Patents Assigned to Plus One Co., Ltd.
  • Riding toy
    Patent number: D352741
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: November 22, 1994
    Assignee: Plus One Co., Ltd.
    Inventor: Keiichi Nakai
  • Tri-cycle for child
    Patent number: D372690
    Type: Grant
    Filed: December 1, 1994
    Date of Patent: August 13, 1996
    Assignee: Plus One Co., Ltd.
    Inventor: Keiichi Nakai
  • Car for child
    Patent number: D378105
    Type: Grant
    Filed: June 26, 1995
    Date of Patent: February 18, 1997
    Assignee: Plus One Co., Ltd.
    Inventor: Keiichi Nakai
  • Baby-walker
    Patent number: D391201
    Type: Grant
    Filed: December 7, 1994
    Date of Patent: February 24, 1998
    Assignee: Plus One Co., Ltd.
    Inventor: Keiichi Nakai
  • Bicycle
    Patent number: D430823
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: September 12, 2000
    Assignee: Plus One Co., Ltd.
    Inventor: Keiichi Nakai