Patents by Inventor Kazuo Tokubo

Kazuo Tokubo 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).

  • Spherical clay mineral powder, process for production thereof and composition containing the same
    Patent number: 5165915
    Abstract: A spherical clay mineral powder or spherical composite powder comprising water-swellable clay mineral with specific surface are of 100 m.sup.2 /g or more is provided, and the composite powder can contain an organic, inorganic or metal powder, an organic substance soluble in an organic solvent or a water-soluble substance, and these spherical powders can be formulated effectively in, for example, cosmetics.
    Type: Grant
    Filed: June 19, 1990
    Date of Patent: November 24, 1992
    Assignee: Shiseido Company Ltd.
    Inventors: Kazuo Tokubo, Michihiro Yamaguchi, Jyunko Suzuki, Toshio Yoshioka, Fujihiro Kanda, Minoru Fukuda, Toshihide Ikeda, Takeshi Kawaura, Yoshiaki Yagita
  • Water-in-oil emulsion type cosmetic composition
    Patent number: 5064644
    Abstract: A water-in-oil emulsion type cosmetic composition comprising 0.1% to 20% by weight of a propylene oxide-ethylene oxide addition product having the general formula (I): ##STR1## wherein a is an integer of 7 to 19, b is an integer of a+2, m is an average addition mol number of 5 to 30, and n is an average addition mol number of 5 to 30, and 0.01% to 20% by weight of an iron oxide.This water-in-oil emulsion type cosmetic composition has excellent emulsification stability and excellent dispersion stabililty of an iron oxide pigment at a wide temperature range.
    Type: Grant
    Filed: September 24, 1990
    Date of Patent: November 12, 1991
    Assignee: Shiseido Company Ltd.
    Inventors: Hideo Nakajima, Kiyoshi Kawada, Kazuo Tokubo
  • Modified powder or particulate material
    Patent number: 4882225
    Abstract: A modified powder or particulate material having a silicone polymer film coated on substantially the entire surface thereof, this powder or particulate material being produced by bringing at least one silicone compound, in the form of a vapor, having the general formula (I):(R.sup.1 HSiO).sub.a (R.sup.2 R.sup.3 SiO).sub.b (R.sup.4 R.sup.5 R.sup.6 SiO.sub.1/2).sub.c (I)Wherein R.sup.1, R.sup.2, and R.sup.3 represent, independently, hydrogen or a hydrocarbon residue having 1 to 10 carbon atoms, which may be substituted with at least one halogen atom, provided that R.sup.1, R.sup.2, and R.sup.3 are not hydrogen at the same time, R.sup.4, R.sup.5, and R.sup.
    Type: Grant
    Filed: April 26, 1988
    Date of Patent: November 21, 1989
    Assignee: Shiseido Company Ltd.
    Inventors: Hiroshi Fukui, Ryujiro Namba, Tsutomu Saito, Yutaka Ohtsu, Asa Kimura, Motokiyo Nakano, Okitsugu Nakata, Kenichi Tommita, Kazuo Tokubo, Kazuhisa Ohno, Toshio Yoneyama, Takashi Ogawa, Hideo Morohoshi, Junichi Koyama, Taketoshi Kanda, Kunihiro Kawaguchi, Yuzo Shimizu
  • Modified powder
    Patent number: 4818614
    Abstract: A modified powder or particulate material coated on substantially the entire surface thereof with a film of a silicone polymer carrying a pendant group thereon, this powder or particulate material being produced by a process comprising the steps of(a) coating the powder or particulate material with a film of a silicone polymer having at least one Si-H moiety, and(b) carrying out an addition reaction of a compound capable of reacting with an Si--H moiety to the Si--H moiety in the silicone polymer of step (a), whereby the pendant group derived from said compound is bonded to the silicone polymer.
    Type: Grant
    Filed: July 25, 1986
    Date of Patent: April 4, 1989
    Assignee: Shiseido Company Ltd.
    Inventors: Hiroshi Fukui, Ryujiro Namba, Tsutomu Saito, Yutaka Ohtsu, Asa Kimura, Motokiyo Nakano, Okitsugu Nakata, Kenichi Tomita, Kazuo Tokubo, Kazuhisa Ohno, Toshio Yoneyama, Takashi Ogawa, Hideo Morohoshi, Junichi Koyama, Taketoshi Kanda, Kunihiro Kawaguchi, Yuzo Shimizu
  • Cosmetic compositions containing modified powder or particulate material
    Patent number: 4801445
    Abstract: A modified powder or particulate material having a silicone polymer film coated on substantially the entire surface thereof, this powder or particulate material being produced by bringing at least one silicone compound, in the form of a vapor, having the general formula (I):(R.sup.1 HSiO).sub.a (R.sup.2 R.sup.3 SiO).sub.b (R.sup.4 R.sup.5 R.sup.6 SiO.sub.1/2).sub.c (I)wherein R.sup.1, R.sup.2, and R.sup.3 represent, independently, hydrogen or a hydrocarbon residue having 1 to 10 carbon atoms, which may be substituted with at least one halogen atom, provided that R.sup.1, R.sup.2, and R.sup.3 are not hydrogen at the same time, R.sup.4, R.sup.5, and R.sup.
    Type: Grant
    Filed: June 17, 1986
    Date of Patent: January 31, 1989
    Assignee: Shiseido Company Ltd.
    Inventors: Hiroshi Fukui, Ryujiro Namba, Tsutomu Saito, Yutaka Ohtsu, Asa Kimura, Motokiyo Nakano, Okitsugu Nakata, Kenichi Tomita, Kazuo Tokubo, Kazuhisa Ohno, Toshio Yoneyama, Takashi Ogawa, Hideo Morohoshi, Junichi Koyama, Taketoshi Kanda, Kunihiro Kawaguchi, Yuzo Shimizu