Patents by Inventor Hiroe Tanahashi

Hiroe Tanahashi 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: 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
  • Patent number: 6121470
    Abstract: Glycine derivatives represented by the following formula (1) and cleanser compositions containing the same: ##STR1## wherein R is a linear or branched alkyl group having 11 to 13 carbon atoms, a linear or branched alkenyl group having 11 to 13 carbon atoms, or a linear or branched hydroxyalkyl group having 11 to 13 carbon atoms, and M.sub.1 and M.sub.2 are the same or different from each other and each independently is a hydrogen atom, an alkali metal atom, 1/2 (an alkaline earth metal atom), an ammonium group, a monoalkanolammonium group having 1 to 22 carbon atoms, a dialkanolammonium group having 2 to 22 carbon atoms in total, a trialkanolammonium group having 3 to 22 carbon atoms in total, or a protonated basic amino acid, are excellent in foaming, detergency, comfort in use and safety, are antipollutive and can be used for various purposes, for example, a cleanser composition for the hair and body or tableware.
    Type: Grant
    Filed: September 23, 1996
    Date of Patent: September 19, 2000
    Assignee: Kao Corporation
    Inventors: Masakatsu Takahashi, Hiromoto Mizushima, Hiroe Tanahashi, Toshio Nozaki
  • Patent number: 5869532
    Abstract: Taurine derivatives represented by the following formula (1) and cleanser compositions containing the same: ##STR1## wherein R is a linear or branched alkyl or alkenyl group having 5 to 21 carbon atoms, and M.sub.1 and M.sub.2 are the same or different from each other and each independently is a hydrogen atom, an alkali metal atom, 1/2 (an alkaline earth metal atom), an ammonium group, etc.,are excellent in foaming, detergency, comfort in use, rinsability, safety and biodegradability and are employed as a cleanser for the hair and body or tableware.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: February 9, 1999
    Assignee: Kao Corporation
    Inventors: Hiromoto Mizushima, Masakatsu Takahashi, Hiroe Tanahashi, Takashi Matsuo