Patents by Inventor Shuji Takana

Shuji Takana 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).

  • Granules for carrying surfactant and method for producing the same
    Patent number: 6864221
    Abstract: The present invention relates to particles for supporting a surfactant and a process for preparing the same. Further, the present invention relates to high-density detergent particles using the particles for supporting a surfactant, and a process for preparing the same.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: March 8, 2005
    Assignee: Kao Corporation
    Inventors: Shuji Takana, Hitoshi Takaya, Hiroki Yamaboshi, Yoichi Sugiyama, Hiroshi Kitagaito, Shu Yamaguchi, Hiroyuki Yamashita
  • Process for producing granules for supporting surfactant
    Patent number: 6849590
    Abstract: The present invention relates to a process for preparing particles for supporting a surfactant, comprising a step of giving a defect to a coating film containing a water-soluble component, wherein the coating film is formed on surfaces of raw material particles; and a process for preparing detergent particles comprising a step of mixing a surfactant composition and the particles for supporting a surfactant obtained by the above process, under conditions that the surfactant composition shows a liquid state. By using the process of the present invention, there can be obtained particles for supporting a surfactant, in which the supporting ability of the particles is improved, without lowering the detergency. In addition, by using the particles for supporting a surfactant, there can be obtained detergent particles having excellent detergency.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: February 1, 2005
    Assignee: KAO Corporation
    Inventors: Hiroki Yamaboshi, Shuji Takana, Teruo Kubota, Hitoshi Takaya, Hiroyuki Yamashita, Hideichi Nitta
  • Granules for carrying surfactant and method for producing the same
    Patent number: 6734156
    Abstract: The present invention relates to particles for supporting a surfactant and a process for preparing the same. Further, the present invention relates to high-density detergent particles using the particles for supporting a surfactant, and a process for preparing the same.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: May 11, 2004
    Assignee: Kao Corporation
    Inventors: Shuji Takana, Hitoshi Takaya, Hiroki Yamaboshi, Yoichi Sugiyama, Hiroshi Kitagaito, Shu Yamaguchi, Hiroyuki Yamashita
  • Process for producing granules for surfactant support
    Publication number: 20030004086
    Abstract: To provide particles for supporting a surfactant which are excellent in the supporting ability (supporting capacity/supporting strength) of the liquid surfactant composition and a process for preparing the same; detergent particles prepared by using the particles for supporting a surfactant; and a detergent composition comprising the detergent particles. According to the present invention, there are provided particles for supporting a surfactant having excellent supporting abilities (supporting capacity/supporting strength) of a surfactant composition; detergent particles having high quality and high deterging performance, and further having excellent hue; and a detergent composition comprising the detergent particles.
    Type: Application
    Filed: April 1, 2002
    Publication date: January 2, 2003
    Inventors: Shuji Takana, Shu Yamaguchi, Fumihiko Nakamura, Shouji Tanaka, Tadanori Yoshimura, Hitoshi Takaya
  • Detergent particles
    Publication number: 20020155977
    Abstract: To provide detergent particles having high-speed dissolution capable of dissolving quickly in water after supplying the detergent particles in water, and a method for preparing the detergent particles, and a detergent composition comprising the detergent particles. Detergent particles having an average particle size of from 150 to 500 &mgr;m and a bulk density of 500 g/liter or more, wherein the detergent particles comprising a detergent particle being capable of releasing a bubble from an inner portion of the detergent particles in a process of dissolving the detergent particle in water, the bubble having a size of one-tenth or more of a particle size of the detergent particle, and wherein the detergent particles have a dissolution rate as calculated by Equation (1) of 90% or more, under conditions where the detergent particles are supplied in water at 5° C.
    Type: Application
    Filed: February 5, 2002
    Publication date: October 24, 2002
    Inventors: Teruo Kubota, Hitoshi Takaya, Shu Yamaguchi, Hiroyuki Yamashita, Shuji Takana
  • Detergent particles
    Patent number: 6376453
    Abstract: To provide detergent particles having high-speed dissolution capable of dissolving quickly in water after supplying the detergent particles in water, and a method for preparing the detergent particles, and a detergent composition comprising the detergent particles. Detergent particles having an average particle size of from 150 to 500 &mgr;m and a bulk density of 500 g/liter or more, wherein the detergent particles comprising a detergent particle being capable of releasing a bubble from an inner portion of the detergent particles in a process of dissolving the detergent particle in water, the bubble having a size of one-tenth or more of a particle size of the detergent particle, and wherein the detergent particles have a dissolution rate as calculated by Equation (1) of 90% or more, under conditions where the detergent particles are supplied in water at 5° C.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: April 23, 2002
    Assignee: Kao Corporation
    Inventors: Teruo Kubota, Hitoshi Takaya, Shu Yamaguchi, Hiroyuki Yamashita, Shuji Takana