Patents by Inventor Kiyozumi Kokawa

Kiyozumi Kokawa 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).

  • Publication number: 20210028634
    Abstract: A pair of right and left fixing holes and a pair of strap attachment holes are provided on a rear surface of a main body housing at a position which does not protrude from a side area S in a planar view. A bottom edge portion of an upper recessed portion is provided above the fixing hole to cover each of the right and left fixing holes, the strap attachment holes are provided to be coaxial with the bottom edge portion, and it is ensured that durability and compactness of the charger are obtained.
    Type: Application
    Filed: October 7, 2020
    Publication date: January 28, 2021
    Applicant: MAKITA CORPORATION
    Inventors: Hideyuki TAGA, Yasuhiro TABUCHI, Hidenori NAGASAKA, Kiyozumi KOKAWA, Shinsuke OKUDA
  • Patent number: 10840717
    Abstract: A pair of right and left fixing holes and a pair of strap attachment holes are provided on a rear surface of a main body housing at a position which does not protrude from a side area S in a planar view. A bottom edge portion of an upper recessed portion is provided above the fixing hole to cover each of the right and left fixing holes, the strap attachment holes are provided to be coaxial with the bottom edge portion, and it is ensured that durability and compactness of the charger are obtained.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: November 17, 2020
    Assignee: MAKITA CORPORATION
    Inventors: Hideyuki Taga, Yasuhiro Tabuchi, Hidenori Nagasaka, Kiyozumi Kokawa, Shinsuke Okuda
  • Publication number: 20180138725
    Abstract: A pair of right and left fixing holes and a pair of strap attachment holes are provided on a rear surface of a main body housing at a position which does not protrude from a side area S in a planar view. A bottom edge portion of an upper recessed portion is provided above the fixing hole to cover each of the right and left fixing holes, the strap attachment holes are provided to be coaxial with the bottom edge portion, and it is ensured that durability and compactness of the charger are obtained.
    Type: Application
    Filed: January 12, 2018
    Publication date: May 17, 2018
    Applicant: MAKITA CORPORATION
    Inventors: Hideyuki TAGA, Yasuhiro TABUCHI, Hidenori NAGASAKA, Kiyozumi KOKAWA, Shinsuke OKUDA
  • Patent number: 9906055
    Abstract: A pair of right and left fixing holes and a pair of strap attachment holes are provided on a rear surface of a main body housing at a position which does not protrude from a side area S in a planar view. A bottom edge portion of an upper recessed portion is provided above the fixing hole to cover each of the right and left fixing holes, the strap attachment holes are provided to be coaxial with the bottom edge portion, and it is ensured that durability and compactness of the charger are obtained.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: February 27, 2018
    Assignee: MAKITA CORPORATION
    Inventors: Hideyuki Taga, Yasuhiro Tabuchi, Hidenori Nagasaka, Kiyozumi Kokawa, Shinsuke Okuda
  • Patent number: 9248566
    Abstract: A tool housing case includes a main body case, for holding a power tool, for example, and an accessory case, for holding a power tool accessory, for example, which accessory case is connectable to the main body case on a handle side of the main body case near a main body case handle. The accessory case has an opening that can be selectively closed by a cover element. A space is provided between the handle and the accessory case for receiving a user's hand when the handle is gripped, and when a user's hand is not gripping the handle, this space allows access to the accessory case.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: February 2, 2016
    Assignee: Makita Corporation
    Inventors: Tooru Horiyama, Naoto Akiyama, Yukiyasu Okouchi, Shinya Bito, Kiyozumi Kokawa
  • Publication number: 20150137758
    Abstract: A pair of right and left fixing holes and a pair of strap attachment holes are provided on a rear surface of a main body housing at a position which does not protrude from a side area S in a planar view. A bottom edge portion of an upper recessed portion is provided above the fixing hole to cover each of the right and left fixing holes, the strap attachment holes are provided to be coaxial with the bottom edge portion, and it is ensured that durability and compactness of the charger are obtained.
    Type: Application
    Filed: May 28, 2013
    Publication date: May 21, 2015
    Inventors: Hideyuki Taga, Yasuhiro Tabuchi, Hidenori Nagasaka, Kiyozumi Kokawa, Shinsuke Okuda
  • Publication number: 20140183075
    Abstract: A tool housing case includes a main body case, for holding a power tool, for example, and an accessory case, for holding a power tool accessory, for example, which accessory case is connectable to the main body case on a handle side of the main body case near a main body case handle. The accessory case has an opening that can be selectively closed by a cover element. A space is provided between the handle and the accessory case for receiving a user's hand when the handle is gripped, and when a user's hand is not gripping the handle, this space allows access to the accessory case.
    Type: Application
    Filed: December 26, 2013
    Publication date: July 3, 2014
    Applicant: Makita Corporation
    Inventors: Tooru Horiyama, Naoto Akiyama, Yukiyasu Okouchi, Shinya Bito, Kiyozumi Kokawa
  • Publication number: 20130312382
    Abstract: A lawn mower may include a main body having first right and left wheels, a mowing blade attached to the main body and configured to be rotated by a power source, and at least one mowing width indicator. The mowing blade is configured such that a mowing width thereof is greater than a distance between inner end surfaces of the first right and left wheels. The at least one mowing width indicator is formed in the first right and left wheels.
    Type: Application
    Filed: May 16, 2013
    Publication date: November 28, 2013
    Inventors: Kiyozumi KOKAWA, Kazunori HATTORI
  • Patent number: 8439192
    Abstract: A toolbox is configured to store at least one hand-held tool in a forward leaning position. A front end portion of a tool main body and a rear end potion of a handle are supported by a seat portion of the toolbox.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: May 14, 2013
    Assignee: Makita Corporation
    Inventors: Munetoshi Goto, Kiyozumi Kokawa, Toru Horiyama, Yoshizo Hasegawa
  • Patent number: 8113297
    Abstract: A power tool includes a body, a tool bit, a driving mechanism and a handgrip extending from an end of the handgrip proximal to the body to a grip distal end in a direction that crosses the axial direction of the tool bit. The power tool includes a holding optimization region that is arranged on the handgrip and shaped to match the shape of the user's fingers while the user is holding the handgrip. The holding optimization region at least includes a rearward end surface of a grip distal end region configured such that a normal extending from the rearward end surface crosses the axial direction of the tool bit forward of the handgrip, whereby it is possible to optimize the force of the user's fingers and palm applied to the handgrip.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: February 14, 2012
    Assignee: Makita Corporation
    Inventors: Kazuyuki Sakakibara, Kiyozumi Kokawa
  • Publication number: 20110079409
    Abstract: It is an object of the invention to provide an effective technique for reducing the load of user's fingers in a power tool. A representative power tool includes a body, a tool bit, a driving means and a handgrip that extends from a grip proximal end on the side of the body to a grip distal end in a direction that crosses the axial direction of the tool bit. The power tool includes a holding optimization region that is arranged on the handgrip and shaped to match with the holding form of the fingers of the user when the user holds the handgrip. Specifically, the holding optimization region at least includes the rear end surface of the grip distal end region such that a normal on the rear end surface crosses an axis of the tool bit forward of the handgrip. As a result, according to the invention, the force of the user's fingers and palm on the handgrip can be optimized.
    Type: Application
    Filed: December 7, 2010
    Publication date: April 7, 2011
    Applicant: MAKITA CORPORATION
    Inventors: Kazuyuki Sakakibara, Kiyozumi Kokawa
  • Publication number: 20100129701
    Abstract: One aspect according to the present invention includes a battery pack having a battery pack body. The battery pack body includes a finger engaging portion engageable with a finger or fingers of an operator in a removing direction of the battery pack body from a power tool.
    Type: Application
    Filed: November 20, 2009
    Publication date: May 27, 2010
    Applicant: MAKITA CORPORATION
    Inventors: Tsuyoshi Murayama, Kiyozumi Kokawa, Kazutoshi Ogino
  • Patent number: D608375
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: January 19, 2010
    Assignee: Makita Corporation
    Inventors: Kiyozumi Kokawa, Shinsuke Okuda, Masahiko Miura
  • Patent number: D636996
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: May 3, 2011
    Assignee: Makita Corporation
    Inventors: Kiyozumi Kokawa, Tomonori Kawase
  • Patent number: D642518
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: August 2, 2011
    Assignee: Makita Corporation
    Inventor: Kiyozumi Kokawa
  • Patent number: D661903
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: June 19, 2012
    Assignee: Makita Corporation
    Inventors: Kiyozumi Kokawa, Tomonori Kawase
  • Patent number: D668869
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: October 16, 2012
    Assignee: Makita Corporation
    Inventors: Yuji Yamamoto, Kiyozumi Kokawa
  • Patent number: D671094
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: November 20, 2012
    Assignee: Makita Corporation
    Inventors: Kiyozumi Kokawa, Tomonori Kawase
  • Fan
    Patent number: D686309
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: July 16, 2013
    Assignee: Makita Corporation
    Inventors: Kiyozumi Kokawa, Shinsuke Okuda, Fuzhi Zhang
  • Patent number: D706603
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: June 10, 2014
    Assignee: Makita Corporation
    Inventors: Kiyozumi Kokawa, Shinsuke Okuda