched in a disabled state, and the actuator control command from an icon 12b is transmitted to the brake control unit 13 or the like via the communication circuit 12c. The disabled state of the communication circuit 11c is maintained until an IGNSW or an automatic driving SW of the vehicle toggles, and until that time, the actuator control command from the microcomputer 12b is transmitted to the brake control unit 13 or the like.
    Type: Application
    Filed: March 29, 2018
    Publication date: May 7, 2020
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Hideyuki SAKAMOTO, Tatsuya HORIGUCHI, Takeshi YAMAKAWA