Patents by Inventor Ryuichiro Kuwana

Ryuichiro Kuwana 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).

  • Hair growth promoter comprising extract of mulberry root bark and persimmon and/or paulownia, or extract of persimmon and paulownia
    Patent number: 5674497
    Abstract: The hair growth promoter of the present invention contains extracts from two or three of mulberry bark (mulberry root bark of Morus bombycis Koidzumi and Morus alba Linne or a plant of the same genus as that of them), leaves of persimmon (Diospyros Kaki Thunb) and leaves of paulownia (Paulowinia tomantosa Steud. or plants of the same genus as that thereof) as the active ingredients for restoring or growing hair.The hair growth promoter of the present invention has an effect of accelerating the proliferation of the human hair follicle cells which constitute the human hair follicle and which form the hair and also an effect of accelerating the hair growth in mice. When the hair growth promoter is applied to the human beings, excellent effects of preventing the hair from falling out and accelerating the hair growth are obtained. Thus, the hair growth promoter of the present invention is effectively usable for the treatment or prevention of an alopecia such as premature alopecia or alopecia diffuse.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: October 7, 1997
    Assignee: Fuji Sangyo Co., Ltd.
    Inventors: Ryuichiro Kuwana, Atsunori Okada, Masafumi Morioka, Akemi Date