Patents by Inventor Yoyu Fujikawa

Yoyu Fujikawa 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: 4527404
    Abstract: An entirely warp-knit lace strip having sinuate scallops knit of bent scallop-forming yarn, the scallops having outwardly protruding U-shaped picots at their edges.The lace strip described is made by a series of steps including the formation of chain stitch lines in step-like indentation by overlapping the scallop-forming yarns which are shifted through a plurality of needles after scallops have been formed for all stitch lines. Simultaneously, picot-forming yarns are transversely shifted so as to protrude from the edges of the scallops. The protruding parts are held or attached to soluble yarn portions. As desired, the soluble yarns are dissolved to free the scallops and picots.Several portions of lace texture are made from two kinds of yarn, an insoluble one and a soluble one with respect to the same solvent, which are threaded on the same guide bar used to form the mesh fabric.
    Type: Grant
    Filed: February 14, 1984
    Date of Patent: July 9, 1985
    Inventors: Noboru Nakagaki, Yoyu Fujikawa
  • Patent number: 4307496
    Abstract: This invention is concerned with a new textile product in the form of a lace strip which is entirely warp-knitted with sinuate scallops. The scallops are manufactured from bent scallop-forming yarns and picots of which one end protrudes outwardly in a U-shape configuration.The novel lace strips are manufactured by forming chain stitch lines in step-like indentation by overlapping the scallop-forming yarns and passing the yarns in turn through a plurality of needles. Simultaneously picot-forming yarns are transversely positioned to produce protrusions from the scallops. In order to separate the scallops and their picots, the parts of the knitted fabric to be readily separated, said scallops and attached picots are knitted to soluble yarns which are subsequently dissolved to facilitate separation.
    Type: Grant
    Filed: October 2, 1979
    Date of Patent: December 29, 1981
    Assignee: Takeda Lace Co., Ltd.
    Inventors: Noboru Nakagaki, Yoyu Fujikawa