Patents by Inventor Yoshihiro Ogawa

Yoshihiro Ogawa 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: 11156301
    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: Grant
    Filed: January 24, 2019
    Date of Patent: October 26, 2021
    Inventors: Masahiro Hayama, Yoshihiro Ogawa, Keigo Shirafuji, Kohei Fukudome, Takahiro Ejima, Daichi Kurihara, Wataru Takahashi
  • Publication number: 20210309448
    Abstract: A bag material has a tubular shape and can be folded back at an intermediate position in a longitudinal direction. Crushed stones can be stored in a folded part of the back material. An opening on one side of the bag material can be moved to a position close to an opening on the other side of the bag material. A one-side closing rope that closes the opening on the one side of the bag material is provided near this opening. An other-side closing rope that closes the opening on the other side of the bag material is provided near this opening. The other of the one-side closing rope and the other-side closing ropes can be released with the opening closed by one closing rope.
    Type: Application
    Filed: July 31, 2018
    Publication date: October 7, 2021
    Inventors: Koji KAJIWARA, Hironori KAWAMURA, Yoshihiro OGAWA, Shigeru MATSUO
  • Publication number: 20210285589
    Abstract: A metal diaphragm damper which is resistant to breakage even if repeated stress is applied is provided. The metal diaphragm damper includes a diaphragm that is disk shaped and has a gas enclosed therein the diaphragm has a deforming action part in a center and an outer periphery fixing part on an outer periphery, the deforming action part is formed into a shape curved toward an exterior of the diaphragm, a folded part is formed in a connecting portion of the deforming action part and the outer periphery fixing part and is opened to an inner diameter side, and the folded part is movable in a radial direction.
    Type: Application
    Filed: September 12, 2017
    Publication date: September 16, 2021
    Inventors: Toshiaki IWA, Yoshihiro OGAWA, Yusuke SATO
  • Publication number: 20210246860
    Abstract: A structure for attaching a metal diaphragm damper, includes a housing, a housing cover that cooperates with the housing to define a space, and a pair of diaphragms each formed in a disk shape, the pair of diaphragms having weld portions on an outer periphery side thereof, the weld portions being welded to each other in an annular shape to form the metal diaphragm damper of which inside is filled with gas, the metal diaphragm damper being attached to the housing and the housing cover so as to be disposed in the space between the housing and the housing cover. The pair of diaphragms is provided with outer peripheral portions on the outer peripheral side of the welded portions, and the outer peripheral portions of the pair of diaphragms are held by the housing and the housing cover in a thickness direction of the pair of diaphragms.
    Type: Application
    Filed: May 17, 2019
    Publication date: August 12, 2021
    Inventors: Toshiaki IWA, Yoshihiro OGAWA, Yusuke SATO
  • Publication number: 20210239080
    Abstract: A damper device includes at least a diaphragm, an opposite member that faces the diaphragm and is connected to the diaphragm in a hermetically sealed state over a circumferential direction, and a deformation-suppressing member that is disposed in a hermetically sealed space defined by the diaphragm and the opposite member. The deformation-suppressing member includes a central portion that includes a concave surface of which a depth is increased toward a center in a radial direction thereof, and protruding portions that are provided closer to an outer peripheral side than the central portion.
    Type: Application
    Filed: May 17, 2019
    Publication date: August 5, 2021
    Inventors: Yusuke SATO, Toshiaki IWA, Yoshihiro OGAWA
  • Publication number: 20210231088
    Abstract: A damper device arranged in a housing space formed between a device main body and a cover member includes a pair of damper bodies each having a plate and a diaphragm and having an enclosed space sealed with gas. A biasing device is provided between the pair of damper bodies arranged facing each other and configured to bias the damper bodies from one side of the device main body and the cover member to the other side of the device main body and the cover member, stay members each extending from an outer peripheral edge portion of each of the damper bodies and brought into contact with other side, and a frame member arranged on one side of the device main body and the cover member and having a stopper portion configured to restrict movement of the damper bodies in the direction of the other side.
    Type: Application
    Filed: May 17, 2019
    Publication date: July 29, 2021
    Inventors: Toshiaki IWA, Yoshihiro OGAWA, Yusuke SATO, Tatsumi OGURI, Yusuke KONDO, Keigo OHATA
  • Patent number: 11053933
    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: Grant
    Filed: December 13, 2018
    Date of Patent: July 6, 2021
    Inventors: Matthew R. Warren, Ernesto Jose Gutierrez, Daichi Kurihara, Takahiro Ejima, Wataru Takahashi, Kohei Fukudome, Masahiro Hayama, Yoshihiro Ogawa, Keigo Shirafuji
  • Publication number: 20210190228
    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), and a solenoid (30) having a plunger (35) that drives a first rod (136) and a second rod (36). The first rod (136) opens and closes the main valve portion (21c), and the second rod (36) opens and closes the auxiliary valve portion. The capacity control valve is capable of efficiently discharging a liquid coolant irrespective of pressure of a suction chamber and lowering drive force of a compressor at a liquid coolant discharging operation.
    Type: Application
    Filed: January 21, 2019
    Publication date: June 24, 2021
    Inventors: Masahiro HAYAMA, Yoshihiro OGAWA, Keigo SHIRAFUJI, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI
  • Publication number: 20210180715
    Abstract: A capacity control valve includes a valve housing provided with a main valve seat; a main valve body that is inserted into the valve housing and includes a main valve portion which is capable of seating on the main valve seat 10a to open and close a communication between a suction port and a control port using a driving force of a solenoid; and a pressure-sensitive body that applies a biasing force to the main valve body in an opening direction according to pressure of a fluid surrounding the pressure-sensitive body. The fluid is supplied from the control port to around the pressure-sensitive body, and the fluid is supplied from the suction port to a back pressure side of the main valve body.
    Type: Application
    Filed: December 26, 2018
    Publication date: June 17, 2021
    Inventors: Masahiro HAYAMA, Yoshihiro OGAWA, Keigo SHIRAFUJI, Kohei FUKUDOME, Wataru TAKAHASHI
  • Publication number: 20210164430
    Abstract: There is provided a damper unit that allows a plurality of damper bodies to be installed by simple work. The damper unit includes at least two damper bodies that are installed in a housing space so as to be stacked and include hermetically sealed spaces therein. The damper unit further an elastic member 7 that is disposed between the damper bodies, and a stopper that is installed across outer peripheral edge portions of the damper bodies positioned at both ends.
    Type: Application
    Filed: May 17, 2019
    Publication date: June 3, 2021
    Inventors: Yusuke SATO, Toshiaki IWA, Yoshihiro OGAWA
  • Publication number: 20210131413
    Abstract: A capacity control valve includes a CS valve which opens and closes a communication between the control fluid and the suction fluid by the movement of rods and an urging member configured to urge the primary valve body and the rods in opposite directions and the primary valve body and the rods are disposed so as to be relatively movable in an axial direction.
    Type: Application
    Filed: July 9, 2019
    Publication date: May 6, 2021
    Inventors: Masahiro HAYAMA, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI, Keigo SHIRAFUJI, Yoshihiro OGAWA
  • Publication number: 20210123422
    Abstract: A capacity control valve includes a valve housing provided with a discharge port, suction ports, a control port and a primary valve driven by a solenoid. The capacity control valve further includes a differential CS valve which includes a differential CS valve body disposed so as to be relatively movable in an axial direction with respect to the primary valve bodies. The differential CS valve body divides a control pressure chamber into a discharge side control chamber communicating with the first control port and a suction side control chamber communicating with the second control port in the axial direction and operates the differential CS valve body by a differential pressure between the discharge side control chamber and the suction side control chamber so as to open the second control port and the suction port.
    Type: Application
    Filed: July 9, 2019
    Publication date: April 29, 2021
    Inventors: Masahiro HAYAMA, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI, Keigo SHIRAFUJI, Yoshihiro OGAWA
  • Publication number: 20210123423
    Abstract: A capacity control valve includes a valve housing provided with a discharge port, suction ports, and a control port and a primary valve including a primary valve seat and a primary valve body driven by a solenoid, the primary valve being configured to open and close a communication between the discharge port and the control port in accordance with a movement of the primary valve body. The capacity control valve further includes a differential CS valve which is openable and closable by a pressure difference between the control pressure Pc and the suction pressure Ps and an electromagnetic CS valve that is openable and closable so as to close the control port and the suction port in a non-energized state of the solenoid 80 in accordance with the movement of the primary valve body.
    Type: Application
    Filed: July 9, 2019
    Publication date: April 29, 2021
    Inventors: Masahiro HAYAMA, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI, Keigo SHIRAFUJI, Yoshihiro OGAWA
  • Publication number: 20210071628
    Abstract: There is provided a damper device that can be held in a housing space with simple work. A damper device, which is disposed and used in a housing space formed in a device unit, includes: a damper body that is filled with gas and includes a diaphragm provided with a deformable-action portion formed at a central portion thereof; and an annular clip that holds an outer peripheral edge portion of the damper body and causes a biasing force to act on an inner wall of a cover member, which forms the housing space, in a radial direction.
    Type: Application
    Filed: May 22, 2019
    Publication date: March 11, 2021
    Inventors: Toshiaki IWA, Yoshihiro OGAWA, Yusuke SATO, Koji SATO, Takayuki KONDO
  • Publication number: 20210056241
    Abstract: An acceptance unit accepts architecture information, a processing program, and a constraint condition. An objective function generation unit generates an objective function about an evaluation item of each constituent element indicated by the architecture information. An optimization unit solves an optimization problem of the objective function once or more to obtain one partitioning solution or more about the one constituent element or more and the one subroutine or more. A margin degree calculation unit calculates, concerning an evaluation item of each constituent element, a margin degree of each constituent element based on the one partitioning solution or more and the constraint condition. A change determination unit determines whether or not each constituent element needs to be changed, based on the margin degree of the constituent element. A change unit changes the architecture information about each constituent element that needs to be changed.
    Type: Application
    Filed: March 6, 2018
    Publication date: February 25, 2021
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Koki MURANO, Ryo YAMAMOTO, Fumitoshi KARUBE, Yoshihiro OGAWA
  • Publication number: 20210033082
    Abstract: A capacity control valve includes: a valve housing having a Pc port, a Ps port and a Pd port; a main valve element which includes a main valve portion coming contacting and separating from a main valve seat opening and closing communication between the Pd port and the Pc port by a drive force of a solenoid; an intermediate communication path communicating the Pc port with the Ps port; and a pressure-sensitive valve opening and closing the intermediate communication path by an ambient pressure, in which the valve housing have a differential pressure valve housed therein, the differential pressure valve including a differential pressure valve element and opening and closing a communication between the Pc port and the Ps port by the differential pressure valve element moved by an operation force of an operation member operated by a discharge pressure Pd from the Pd port.
    Type: Application
    Filed: February 14, 2019
    Publication date: February 4, 2021
    Inventors: Masahiro HAYAMA, Yoshihiro OGAWA, Keigo SHIRAFUJI, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI
  • Publication number: 20210033081
    Abstract: A capacity control valve includes: housing with a Pc port, a Pd port, a first Ps port and a second Ps port; a main valve element having a main valve portion adapted to contact with and separate from a main valve seat to close and open a communication between the Pd port and the Pc port by a drive force of a solenoid; an intermediate communication path communicating with the Pc port and the first Ps port; a pressure-sensitive valve configured to open and close the intermediate communication path by an ambient pressure; and a differential pressure valve including a differential pressure valve element configured to open and close a communication between the Pc port and the second Ps port and a communication between the Pc port and a pressure-sensitive chamber by the differential pressure valve element moved by a pressure.
    Type: Application
    Filed: February 14, 2019
    Publication date: February 4, 2021
    Inventors: Masahiro HAYAMA, Yoshihiro OGAWA, Keigo SHIRAFUJI, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI
  • Patent number: 10883462
    Abstract: A damper device is provided in a flow passage of a fluid. The damper device includes a plurality of diaphragm dampers that are stacked together. Each of the plurality of diaphragm dampers includes a first flexible portion, a second flexible portion, and a rim including a welded portion. A peripheral edge of the first flexible portion and a peripheral edge of the second flexible portion are welded together in the welded portion. Each of the plurality of diaphragm dampers is configured to seal a gas in an inner region between the first flexible portion and the second flexible portion. A coupler that couples the plurality of diaphragm dampers together includes holders that hold the rims of the plurality of diaphragm dampers. A gap is provided between the holder of the coupler and the welded portion of each of the plurality of diaphragm dampers.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: January 5, 2021
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION, EAGLE INDUSTRY CO., LTD.
    Inventors: Takeyuki Yabuuchi, Shinichi Sugimoto, Osamu Hishinuma, Hiroatsu Yamada, Toshiaki Iwa, Yoshihiro Ogawa, Yusuke Sato
  • Publication number: 20200400134
    Abstract: A capacity control valve for controlling a capacity of a fluid includes: a valve housing; a main valve closing and opening a communication between a Pc port and a Pd port when a main valve portion of a main valve element driven by a drive force of a solenoid comes into contact with and separates from a main valve seat; a pressure-sensitive valve which is opened by an ambient pressure; a hollow tube member which forms a part of the pressure-sensitive valve and allows the Pc port to communicate with a Ps port through a hollow communication path formed therein when the pressure-sensitive valve is opened; and an auxiliary communication path which allows the Pc port to communicate with the Ps port independently of the pressure-sensitive valve, in which the auxiliary communication path is configured to be able to increase a flow path cross-sectional area after the main valve is closed.
    Type: Application
    Filed: February 26, 2019
    Publication date: December 24, 2020
    Inventors: Daichi KURIHARA, Yoshihiro OGAWA, Keigo SHIRAFUJI, Kohei FUKUDOME, Masahiro HAYAMA, Takahiro EJIMA, Wataru TAKAHASHI
  • Publication number: 20200387467
    Abstract: An output determination circuit is fabricated by a hard-wired scheme to execute an instruction via hardware connection. The output determination circuit determines an output signal of a Field Programmable Gate Array (FPGA) which operates according to logic information. The output determination circuit comprises a majority decision circuit. The majority decision circuit is connected to outputs of a plurality of FPGAs which perform the same operation. The majority decision circuit performs majority decision on the outputs of the plurality of FPGAs to determine outputs from the plurality of FPGAs as an output signal. The majority decision circuit is constituted of only logic operation elements.
    Type: Application
    Filed: February 28, 2018
    Publication date: December 10, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hirohide NOZAKI, Yoshihiro OGAWA