Patents by Inventor Kohei Hayama

Kohei Hayama 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: 11994120
    Abstract: A capacity control valve includes a valve housing provided with a discharge port, suction ports, a control port allowing a control fluid of a control pressure Pc to pass therethrough and a primary valve including a primary valve seat and a primary valve body driven by a solenoid and opening and closing a communication between the discharge port and the control port by the movement of the primary valve body. The capacity control valve further includes a CS valve which includes a CS valve body, a first spring urging the CS valve body in a closing direction, and a second spring urging the CS valve body in an opening direction, the control port and the suction port being opened at a valve closed position of the primary valve body, the control port and the suction port being closed at a valve opened position of the primary valve body.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: May 28, 2024
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventors: Masahiro Hayama, Kohei Fukudome, Takahiro Ejima, Daichi Kurihara, Wataru Takahashi, Keigo Shirafuji, Yoshihiro Ogawa
  • Patent number: 11988296
    Abstract: A capacity control valve includes a valve housing provided with a suction port through which a suction fluid of suction pressure passes, and a control port through which a control fluid of control pressure passes, a valve element configured to be driven by a solenoid, a spring that biases the valve element in the direction opposite to the driving direction by the solenoid, and a CS valve formed by a CS valve seat and the valve element and configured for opening and closing a communication between the control port and the suction port by movement of the valve element. The capacity control valve further includes a pressure receiving portion to which force in accordance with discharge pressure is applied in the axial direction of the valve element.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: May 21, 2024
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventors: Masahiro Hayama, Kohei Fukudome, Toshinori Kanzaki, Wataru Takahashi, Keigo Shirafuji
  • Patent number: 11927275
    Abstract: A capacity control valve includes a valve housing provided a discharge port through which a discharge fluid of discharge pressure Pd passes, a suction port through which a suction fluid of suction pressure Ps passes, and a control port through which a control fluid of control pressure Pc passes, a rod configured to be driven by a solenoid, a main valve formed by a main valve seat and a main valve element and configured for opening and closing a communication between the discharge port and the control port in accordance with a movement of the rod, and a CS valve provided between the control port and the suction port and controlled by a dynamic pressure of a fluid flowing from the discharge port to the control port at an opening state of the main valve.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: March 12, 2024
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventors: Masahiro Hayama, Kohei Fukudome, Takahiro Ejima, Wataru Takahashi, Keigo Shirafuji
  • Publication number: 20240066922
    Abstract: A tire has an outer diameter smaller than a value obtained by subtracting 4 mm from an outer diameter maximum value of new product dimensions defined by a JATMA standard or an ETRTO standard, and has a total width smaller than a value obtained by subtracting 5 mm from a maximum total width of the new product dimensions. The tire includes an outer surface including a tread surface and a pair of side surfaces. The tread surface includes an equator. Each of the side surfaces includes a maximum width position. In a normal state, a ratio of a length of the shoulder line segment to a length of the reference line segment is 85.9% or more and 89.3% or less, and a ratio of the radius of the center arc to the radius of the middle arc is 1.85 or more and 2.00 or less.
    Type: Application
    Filed: August 17, 2023
    Publication date: February 29, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Hiroyuki NAKAYAMA, Miyu OZAWA, Ryuta KITORA, Kohei HAYAMA, Shigeki NISHIJIMA, Masahiro NAGASE
  • Patent number: 11618283
    Abstract: In a tire 2, a length from a center in an axial direction of a boundary between a core 30 and an apex 32 of each bead 10 to an outer end PA of the apex 32 is not less than 10 mm and not greater than 15 mm. In a state where the tire 2 is mounted on a normal rim and an internal pressure of the tire 2 is adjusted to a normal internal pressure, a shape of a main body portion 36, of a carcass ply 34, which is located in a zone from a boundary portion between a tread 4 and each sidewall 6 to the outer end PA of each apex 32 is represented by a single circular arc, and a diameter of the circular arc is not less than 75% and not greater than 90% of a cross-sectional height of a carcass 14.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: April 4, 2023
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Junya Sueno, Kohei Hayama
  • Publication number: 20200023691
    Abstract: In a tire 2, a length from a center in an axial direction of a boundary between a core 30 and an apex 32 of each bead 10 to an outer end PA of the apex 32 is not less than 10 mm and not greater than 15 mm In a state where the tire 2 is mounted on a normal rim and an internal pressure of the tire 2 is adjusted to a normal internal pressure, a shape of a main body portion 36, of a carcass ply 34, which is located in a zone from a boundary portion between a tread 4 and each sidewall 6 to the outer end PA of each apex 32 is represented by a single circular arc, and a diameter of the circular arc is not less than 75% and not greater than 90% of a cross-sectional height of a carcass 14.
    Type: Application
    Filed: July 17, 2019
    Publication date: January 23, 2020
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Junya SUENO, Kohei HAYAMA
  • Patent number: 9399788
    Abstract: The present disclosure describes a method capable of easily and rapidly inspecting the susceptibility of bacteria or fungi to an antimicrobial drug. The inspection method of the present disclosure is a method for inspecting susceptibility of bacteria or fungi to an antimicrobial drug using a micro-device having flow channels, including: incubating a mixture of the antimicrobial drug and a suspension to be inspected in the flow channels of the micro-device; and detecting bacteria or fungi derived from the suspension to be inspected in an observation area of the flow channels of the micro-device. The detecting step can be performed by detecting an increase or decrease in the number of or a change in shape of bacteria or fungi derived from the suspension to be inspected in the observation area by a microscope or the like.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: July 26, 2016
    Assignees: Osaka University, FUKOKU Co., Ltd.
    Inventors: Yoshimi Matsumoto, Kohei Hayama, Shouichi Sakakihara, Kunihiko Nishino, Akihito Yamaguchi, Hiroyuki Noji, Ryota Iino
  • Publication number: 20140349333
    Abstract: The present invention provides a novel method capable of easily and rapidly inspecting the susceptibility of bacteria or fungi to an antimicrobial drug and an inspection system for use in the method. The inspection method of the present invention is a method for inspecting susceptibility of bacteria or fungi to an antimicrobial drug using a micro-device having a flow channel, including: an incubating step of incubating a mixture of the antimicrobial drug and a bacterial suspension to be inspected in the flow channel of the micro-device; and a detecting step of detecting bacteria or fungi derived from the bacterial suspension to be inspected in an observation area of the flow channel of the micro-device. The detecting step can be performed by detecting an increase or decrease in the number of or a change in shape of bacteria or fungi derived from the bacterial suspension to be inspected in the observation area by a microscope or the like.
    Type: Application
    Filed: August 31, 2012
    Publication date: November 27, 2014
    Applicants: OSAKA UNIVERSITY, FLUIDWARE TECHNOLOGIES INC., FUKOKU CO., LTD.
    Inventors: Yoshimi Matsumoto, Kohei Hayama, Shouichi Sakakihara, Kunihiko Nishino, Akihito Yamaguchi, Hiroyuki Noji, Ryota Iino
  • Patent number: D962853
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: September 6, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masahiro Tatsuta, Ryota Ikeda, Kohei Hayama, Yuta Sakakibara, Akiko Miura
  • Patent number: D963559
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: September 13, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masahiro Tatsuta, Ryota Ikeda, Kohei Hayama, Yuta Sakakibara, Akiko Miura
  • Patent number: D963560
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: September 13, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masahiro Tatsuta, Ryota Ikeda, Kohei Hayama, Yuta Sakakibara, Akiko Miura
  • Patent number: D963561
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: September 13, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masahiro Tatsuta, Ryota Ikeda, Kohei Hayama, Yuta Sakakibara, Akiko Miura
  • Patent number: D964261
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: September 20, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masahiro Tatsuta, Ryota Ikeda, Kohei Hayama, Yuta Sakakibara, Akiko Miura