Patents by Inventor Issei Toyosawa

Issei Toyosawa 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).

  • Patent number: 7901303
    Abstract: A golf tee with excellent support stability is provided. The golf tee is capable of preventing itself from being driven together with a golf ball. The golf tee is a truncated conical golf tee having a hollow structure with a lower end placed on the ground surface and an upper end on which a golf ball is placed. The golf tee has shape restoration properties. The golf tee has a plurality of columns extending from the lower end toward the upper end, sidewalls thinner than the column formed between respective columns, and a plurality of vents provided in each of the sidewalls.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: March 8, 2011
    Assignee: Daiya Corporation
    Inventor: Issei Toyosawa
  • Publication number: 20100173729
    Abstract: To provide a golf tee exhibiting excellent support stability and capable of preventing it from being driven together with a golf ball as much as possible. A truncated conical golf tee (10) of a hollow structure used by having its lower end placed on the ground surface and placing a golf ball on the upper end thereof. The golf tee (10) exhibiting form restoration properties, has a plurality of columns (1) extending from the lower end (6) toward the upper end (5), sidewalls (2) thinner than the column (1) formed between respective columns (1), and a plurality of vents (3) provided in each of the sidewalls (2).
    Type: Application
    Filed: January 24, 2007
    Publication date: July 8, 2010
    Inventor: Issei Toyosawa
  • Patent number: 7011586
    Abstract: The present invention provides a durable golf tee capable of conserving as much as possible the impact energy transmitted to the golf tee and preventing possible flight thereof from the ground. The golf tee comprises a stick pin, the lower end of which is formed in a tapered shape, to stick into the ground, a ball-holding member placed on the top of the stick pin and provided with a small hole at the bottom of a hollow part, and a flexible connecting member, the lower end of which is fixed on the stick pin. The connecting member is provided with a flange on the upper end for binding slidably the ball-holding member to the stick pin and inserted into a hollow part H through a small hole perforated at the bottom of the ball-holding member. Notches 4b1 are formed between the flange of the connecting member and the ball-holding member to let air escape upward.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: March 14, 2006
    Assignee: Daiya Corporation
    Inventors: Issei Toyosawa, Shoji Hiroshima
  • Publication number: 20040166964
    Abstract: The present invention provides a durable golf tee capable of conserving as much as possible the impact energy transmitted to the golf tee and of preventing possible flight thereof from the ground. The golf tee comprises a stick pin the lower end of which is formed in a tapering shape to stick into the ground, a ball-holding member placed on the top of the stick pin provided with a small hole at the bottom of a hollow part, and a flexible connecting member the lower end of which is fixed on the stick pin, the connecting member being provided with a flange on the upper end for binding slidably the ball-holding member to the stick pin, the connecting member being inserted into a hollow part H through a small hole perforated at the bottom of the ball-holding member, and notches 4b1 being formed between the flange of the connecting member and the ball-holding member to let air escape upward.
    Type: Application
    Filed: February 6, 2004
    Publication date: August 26, 2004
    Inventors: Issei Toyosawa, Shoji Hiroshima