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Eiji Nakayama

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Patents Grantslast 30 patents

  • Information Patent Grant

    DC power supply device
    • Patent number 11,626,807
    • Issue date Apr 11, 2023
    • KOKI HOLDINGS CO., LTD.
    • Takuya Yoshinari
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Electric tool
    • Patent number 9,768,713
    • Issue date Sep 19, 2017
    • Hitachi Koki Co., Ltd.
    • Toshiaki Koizumi
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Adaptor, assembly of battery pack and adaptor, and electric tool wi...
    • Patent number 9,065,155
    • Issue date Jun 23, 2015
    • Hitachi Koki Co., Ltd.
    • Nobuhiro Takano
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Power tool
    • Patent number 8,686,675
    • Issue date Apr 1, 2014
    • Hitachi Koki Co., Ltd.
    • Yoshikazu Kawano
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Power tool
    • Patent number 8,415,922
    • Issue date Apr 9, 2013
    • Hitachi Koki Co., Ltd.
    • Kazuhiko Funabashi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Portable electrical power tool
    • Patent number 8,319,379
    • Issue date Nov 27, 2012
    • Hitachi Koki Co., Ltd.
    • Akira Onose
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Adaptor, assembly of battery pack and adaptor, and electric tool wi...
    • Patent number 8,237,404
    • Issue date Aug 7, 2012
    • Hitachi Koki Co., Ltd.
    • Nobuhiro Takano
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Battery pack and electric tool
    • Patent number 7,948,210
    • Issue date May 24, 2011
    • Hitachi Koki Co., Ltd.
    • Kazuhiko Funabashi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power tool
    • Patent number 7,932,701
    • Issue date Apr 26, 2011
    • Hitachi Koki Co., Ltd.
    • Kazuhiko Funabashi
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Power tool
    • Patent number 7,932,697
    • Issue date Apr 26, 2011
    • Hitachi Koki Co., Ltd.
    • Kazuhiko Funabashi
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Battery charger capable of indicating time remaining to achieve ful...
    • Patent number 6,992,464
    • Issue date Jan 31, 2006
    • Hitachi Koki Co., Ltd.
    • Nobuhiro Takano
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    DC power source unit with battery charging function
    • Patent number 6,967,465
    • Issue date Nov 22, 2005
    • Hitachi Koki Co., Ltd.
    • Nobuhiro Takano
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    DC power source unit with battery charging function
    • Patent number 6,683,439
    • Issue date Jan 27, 2004
    • Hitachi Koki Co., Ltd.
    • Nobuhiro Takano
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    DC power source unit with battery charging function
    • Patent number 6,566,843
    • Issue date May 20, 2003
    • Hitachi Koki Co., Ltd.
    • Nobuhiro Takano
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Adapter for DC power source unit
    • Patent number 6,534,885
    • Issue date Mar 18, 2003
    • Hitachi Koki Co., Ltd.
    • Atsushi Nakagawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    DC power source unit
    • Patent number 6,495,932
    • Issue date Dec 17, 2002
    • Hitachi Koki Co., Ltd.
    • Chikai Yoshimizu
    • G01 - MEASURING TESTING
  • Information Patent Grant

    DC power source unit alarming before electrically powered tool is o...
    • Patent number 6,172,860
    • Issue date Jan 9, 2001
    • Hitachi Koki Co., Ltd.
    • Chikai Yoshimizu
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Electrically-powered cutting and bending machine
    • Patent number 6,026,668
    • Issue date Feb 22, 2000
    • Hitachi Koki Co., Ltd.
    • Hiroyuki Oda
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Device for preventing an electrical equipment from re-powering afte...
    • Patent number 5,723,914
    • Issue date Mar 3, 1998
    • Hitachi Koki Co., Ltd.
    • Eiji Nakayama
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    System for management of body rotation of centrifuge
    • Patent number 5,342,280
    • Issue date Aug 30, 1994
    • Hitachi Koki Company Limited
    • Yoshitaka Niinai
    • B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
  • Information Patent Grant

    Method and apparatus for charging a battery
    • Patent number 4,998,057
    • Issue date Mar 5, 1991
    • Hitachi Koki Co., Ltd.
    • Shigeru Shinohara
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    WORK MACHINE
    • Publication number 20230170831
    • Publication date Jun 1, 2023
    • Koki Holdings Co., Ltd.
    • Kenichi HOSHINO
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    DC POWER SUPPLY DEVICE
    • Publication number 20220216799
    • Publication date Jul 7, 2022
    • Koki Holdings Co., Ltd.
    • Takuya YOSHINARI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    POWER SUPPLY DEVICE AND ELECTRIC DEVICE
    • Publication number 20190140567
    • Publication date May 9, 2019
    • Koki Holdings Co., Ltd.
    • Hayato YAMAGUCHI
    • B24 - GRINDING POLISHING
  • Information Patent Application

    Power Tool
    • Publication number 20180175757
    • Publication date Jun 21, 2018
    • Hitachi Koki Co., Ltd.
    • Hideyuki Tanimoto
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ELECTRIC TOOL
    • Publication number 20160204718
    • Publication date Jul 14, 2016
    • Hitachi Koki Co., Ltd.
    • Toshiaki Koizumi
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Power Tool and Battery Pack
    • Publication number 20120274245
    • Publication date Nov 1, 2012
    • HITACHI KOKI CO. LTD.
    • Nobuhiro Takano
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ADAPTOR, ASSEMBLY OF BATTERY PACK AND ADAPTOR, AND ELECTRIC TOOL WI...
    • Publication number 20120262035
    • Publication date Oct 18, 2012
    • Hitachi Koki Co., Ltd.
    • Nobuhiro TAKANO
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    POWER TOOL
    • Publication number 20110242717
    • Publication date Oct 6, 2011
    • Hitachi Koki Co., Ltd.
    • Kazuhiko Funabashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Portable Electrical Power Tool
    • Publication number 20110241456
    • Publication date Oct 6, 2011
    • Hitachi Koki Co., Ltd
    • Akira Onose
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    POWER TOOL
    • Publication number 20110148332
    • Publication date Jun 23, 2011
    • Hitachi Koki Co., Ltd.
    • Yoshikazu KAWANO
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    POWER TOOL
    • Publication number 20110037435
    • Publication date Feb 17, 2011
    • Hitachi Koki Co., Ltd.
    • Kazuhiko Funabashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Battery-Driven Power Tool and Battery Pack Therefor
    • Publication number 20110031975
    • Publication date Feb 10, 2011
    • Hitachi Koki Co., Ltd
    • Yoshikazu Kawano
    • G01 - MEASURING TESTING
  • Information Patent Application

    POWER TOOL
    • Publication number 20110000689
    • Publication date Jan 6, 2011
    • Hitachi Koki Co., Ltd.
    • Kazuhiko Funabashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    POWER TOOL
    • Publication number 20100033134
    • Publication date Feb 11, 2010
    • Hitachi Koki Co., Ltd.
    • Kazuhiko Funabashi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ADAPTOR, ASSEMBLY OF BATTERY PACK AND ADAPTOR, AND ELECTRIC TOOL WI...
    • Publication number 20090108806
    • Publication date Apr 30, 2009
    • Nobuhiro Takano
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Battery Pack and Electric Tool
    • Publication number 20080252263
    • Publication date Oct 16, 2008
    • Kazuhiko Funabashi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    POWER TOOL
    • Publication number 20080061742
    • Publication date Mar 13, 2008
    • Kazuhiko Funabashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Tool storage case
    • Publication number 20060170395
    • Publication date Aug 3, 2006
    • Chikai Yoshimizu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Battery charger capable of indicating time remaining to achieve ful...
    • Publication number 20040135548
    • Publication date Jul 15, 2004
    • Nobuhiro Takano
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    DC power source unit with battery charging function
    • Publication number 20040066172
    • Publication date Apr 8, 2004
    • HITACHI KOKI CO., LTD.
    • Nobuhiro Takano
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    DC power source unit with battery charging function
    • Publication number 20020175654
    • Publication date Nov 28, 2002
    • HITACHI KOKI CO., LTD.
    • Nobuhiro Takano
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    DC power source unit with battery charging function
    • Publication number 20020149345
    • Publication date Oct 17, 2002
    • HITACHI KOKI CO., LTD.
    • Nobuhiro Takano
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Adapter for DC power source unit
    • Publication number 20010015579
    • Publication date Aug 23, 2001
    • Atsushi Nakagawa
    • H01 - BASIC ELECTRIC ELEMENTS