Patents by Inventor Masayoshi Iwahashi

Masayoshi Iwahashi 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).

  • Hitting position detecting device, hitting position detecting method, and method of manufacturing hitting position detecting device
    Patent number: 8398502
    Abstract: A hitting position detecting device includes: a golf club which includes a shaft having a grip portion and a head portion having a face portion with a hitting surface and a rear surface and attached to the front end of the shaft; vibration wave sensors which is arranged on the side of the rear surface of the face portion and is fixed to the head portion so as to output electrical signals in accordance with a vibration wave generated upon hitting of the face portion; a calculation unit which detects arrival times in the vibration wave sensors of the vibration wave generated in the face portion upon hitting of a ball on the basis of the electrical signals, calculates a hitting position of the ball in the face portion on the basis of a difference in the plurality of arrival times, and then outputs the result as a hitting position signal; a display unit which displays the hitting position in the face portion on the basis of the hitting position signal output from the calculation unit; and a power source which sup
    Type: Grant
    Filed: November 27, 2008
    Date of Patent: March 19, 2013
    Assignee: Mugen Inc.
    Inventors: Masayoshi Iwahashi, Akinari Ikka, Pete Izumikawa
  • HITTING POSITION DETECTING DEVICE, HITTING POSITION DETECTING METHOD, AND METHOD OF MANUFACTURING HITTING POSITION DETECTING DEVICE
    Publication number: 20100304877
    Abstract: A hitting position detecting device includes: a golf club which includes a shaft having a grip portion and a head portion having a face portion with a hitting surface and a rear surface and attached to the front end of the shaft; vibration wave sensors which is arranged on the side of the rear surface of the face portion and is fixed to the head portion so as to output electrical signals in accordance with a vibration wave generated upon hitting of the face portion; a calculation unit which detects arrival times in the vibration wave sensors of the vibration wave generated in the face portion upon hitting of a ball on the basis of the electrical signals, calculates a hitting position of the ball in the face portion on the basis of a difference in the plurality of arrival times, and then outputs the result as a hitting position signal; a display unit which displays the hitting position in the face portion on the basis of the hitting position signal output from the calculation unit; and a power source which sup
    Type: Application
    Filed: November 27, 2008
    Publication date: December 2, 2010
    Applicant: MUGEN INC.
    Inventors: Masayoshi Iwahashi, Akinari Ikka, Pete Izumikawa