Patents Assigned to Daiya Corporation
  • 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
  • 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
  • Patent number: 5320429
    Abstract: A laundry net for holding a brassiere while the brassiere is being laundered has a dome-shaped bag having a substantially circular bottom member and a substantially conical upper member joined thereto for covering cups of the brassiere. Each of the bottom and upper members comprises first, second, and second nets each made of a water-permeable material, the first and second nets having a relatively coarse mesh and being spaced from each other, the first and second nets being joined to each other by a plurality of elastic threads, the third net having a relatively fine mesh and being positioned inwardly of the first and second nets, the third net being spaced from the second net. The bag has an opening defined along a ridge of the upper member for taking the brassiere into and out of the bag. The opening can selectively be opened and closed by a slide fastener.
    Type: Grant
    Filed: December 30, 1992
    Date of Patent: June 14, 1994
    Assignee: Daiya Corporation
    Inventor: Manabu Toyosawa