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Atsushi Chiba

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  • Saitama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for producing piston ring with recess
    • Patent number 11,047,479
    • Issue date Jun 29, 2021
    • Nippon Piston Ring Co., Ltd.
    • Kazuhiro Fujimura
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Method for producing piston ring with recess
    • Patent number 10,514,097
    • Issue date Dec 24, 2019
    • Nippon Piston Ring Co., Ltd.
    • Kazuhiro Fujimura
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Multi-piece oil ring
    • Patent number 10,330,198
    • Issue date Jun 25, 2019
    • Nippon Piston Ring Co., Ltd.
    • Atsushi Chiba
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Multi-piece oil ring
    • Patent number 10,030,772
    • Issue date Jul 24, 2018
    • Nippon Piston Ring Co., Ltd.
    • Atsushi Chiba
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston ring
    • Patent number 9,506,138
    • Issue date Nov 29, 2016
    • Nippon Piston Ring Co., Ltd.
    • Hiroyuki Sugiura
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Piston ring
    • Patent number 9,464,717
    • Issue date Oct 11, 2016
    • NIPPON PISTON RING CO., LTD.
    • Michihiro Ito
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Internal combustion engine oil ring
    • Patent number 8,820,750
    • Issue date Sep 2, 2014
    • Nippon Piston Ring Co., Ltd.
    • Atsushi Chiba
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    METHOD FOR PRODUCING PISTON RING WITH RECESS
    • Publication number 20200080638
    • Publication date Mar 12, 2020
    • Nippon Piston Ring Co., Ltd.
    • Kazuhiro FUJIMURA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    MULTI-PIECE OIL RING
    • Publication number 20180363778
    • Publication date Dec 20, 2018
    • Nippon Piston Ring Co., Ltd.
    • Atsushi Chiba
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    METHOD FOR PRODUCING PISTON RING WITH RECESS
    • Publication number 20170335965
    • Publication date Nov 23, 2017
    • Nippon Piston Ring Co., Ltd.
    • Kazuhiro Fujimura
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    PISTON RING
    • Publication number 20150225836
    • Publication date Aug 13, 2015
    • Nippon Piston Ring Co., Ltd.
    • Hiroyuki SUGIURA
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    PISTON RING
    • Publication number 20130328274
    • Publication date Dec 12, 2013
    • NIPPON PISTON RING CO., LTD
    • Hiroyuki Sugiura
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    INTERNAL COMBUSTION ENGINE OIL RING
    • Publication number 20130181410
    • Publication date Jul 18, 2013
    • NIPPON PISTON RING CO., LTD.
    • Atsushi Chiba
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    PISTON RING
    • Publication number 20130043659
    • Publication date Feb 21, 2013
    • Nippon Piston Ring Co., Ltd.
    • Michihiro Ito
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    MULTI-PIECE OIL RING
    • Publication number 20120261886
    • Publication date Oct 18, 2012
    • NIPPON PISTON RING CO., LTD.
    • Atsushi Chiba
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PISTON RING
    • Publication number 20120205876
    • Publication date Aug 16, 2012
    • NIPPON PISTON RING CO., LTD.
    • Kazuhiro Fujimura
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...