Patents by Inventor Mitsuko Fujiwara

Mitsuko Fujiwara 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).

  • Mild antimicrobial liquid cleansing formulations comprising hydroxy acid buffering compound or compounds as potentiator of antimicrobial effectiveness
    Patent number: 6071866
    Abstract: Liquid skin cleansing compositions comprising (1) mild surfactant systems; (2) 0.5% to 9% by wt. of a hydroxy carboxylic compound or compounds which buffer the pH of the composition; (3) an antibacterial agent and (4) 1% to 99% water to potentiate the bactericidal activity are provided.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: June 6, 2000
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Mitsuko Fujiwara, Carol Kregler Vincent, Kavssery Ananthapadmanabhan, Virgilio Villa
  • Mild antimicrobial liquid cleansing formulations comprising polyvalent cation or cations for improving an antimicrobial effectiveness
    Patent number: 6034043
    Abstract: The present invention relates to liquid skin cleansing compositions comprising (1) mild surfactant systems; (2) 0.1 to 10% by wt. of a polyvalent cation or cations selected from the group consisting of zinc, copper, tin, aluminum cobalt, nickel, chromium, titanium and/or manganese and mixture thereof; and (3) 1% to 99% water wherein said cation or cations provide antibacterial activity. In a second embodiment of the invention, the cation or cations potentiates antibacterial effect in compositions already containing an antibacterial agent. In a third embodiment, the invention relates to a method of enhancing antibacterial effect using these polyvalent cation or cations.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: March 7, 2000
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Mitsuko Fujiwara, Carol Vincent, Kavssery Ananthapadmanabhan
  • Mild antimicrobial liquid cleansing formulations comprising polyvalent cation or cations for improving antimicrobial effectiveness
    Patent number: 6017861
    Abstract: The present invention relates to liquid skin cleansing compositions comprising (1) mild surfactant systems; (2) 0.1 to 10% by wt. of a polyvalent cation or cations selected from the group consisting of zinc, copper, tin, aluminum cobalt, nickel, chromium, titanium and/or manganese and mixture thereof; and (3) 1% to 99% water wherein said cation or cations provide antibacterial activity. In a second embodiment of the invention, the cation or cations potentiates antibacterial effect in compositions already containing an antibacterial agent. In a third embodiment, the invention relates to a method of enhancing antibacterial effect using these polyvalent cation or cations.
    Type: Grant
    Filed: August 6, 1996
    Date of Patent: January 25, 2000
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Mitsuko Fujiwara, Carol Vincent, Kavssery Ananthapadmanabhan
  • Soap bars having quick kill capacity and methods of enhancing such capacity
    Patent number: 6007831
    Abstract: The present invention relates to soap bar compositions in which, by carefully selecting components that are highly surface active, yet soluble enough to deliver antibacterial effect, applicants are able to provide enhance quick-kill (i.e., 60 seconds or less).
    Type: Grant
    Filed: January 8, 1998
    Date of Patent: December 28, 1999
    Assignee: Lever Brothers Company
    Inventors: Mitsuko Fujiwara, Carol Vincent, Kavssery Ananthapadmanabhan, Michael Paul Aronson
  • Mild antimicrobial liquid cleansing formulations comprising hydroxy acid buffering compound or compounds as potentiator of antimicrobial effectiveness
    Patent number: 5914300
    Abstract: Liquid skin cleansing compositions comprising (1) mild surfactant systems; (2) 0.5% to 9% by wt. of a hydroxy carboxylic compound or compounds which buffer the pH of the composition; and (3) 1% to 99% water to potentiate the bactericidal activity. In a second embodiment of the invention, the buffering compound or compounds potentiates antibacterial effect in compositions already containing an antibacterial agent.
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: June 22, 1999
    Assignee: Lever Brothers Company
    Inventors: Mitsuko Fujiwara, Carol Vincent, Kavssery Ananthapadmanabhan, Virgilio Barba Villa
  • Mild antimicrobial liquid cleansing formulations comprising buffering compound or compounds as potentiator of antimicrobial effectiveness
    Patent number: 5681802
    Abstract: A liquid skin cleansing composition comprises (1) mild surfactant systems; (2) 0.1 to 10% by wt. of a compound or compounds which buffer the pH of the composition; and (3) 1% to 99% water to potentiate the bactericidal activity. In a second embodiment of the invention, the buffering compound or compounds potentiates antibacterial effect in compositions already containing an antibacterial agent.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: October 28, 1997
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Mitsuko Fujiwara, Carol Vincent, Kavssery Ananthapadmanabhan, Virgilio Villa
  • Deposition of materials to surfaces using zwitterionic carrier particles
    Patent number: 5476660
    Abstract: Compositions to deposit an active substance on a target surface (i.e. fabric, sun, hair, teeth). The active substance is left on the surface, after the product is rinsed off the surface. The preferred deposition is from compositions containing an anionic or nonionic active in the co-presence of an anionic surfactant. The compositions contain carrier particles having a zwitterionic or cationic surface and a plurality of outwardly protruding filaments containing charged organocarbyl groups. The active substance is contained within the carrier particles.
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: December 19, 1995
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Ponisseril Somasundaran, Kavssery P. Ananthapadmanabhan, Mitsuko Fujiwara, Liang S. Tsaur