Patents by Inventor Hideyuki Hanazawa

Hideyuki Hanazawa 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: 6551971
    Abstract: A detergent composition contains the following components (a) and (b): (a) an amphoteric surfactant 2 to 35 wt. %, (b) a compound which is other than the component (a) 6 to 40 wt. %. and contains, in its molecule, a carboxyl group and an amino group or a quaternary ammonium group This composition is easily thickened without using a thickener, and has excellent temperature stability and washing with it imparts the skin with good touch feeling.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: April 22, 2003
    Assignee: Kao Corporation
    Inventors: Sayaka Inaba, Hideyuki Hanazawa
  • Patent number: 6451327
    Abstract: The invention relates to a substantially nonaqueous skin cleansing composition comprising a granulated product obtained by granulating particles of a surfactant selected from the group consisting of nonionic surfactants, amphoteric surfactants and anionic surfactants with a binder. The composition scarcely causes damage to and itch on the skin, can give an effective massaged feeling and has excellent cleanability.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: September 17, 2002
    Assignee: Kao Corporation
    Inventors: Kiyoko Nakagaki, Masaaki Moriyama, Hiroe Tanahashi, Tomoko Umezawa, Hideyuki Hanazawa
  • Publication number: 20020119908
    Abstract: A detergent composition contains the following components (a) and (b): 1 (a) an amphoteric surfactant 2 to 35 wt. %, (b) a compound which is other than the component (a) 6 to 40 wt. %.
    Type: Application
    Filed: February 20, 2002
    Publication date: August 29, 2002
    Applicant: Kao Corporation
    Inventors: Sayaka Inaba, Hideyuki Hanazawa
  • Patent number: 6432896
    Abstract: A detergent composition contains the following components (a) and (b): (a) an amphoteric surfactant 2 to 35 wt. %, (b) a compound which is other than the component (a) and contains, in its molecule, a carboxyl group and an amino group or a quaternary ammonium group 6 to 40 wt. %. This composition is easily thickened without using a thickener, and has excellent temperature stability and washing with it imparts the skin with good touch feeling.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: August 13, 2002
    Assignee: Kao Corporation
    Inventors: Sayaka Inaba, Hideyuki Hanazawa
  • Publication number: 20010029243
    Abstract: The invention relates to disintegrating particles formed by agglomerating primary particles at least part of which are insoluble in water, wherein the agglomeration of the disintegrating particles is disintegrated in an aqueous solution containing a water-soluble salt by lowering the concentration of the water-soluble salt. The invention also relates to a cleanser or detergent composition that includes the disintegrating particles, a water-soluble salt at a concentration lower than its saturated solubility, a surfactant and water. The composition has excellent physical (mechanical) cleanability and stability with time and gives users a pleasant feeling upon use. The composition does not cause damage to and itch on the skin because the disintegrating particles are disintegrated during cleansing and rinsing, and it is extremely good in rinsability.
    Type: Application
    Filed: May 28, 1999
    Publication date: October 11, 2001
    Inventors: ZENBEI MEIWA, MAMORU NAKAMURA, TATSUKI MATSUMOTO, YOSHIHIRO HASEBE, HIDEYUKI HANAZAWA, RITSUKO YAMAZAKI
  • Patent number: 6294509
    Abstract: The invention relates to disintegrating particles formed by agglomerating primary particles at least part of which are insoluble in water, wherein the agglomeration of the disintegrating particles is disintegrated in an aqueous solution containing a water-soluble salt by lowering the concentration of the water-soluble salt. The invention also relates to a cleanser or detergent composition that includes the disintegrating particles, a water-soluble salt at a concentration lower than its saturated solubility, a surfactant and water. The composition has excellent physical (mechanical) cleanability and stability with time and gives users a pleasant feeling upon use. The composition does not cause damage to and itch on the skin because the disintegrating particles are disintegrated during cleansing and rinsing, and it is extremely good in rinsability.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: September 25, 2001
    Assignee: Kao Corporation
    Inventors: Zenbei Meiwa, Mamoru Nakamura, Tatsuki Matsumoto, Yoshihiro Hasebe, Hideyuki Hanazawa, Ritsuko Yamazaki
  • Patent number: 5853611
    Abstract: The present invention relates to a polyether polymer having structural units represented by general formula (1), wherein R.sup.1 and R.sup.2 mean individually an alkyl group of 1-20 carbon atoms, which may have at least one hydroxyl group, and Y denotes an alkylene group of 1-10 carbon atoms, which may have a hydroxyl group, a preparation process thereof, and a moisturizer, a cosmetic composition and a detergent composition comprising this polymer. The cosmetic composition and detergent composition are excellent in moisture retention, keep up the moisturizing effect over a long period of time and give users a pleasant feeling.
    Type: Grant
    Filed: September 11, 1997
    Date of Patent: December 29, 1998
    Assignee: Kao Corporation
    Inventors: Hiroshi Kawamukai, Katsuhiko Rindo, Takashi Oda, Masaaki Moriyama, Hideyuki Hanazawa, Yasushi Kajihara
  • Patent number: 5712232
    Abstract: An aqueous liquid cleansing composition, packaged in a foamer container, said composition comprising:(A) from 5 to 50% by weight of an anionic carboxylate surfactant; and(B) from 0.1 to 5% by weight of a salt.The aqueous liquid cleansing composition of the present invention shows an extremely low viscosity increase at a low temperature and can be easily pushed out from the foamer container even at a low temperature thus giving uniform foam. It is particularly suitable for a skin cleanser.
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: January 27, 1998
    Assignee: Kao Corporation
    Inventors: Masaaki Moriyama, Hisateru Tanabe, Hideyuki Hanazawa, Yasushi Kajihara
  • Patent number: 5057311
    Abstract: A low-irritation detergent composition comprising (A) an alkyl saccharide-type surface active agent and (B) a cationic polymer. The composition is a low irritant to the skin and hair, produces excellent creamy foam, possesses a superior hair conditioning effect, and imparts an outstanding moisture feeling to the skin.
    Type: Grant
    Filed: March 29, 1989
    Date of Patent: October 15, 1991
    Assignee: Kao Corporation
    Inventors: Jun Kamegai, Hideyuki Hanazawa, Hajime Hirota