Patents by Inventor Yoshifumi KATAOKA

Yoshifumi KATAOKA 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: 10787988
    Abstract: A heat retention material cartridge fixed to a base member of a heat retention tool of a cylinder bore's bore wall for heat retention of the cylinder bore wall, which includes a thermosensitive expansion rubber, a back-side pressing member, a rectangular opening, a front-side abutting plate cooperative with the back-side pressing member for sandwiching an outer edge portion of the thermosensitive expansion rubber, and an elastic member attached member to which an elastic member is attached. A convex portion being convex toward the side of the back-side pressing member is formed in a portion of the front-side abutting plate where the outer end is not sandwiched by bendable portions. And, the outer edge portion of the thermosensitive expansion rubber is formed in such a manner that the outer end of the thermosensitive expansion rubber is positioned inside an apex of the convex portion.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: September 29, 2020
    Assignee: NICHIAS CORPORATION
    Inventors: Yoshifumi Fujita, Tatsunori Kataoka, Shin Shigeuchi
  • Patent number: 10753307
    Abstract: A heat retention material cartridge fixed to a base member of a heat retention tool of a cylinder bore's bore wall for heat retention of the cylinder bore wall, which includes a thermosensitive expansion rubber, a back-side pressing member, a rectangular opening, a front-side abutting plate cooperative with the back-side pressing member for sandwiching an outer edge portion of the thermosensitive expansion rubber, and an elastic member attached member to which an elastic member is attached. A convex portion being convex toward the side of the back-side pressing member is formed in a portion of the front-side abutting plate where the outer end is not sandwiched by bendable portions. And, the outer edge portion of the thermosensitive expansion rubber is formed in such a manner that the outer end of the thermosensitive expansion rubber is positioned inside an apex of the convex portion.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: August 25, 2020
    Assignee: NICHIAS CORPORATION
    Inventors: Yoshifumi Fujita, Tatsunori Kataoka, Shin Shigeuchi
  • Publication number: 20200063635
    Abstract: There is provided a water jacket spacer set in a groove-like coolant passage of a cylinder block of an internal combustion engine including cylinder bores and set in an entire circumferential direction or a part in a circumferential direction of the groove-like coolant passage when viewed in the circumferential direction, wherein a coolant passage opening through which coolant flowing on the rear surface side of the water jacket spacer passes to flow to an inner side of the water jacket spacer is formed on at least one place of upper portions of inter-bore portions, a guide wall for guiding the coolant is formed in a vicinity of the coolant passage opening, such that the coolant flows into the coolant passage opening; and an inclined wall is formed on the rear surface side of bore portions of a position where the coolant is supplied into the groove-like coolant passage, the inclined wall extending with an upward inclination to create a flow of the coolant toward the coolant passage opening.
    Type: Application
    Filed: February 13, 2018
    Publication date: February 27, 2020
    Inventors: Yoshifumi FUJITA, Tatsunori KATAOKA, Masayuki NAKAMURA, Takayuki SUZUKI, Tomoatsu OYASU
  • Publication number: 20200018255
    Abstract: A thermal insulator for a cylinder bore wall includes bore wall insulating sections set for each of the bore walls of the cylinder bores, and a supporting section having a shape conforming to a shape of the groove-like coolant passage in a setting position of the thermal insulator, in which each of the bore wall insulating sections includes a rubber member, a rear surface pressing member, and elastic members, a coolant passage opening through which coolant flowing on a rear surface side of the supporting section passes to flow to an inner side of the supporting section is formed on at least one place of upper portions of supporting section inter-bore portions, the supporting section has a guide wall formed in a vicinity of the coolant passage opening, and has an inclined wall formed on the rear surface side of the supporting section bore portion, and only a center or a vicinity of the center in an arc direction of each of the bore wall insulating sections is fixed to the supporting section.
    Type: Application
    Filed: February 13, 2018
    Publication date: January 16, 2020
    Inventors: Yoshifumi FUJITA, Tatsunori KATAOKA
  • Patent number: 10526951
    Abstract: A cylinder bore wall thermal insulator set in a groove-like cooling water channel of a cylinder block of an internal combustion engine including cylinder bores and for insulating all bore walls of all the cylinder bores or a part of the bore walls of all the cylinder bores includes bore wall insulating sections having an arcuate shape when viewed from above and for insulating a wall surface on the cylinder bore side of the groove-like cooling water channel and a supporting section made of synthetic resin and having a shape conforming to a shape of the groove-like cooling water channel in a setting position of the thermal insulator, the bore wall insulating sections being fixed to the supporting section. The bore wall insulating sections include rubber members, rear surface pressing members, and elastic members.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: January 7, 2020
    Assignee: NICHIAS CORPORATION
    Inventors: Yoshifumi Fujita, Tatsunori Kataoka
  • Publication number: 20190360427
    Abstract: A heat retention material cartridge fixed to a base member of a heat retention tool of a cylinder bore's bore wall for heat retention of the cylinder bore wall, which includes a thermosensitive expansion rubber, a back-side pressing member, a rectangular opening, a front-side abutting plate cooperative with the back-side pressing member for sandwiching an outer edge portion of the thermosensitive expansion rubber, and an elastic member attached member to which an elastic member is attached. A convex portion being convex toward the side of the back-side pressing member is formed in a portion of the front-side abutting plate where the outer end is not sandwiched by bendable portions. And, the outer edge portion of the thermosensitive expansion rubber is formed in such a manner that the outer end of the thermosensitive expansion rubber is positioned inside an apex of the convex portion.
    Type: Application
    Filed: February 13, 2018
    Publication date: November 28, 2019
    Inventors: Yoshifumi FUJITA, Tatsunori KATAOKA, Shin SHIGEUCHI
  • Patent number: 8593752
    Abstract: A HDD including write components configured to operate within an operating voltage range, charging circuitry comprising a charging capacitor. The charging capacitor includes a higher voltage when charged than the operating voltage range. The HDD also includes pulse circuitry configured to pulse power from the charging circuitry to the write components within the operating voltage range during a controlled shut down of the write components such that remaining data-sector bits are written during the controlled shut down.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: November 26, 2013
    Assignee: HGST Netherlands B.V.
    Inventors: Toshihisa Kiyonaga, Yasuhiro Iihara, Yoshiroh Amano, Yoshifumi Kataoka
  • Publication number: 20120087032
    Abstract: A HDD including write components configured to operate within an operating voltage range, charging circuitry comprising a charging capacitor. The charging capacitor includes a higher voltage when charged than the operating voltage range. The HDD also includes pulse circuitry configured to pulse power from the charging circuitry to the write components within the operating voltage range during a controlled shut down of the write components such that remaining data-sector bits are written during the controlled shut down.
    Type: Application
    Filed: October 8, 2010
    Publication date: April 12, 2012
    Inventors: Toshihisa KIYONAGA, Yasuhiro IIHARA, Yoshiroh AMANO, Yoshifumi KATAOKA