Patents by Inventor Yosuke Tanabe

Yosuke Tanabe 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).

  • Patent number: 12291355
    Abstract: The space structure control system includes: a space structure; an artificial satellite connected to the space structure; and a propulsion device installed on the artificial satellite and configured to control an orbit and an attitude of the artificial satellite, in which the space structure includes a film-like structure, a solar reflectance control device that controls a spatial pattern of a solar reflectance in a reflecting mirror provided in the film-like structure, and a shape retaining device that is connected to the film-like structure, the propulsion device rotates the film-like structure to generate a centrifugal force, the solar reflectance control device controls a solar reflectance in the reflecting mirror to control a solar radiation pressure to be applied to the reflecting mirror, a three-dimensional shape of the film-like structure is controlled based on the centrifugal force generated by the rotation of the film-like structure and the solar radiation pressure, and the shape of the film-like st
    Type: Grant
    Filed: February 22, 2024
    Date of Patent: May 6, 2025
    Assignee: HITACHI, LTD.
    Inventors: Makoto Ito, Tsukasa Funane, Koichi Watanabe, Yosuke Tanabe, Hisatoshi Kimura
  • Publication number: 20240144369
    Abstract: An information processing device includes an input unit for inputting a human influence parameter influenced by a human activity and a natural environment parameter influenced by non-human ecosystem and non-ecosystem activities, a computing unit that calculates a natural capital stock prediction value from the human influence parameter and the natural environment parameter, using a function representing an integration of an amount of change per unit time in natural capital stock, which has elements of internal factors that may change over time and external factors including the human influence parameter and the natural environment parameter, and an output unit for outputting the natural capital stock prediction value calculated by the computing unit.
    Type: Application
    Filed: October 25, 2023
    Publication date: May 2, 2024
    Inventors: Yosuke Tanabe, Ryuji Mine, Takeshi Kato, Koichi Watanabe, Tsukasa Funane
  • Patent number: 11482961
    Abstract: An object of the present invention is to effectively reduce vibration or noise caused by a motor. An inverter circuit 300 generates an alternating current from a direct current supplied from a direct current power supply 10 by using a plurality of IGBTs 311 which are switching elements, supplies the generated alternating current to a motor 100, and drives the motor 100. This alternating current includes a fundamental harmonic current corresponding to a rotational speed of the motor 100, and a harmonic current of a switching operation of the IGBTs 311. A controller 200 controls a second phase such that a first phase and the second phase are not superimposed on each other at a predetermined motor rotational speed, the first phase being a phase of an excitation force cyclically produced in the motor 100 by the fundamental harmonic current, and the second phase being a phase of an excitation force cyclically produced in the motor 100 by the harmonic current.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: October 25, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Katsuhiro Hoshino, Takafumi Hara, Masaru Yamasaki, Yosuke Tanabe, Masanori Watanabe
  • Patent number: 10766330
    Abstract: In an air suspension system, starting of a compressor is facilitated in a condition in which there exists a pressure difference. There is provided an air suspension system in which air compressed by a compressor is supplied to a plurality of air chambers provided between a vehicle body side and a wheel side and configured to perform vehicle height adjustment in accordance with the supply and discharge of air. The compressor has a needle connected to a piston and extending in a moving direction of the piston, and an armature reciprocating the needle in the moving direction of the piston.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: September 8, 2020
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Shinji Seto, Masaki Koyama, Shuhei Nagata, Takashi Ogawa, Yosuke Tanabe, Takahiro Suzuki, Kan Kobayashi, Naofumi Harada, Yoshinori Kawai, Tomoyuki Ri
  • Patent number: 10516604
    Abstract: A control apparatus sets, in a relay device: first control information that forwards, when a packet for flooding is received by a representative port of a trunk, the packet to a prescribed forwarding destination port and to a representative port of another trunk; second control information that executes, when the packet for flooding is received by a nonrepresentative port of the truck, forwarding of the packet to a stack link port associated with the same trunk group as the trunk of the port that received the packet for flooding, and forwarding to a nonrepresentative port of another trunk in the trunk group; and third control information that forwards, when the packet for flooding is received by the stack link port, the packet to a prescribed forwarding destination port and to a representative port of a trunk not belonging to the same trunk group.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: December 24, 2019
    Assignee: NEC Corporation
    Inventors: Yosuke Tanabe, Masanori Takashima
  • Patent number: 10488248
    Abstract: A problem of the present invention is to provide a vibration analysis program capable of analyzing bidirectional exchanges between a distribution amount and a difference amount with respect to an external system of the part in a part modeled as a finite element, in which the difference amount accumulation characteristic and the distribution amount accumulation characteristic are distributed.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: November 26, 2019
    Assignee: HITACHI, LTD.
    Inventors: Yosuke Tanabe, Masanori Watanabe, Naoki Yoneya
  • Patent number: 9671033
    Abstract: A method and apparatus for controlling a solenoid actuated inlet valve to a pump chamber of a piston pump. A control circuit energizes the solenoid to open the inlet valve in synchronism with the reciprocation of the piston and thereafter de-energize the solenoid to initiate closure of the inlet valve. The inlet valve is decelerated following de-energization of the solenoid thus effectively reducing engine noise attributable to the inlet valve.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: June 6, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Yosuke Tanabe, Donald J. McCune
  • Patent number: 9584568
    Abstract: A communication system includes: a control apparatus that sets broadcast domains or multicast domains respectively for virtual networks configured in a physical network including a forwarding node(s), and sets, in the forwarding node(s), broadcast or multicast control information, associating a packet forwarding destination and a match condition including an identifier for identifying one of the broadcast domains or multicast domains; and the forwarding node(s) that performs a broadcast or multicast using the broadcast or multicast control information.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: February 28, 2017
    Assignee: NEC CORPORATION
    Inventor: Yosuke Tanabe
  • Patent number: 9562504
    Abstract: A fuel pump for a direct injection internal combustion engine having a housing defining a pump chamber. Driven and idler toothed gears are rotatably mounted within the pump chamber so that the driven and idler gears are in mesh with each other at a predetermined location in the pump chamber. A fluid inlet is formed through the housing and open to an inlet subchamber in the pump chamber. A fluid outlet is also formed through the housing and open to an outlet subchamber in the pump chamber. A pressure relief passageway fluidly connects the inlet subchamber to the outlet subchamber and a valve is disposed in series with the pressure relief passageway. A control circuit controls the actuation of the valve to control the pump pressure at the pump outlet.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: February 7, 2017
    Assignee: Hitachi, Ltd
    Inventors: Yosuke Tanabe, Jason Abbas, George Saikalis
  • Patent number: 9309849
    Abstract: A method to reduce engine noise in a multi-cylinder direct injection internal combustion engine. The internal combustion engine includes a high pressure fuel pump having both an inlet valve fluidly connected to a fuel source and an outlet valve typically connected to a pressurized fuel rail. In order to reduce engine noise, especially at low engine speeds, the timing of the opening of either the fuel pump inlet valve or fuel pump outlet valve is varied so that it coincides with the opening of the fuel injectors.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: April 12, 2016
    Assignee: Hitachi, Ltd
    Inventors: Yosuke Tanabe, Donald J. McCune
  • Publication number: 20150103824
    Abstract: A communication system includes: a control apparatus that sets broadcast domains or multicast domains respectively for virtual networks configured in a physical network including a forwarding node(s), and sets, in the forwarding node(s), broadcast or multicast control information, associating a packet forwarding destination and a match condition including an identifier for identifying one of the broadcast domains or multicast domains; and the forwarding node(s) that performs a broadcast or multicast using the broadcast or multicast control information.
    Type: Application
    Filed: May 8, 2013
    Publication date: April 16, 2015
    Applicant: NEC Corporation
    Inventor: Yosuke Tanabe
  • Publication number: 20140314603
    Abstract: A fuel pump having a housing which defines a pump chamber with an inlet and an outlet. A piston is reciprocally mounted in the pump chamber. An inlet valve is mounted fluidly in series between the pump chamber and the housing inlet which opens and closes the inlet in synchronism with the reciprocation of the piston. A rotary valve is mounted fluidly in series with the housing outlet and the rotary outlet valve is rotatably driven in synchronism with reciprocation of the piston. The rotary valve is configured so that it is fluidly open only at one or more predetermined angular positions of the rotary outlet valve. The open and close timings of the rotary inlet and outlet valves are completely controlled by a motor in order to control the fuel pressure, especially to avoid excessive fuel compression and resulting fuel pressure fluctuation.
    Type: Application
    Filed: April 23, 2013
    Publication date: October 23, 2014
    Applicant: Hitachi. Ltd
    Inventors: Akira Inoue, Harsha Badarinarayan, Yosuke Tanabe, Masanori Watanabe
  • Publication number: 20140158205
    Abstract: A method and apparatus for controlling a solenoid actuated inlet valve to a pump chamber of a piston pump. A control circuit energizes the solenoid to open the inlet valve in synchronism with the reciprocation of the piston and thereafter de-energize the solenoid to initiate closure of the inlet valve. The inlet valve is decelerated following de-energization of the solenoid thus effectively reducing engine noise attributable to the inlet valve.
    Type: Application
    Filed: December 11, 2012
    Publication date: June 12, 2014
    Inventors: Yosuke Tanabe, Donald J. McCune
  • Publication number: 20130259044
    Abstract: Even though the number of communication terminals or that of communication services exploited by the communication terminals is increased, load imposed on a node or a controller is to be less likely to be increased, while delay in processing is to be less likely to be produced. Each node of a communication system holds a plurality of packet handling operations which correlate the forwarding destination of a packet belonging to each flow with a set of collation rules that identify each flow, and forwards the received packet in accordance with the processing rules. In case the destination address of the received packet is such address indicating that the packet is to be multicast, the node multicasts the packet using the plurality of the processing rules the node holds.
    Type: Application
    Filed: December 19, 2011
    Publication date: October 3, 2013
    Applicant: NEC CORPORATION
    Inventor: Yosuke Tanabe
  • Publication number: 20130243636
    Abstract: A fuel pump for a direct injection internal combustion engine having a housing defining a pump chamber. Driven and idler toothed gears are rotatably mounted within the pump chamber so that the driven and idler gears are in mesh with each other at a predetermined location in the pump chamber. A fluid inlet is formed through the housing and open to an inlet subchamber in the pump chamber. A fluid outlet is also formed through the housing and open to an outlet subchamber in the pump chamber. A pressure relief passageway fluidly connects the inlet subchamber to the outlet subchamber and a valve is disposed in series with the pressure relief passageway. A control circuit controls the actuation of the valve to control the pump pressure at the pump outlet.
    Type: Application
    Filed: March 19, 2012
    Publication date: September 19, 2013
    Applicant: Hitachi, Ltd
    Inventors: Yosuke Tanabe, Jason Abbas, George Saikalis
  • Patent number: 8485310
    Abstract: Silencing equipment provided with one or more flow channels through which cooling air flows has a flow channel forming member that forms the flow channel, and an acoustic absorbent member that is fixed to the flow channel forming member. A resonance type silencer is formed on a wall surface of the flow channel by providing a cavity for the resonance type silencer in the acoustic absorbent member and an aperture for the resonance type silencer in a portion of the flow channel forming member. The resonance type silencer sets a frequency of noise necessary to be reduced based on a peak frequency of noise generated by a fan. The silencing equipment further has a slide member which slides by a slide mechanism to adjust the area of the top of the aperture. The silencing equipment for electronic devices capable of cooling heat generating sections thereof with air has a small and simple structure and can improve a silencing effect by blowing air.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: July 16, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Yosuke Tanabe, Masanori Watanabe, Akira Goto, Shigeyasu Tsubaki, Masahiko Usui, Akio Idei
  • Publication number: 20130083929
    Abstract: A method for analyzing sound transmission paths in a system from a sound source to a receiver in which the all sound paths are first identified from the sound source to the receiver. These sound paths include both structure-borne sound paths and air-borne sound paths. The transfer function from each path to the receiver is measured in terms of particle velocity vector by using a particle velocity sensor or a set of sound pressures by using a microphone array. The load at each path is directly measured or indirectly estimated in the actual source operation. The load at each path is multiplied by the transfer function from the path to the receiver, which represents the contribution of the path to the response at the receiver.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 4, 2013
    Applicant: Hitachi, Ltd.
    Inventors: Akira Inoue, Yosuke Tanabe
  • Publication number: 20120245826
    Abstract: A method to reduce engine noise in a multi-cylinder direct injection internal combustion engine. The internal combustion engine includes a high pressure fuel pump having both an inlet valve fluidly connected to a fuel source and an outlet valve typically connected to a pressurized fuel rail. In order to reduce engine noise, especially at low engine speeds, the timing of the opening of either the fuel pump inlet valve or fuel pump outlet valve is varied so that it coincides with the opening of the fuel injectors.
    Type: Application
    Filed: March 23, 2011
    Publication date: September 27, 2012
    Applicant: Hitachi, Ltd
    Inventors: Yosuke Tanabe, Donald J. McCune
  • Patent number: 8091682
    Abstract: Disclosed herein is a sound absorbing system used for an electronic device that has enhanced noise reduction capabilities, while maintaining the cooling performance of the device and without increasing the size of the device. A disk array has multiple fans installed on each of the right and left sides of its front section. A frame that houses a sound absorbing system is placed in the middle of an airflow path through which air passes from the fans. Two sound absorbers are arranged inside the frame such that each of the sound absorbers faces the right-side or left-side fans. Airflow paths through which air passes from the fans are located in the space between the two sound absorbers. The airflow paths are partitioned by an acoustic board such that each of the airflow paths does not have parallel side faces. The frame, the sound absorbers, the acoustic board, and the airflow paths constitute the sound absorbing system.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: January 10, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Genta Yamauchi, Naoki Wada, Masanori Watanabe, Yosuke Tanabe, Kouichirou Kinoshita
  • Publication number: 20100307862
    Abstract: Disclosed herein is a sound absorbing system used for an electronic device that has enhanced noise reduction capabilities, while maintaining the cooling performance of the device and without increasing the size of the device. A disk array 1 has multiple fans 3 installed on each of the right and left sides of its front section. A frame 4 that houses a sound absorbing system is placed in the middle of an airflow path through which air passes from the fans 3. Two sound absorbers 5 are arranged inside the frame 4 such that each of the sound absorbers 5 faces the right-side or left-side fans 3. Airflow paths 7 through which air passes from the fans 3 are located in the space between the two sound absorbers 5. The airflow paths 7 are partitioned by an acoustic board 6 such that each of the airflow paths 7 does not have parallel side faces. The frame 4, the sound absorbers 5, the acoustic board 6, and the airflow paths 7 constitute the sound absorbing system.
    Type: Application
    Filed: March 24, 2010
    Publication date: December 9, 2010
    Inventors: Genta YAMAUCHI, Naoki Wada, Masanori Watanabe, Yosuke Tanabe, Kouichirou Kinoshita