Patents by Inventor Yasuhiro Tanikawa

Yasuhiro Tanikawa 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: 6099973
    Abstract: A pressure-sensitive magnetic transfer recording medium comprising a support and a pressure-sensitive transferable magnetic ink layer provided on the support, the pressure-sensitive transferable magnetic ink layer comprising a particulate magnetic substance, a resin and an oily substance, the resin comprising a cellulose acetate butyrate resin having a number average molecular weight of 2.0.times.10.sup.4 to 5.0.times.10.sup.4 and a glass transition point of 100.degree. to 140.degree. C., the oily substance being compatible with the cellulose acetate butyrate resin, and the mixing ratio of the cellulose acetate butyrate to the oily substance being from 3:10 to 7:5 by weight, wherein the oily substance is at least one member selected from the group consisting of an adipic acid ester, a sebacic acid ester, an azelaic acid ester and a trimethylolpropane fatty acid triester.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: August 8, 2000
    Assignee: Fujicopian Co., Ltd.
    Inventors: Kazuo Miyai, Yasuhiro Tanikawa, Kyoichi Suzuki