Patents by Inventor Takehiro OOKUBO

Takehiro OOKUBO 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).

  • Power-actuated tool
    Patent number: 10618157
    Abstract: An electric power tool has a brushless motor for driving a tip tool, and a motor case is at least partly covered by a motor housing made of aluminum alloy and exposed to an outside. A control board provided with a control circuit for controlling the rotation of the brushless motor is disposed adjacent to the motor housing. The brushless motor and a control board are cooled by cooling air generated by a fun, thereby enhancing the cooling characteristics of the motor control circuit.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: April 14, 2020
    Assignee: KOKI HOLDINGS CO., LTD.
    Inventors: Hideyuki Hashimoto, Atsuyuki Kikuchi, Shingo Yamazaki, Kuniaki Kanbe, Satoshi Abe, Daijiro Tanabe, Takehiro Ookubo
  • POWER-ACTUATED TOOL
    Publication number: 20160229045
    Abstract: An electric power tool has a brushless motor for driving a tip tool, and a motor case is at least partly covered by a motor housing made of aluminum alloy and exposed to an outside. A control board provided with a control circuit for controlling the rotation of the brushless motor is disposed adjacent to the motor housing. The brushless motor and a control board are cooled by cooling air generated by a fun, thereby enhancing the cooling characteristics of the motor control circuit.
    Type: Application
    Filed: December 18, 2014
    Publication date: August 11, 2016
    Inventors: Hideyuki HASHIMOTO, Atsuyuki KIKUCHI, Shingo YAMAZAKI, Kuniaki KANBE, Satoshi ABE, Daijiro TANABE, Takehiro OOKUBO