Patents by Inventor Kazunori Aizawa

Kazunori Aizawa 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: 6946437
    Abstract: An anionic surfactant powder prepared by subjecting a mixture of an anionic surfactant and a solvent to microwave irradiation to remove at least a part of the solvent, and a process for preparing the anionic surfactant. The anionic surfactant powder can be suitably used for laundry detergents, detergents for tableware and kitchenware, foaming agents for toothpastes, powdery shampoos, emulsifying agents for polymerization, foaming agents for cement plaster and the like.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: September 20, 2005
    Assignee: KAO Corporation
    Inventors: Kazunori Aizawa, Kazuhito Miyoshi, Osamu Tabata
  • Patent number: 6710199
    Abstract: A process for preparing a phosphoric ester having reduced odor, comprising contacting a phosphoric ester with at least one of an inert gas and steam at 100° to 160° C. in a packed tower; a process for preparing a phosphoric ester having reduced odor, comprising repeating a set of processes comprising (A) heating a phosphoric ester, and contacting the heated phosphoric ester with at least one of an inert gas and steam; and (B) cooling the phosphoric ester obtained in the step (A); a process for preparing a phosphoric ester having reduced odor, comprising adding water to a phosphoric ester, and distilling water from the phosphoric ester under reduced pressure; and a process for preparing a phosphoric ester having reduced odor, comprising reacting an organic hydroxy compound with a phosphorylation agent, while introducing an inert gas into the mixture of the organic hydroxy compound and the phosphorylation agent.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: March 23, 2004
    Assignee: Kao Corporation
    Inventors: Shinji Tsuyutani, Kengo Shibata, Kazunori Aizawa, Masaru Sakata, Mitsugu Morishita
  • Publication number: 20030065205
    Abstract: A process for preparing a phosphoric ester having reduced odor, comprising contacting a phosphoric ester with at least one of an inert gas and steam at 100° to 160° C. in a packed tower; a process for preparing a phosphoric ester having reduced odor, comprising repeating a set of processes comprising (A) heating a phosphoric ester, and contacting the heated phosphoric ester with at least one of an inert gas and steam; and (B) cooling the phosphoric ester obtained in the step (A); a process for preparing a phosphoric ester having reduced odor, comprising adding water to a phosphoric ester, and distilling water from the phosphoric ester under reduced pressure; and a process for preparing a phosphoric ester having reduced odor, comprising reacting an organic hydroxy compound with a phosphorylation agent, while introducing an inert gas into the mixture of the organic hydroxy compound and the phosphorylation agent.
    Type: Application
    Filed: May 30, 2002
    Publication date: April 3, 2003
    Applicant: KAO CORPORATION
    Inventors: Shinji Tsuyutani, Kengo Shibata, Kazunori Aizawa, Masaru Sakata, Mitsugu Morishita
  • Publication number: 20020107167
    Abstract: An anionic surfactant powder prepared by subjecting a mixture of an anionic surfactant and a solvent to microwave irradiation to remove at least a part of the solvent, and a process for preparing the anionic surfactant. The anionic surfactant powder can be suitably used for laundry detergents, detergents for tableware and kitchenware, foaming agents for toothpastes, powdery shampoos, emulsifying agents for polymerization, foaming agents for cement plaster and the like.
    Type: Application
    Filed: October 23, 2001
    Publication date: August 8, 2002
    Inventors: Kazunori Aizawa, Kazuhito Miyoshi, Osamu Tabata
  • Patent number: 5696247
    Abstract: A method for producing an alkylglycoside by a reaction of a saccharide and a monohydric alcohol, the method comprising the steps of carrying out the reaction of the saccharide and the monohydric alcohol; adjusting a reaction mixture containing an unreacted monohydric alcohol and an alkylglycoside produced to a pH of 2 to 6.5; and removing the unreacted monohydric alcohol from the reaction mixture by distillation to obtain the alkylglycoside, wherein decoloration treatment may be carried out before removing the unreacted monohydric alcohol.
    Type: Grant
    Filed: January 23, 1996
    Date of Patent: December 9, 1997
    Assignee: Kao Corporation
    Inventors: Toyomi Koike, Kazunori Aizawa, Hiroshi Nagumo