Patents by Inventor Ryozi Shiozaki

Ryozi Shiozaki 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: 4840746
    Abstract: A liquid cleanser composition comprises 1 to 20 percent by weight of a surfactant and 3 to 70 percent by weight of a water-insoluble abrasive of the interpenetrated crystalline aluminosilicate zeolite crystals, composed of at least 30 crystals formed into an aggregate.
    Type: Grant
    Filed: August 17, 1987
    Date of Patent: June 20, 1989
    Assignee: Kao Corporation
    Inventors: Ryozi Shiozaki, Atsuhiko Kaji, Hiroyuki Saijo, Katsuhiko Deguchi
  • Patent number: 4284533
    Abstract: A liquid cleanser composition comprising(a) 0.1-0.6 wt. % of partially cross-linked polyacrylic acid having an average degree of polymerization of 10.sup.3 -10.sup.5 and a Brookfield yield value of higher than 100 g/sec.cm.,(b) 1-10 wt. % of a hydrotrope of the formula (I) or the formula (II):ROH (I)wherein R represents an alkyl group of 1-3 carbon atoms, orR'--O--(R"O).sub.n H (II)wherein R' represents hydrogen, an alkyl group of 1-4 carbon atoms, phenyl group or benzyl group, R" represents ethylene group, propylene group or a mixture of them, and n represents an average addition mole number and n is 1-20 when R' is hydrogen, and n is 1-3 when R' is a group of other than hydrogen,(c) 0.5-10 wt. % of a nonionic surfactant having an HLB of 10-17, andthe remainder comprises at least one water-insoluble abrasive, water and a pH regulator effective to maintain the composition at a pH of 5-9.
    Type: Grant
    Filed: March 17, 1980
    Date of Patent: August 18, 1981
    Assignee: Kao Soap Co., Ltd.
    Inventors: Tetsuya Imamura, Ryozi Shiozaki