Patents by Inventor Yoshihito Kadoma

Yoshihito Kadoma 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).

  • Fumaric acid derivative and polymer therefrom
    Patent number: 5723558
    Abstract: A polymer obtained by polymerizing a fumaric acid derivative represented by the following general formula (1): ##STR1## in which R.sup.1 represents an alkyl group having 1-6 carbon atoms and A denotes a radical of ##STR2## in which R.sup.2 and R.sup.3 represent each an alkyl group having 1-4 carbon atoms and may be identical with or different from each other, R.sup.4 denotes an alkyl group having 1-6 carbon atoms or a benzyl group and m and n denote each an integer of 1-6.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: March 3, 1998
    Assignee: NOF Corporation
    Inventors: Tsutomu Oishi, Akio Hayashi, Yoshihito Kadoma
  • Reactive vesicle and functional substance-fixed vesicle
    Patent number: 5540935
    Abstract: A reactive vesicle comprising, as a vesicle-forming component, a reactive phospholipid derivative represented by the following general formula (1) and a functional substance-fixed vesicle prepared by reacting the reactive vesicle with a functional substance: ##STR1## in which R.sup.1 C(.dbd.O) and R.sup.2 C(.dbd.O) each represent an aliphatic acyl group, R.sup.3 denotes hydrogen atom or methyl group, OA represents an oxyalkylene group of 2-4 carbon atoms, n indicates the average number of moles of added oxyalkylene group and is 1-1,000, p is 0 or 1, X represents ##STR2## with q and r each being an integer of 0 to 4 or 1 to 4, respectively, and M denotes hydrogen atom or an alkli metal atom.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: July 30, 1996
    Assignee: NOF Corporation
    Inventors: Tsuyoshi Miyazaki, Kazuo Maruyama, Motoharu Iwatsuru, Kouzoh Sanchika, Mitsuhiro Nishida, Tohru Yasukohchi, Shigeru Kitano, Akinori Suginaka, Yoshihito Kadoma
  • Phospholipid derivative and reactive vesicle-forming agent
    Patent number: 5463066
    Abstract: A novel and useful phospholipid derivative to be used for a reactive vesicle-forming agent, which is represented by the following general formula (1): ##STR1## in which R.sup.1 C(.dbd.O) and R.sup.2 C(.dbd.O) represent each an aliphatic acyl group, R.sup.3 denotes hydrogen atom or methyl group, OA represents an oxyalkylene group of 2-4 carbon atoms, n indicates the average addition mole number of added oxyalkylene group and is 1-1,000, p is 0 or 1, X represents ##STR2## with q and r being each an integer of 0 to 4 or 1 to 4, respectively, and M denotes hydrogen atom or an alkali metal atom.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: October 31, 1995
    Assignee: NOF Corporation
    Inventors: Tsuyoshi Miyazaki, Kouzoh Sanchika, Mitsuhiro Nishida, Tohru Yasukohchi, Shigeru Kitano, Akinori Suginaka, Yoshihito Kadoma
  • Aqueous rust inhibitor composition
    Patent number: 4888132
    Abstract: An aqueous rust inhibitor containing a soap of a hydroxyaryl fatty acid and an alkali metal. The inhibitor exhibits good rust inhibiting effects without emitting any malodor.
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: December 19, 1989
    Assignee: Nippon Oil and Fats Co., Ltd.
    Inventors: Hitoshi Kohashi, Nobuhiko Shizuka, Yoshihito Kadoma