Patents by Inventor Masatoshi Arisawa

Masatoshi Arisawa 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: 5120464
    Abstract: A detergent composition comprising a phosphate-type surface active agent and an alkyl saccharide-type surface active agent is described. The phosphate-type surface active agent which can be used have the following formula (I) or (II), and the alkyl saccharide-type surface active agent have the following formula (III): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 represent a linear or branched alkyl, alkenyl group, or alkyl phenyl groups of a C.sub.8-18 carbon atom content, X and Y represent a hydrogen atom, an alkali metal, an ammonium, or an alkanol amine having a hydroxyl alkyl group of a C.sub.2-3 carbon atom content, R.sub.5 represents an alkylene group of a C.sub.2-4 carbon atom content, G represents a reduced sugar of a C.sub.5-6 carbon atom content, and 1, m, n, and p denote a value of 0 to 10. The detergent composition exhibits exceptionally good detergent capability and foaming capability.
    Type: Grant
    Filed: May 29, 1991
    Date of Patent: June 9, 1992
    Assignee: Kao Corporation
    Inventors: Jun Kamegai, Masatoshi Arisawa
  • Patent number: 5062989
    Abstract: A detergent composition comprising a phosphate-type surface active agent and an alkyl saccharide-type surface active agent is described. The phosphate-type surface active agent which can be used have the following formula (I) or (II), and the alkyl saccharide-type surface active agent have the following formula (III): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 represent a linear or branched alkyl, alkenyl group, or alkyl phenyl groups of a C.sub.8-18 carbon atom content, X and Y represent a hydrogen atom, an alkali metal, an ammonium, or an alkanol amine having a hydroxyl alkyl group of a a C.sub.2-3 carbon atom content, R.sub.5 represents an alklene group of a C.sub.2-4 carbon atom content, G represents a reduced sugar of a C.sub.5-6 carbon atom content, and l, m, n, and p denote a value of 0 to 10. The detergent composition exhibits exceptionaly good detergent capability and foaming capability.
    Type: Grant
    Filed: January 10, 1989
    Date of Patent: November 5, 1991
    Assignee: Kao Corporation
    Inventors: Jun Kamegai, Masatoshi Arisawa
  • Patent number: 4968450
    Abstract: A detergent composition comprises(A) a nonionic surfactant represented by the general formula (I): ##STR1## and having an HLB value of 3 or above but below 8, and (B) a phosphate surfactant represented by the general formula (II) or (III): ##STR2## or at least one lowly irritant anionic surfactant selected from among (i) N-acylglutamate surfactants,(ii) isethionate surfactants, and(iii) sulfosuccinate surfactants.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: November 6, 1990
    Assignee: Kao Corporation
    Inventors: Jun Kamegai, Yasushi Kajihara, Masatoshi Arisawa
  • Patent number: 4904405
    Abstract: An aerosol preparation containing a cleansing agent and a propellant is provided. The cleansing agent is composed of a phosphate ester surfactant obtained by mixing two alkylphosphate salts a weight ratio of from 70:30 to 20:80. The first alkylphosphate salt is represented by: ##STR1## wherein R.sub.1 means a C.sub.12-14 hydrocarbon group, X denotes a specific cation, n1 is 0-10, A is R.sub.2 O--CH.sub.2 CH.sub.2 O).sub.n2 or --OY, R.sub.2 having the same meaning as R.sub.1, Y denoting a specific cation, and n2 being a value of 0-10. The second alkylphosphate salt is represented by: ##STR2## wherein R.sub.3 is similar to R.sub.1 and R.sub.2 except for inclusion of more carbon atoms, m1 is 0-10, B denotes R.sub.4 O-- --CH.sub.2 CH.sub.2 O).sub.m2 or --OY, R.sub.4 having the same meaning as R.sub.3, m2 being 0-10 and Y having the same meaning as defined above, X has the same meaning as defined above.
    Type: Grant
    Filed: February 28, 1989
    Date of Patent: February 27, 1990
    Assignee: Kao Corporation
    Inventors: Yasushi Kajihara, Noriyoshi Fujisawa, Masatoshi Arisawa
  • Patent number: 4369134
    Abstract: A creamy cleansing composition comprises the following four components: (A) one or more phosphoric ester surfactants, (B) an organic or inorganic salt, (C) polyethylene glycol and (D) an ethylene oxide addition type non-ionic surface active agent or a cationic surface active agent. The cleansing composition is gentle to the skin or hair, and stable without separation for a long period of time.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: January 18, 1983
    Assignee: Kao Soap Co., Ltd.
    Inventors: Katsuhiko Deguchi, Masatoshi Arisawa, Atsuo Ishida, Katsuaki Ooshima
  • Patent number: 4235733
    Abstract: An antibacterial soap comprising 2,4,4'-trichloro-2'-hydroxydiphenylether in a range of 0.05 to 5% by weight and at least one organic phosphoric ester represented by the formula, ##STR1## wherein R represents an alkyl group having 8 to 20 carbon atoms, or a group of ##STR2## in which R.sub.1 is an alkyl group having 8 to 20 carbon atoms, R.sub.2 is a hydrogen atom or a methyl group, and n is an integer of 1 to 10; R' represents the same group as R, or a hydrogen atom or an alkali metal; and M represents a hydrogen atom or an alkali metal exerts a wide range of antibacterial activities and marked resistance to discoloration upon exposure to sunlight.
    Type: Grant
    Filed: July 11, 1979
    Date of Patent: November 25, 1980
    Assignee: Kao Soap Co., Ltd.
    Inventors: Hiroshi Watanabe, Masatoshi Arisawa