Patents by Inventor Kisho Sekido

Kisho Sekido 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: 20240189973
    Abstract: A power tool (1; 101) includes: a motor (6; 106) having a stator (61) and a rotor (63), which is rotatable relative to the stator; an output part (8; 108) disposed more forward than the motor and configured to be rotated by the motor; a motor-housing part (21; 121), which houses the motor; a grip part (22; 122) disposed downward of the motor-housing part; a battery-holding part (23; 123) disposed downward of the grip part; and a COB light (50) disposed on the battery-holding part.
    Type: Application
    Filed: November 1, 2023
    Publication date: June 13, 2024
    Inventors: Takuma IWATANI, Makoto CHIKARAISHI, Kisho SEKIDO, Akira ITO
  • Publication number: 20230271309
    Abstract: An electric work machine avoids use of more lead wires. The electric work machine includes an operation unit operable in an operation mode of at least three operation modes, an operable member movable to switch the operation mode, a plurality of mode sensors located in a direction of movement of the operable member to detect the operable member and being equal in number to or fewer than the at least three operation modes, a mode sensor board on which the plurality of mode sensors are mounted and including an output terminal connected to the plurality of mode sensors, and a controller board connected to the output terminal with an output lead wire to determine the operation mode based on an output signal output from the output terminal.
    Type: Application
    Filed: January 9, 2023
    Publication date: August 31, 2023
    Applicant: MAKITA CORPORATION
    Inventor: Kisho SEKIDO
  • Publication number: 20220355362
    Abstract: A fastening tool includes a motor, an anvil, a pin-gripping part, a magnet having the north pole and the south pole aligned in a front-rear direction and configured to move integrally with the pin-gripping part in the front-rear direction, a first magnetic sensor having a first sensing surface, a second magnetic sensor having a second sensing surface and disposed rearward of the first magnetic sensor, and a control device configured to move the pin-gripping part rearward based on a detection result of the second magnetic sensor and to move the pin-gripping part forward based on a detection result of the first magnetic sensor. The first and second magnetic sensors are unipolar detection type sensors configured to detect a same specified pole of the magnet. Orientations of the first sensing surface and the second sensing surface relative to a movement axis of the magnet are opposite to each other.
    Type: Application
    Filed: April 13, 2022
    Publication date: November 10, 2022
    Applicant: MAKITA CORPORATION
    Inventors: Yuta IZUTSU, Kisho SEKIDO
  • Patent number: 11478842
    Abstract: A fastening tool includes a motor, an anvil, a pin-gripping part, a magnet having the north pole and the south pole aligned in a front-rear direction and configured to move integrally with the pin-gripping part in the front-rear direction, a first magnetic sensor having a first sensing surface, a second magnetic sensor having a second sensing surface and disposed rearward of the first magnetic sensor, and a control device configured to move the pin-gripping part rearward based on a detection result of the second magnetic sensor and to move the pin-gripping part forward based on a detection result of the first magnetic sensor. The first and second magnetic sensors are unipolar detection type sensors configured to detect a same specified pole of the magnet. Orientations of the first sensing surface and the second sensing surface relative to a movement axis of the magnet are opposite to each other.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: October 25, 2022
    Assignee: MAKITA CORPORATION
    Inventors: Yuta Izutsu, Kisho Sekido