Patents by Inventor Yumio Nakasone

Yumio Nakasone 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).

  • Process for cleaning clothes
    Patent number: 5122158
    Abstract: A method and device for speeding-up and enhancing the cleaning of soiled parts of clothes by rub-coating with an enzyme-containing liquid detergent by means of a porous body made of heated and sintered synthetic plastic material.
    Type: Grant
    Filed: January 6, 1989
    Date of Patent: June 16, 1992
    Assignee: Kao Corporation
    Inventors: Muthumi Kuroda, Akira Suzuki, Kazuo Iguchi, Yumio Nakasone
  • Method of treating drains
    Patent number: 4088596
    Abstract: A drain cleaner composition comprising an inorganic peroxide has a high cleaning effect and is suitable for cleaning drainpipes, traps, filter pipes and the like. This composition does no harm to human bodies and it can be stored and used with safety, and it does not exert a corrosive action on metallic pipes and other metallic objects. The cleaning effect of this composition is enhanced when a heat-treated inorganic peroxide is used or when a surface active agent is used in combination with the inorganic peroxide.
    Type: Grant
    Filed: January 13, 1977
    Date of Patent: May 9, 1978
    Assignee: Kao Soap Co., Ltd.
    Inventors: Haruhiko Arai, Yumio Nakasone
  • Acidic cleaning composition
    Patent number: 4013579
    Abstract: An acidic cleaning composition comprising at least 0.1 weight percent of at least one member selected from the group consisting of furan-carboxylic acid and derivatives thereof having the following formula I and tetrahydrofuran-carboxylic acid and derivatives thereof having the following formula II ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are hydrogen, --COOH, --CH.sub.3, --C.sub.2 H.sub.5 or --OH with the proviso that at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is --COOH.
    Type: Grant
    Filed: May 31, 1974
    Date of Patent: March 22, 1977
    Assignee: Kao Soap Co., Ltd.
    Inventors: Yumio Nakasone, Miwako Abe, Hiroshi Mizutani
  • Acidic cleaning composition
    Patent number: 3953352
    Abstract: An acidic cleaning composition comprising at least 0.1 weight percent of pyrrolidone-carboxylic acid or derivatives thereof having the following formula ##EQU1## wherein R.sub.1, R.sub.2 and R.sub.3 are hydrogen, --COOH, --CH.sub.3, --C.sub.2 H.sub.5 or --OH with the proviso that at least one of R.sub.1, R.sub.2 and R.sub.3 is --COOH, and R.sub.4 is hydrogen, --CH.sub.3 or --C.sub.2 H.sub.5.
    Type: Grant
    Filed: May 31, 1974
    Date of Patent: April 27, 1976
    Assignee: Kao Soap Co., Ltd.
    Inventors: Hiroshi Mizutani, Miwako Abe, Yumio Nakasone