Patents by Inventor Kohichi Shohji

Kohichi Shohji 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: 5549964
    Abstract: A stretchable nonwoven fabric manufactured by using a hydrogenated block copolymer obtained by hydrogenating a block copolymer including polymer blocks A constituted mainly by a vinyl aromatic compound and a polymer block B constituted mainly by a conjugated diene compound, at least one polymer block B being arranged on an end of a polymer chain of the block copolymer, as a raw material. The spinning property and characteristics of the nonwoven fabric can be further improved by adding a polyolefin to the above raw material.The obtained stretchable nonwoven fabric has a superior strength, extension characteristics, i.e., elongation and extension recovery, and weathering resistance, and can be broadly used for many applications due to those characteristics.
    Type: Grant
    Filed: January 11, 1995
    Date of Patent: August 27, 1996
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Kohichi Shohji, Masataka Ikeda, Yasushi Kishimoto