Patents by Inventor Naohiro Hayakawa

Naohiro Hayakawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Portable electric band saw
    Patent number: D530580
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: October 24, 2006
    Assignee: Makita Corporation
    Inventors: Naohiro Hayakawa, Akinori Ito
  • Portion of a portable electric hammer drill
    Patent number: D531474
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: November 7, 2006
    Assignee: Makita Corporation
    Inventors: Naohiro Hayakawa, Yasutoshi Shinma, Junichi Iwakami
  • Portable electric bandsaw body
    Patent number: D546153
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: July 10, 2007
    Assignee: Makita Corporation
    Inventors: Naohiro Hayakawa, Akinori Ito
  • Portable electric grinder
    Patent number: D548034
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: August 7, 2007
    Assignee: Makita Corporation
    Inventors: Naohiro Hayakawa, Tadashi Fukumoto
  • Portable electric circular saw
    Patent number: D559644
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: January 15, 2008
    Assignee: Makita Corporation
    Inventors: Takao Kuroyanagi, Taiju Tsuboi, Naohiro Hayakawa
  • Portable electric jig saw
    Patent number: D566504
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: April 15, 2008
    Assignee: Makita Corporation
    Inventors: Naohiro Hayakawa, Goh Yamamura
  • Portable electric drill
    Patent number: D587545
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: March 3, 2009
    Assignee: Makita Corporation
    Inventors: Naohiro Hayakawa, Kazunori Tsuge
  • Portable electric drill
    Patent number: D588891
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: March 24, 2009
    Assignee: Makita Corporation
    Inventors: Naohiro Hayakawa, Tokuo Hirabayashi
  • Portable electric drill
    Patent number: D593388
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: June 2, 2009
    Assignee: Makita Corporation
    Inventors: Naohiro Hayakawa, Akinori Ito
  • Portable electric planer
    Patent number: D601874
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: October 13, 2009
    Assignee: Makita Corporation
    Inventors: Naohiro Hayakawa, Masahiko Inai, Masanori Hayashi, Yuki Wada
  • Portable electric drill
    Patent number: D631315
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: January 25, 2011
    Assignee: Makita Corporation
    Inventors: Ben Xue, Xin Bing Li, Naohiro Hayakawa
  • Portable electric grinder
    Patent number: D634170
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: March 15, 2011
    Assignee: Makita Corporation
    Inventors: Hao Hu, Naohiro Hayakawa
  • Portable electric jigsaw
    Patent number: D634171
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: March 15, 2011
    Assignee: Makita Corporation
    Inventors: Naohiro Hayakawa, Qi Bin Zhao
  • Portable electric sander
    Patent number: D636243
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: April 19, 2011
    Assignee: Makita Corporation
    Inventors: Hao Liu, Naohiro Hayakawa
  • Portable electric saw
    Patent number: D639130
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: June 7, 2011
    Assignee: Makita Corporation
    Inventors: Tomohiro Ukai, Naohiro Hayakawa, Fuzhi Zhang
  • Portable electric drill
    Patent number: D643270
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: August 16, 2011
    Assignee: Makita Corporation
    Inventors: Naohiro Hayakawa, Gang Ren
  • Portable electric jigsaw
    Patent number: D647379
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: October 25, 2011
    Assignee: Makita Corporation
    Inventors: Syuuji Aoyama, Kenta Niwa, Naohiro Hayakawa, Fuzhi Zhang
  • Portable electric grinder
    Patent number: D647772
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: November 1, 2011
    Assignee: Makita Corporation
    Inventor: Naohiro Hayakawa
  • Portable electric jigsaw
    Patent number: D649422
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: November 29, 2011
    Assignee: Makita Corporation
    Inventor: Naohiro Hayakawa
  • Portable electric grinder
    Patent number: D660119
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: May 22, 2012
    Assignee: Makita Corporation
    Inventors: Tadashi Fukumoto, Hideharu Muto, Naohiro Hayakawa