Patents by Inventor Tatsuji Kojima

Tatsuji Kojima 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: 4537057
    Abstract: A rolling mill comprises a pair of an upper and a lower work roll having a small diameter which is as large as about 0.15 to 0.30 times the width of a metal sheet article to be rolled, a pair of an upper and a lower back-up roll, a pair of an upper and a lower intermediate roll disposed intermediate between the work roll pair and the back-up roll pair, work roll bending units and intermediate roll bending units imparting bending forces to the roll ends of the upper and lower work rolls and/or the roll ends of the upper and lower intermediate rolls respectively, roll shifting units capable of shifting the upper and lower intermediate rolls in axial directions opposite to each other, and drive units coupled to the associated ends of the upper and lower intermediate rolls to rotate the upper and lower work rolls at different peripheral speeds through the intermediate rolls.
    Type: Grant
    Filed: March 8, 1983
    Date of Patent: August 27, 1985
    Assignee: Hitachi, Ltd.
    Inventors: Toshiyuki Kajiwara, Tatsuji Kojima
  • Patent number: 4418104
    Abstract: A fur-like napped fabric and process for manufacturing same are disclosed wherein a fiber layer comprising uncrimped short fibers or short fibers having a number of crimps of not greater than 10 crimps per inch are provided as a fiber layer on a base fabric. The fibers are then implanted into the base fabric by needle punching. Thereafter, the fibers are raised to form a nap. After needle punching, the base fabric and fibers may be bonded to each other by means of a backing treatment or the like which is carefully applied so as not to permeate the raised hair portion extending on the front surface of the fabric. Especially pleasing aesthetic effects are produced when the napped fibers have static frictional coefficients of less than 0.35 and wherein the bending recovery rate of said fibers is higher than 50%.
    Type: Grant
    Filed: May 27, 1982
    Date of Patent: November 29, 1983
    Assignee: Toray Industries, Inc.
    Inventors: Yoshiteru Kiyomura, Yutaka Masuda, Tatsuji Kojima
  • Patent number: 4065598
    Abstract: A process for imparting antistatic, soil release and water-absorbing properties to a synthetic fiber structure which comprises adhering the following agent (A) or (B): to the fiber structureA. a compound selected from the group consisting of diacrylate, dimethacrylate, triacrylate and trimethacrylate compound having a polyalkylene oxide segment which has a molecular weight of from 400 to 10,000 and which includes an alkylene substituent selected from the group consisting of ethylene groups, propylene groups and a mixture of ethylene groups and propylene groupsB. a mixture ofA.
    Type: Grant
    Filed: March 15, 1977
    Date of Patent: December 27, 1977
    Assignee: Toray Industries, Inc.
    Inventors: Kooji Takahashi, Tatsuji Kojima, Teruo Ishikawa, Kimio Nakamura, Shizuyoshi Ikenaga