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Hiroshi Masunaga

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  • Yokohama-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Backrest and chair
    • Patent number 11,439,239
    • Issue date Sep 13, 2022
    • Okamura Corporation
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Armrest and chair
    • Patent number 11,019,928
    • Issue date Jun 1, 2021
    • Okamura Corporation
    • Yuuichirou Takagi
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Load support structure for chair, load support body for chair, and...
    • Patent number 11,019,930
    • Issue date Jun 1, 2021
    • Okamura Corporation
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Backrest, lumbar support, chair, attachment structure for optional...
    • Patent number 10,966,530
    • Issue date Apr 6, 2021
    • Okamura Corporation
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Backrest, lumbar support, chair, attachment structure for optional...
    • Patent number 10,932,573
    • Issue date Mar 2, 2021
    • Okamura Corporation
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Armrest and chair
    • Patent number 10,932,575
    • Issue date Mar 2, 2021
    • Okamura Corporation
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Armrest and chair
    • Patent number 10,898,001
    • Issue date Jan 26, 2021
    • Okamura Corporation
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Furniture, load support member for chair, and chair
    • Patent number 10,334,953
    • Issue date Jul 2, 2019
    • Okamura Corporation
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Reaction force mechanism and chair using same
    • Patent number 10,264,886
    • Issue date Apr 23, 2019
    • Okamura Corporation
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Chair
    • Patent number 10,159,350
    • Issue date Dec 25, 2018
    • Okamura Corporation
    • Ryo Igarashi
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Height adjustment device in fixture, and armrest device for chair p...
    • Patent number 9,603,451
    • Issue date Mar 28, 2017
    • Okamura Corporation
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Chair
    • Patent number 9,578,968
    • Issue date Feb 28, 2017
    • Okamura Corporation
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Stretching structure of chair upholstery material
    • Patent number 8,777,321
    • Issue date Jul 15, 2014
    • Okamura Corporation
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Backrest device in a chair
    • Patent number 8,191,970
    • Issue date Jun 5, 2012
    • Okamura Corporation
    • Ryo Igarashi
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Chair backrest device
    • Patent number 8,172,332
    • Issue date May 8, 2012
    • Okamura Corporation
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Locking device for a movable member in a chair
    • Patent number 8,172,323
    • Issue date May 8, 2012
    • Okamura Corporation
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Chair and the structure for stretching a mesh over an element of th...
    • Patent number 7,837,272
    • Issue date Nov 23, 2010
    • Okamura Corporation
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Backrest-tilting device
    • Patent number 7,726,740
    • Issue date Jun 1, 2010
    • Okamura Corporation
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Chair
    • Patent number 7,246,859
    • Issue date Jul 24, 2007
    • Okamura Corporation
    • Ryo Igarashi
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Tilting mechanism for a chair and a chair having the same
    • Patent number 7,243,993
    • Issue date Jul 17, 2007
    • Okamura Corporation
    • Ryo Igarashi
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Tilting mechanism for a chair and chair having the same
    • Patent number 7,097,249
    • Issue date Aug 29, 2006
    • Okamura Corporation
    • Ryo Igarashi
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Backrest of a chair
    • Patent number 6,626,497
    • Issue date Sep 30, 2003
    • Okamura Corporation
    • Satoshi Nagamitsu
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Chair
    • Patent number 6,257,665
    • Issue date Jul 10, 2001
    • Okamura Corporation
    • Satoshi Nagamitsu
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

  • Information Patent Application

    CHAIR
    • Publication number 20240389755
    • Publication date Nov 28, 2024
    • Okamura Corporation
    • Hiroshi MASUNAGA
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    LOAD-SUPPORTING STRUCTURE FOR CHAIR AND CHAIR
    • Publication number 20240389756
    • Publication date Nov 28, 2024
    • OKAMURA CORPORATION
    • Hiroshi MASUNAGA
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    BACKREST AND CHAIR
    • Publication number 20210337971
    • Publication date Nov 4, 2021
    • Okamura Corporation
    • Hiroshi MASUNAGA
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    ARMREST, FURNITURE COMPONENT, AND CHAIR
    • Publication number 20190307251
    • Publication date Oct 10, 2019
    • Okamura Corporation
    • Yuuichirou TAKAGI
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    LOAD SUPPORT STRUCTURE FOR CHAIR, LOAD SUPPORT BODY FOR CHAIR, AND...
    • Publication number 20190307250
    • Publication date Oct 10, 2019
    • Okamura Corporation
    • Hiroshi MASUNAGA
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    ARMREST AND CHAIR
    • Publication number 20190298071
    • Publication date Oct 3, 2019
    • Okamura Corporation
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    BACKREST, LUMBAR SUPPORT, CHAIR, ATTACHMENT STRUCTURE FOR OPTIONAL...
    • Publication number 20190298069
    • Publication date Oct 3, 2019
    • Okamura Corporation
    • Hiroshi MASUNAGA
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    REACTION FORCE MECHANISM AND CHAIR USING SAME
    • Publication number 20180008046
    • Publication date Jan 11, 2018
    • Okamura Corporation
    • Hiroshi MASUNAGA
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    FURNITURE, LOAD SUPPORT MEMBER FOR CHAIR, AND CHAIR
    • Publication number 20170311724
    • Publication date Nov 2, 2017
    • Okamura Corporation
    • Hiroshi MASUNAGA
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    CHAIR
    • Publication number 20160220036
    • Publication date Aug 4, 2016
    • OKAMURA CORPORATION
    • Hiroshi MASUNAGA
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    CHAIR
    • Publication number 20160120320
    • Publication date May 5, 2016
    • OKAMURA CORPORATION
    • Ryo IGARASHI
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    CHAIR
    • Publication number 20160100691
    • Publication date Apr 14, 2016
    • Okamura Corporation
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    CHAIR
    • Publication number 20150265058
    • Publication date Sep 24, 2015
    • Okamura Corporation
    • Ryo Igarashi
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    HEIGHT ADJUSTMENT DEVICE IN FIXTURE, AND ARMREST DEVICE FOR CHAIR P...
    • Publication number 20150130250
    • Publication date May 14, 2015
    • OKAMURA CORPORATION
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    CHAIR WITH ARMREST
    • Publication number 20130207427
    • Publication date Aug 15, 2013
    • Okamura Corporation
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    CHAIR
    • Publication number 20130169017
    • Publication date Jul 4, 2013
    • OKAMURA CORPORATION
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    STRETCHING STRUCTURE OF CHAIR UPHOLSTERY MATERIAL
    • Publication number 20120313419
    • Publication date Dec 13, 2012
    • Okamura Corporation
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    CHAIR
    • Publication number 20110198907
    • Publication date Aug 18, 2011
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    LOCKING DEVICE FOR A MOVABLE MEMBER IN A CHAIR
    • Publication number 20100109402
    • Publication date May 6, 2010
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    CHAIR BACKREST DEVICE
    • Publication number 20100001572
    • Publication date Jan 7, 2010
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    BACKREST DEVICE IN A CHAIR
    • Publication number 20090127914
    • Publication date May 21, 2009
    • Ryo Igarashi
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    Chair and the Structure for Stretching a Mesh Over an Element of th...
    • Publication number 20080284229
    • Publication date Nov 20, 2008
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    Backrest-Tilting Device
    • Publication number 20080061614
    • Publication date Mar 13, 2008
    • Hiroshi Masunaga
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    CHAIR
    • Publication number 20060244295
    • Publication date Nov 2, 2006
    • Okamura Corporation
    • Ryo Igarashi
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    TILTING MECHANISM FOR A CHAIR AND A CHAIR HAVING THE SAME
    • Publication number 20060238009
    • Publication date Oct 26, 2006
    • Okamura Corporation
    • Ryo Igarashi
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    Chair
    • Publication number 20040017102
    • Publication date Jan 29, 2004
    • Okamura Corporation
    • Ryo Igarashi
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    Backrest of a chair
    • Publication number 20020060492
    • Publication date May 23, 2002
    • Satoshi Nagamitsu
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...