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Ryunosuke KUMAGAI

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Patents Grantslast 30 patents

  • Information Patent Grant

    Impact tool
    • Patent number 12,064,853
    • Issue date Aug 20, 2024
    • Makita Corporation
    • Ryunosuke Kumagai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Power tool
    • Patent number 11,407,091
    • Issue date Aug 9, 2022
    • Makita Corporation
    • Ryunosuke Kumagai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Electric working machine and method of controlling rotational state...
    • Patent number 11,247,323
    • Issue date Feb 15, 2022
    • Makita Corporation
    • Ryunosuke Kumagai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Tool holding apparatus and power tool, and impact tool
    • Patent number 11,192,223
    • Issue date Dec 7, 2021
    • Makita Corporation
    • Ryunosuke Kumagai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Impact tool
    • Patent number 11,045,926
    • Issue date Jun 29, 2021
    • Makita Corporation
    • Ryunosuke Kumagai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Electric tool
    • Patent number 10,994,404
    • Issue date May 4, 2021
    • Makita Corporation
    • Miyabi Ito
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Impact tool
    • Patent number 10,967,496
    • Issue date Apr 6, 2021
    • Makita Corporation
    • Ryunosuke Kumagai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Power tool
    • Patent number 10,906,163
    • Issue date Feb 2, 2021
    • Makita Corporation
    • Hidenori Nagasaka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Power tool
    • Patent number 10,821,577
    • Issue date Nov 3, 2020
    • Makita Corporation
    • Ryunosuke Kumagai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Electric working machine
    • Patent number 10,491,148
    • Issue date Nov 26, 2019
    • Makita Corporation
    • Yoshitaka Ichikawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Power tool
    • Patent number 10,478,950
    • Issue date Nov 19, 2019
    • Makita Corporation
    • Hidenori Nagasaka
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Rotary impact tool
    • Patent number 10,343,268
    • Issue date Jul 9, 2019
    • Makita Corporation
    • Tokuo Hirabayashi
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Electric power tool
    • Patent number 10,322,498
    • Issue date Jun 18, 2019
    • Makita Corporation
    • Goshi Ishikawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Impact tool
    • Patent number 10,213,907
    • Issue date Feb 26, 2019
    • Makita Corporation
    • Ryunosuke Kumagai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Impact tool
    • Patent number 10,213,912
    • Issue date Feb 26, 2019
    • Makita Corporation
    • Ryunosuke Kumagai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Electric tool
    • Patent number 10,155,304
    • Issue date Dec 18, 2018
    • Makita Corporation
    • Miyabi Ito
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Electric power tool
    • Patent number 9,676,092
    • Issue date Jun 13, 2017
    • Makita Corporation
    • Ryunosuke Kumagai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Impact tool
    • Patent number 9,643,300
    • Issue date May 9, 2017
    • Makita Corporation
    • Ryunosuke Kumagai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Electric tool
    • Patent number 9,630,310
    • Issue date Apr 25, 2017
    • Makita Corporation
    • Miyabi Ito
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Rechargeable electric tool
    • Patent number 9,463,565
    • Issue date Oct 11, 2016
    • Makita Corporation
    • Hidenori Nagasaka
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Electric power tool suspending attachment and electric power tool e...
    • Patent number 9,016,397
    • Issue date Apr 28, 2015
    • Makita Corporation
    • Takao Kuroyanagi
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Electric tools
    • Patent number 8,952,581
    • Issue date Feb 10, 2015
    • Makita Corporation
    • Akira Naito
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Impact tool
    • Patent number 8,827,003
    • Issue date Sep 9, 2014
    • Makita Corporation
    • Hidenori Nagasaka
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Rechargeable electric tool
    • Patent number 8,733,471
    • Issue date May 27, 2014
    • Makita Corporation
    • Hidenori Nagasaka
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Rechargeable electric tool
    • Patent number 8,708,063
    • Issue date Apr 29, 2014
    • Makita Corporation
    • Hidenori Nagasaka
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Impact tool with a protecting cover
    • Patent number 8,607,893
    • Issue date Dec 17, 2013
    • Makita Corporation
    • Ryunosuke Kumagai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Hook for electric power tools and electric power tool equipped with...
    • Patent number 8,573,322
    • Issue date Nov 5, 2013
    • Makita Corporation
    • Hidenori Nagasaka
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Electric wheeled apparatus powered by battery packs
    • Patent number 8,490,732
    • Issue date Jul 23, 2013
    • Makita Corporation
    • Manabu Sugimoto
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Hook for electric power tool and rechargeable electric power tool e...
    • Patent number 8,443,913
    • Issue date May 21, 2013
    • Makita Corporation
    • Hidenori Nagasaka
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Portable electric driver
    • Patent number D679160
    • Issue date Apr 2, 2013
    • Makita Corporation
    • Shinsuke Okuda
    • D08 - Tools and hardware

Patents Applicationslast 30 patents

  • Information Patent Application

    POWER TOOL HAVING A MANUALLY-MOVABLE SLEEVE FOR RETAINING A BIT
    • Publication number 20240359298
    • Publication date Oct 31, 2024
    • MAKITA CORPORATION
    • Ryunosuke KUMAGAI
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    IMPACT TOOL
    • Publication number 20240139915
    • Publication date May 2, 2024
    • MAKITA CORPORATION
    • Ryunosuke KUMAGAI
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    TOOL HOLDING APPARATUS AND POWER TOOL, AND IMPACT TOOL
    • Publication number 20220055191
    • Publication date Feb 24, 2022
    • MAKITA CORPORATION
    • Ryunosuke KUMAGAI
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    IMPACT TOOL
    • Publication number 20210276164
    • Publication date Sep 9, 2021
    • MAKITA CORPORATION
    • Ryunosuke KUMAGAI
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    POWER TOOL
    • Publication number 20210016420
    • Publication date Jan 21, 2021
    • MAKITA CORPORATION
    • Ryunosuke KUMAGAI
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    POWER TOOL
    • Publication number 20200047319
    • Publication date Feb 13, 2020
    • MAKITA CORPORATION
    • Hidenori NAGASAKA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    TOOL HOLDING APPARATUS AND POWER TOOL, AND IMPACT TOOL
    • Publication number 20200009709
    • Publication date Jan 9, 2020
    • MAKITA CORPORATION
    • Ryunosuke KUMAGAI
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    IMPACT TOOL
    • Publication number 20190143491
    • Publication date May 16, 2019
    • MAKITA CORPORATION
    • Ryunosuke KUMAGAI
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    IMPACT TOOL
    • Publication number 20190134800
    • Publication date May 9, 2019
    • MAKITA CORPORATION
    • Ryunosuke KUMAGAI
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ELECTRIC TOOL
    • Publication number 20190077005
    • Publication date Mar 14, 2019
    • MAKITA CORPORATION
    • Miyabi ITO
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ELECTRIC WORKING MACHINE AND METHOD OF CONTROLLING ROTATIONAL STATE...
    • Publication number 20190047132
    • Publication date Feb 14, 2019
    • MAKITA CORPORATION
    • Ryunosuke Kumagai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    POWER TOOL
    • Publication number 20180222022
    • Publication date Aug 9, 2018
    • MAKITA CORPORATION
    • Ryunosuke KUMAGAI
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    IMPACT TOOL
    • Publication number 20170203418
    • Publication date Jul 20, 2017
    • MAKITA CORPORATION
    • Ryunosuke KUMAGAI
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ELECTRIC TOOL
    • Publication number 20170182649
    • Publication date Jun 29, 2017
    • MAKITA CORPORATION
    • Miyabi ITO
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    POWER TOOL
    • Publication number 20170151657
    • Publication date Jun 1, 2017
    • MAKITA CORPORATION
    • Hidenori NAGASAKA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ELECTRIC WORKING MACHINE
    • Publication number 20170133965
    • Publication date May 11, 2017
    • MAKITA CORPORATION
    • Yoshitaka ICHIKAWA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ELECTRIC POWER TOOL
    • Publication number 20160107297
    • Publication date Apr 21, 2016
    • MAKITA CORPORATION
    • Goshi ISHIKAWA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ELECTRIC TOOL
    • Publication number 20150328763
    • Publication date Nov 19, 2015
    • MAKITA CORPORATION
    • Miyabi ITO
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ELECTRIC POWER TOOL
    • Publication number 20150158157
    • Publication date Jun 11, 2015
    • Makita Corporation
    • Tokuo Hirabayashi
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Rotary Impact Tool
    • Publication number 20150144365
    • Publication date May 28, 2015
    • Makita Corporation
    • Tokuo Hirabayashi
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    POWER TOOL
    • Publication number 20150135907
    • Publication date May 21, 2015
    • Makita Corporation
    • Tokuo Hirabayashi
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    IMPACT TOOL
    • Publication number 20150041169
    • Publication date Feb 12, 2015
    • MAKITA CORPORATION
    • Ryunosuke KUMAGAI
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ELECTRIC POWER TOOL
    • Publication number 20150027743
    • Publication date Jan 29, 2015
    • Makita Corporation
    • Ryunosuke Kumagai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    RECHARGEABLE ELECTRIC TOOL
    • Publication number 20140190718
    • Publication date Jul 10, 2014
    • MAKITA CORPORATION
    • Hidenori NAGASAKA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    IMPACT TOOL
    • Publication number 20140182869
    • Publication date Jul 3, 2014
    • MAKITA CORPORATION
    • Ryunosuke KUMAGAI
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ELECTRIC POWER TOOL
    • Publication number 20140091648
    • Publication date Apr 3, 2014
    • MAKITA CORPORATION
    • Ryunosuke KUMAGAI
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    FALLING PREVENTION STRUCTURE FOR SOCKET IN ELECTRIC POWER TOOL
    • Publication number 20130180368
    • Publication date Jul 18, 2013
    • Ryunosuke KUMAGAI
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ELECTRIC TOOLS
    • Publication number 20130033134
    • Publication date Feb 7, 2013
    • MAKITA CORPORATION
    • Akira NAITO
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    FALLING PREVENTION STRUCTURE FOR SOCKET OF POWER TOOL
    • Publication number 20120292865
    • Publication date Nov 22, 2012
    • Makita Corporation
    • Manabu Sugimoto
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ELECTRIC POWER TOOL SUSPENDING ATTACHMENT AND ELECTRIC POWER TOOL E...
    • Publication number 20120085560
    • Publication date Apr 12, 2012
    • MAKITA CORPORATION
    • Takao KUROYANAGI
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS