Patents by Inventor Wataru KURIHARA

Wataru KURIHARA 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: 20200362974
    Abstract: A capacity control valve, which can efficiently discharge a liquid refrigerant and reduce the driving force of a compressor, includes: a valve main body (10) including a first communication passage (11), a second communication passage (12), a third communication passage (13) and a main valve seat (15a); a valve body (20) including an intermediate communication passage (29), a main valve part (21c) and an auxiliary valve part (23d); a solenoid (30) which drives a rod (36) having an auxiliary valve seat (26c); a first biasing member (43) which biases the main valve part (21c) in the valve closing direction thereof; and a second biasing member (37) which biases the main valve part (21c) in the valve opening direction thereof, and the rod (36) relatively moves to the valve body (20), and opens and closes the auxiliary valve part (23d).
    Type: Application
    Filed: November 28, 2018
    Publication date: November 19, 2020
    Inventors: Masahiro HAYAMA, Yoshihiro OGAWA, Keigo SHIRAFUJI, Kohei FUKUDOME, Daichi KURIHARA, Wataru TAKAHASHI
  • Publication number: 20200355175
    Abstract: A capacity control valve (1) includes a valve main body (10) having a first communication passage (11), a second communication passage (12), a third communication passage (13), and a main valve seat (15a), a pressure-sensitive body (24), a valve element (20) having an intermediate communication passage (29), a main valve portion (21c), and a restrictor portion (25), and a solenoid (30) that drives a rod (36). The rod (36) is relatively moved with respect to the valve element (20) so as to control an opening degree of the restrictor portion (25). The capacity control valve is capable of efficiently discharging a liquid coolant irrespective of pressure of a suction chamber and improving control stability.
    Type: Application
    Filed: January 21, 2019
    Publication date: November 12, 2020
    Inventors: Masahiro HAYAMA, Yoshihiro OGAWA, Keigo SHIRAFUJI, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI
  • Publication number: 20200355282
    Abstract: A capacity control valve V includes a valve housing provided with a Pc port, a Pd port and a Ps port; a main valve body that includes a main valve portion which comes into contact with and separates from a main valve seat 10a to close and open a communication between a Pd port and the Pc port using a driving force of a solenoid; a pressure-sensitive valve capable of opening and closing, depending on a surrounding pressure, a first communication passage through which the Pc port and the Ps port are communicable with each other; and a differential pressure valve capable of opening and closing, depending on a pressure difference, a second communication passage through which the Pc port and the Ps port are communicable with each other.
    Type: Application
    Filed: January 24, 2019
    Publication date: November 12, 2020
    Inventors: Masahiro HAYAMA, Yoshihiro OGAWA, Keigo SHIRAFUJI, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI
  • Publication number: 20200332786
    Abstract: A capacity control valve (1) includes a valve main body (10) having a first communication passage (11), a second communication passage (12), a third communication passage (13), and a main valve seat (15a), a valve element (20) having an intermediate communication passage (29), a main valve portion (21c), and an auxiliary valve portion (23d), a solenoid (30) that drives a rod (36) having an auxiliary valve seat (26c), and a first biasing member (43) that biases in the valve closing direction of the main valve portion (21c). A spring constant of the first biasing member (43) has a characteristic that the spring constant is increased in an opened state of the main valve portion (21c) and decreased in a closed state. The capacity control valve can efficiently discharge a liquid coolant and lower drive force of a compressor at a liquid coolant discharging operation.
    Type: Application
    Filed: December 26, 2018
    Publication date: October 22, 2020
    Inventors: Masahiro HAYAMA, Yoshihiro OGAWA, Keigo SHIRAFUJI, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI
  • Publication number: 20200325881
    Abstract: A capacity control valve includes a valve housing having a main valve seat portion formed on an inner peripheral surface, a main valve body that has a main valve portion capable of seating on the main valve seat portion and capable of blocking communication between a discharge port and a control port depending on a driving force of a solenoid, a relief valve that is opened by pressure, a first flow channel that allows the control port and a suction port to communicate with each other when the relief valve is opened. A second flow channel formed at least partially in parallel with the first flow channel allows the control port and the suction port to communicate with each other. A spool valve body is reciprocally disposed in a sleeve and capable of adjusting an opening of the second flow channel depending on the driving force of the solenoid.
    Type: Application
    Filed: December 21, 2018
    Publication date: October 15, 2020
    Inventors: Masahiro HAYAMA, Yoshihiro OGAWA, Keigo SHIRAFUJI, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI
  • Publication number: 20200318624
    Abstract: A capacity control valve (1) includes a valve main body (10) having a first communication passage (11), a second communication passage (12), a third communication passage (13), and a main valve seat (15a), a valve element (20) having an intermediate communication passage (29), a main valve portion (21c), and an auxiliary valve portion (23d), a solenoid (30) that drives a rod (36) having an auxiliary valve seat (26c), and a first biasing member (43) that biases in the valve closing direction of the main valve portion (21c). The rod (36) is relatively moved with respect to the valve element (20) so as to open and close the auxiliary valve portion. The capacity control valve can efficiently discharge a liquid coolant irrespective of pressure of a suction chamber and lower drive force of a compressor at a liquid coolant discharging operation.
    Type: Application
    Filed: December 26, 2018
    Publication date: October 8, 2020
    Inventors: Masahiro HAYAMA, Yoshihiro OGAWA, Keigo SHIRAFUJI, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI
  • Publication number: 20200309105
    Abstract: A capacity control valve includes: a valve body (10) including first communication passages (11), second communication passages (12), third communication passages (13), and a main valve seat (15a); a valve element (21) including an intermediate communication passage (29), a main valve portion (21b), and an auxiliary valve portion 21c; a solenoid (30) that drives a rod (36) provided with an auxiliary valve seat (23c); a first biasing member (43) that biases in a valve closing direction of the main valve portion (21b); and a second biasing member (44) that biases in a valve closing direction of the auxiliary valve portion (21c), wherein the rod (36) moves relative to the valve element (21) to open and close the auxiliary valve portion (21c). The capacity control valve allows a liquid refrigerant to be efficiently discharged and allows a driving force of a compressor to be decreased.
    Type: Application
    Filed: December 13, 2018
    Publication date: October 1, 2020
    Inventors: Masahiro HAYAMA, Hiroyuki NISHINOSONO, Keigo SHIRAFUJI, Kohei FUKUDOME, Yoshihiro OGAWA, Daichi KURIHARA, Wataru TAKAHASHI
  • Patent number: 10764387
    Abstract: There is a need to acquire more reliable profile information without relying on only the personal subjective judgment on the profile information. Profile information about a dweller is automatically extracted by evaluating and comprehensively determining each of feature amounts concerning the dweller from sensing data acquired from a sensor or a usage log concerning an equipment instrument in a living space based on a criterion for the feature amounts predetermined for a profile item. The reliability of the self-reported profile information is evaluated by comparing and verifying the automatically extracted profile information with the self-reported profile information supplied by the dweller.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: September 1, 2020
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Wataru Kurihara, Takehiro Mikami
  • Publication number: 20200191139
    Abstract: Provided is A displacement control valve which includes a valve housing, a valve element constituting a main valve that contacts and separates from a main valve seat, for opening and closing communication between discharge ports and control ports by driving force of a solenoid, a pressure-sensitive valve that opens and closes according to ambient pressure, and a pressure-sensitive valve member constituting the pressure-sensitive valve together with a pressure-sensitive element. The valve element and the pressure-sensitive valve member are formed with an intermediate communicating passage which allows communication between the control ports and the suction ports by opening and closing of the pressure-sensitive valve.
    Type: Application
    Filed: December 13, 2018
    Publication date: June 18, 2020
    Inventors: Matthew R. WARREN, Ernesto Jose GUTIERREZ, Daichi KURIHARA, Takahiro EJIMA, Wataru TAKAHASHI, Kohei FUKUDOME, Masahiro HAYAMA, Yoshihiro OGAWA, Keigo SHIRAFUJI
  • Publication number: 20200174674
    Abstract: It is an object of the present invention to provide a technique capable of performing user estimation without making the user aware of it. The appliance has a first sensor input unit that inputs a plurality of control commands for controlling an operation, and estimates the user based on the control command input to the first sensor input unit and an operation feature amount at the time of inputting the control command. The first sensor input unit includes a touch panel. The operation feature amount includes an operation position of the touch panel, an electrostatic capacitance value corresponding to a pressing of the touch panel, and a time-dependent change pattern thereof.
    Type: Application
    Filed: October 8, 2019
    Publication date: June 4, 2020
    Inventors: Wataru KURIHARA, Takehiro MIKAMI
  • Publication number: 20190268425
    Abstract: There is a need to acquire more reliable profile information without relying on only the personal subjective judgment on the profile information. Profile information about a dweller is automatically extracted by evaluating and comprehensively determining each of feature amounts concerning the dweller from sensing data acquired from a sensor or a usage log concerning an equipment instrument in a living space based on a criterion for the feature amounts predetermined for a profile item. The reliability of the self-reported profile information is evaluated by comparing and verifying the automatically extracted profile information with the self-reported profile information supplied by the dweller.
    Type: Application
    Filed: February 21, 2019
    Publication date: August 29, 2019
    Applicants: RENESAS ELECTRONICS CORPORATION, RENESAS ELECTRONICS CORPORATION
    Inventors: Wataru KURIHARA, Takehiro MIKAMI