Patents by Inventor Kouji Ushikubo

Kouji Ushikubo 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).

  • Adjustable watch band having multi-part link units
    Patent number: 5038557
    Abstract: A watch band having length adjusting function is disclosed. The band is formed by connecting a plurality of link units (14). Each of the link units comprises a first link (10) and a second link (11). The first and second links (10, 11) have bodies (10b, 11b) and projections (10c, 11c) projecting from inner portions of the bodies. The bodies have holes (10a, 11a) extending in the lateral direction, and the projections have perforated holes (15) extending in the lateral direction. Adjacent link units are connected by engaging a pin with the holes. Structure (12a, 13) is provided for preventing the first and second links from moving in the lateral direction in an approximately flat state, and for allowing the lateral movement of the links when both the links are relatively angularly displaced about the pin.
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: August 13, 1991
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Shigeru Otsuki, Kouji Ushikubo