Patents by Inventor Naonari Tanigawa

Naonari Tanigawa 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: 9808894
    Abstract: A swash plate fulfils the basic properties required for a swash plate, which are stable boundary lubricating state by lubricating oil, without forming a metal spray coating layer comprising a copper type or aluminum type material on the surface of a substrate 3a forming the swash plate 3 of the swash plate type compressor as an intermediate layer. The substrate 3a of the swash plate 3 comprises a disk-shaped steel sheet formed by pressing a rolled steel sheet into a disk shape, and both surfaces of the disk-shaped steel sheet are ground. Thus, resin coating layers 10 containing fluororesin, which has superior seizure resistance, can be strongly fixed to the substrate without the need to form a metal spray coating layer on the surface of the substrate. This improves the durability of the swash plate type compressor using carbon dioxide gas as a refrigerant.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: November 7, 2017
    Assignee: NTN Corporation
    Inventors: Naonari Tanigawa, Yoshio Oki
  • Patent number: 9810260
    Abstract: A bearing device for a beauty and health roller which presents no risk of bathwater or bathtub contamination, is hygienic, is less heavy than conventional ball bearings, is devoid of roller rattle, and exhibits a small rotational resistance of the rollers. The bearing device for a beauty and health roller is used in a beauty and health roller having a grippable body and a roller arranged at the end portion of the body, and rotatably supports the roller on a supporting shaft provided to the end portion of the body. The bearing device comprises a radial bearing 5 into which the supporting shaft is fitted and which rotatably supports the roller on the supporting shaft 2a.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: November 7, 2017
    Assignees: NTN CORPORATION, MTG CO., LTD
    Inventors: Naonari Tanigawa, Tsuyoshi Matsushita
  • Patent number: 9422927
    Abstract: A swash plate, for a swash plate compressor, which is excellent in resistance to the occurrence of seizing in a condition where an extreme pressure is generated owing to local contact between the swash plate and a shoe which slides thereon and in a condition where lubricating oil is depleted, capable of preventing cavitation-caused erosion of a resin film when the swash plate is operated at a high surface pressure and a high speed in the presence of the lubricating oil and the swash plate compressor having the swash plate. A swash plate (3) for a swash plate compressor is so constructed that inside a housing (1) where a refrigerant is present, the refrigerant is compressed and expanded by converting a rotational motion of the swash plate (3) mounted perpendicularly and obliquely on a rotational shaft (2).
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: August 23, 2016
    Assignee: NTN CORPORATION
    Inventors: Naonari Tanigawa, Yoshio Oki, Norikazu Muneda
  • Publication number: 20140215821
    Abstract: A swash plate fulfils the basic properties required for a swash plate, which are stable boundary lubricating state by lubricating oil, without forming a metal spray coating layer comprising a copper type or aluminum type material on the surface of a substrate 3a forming the swash plate 3 of the swash plate type compressor as an intermediate layer. The substrate 3a of the swash plate 3 comprises a disk-shaped steel sheet formed by pressing a rolled steel sheet into a disk shape, and both surfaces of the disk-shaped steel sheet are ground. Thus, resin coating layers 10 containing fluororesin, which has superior seizure resistance, can be strongly fixed to the substrate without the need to form a metal spray coating layer on the surface of the substrate. This improves the durability of the swash plate type compressor using carbon dioxide gas as a refrigerant.
    Type: Application
    Filed: April 14, 2014
    Publication date: August 7, 2014
    Applicant: NTN CORPORATION
    Inventors: Naonari TANIGAWA, Yoshio OKI
  • Publication number: 20130245509
    Abstract: Provided is a bearing device for a beauty/health roller which presents no risk of bathwater or bathtub contamination, is hygienic, is less heavy than conventional ball bearings, is devoid of roller rattle, and exhibits a small rotational resistance of the rollers, and to provide the beauty/health roller having this bearing device. A bearing device 4 for a beauty/health roller is used in a beauty/health roller having a grippable body and a roller 3 arranged at the end portion of the body, and rotatably supports the roller 3 on a supporting shaft 2a provided to the end portion of the body. The bearing device comprises a radial bearing 5 into which the supporting shaft 2a is fitted and which rotatably supports the roller 3 on the supporting shaft 2a; a thrust bearing 6 arranged toward one end face of the radial bearing 5; and a preload-applying member 7 interposed between the radial bearing 5 and the thrust bearing 6.
    Type: Application
    Filed: September 30, 2011
    Publication date: September 19, 2013
    Applicants: MTG CO., LTD., NTN CORPORATION
    Inventors: Naonari Tanigawa, Tsuyoshi Matsushita
  • Publication number: 20130174724
    Abstract: The present invention provides a swash plate, for a swash plate compressor, which is excellent in a resistance to the occurrence of seizing in a condition where an extreme pressure is generated owing to local contact between the swash plate and a shoe which slides thereon and in a condition where lubricating oil is depleted, capable of preventing cavitation-caused erosion of a resin film when the swash plate is operated at a high surface pressure and a high speed in the presence of the lubricating oil and the swash plate compressor having the swash plate.
    Type: Application
    Filed: September 21, 2011
    Publication date: July 11, 2013
    Applicant: NTN CORPORATION
    Inventors: Naonari Tanigawa, Yoshio Oki, Norikazu Muneda
  • Publication number: 20100316517
    Abstract: The object of the present invention is to provide a swash plate which fulfils the basic properties required for a swash plate, which are stable boundary lubricating state by lubricating oil, without forming a metal spray coating layer comprising a copper type or aluminum type material on the surface of the substrate 3a forming the swash plate 3 of the swash plate type compressor as an intermediate layer. The substrate 3a of the swash plate 3 comprises a disk-shaped steel sheet formed by pressing a rolled steel sheet into a disk shape, and both surfaces of the disk-shaped steel sheet is ground. Thus, resin coating layers 10 containing fluororesin, which has superior seizure resistance, can be strongly fixed to the substrate without the need to form a metal spray coating layer on the surface of the substrate. This improves the durability of the swash plate type compressor using carbon dioxide gas as a refrigerant.
    Type: Application
    Filed: February 27, 2009
    Publication date: December 16, 2010
    Inventors: Naonari Tanigawa, Yoshio Oki
  • Patent number: 6020417
    Abstract: An object is to provide sheet feed members for use e.g. in a copying machine which make it possible to reduce the size of the copier and increase its operating speed, while satisfying all the other requirements expected for sheet feed members of this type. The sheet feed members are formed from a fluorocarbon resin.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: February 1, 2000
    Assignee: NTN Corporation
    Inventors: Noboru Umemoto, Naonari Tanigawa, Tomomi Nakamichi, Masaaki Ohashi