Patents Assigned to Kabushiki Kaisha Izumi Seisakusho
  • Hexagonal headed bolt
    Patent number: D245147
    Type: Grant
    Filed: October 7, 1975
    Date of Patent: July 26, 1977
    Assignee: Kabushiki Kaisha Izumi Seisakusho
    Inventor: Toru Ono
  • Cap nut
    Patent number: D245571
    Type: Grant
    Filed: September 3, 1976
    Date of Patent: August 30, 1977
    Assignee: Kabushiki Kaisha Izumi Seisakusho
    Inventor: Toru Ono
  • Cap nut
    Patent number: D245572
    Type: Grant
    Filed: September 3, 1976
    Date of Patent: August 30, 1977
    Assignee: Kabushiki Kaisha Izumi Seisakusho
    Inventor: Toru Ono
  • Cap nut
    Patent number: D245573
    Type: Grant
    Filed: September 3, 1976
    Date of Patent: August 30, 1977
    Assignee: Kabushiki Kaisha Izumi Seisakusho
    Inventor: Toru Ono
  • Nut
    Patent number: D246225
    Type: Grant
    Filed: September 3, 1976
    Date of Patent: November 1, 1977
    Assignee: Kabushiki Kaisha Izumi Seisakusho
    Inventor: Toru Ono
  • Cap nut
    Patent number: D247698
    Type: Grant
    Filed: May 4, 1976
    Date of Patent: April 11, 1978
    Assignee: Kabushiki Kaisha Izumi Seisakusho
    Inventor: Toru Ono
  • Cap nut
    Patent number: D254232
    Type: Grant
    Filed: August 31, 1977
    Date of Patent: February 19, 1980
    Assignee: Kabushiki Kaisha Izumi Seisakusho
    Inventor: Toru Ono
  • Cap nut
    Patent number: D254291
    Type: Grant
    Filed: August 31, 1977
    Date of Patent: February 26, 1980
    Assignee: Kabushiki Kaisha Izumi Seisakusho
    Inventor: Toru Ono