TREA

Takafumi Itoh

Follow

Person

  • Ibaraki-ken, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Portable electric saw
    • Patent number D867843
    • Issue date Nov 26, 2019
    • KOKI HOLDINGS CO., LTD.
    • Takafumi Itoh
    • D08 - Tools and hardware
  • Information Patent Grant

    Portable electric power sander
    • Patent number D831458
    • Issue date Oct 23, 2018
    • Hitachi Koki Co., Ltd.
    • Takafumi Itoh
    • D08 - Tools and hardware
  • Information Patent Grant

    Electric device outputting light, wind, heat or sound
    • Patent number 9,967,920
    • Issue date May 8, 2018
    • Hitachi Koki Co., Ltd.
    • Takafumi Itoh
    • F21 - LIGHTING
  • Information Patent Grant

    Battery pack
    • Patent number D800650
    • Issue date Oct 24, 2017
    • Hitachi Koki Co., Ltd.
    • Takafumi Itoh
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Electric device with surrounding protective frame
    • Patent number 9,693,470
    • Issue date Jun 27, 2017
    • Hitachi Koki Co., Ltd.
    • Takafumi Itoh
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Electrical apparatus
    • Patent number 9,596,776
    • Issue date Mar 14, 2017
    • Hitachi Koki Co., Ltd.
    • Shigeru Takahashi
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Portable electric hammer drill
    • Patent number D762435
    • Issue date Aug 2, 2016
    • Hitachi Koki Co., Ltd.
    • Takafumi Itoh
    • D08 - Tools and hardware
  • Information Patent Grant

    Backpack-type power supply including operation portion
    • Patent number 9,391,305
    • Issue date Jul 12, 2016
    • Hitachi Koki Co., Ltd.
    • Takuya Yoshinari
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Power supply device
    • Patent number 9,345,156
    • Issue date May 17, 2016
    • Hitachi Koki Co., Ltd.
    • Masayuki Ogura
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Floodlight
    • Patent number D744139
    • Issue date Nov 24, 2015
    • Hitachi Koki Co., Ltd.
    • Takafumi Itoh
    • D26 - Lighting
  • Information Patent Grant

    Radio receiver
    • Patent number D726142
    • Issue date Apr 7, 2015
    • Hitachi Koki Co., Ltd.
    • Takafumi Itoh
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Chain saw
    • Patent number D701102
    • Issue date Mar 18, 2014
    • Hitachi Koki Co., Ltd.
    • Takafumi Itoh
    • D08 - Tools and hardware
  • Information Patent Grant

    Rechargeable battery
    • Patent number D689432
    • Issue date Sep 10, 2013
    • Hitachi Koki Co., Ltd.
    • Takafumi Itoh
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Portable plane
    • Patent number D678023
    • Issue date Mar 19, 2013
    • Hitachi Koki Co., Ltd.
    • Takafumi Itoh
    • D08 - Tools and hardware
  • Information Patent Grant

    Power supply device
    • Patent number D668608
    • Issue date Oct 9, 2012
    • Hitachi Koki Co., Ltd.
    • Takafumi Itoh
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    DC-AC inverter
    • Patent number D655245
    • Issue date Mar 6, 2012
    • Hitachi Koki Co., Ltd.
    • Takafumi Itoh
    • D13 - Equipment for production, distribution, or transformation of energy

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTRICAL APPARATUS
    • Publication number 20150282356
    • Publication date Oct 1, 2015
    • Hitachi Koki Co., Ltd.
    • Shigeru TAKAHASHI
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Backpack-Type Power Supply
    • Publication number 20150194646
    • Publication date Jul 9, 2015
    • Takuya Yoshinari
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ELECTRIC DEVICE
    • Publication number 20150043138
    • Publication date Feb 12, 2015
    • Hitachi Koki Co., Ltd.
    • Takafumi Itoh
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    ELECTRIC DEVICE OUTPUTTING LIGHT, WIND, HEAT OR SOUND
    • Publication number 20140313706
    • Publication date Oct 23, 2014
    • Hitachi Koki Co., Ltd.
    • Takafumi Itoh
    • F21 - LIGHTING
  • Information Patent Application

    Power Supply Device
    • Publication number 20140153171
    • Publication date Jun 5, 2014
    • Hitachi Koki Co., Ltd.
    • Masayuki Ogura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    BACKPACK-TYPE POWER SUPPLY INCLUDING OPERATION PORTION
    • Publication number 20140011061
    • Publication date Jan 9, 2014
    • Takuya Yoshinari
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS