Patents by Inventor Ryosuke Wada

Ryosuke Wada 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: 12546317
    Abstract: A compressor includes a casing, a compression mechanism, and a refrigerant introduction tube. The casing includes a cylindrical portion surrounding an axis line. The compression mechanism includes a compression chamber. The compression mechanism is welded to the cylindrical portion at a first welding point. The refrigerant introduction tube is configured to guide a refrigerant to the compression chamber. The refrigerant introduction tube overlaps with the first welding point in a plan view seen along a direction in which the axis line extends.
    Type: Grant
    Filed: September 21, 2023
    Date of Patent: February 10, 2026
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Ryosuke Wada, Chihiro Endou, Yuya Sunahara, Koichi Irikawa, Emu Kato
  • Patent number: 12492699
    Abstract: A compressor includes a compression mechanism, an injection valve disposed in an injection passage, and an injection pipe to supply refrigerant to the injection passage. The injection valve includes a valve body movable along a first direction, a valve presser disposed closer to the injection pipe than the valve body to restrict movement of the valve body toward the injection pipe, and a valve seat disposed closer to a compression chamber than the valve body to restrict movement of the valve body toward the compression chamber. The valve presser has a first hole. The valve body has a second hole. A buffer space communicates with a first space that accommodates the valve body between the valve presser and the valve seat. An opening of the buffer space facing the valve body does not overlap an annular peripheral edge located around the second hole when viewed in the first direction.
    Type: Grant
    Filed: October 17, 2024
    Date of Patent: December 9, 2025
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Ryosuke Wada, Yuya Sunahara, Koichi Irikawa, Emu Kato, Haruka Hosogoe
  • Publication number: 20250043783
    Abstract: A compressor includes a compression mechanism, an injection valve disposed in an injection passage, and an injection pipe to supply refrigerant to the injection passage. The injection valve includes a valve body movable along a first direction, a valve presser disposed closer to the injection pipe than the valve body to restrict movement of the valve body toward the injection pipe, and a valve seat disposed closer to a compression chamber than the valve body to restrict movement of the valve body toward the compression chamber. The valve presser has a first hole. The valve body has a second hole. A buffer space communicates with a first space that accommodates the valve body between the valve presser and the valve seat. An opening of the buffer space facing the valve body does not overlap an annular peripheral edge located around the second hole when viewed in the first direction.
    Type: Application
    Filed: October 17, 2024
    Publication date: February 6, 2025
    Inventors: Ryosuke WADA, Yuya SUNAHARA, Koichi IRIKAWA, Emu KATO, Haruka HOSOGOE
  • Publication number: 20240011491
    Abstract: A compressor includes a casing, a compression mechanism, and a refrigerant introduction tube. The casing includes a cylindrical portion surrounding an axis line. The compression mechanism includes a compression chamber. The compression mechanism is welded to the cylindrical portion at a first welding point. The refrigerant introduction tube is configured to guide a refrigerant to the compression chamber. The refrigerant introduction tube overlaps with the first welding point in a plan view seen along a direction in which the axis line extends.
    Type: Application
    Filed: September 21, 2023
    Publication date: January 11, 2024
    Inventors: Ryosuke WADA, Chihiro ENDOU, Yuya SUNAHARA, Koichi IRIKAWA, Emu KATO
  • Patent number: 5333933
    Abstract: A seat with a trim cover assembly having plural stitches thereon, wherein the stitches are arranged in a non-parallel relation with one another on one unitary sheet of the trim cover assembly which is affixed over a cushion body. Those patterns of stitches are formed at one time by means of a multiple-needle sewing machine.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: August 2, 1994
    Assignee: Tachi-S Co. Ltd.
    Inventors: Muneharu Urai, Kazuo Katsuta, Minoru Hosoya, Tatafumi Abe, Ryosuke Wada
  • Patent number: 5193474
    Abstract: A method of feeding a unitary sheet of trim cover assembly to a multiple-needle sewing machine for creating plural stitches thereon, in which non-parallel stitches are formed among parallel stitches on the trim cover assembly by means of a guide member having a sloped portion. The sloped configuration of the guide member causes formation of sloped, folded portion in the trim cover assembly, and the trim cover assembly with such folded portion is fed to the multiple-needle sewing machine.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: March 16, 1993
    Assignee: Tachi-S Co., Ltd.
    Inventors: Muneharu Urai, Kazuo Katsuta, Minoru Hosoya, Tadafumi Abe, Ryosuke Wada