TREA

Yoshinori Ishizawa

Follow

Person

  • Ibaraki-ken, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Fastener driving tool
    • Patent number 10,744,629
    • Issue date Aug 18, 2020
    • KOKI HOLDINGS CO., LTD.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • 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

    Driving tool with push lever configured to contact housing
    • Patent number 9,669,529
    • Issue date Jun 6, 2017
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Fastener driving tool
    • Patent number 9,061,408
    • Issue date Jun 23, 2015
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Fastener driving tool
    • Patent number 8,066,165
    • Issue date Nov 29, 2011
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Driving machine
    • Patent number 7,757,921
    • Issue date Jul 20, 2010
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Fastener driving tool
    • Patent number 7,441,683
    • Issue date Oct 28, 2008
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Pneumatically operated fastener driving tool
    • Patent number 7,398,647
    • Issue date Jul 15, 2008
    • Hitachi Koki Co., Ltd.
    • Yoshiichi Komazaki
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Fastener driving tool
    • Patent number 7,395,953
    • Issue date Jul 8, 2008
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Fastener driving tool and magazine device
    • Patent number 7,325,709
    • Issue date Feb 5, 2008
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Nail gun provided with duster function
    • Patent number 7,322,505
    • Issue date Jan 29, 2008
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Fastener driving tool
    • Patent number 7,322,501
    • Issue date Jan 29, 2008
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Urged magazine for a fastener driving tool
    • Patent number 7,299,959
    • Issue date Nov 27, 2007
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Fastener driving tool
    • Patent number 7,243,831
    • Issue date Jul 17, 2007
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Pneumatically operated fastener driving tool
    • Patent number 7,156,012
    • Issue date Jan 2, 2007
    • Hitachi Koki Co., Ltd.
    • Yoshiichi Komazaki
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Portable pneumatic nailer
    • Patent number D519809
    • Issue date May 2, 2006
    • Hitachi Koki Co., Ltd.
    • Takeshi Taniguchi
    • D08 - Tools and hardware
  • Information Patent Grant

    Trigger valve apparatus for pneumatic tool
    • Patent number 7,014,089
    • Issue date Mar 21, 2006
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Nail gun provided with duster function
    • Patent number 6,783,050
    • Issue date Aug 31, 2004
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Pneumatically operated nail gun having cylinder floating prevention...
    • Patent number 6,779,699
    • Issue date Aug 24, 2004
    • Hitachi Koki Co., Ltd.
    • Masanori Aoki
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Trigger valve apparatus for pneumatic tool
    • Patent number 6,745,928
    • Issue date Jun 8, 2004
    • Hitachi Co., Ltd
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Pneumatic nailing machine
    • Patent number D466781
    • Issue date Dec 10, 2002
    • Hitachi Koki Co., Ltd.
    • Takeshi Matsuoka
    • D08 - Tools and hardware
  • Information Patent Grant

    Pneumatic nailing machine
    • Patent number D432882
    • Issue date Oct 31, 2000
    • Hitachi Koki Co., Ltd.
    • Takeshi Matsuoka
    • D08 - Tools and hardware
  • Information Patent Grant

    Pneumatically operated nail driver
    • Patent number 6,006,975
    • Issue date Dec 28, 1999
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Repetitive striking type pneumatically operated nail gun
    • Patent number 5,873,510
    • Issue date Feb 23, 1999
    • Hitachi Koki Co., Ltd.
    • Shoichi Hirai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Piston arrangement for a percussion tool
    • Patent number 5,775,201
    • Issue date Jul 7, 1998
    • Hitachi Koko Co., Ltd.
    • Isamu Tanji
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Driver blade for a percussion tool
    • Patent number 5,647,525
    • Issue date Jul 15, 1997
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Nail gun having safety device for preventing accidental firings
    • Patent number 5,495,973
    • Issue date Mar 5, 1996
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Combustion gas powered fastener driving tool
    • Patent number 5,090,606
    • Issue date Feb 25, 1992
    • Hitachi Koki Company, Limited
    • Takuji Torii
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents

  • Information Patent Application

    DRIVING TOOL
    • Publication number 20220143797
    • Publication date May 12, 2022
    • Koki Holdings Co., Ltd.
    • Yoshinori ISHIZAWA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    FASTENER DRIVING TOOL
    • Publication number 20170274512
    • Publication date Sep 28, 2017
    • Hitachi Koki Co., Ltd.
    • Yoshinori ISHIZAWA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    DRIVING TOOL WITH PUSH LEVER CONFIGURED TO CONTACT HOUSING
    • Publication number 20150090758
    • Publication date Apr 2, 2015
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • 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

    Fastener Driving Tool
    • Publication number 20120298712
    • Publication date Nov 29, 2012
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    DRIVING MACHINE
    • Publication number 20090072002
    • Publication date Mar 19, 2009
    • HITACHI KOKI CO., LTD.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    FASTENER DRIVING TOOL
    • Publication number 20080251566
    • Publication date Oct 16, 2008
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Pneumatically operated fastener driving tool
    • Publication number 20070113733
    • Publication date May 24, 2007
    • Yoshiichi Komazaki
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Fastener driving tool
    • Publication number 20060016843
    • Publication date Jan 26, 2006
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Fastener driving tool
    • Publication number 20060016844
    • Publication date Jan 26, 2006
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Fastener driving tool
    • Publication number 20060016845
    • Publication date Jan 26, 2006
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Fastener driving tool
    • Publication number 20060011692
    • Publication date Jan 19, 2006
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Fastener driving tool
    • Publication number 20060011695
    • Publication date Jan 19, 2006
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Fastener driving tool
    • Publication number 20060011694
    • Publication date Jan 19, 2006
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Nail gun
    • Publication number 20050263558
    • Publication date Dec 1, 2005
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Fastener driving tool and magazine device
    • Publication number 20050211745
    • Publication date Sep 29, 2005
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Pneumatically operated fastener driving tool
    • Publication number 20050156008
    • Publication date Jul 21, 2005
    • Yoshiichi Komazaki
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Nail gun provided with duster function
    • Publication number 20050001069
    • Publication date Jan 6, 2005
    • HITACHI KOKI CO., LTD.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    On-off valve
    • Publication number 20040238590
    • Publication date Dec 2, 2004
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Trigger valve apparatus for a pneumatic tool
    • Publication number 20040188488
    • Publication date Sep 30, 2004
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Nail gun provided with duster function
    • Publication number 20040026477
    • Publication date Feb 12, 2004
    • HITACHI KOKI CO., LTD.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Pneumatically operated nail gun having cylinder floating prevention...
    • Publication number 20040011846
    • Publication date Jan 22, 2004
    • HITACHI KOKI CO., LTD.
    • Masanori Aoki
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Air plug and pneumatically operated tool provided with the air plug
    • Publication number 20030155764
    • Publication date Aug 21, 2003
    • HITACHI KOKI CO., LTD.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Trigger valve apparatus for pneumatic tool
    • Publication number 20010009260
    • Publication date Jul 26, 2001
    • Hitachi Koki Co., Ltd.
    • Yoshinori Ishizawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS