Patents Assigned to Kao Soap Company, Ltd.
  • Patent number: 4970011
    Abstract: A lubricating oil composition containing as essential ingredients a lubricating oil component having a melting point of not higher than 100.degree. C., and one or more water-soluble dispersants selected from the group consisting of anionic polymeric dispersants of a molecular weight of 250 to 25,000, and polyoxyethylene type surfactants of a molecular weight of 3,000 to 20,000 and an HLB value of at least 18, said lubricating oil component being present in a stably dispersed state in water, achieves excellent adhesion when supplied to a machined portion.
    Type: Grant
    Filed: April 4, 1983
    Date of Patent: November 13, 1990
    Assignees: Kao Soap Company, Ltd., Nippon Kokan Kabushiki Kaisha
    Inventors: Hiroshi Kuwamoto, Yoshihiro Sakaguchi, Hiroyuki Nagamori, Yasuhiro Nakagawa
  • Patent number: 4343335
    Abstract: A method and apparatus for manufacturing a soap pad comprising winding metallic wool into a roll form, applying a soap solution internally to the roll form to cause the solution to adhere to the metallic wool, separating the metallic wool roll from the spindle and press forming the metallic wool into a desired shape.
    Type: Grant
    Filed: March 27, 1980
    Date of Patent: August 10, 1982
    Assignee: Kao Soap Company, Ltd.
    Inventors: Hisao Kobayashi, Kazuo Fujita
  • Patent number: 4306559
    Abstract: A disposable diaper comprising a urine-permeable surface sheet, a urine-impervious backing sheet and an absorbent pad interposed between said two sheets, said disposable diaper being characterized in that the urine-impervious backing sheet comprises at least two layers, the first layer being a substantially urine-impermeable, vapor-permeable sheet, and the second layer being a urine-impermeable sheet which is perforated at an aperture ratio lower than 30%, said first and second layer being integrally formed.
    Type: Grant
    Filed: February 27, 1980
    Date of Patent: December 22, 1981
    Assignee: Kao Soap Company, Ltd.
    Inventors: Kazunori Nishizawa, Toshihiro Shirase, Hiroshi Mizutani