Patents by Inventor Masaru Suetsugu

Masaru Suetsugu 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).

  • Endermic liniment
    Patent number: 5767158
    Abstract: An endermic liniment containing at least one type of phenylalanine compound, and/or its salt, is disclosed. This endermic liniment has a melanin production suppression effect and is superior in terms of its skin whitening effect as in preventing and/or improving chloasma, freckles and pigmentation in the skin after sunburn. It is also stable and highly safe.
    Type: Grant
    Filed: February 13, 1996
    Date of Patent: June 16, 1998
    Assignee: Shiseido Co., Ltd.
    Inventors: Masaru Suetsugu, Satoshi Shinojima, Okihiko Sakamoto, Masayuki Asaike, Yuki Shibata, Rumiko Kaku, Tsuneo Suehiro
  • External preparation for skin
    Patent number: 5700784
    Abstract: An external preparation for the skin comprising at least one of the glycosides or hydroxysaliyclic acid and/or the glycosides of aliphatic esters of hydroxysalicylic acid represented by the following formula 1: ##STR1## wherein R.sub.1 represents one selected from the group consisting of saturated hydrocarbon group and an unsaturated hydrocarbon group which have 1 to 20 carbon atoms and which may be either a straight-chain or a branched chain, and one of R.sub.2 and R.sub.3 represents a sugar residue and the other hydrogen. The external preparation for the skin has an excellent whitening effect and/or an excellent skin care effect.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: December 23, 1997
    Assignee: Shiseido Co., Ltd.
    Inventors: Satoshi Shinojima, Masaru Suetsugu, Yoshihiro Morikawa, Yuki Shibata, Rumiko Kaku
  • External preparation for skin
    Patent number: 5690914
    Abstract: An external preparation for skin including one or more than two types of tranexamic acid derivatives represented by the following general formula (A). GENERAL FORMULA (A) ##STR1## (In the formula (A), R.sub.1, R.sub.2 and R.sub.3 represents hydrogen atoms or substituents and at least one of these is the substituent.) The external preparation for skin including the derivatives have excellent depigmentation effect as well as skin care effect.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: November 25, 1997
    Assignee: Shiseido Co., Ltd
    Inventors: Masaru Suetsugu, Manami Ohnuma, Yoshihiro Morikawa, Yuki Yamase, Naoe Akiyama, Kenji Kitamura
  • Magnesium aluminometasilicate coated composite powder and use thereof
    Patent number: 5182103
    Abstract: A magnesium aluminometasilicate coated composite powder which comprises magnesium aluminometasilicate, or magnesium aluminometasilicate and at least one other powder coated on a surface of a core powder and which is usable in, for example, a skin treatment agent, decodorant, and oral composition.
    Type: Grant
    Filed: June 6, 1989
    Date of Patent: January 26, 1993
    Assignee: Shiseido Company, Ltd.
    Inventors: Toshihiko Nakane, Masumi Koishi, Hiroshi Fukui, Yutaka Okunuki, Yoshio Yahata, Shigenori Kumagai, Hiroyuki Yokoyama, Eiichiro Yagi, Minoru Fukuda, Tadao Ohta, Fujihiro Kanda, Kazuhisa Ohno, Toshihide Ebisawa, Tomiyuki Nanba, Susumu Takada, Masato Hatao, Masaru Suetsugu, Toshihiro Tanaka, Osamu Moro
  • Composite powder and production process
    Patent number: 5122418
    Abstract: A composite powder wherein an organic or inorganic core powder is substantially completely covered with one or more types of organic, inorganic, or metallic powders having an average particle size one-fifth or less of the average particle size of the above core powder by means of mixing and compression. The composite powder may be manufactured by mixing and compressing the above core powder and coating powder using a ball mill or other mixer charged with a ball shaped mixing medium of an average diameter of 5 mm or less. This composite powder may be used in, for example, skin treatment agent, makeup type cosmetics, sunburn preventing cosmetics, deodorants.
    Type: Grant
    Filed: October 4, 1990
    Date of Patent: June 16, 1992
    Assignee: Shiseido Company Ltd.
    Inventors: Toshihiko Nakane, Masumi Koishi, Hiroshi Fukui, Yutaka Okunuki, Yoshio Yahata, Shigenori Kumagai, Hiroyuki Yokoyama, Eiichiro Yagi, Minoru Fukuda, Tadao Ohta, Fujihiro Kanda, Kazuhisa Ohno, Toshihide Ebisawa, Tomiyuki Nanba, Susumu Takada, Masato Hatao, Masaru Suetsugu
  • UV-ray sensitive composition and element for measuring UV-ray dose
    Patent number: 4829187
    Abstract: A UV-ray sensitive composition, comprising a photo activator forming a free radical by the irradiation of UV-rays, a discoloring agent which exhibits a color change in visible region of spectrum through the action of this free radical, and a UV-ray absorber.
    Type: Grant
    Filed: July 8, 1987
    Date of Patent: May 9, 1989
    Assignee: Shiseido Company Ltd.
    Inventors: Kenichi Tomita, Masaru Suetsugu, Minoru Fukuda, Takao Higashi, Norimichi Koizumi