Patents by Inventor Hiroichi Nagai

Hiroichi Nagai 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: 6992068
    Abstract: Highly safe cytokine production inhibitors, agents for protecting and promoting liver function, anti-inflammatory agents and immunosuppressants. Brazilian licorice extract and periandrins, which are constituents thereof, have excellent characteristics of showing effects of inhibiting cytokine production and protecting and promoting liver function, an anti-inflammatory effect and an immunosuppressive effect without any harmful side effects. Thus use of Brazilian licorice extract or periandrins as cytokine production inhibitors makes it possible to inhibit inflammations in various diseases such as rheumatoid arthritis. These substances are also usable as agents for protecting and promoting liver function, anti-inflammatory agents and immunosuppressants. Moreover, foods, cosmetics, sweeteners and food materials containing Brazilian licorice extract exert the effects as described above.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: January 31, 2006
    Assignee: Gifu Shellac Mfg., Co., Ltd.
    Inventors: Minoru Yoshida, Toshihiro Nakayama, Hiroichi Nagai, Munekazu Iinuma
  • Publication number: 20050208496
    Abstract: An objective of the present invention is to provide a method of testing for bronchial asthma or chronic obstructive pulmonary disease, a method of screening for candidate compounds for treating bronchial asthma or chronic obstructive pulmonary disease, and a pharmaceutical agent for treating bronchial asthma or chronic obstructive pulmonary disease. The present invention identified genes whose expression levels varied between respiratory epithelial cells that had been stimulated by IL-13 to induce the goblet cell differentiation, and unstimulated respiratory epithelial cells. The respiratory epithelial cells were cultured according to the air interface method. The genes were revealed to be useful as markers for testing for bronchial asthma or chronic obstructive pulmonary disease and screening for therapeutic agents for such diseases.
    Type: Application
    Filed: July 31, 2003
    Publication date: September 22, 2005
    Applicant: Genox Research, Inc.
    Inventors: Noriko Ohtani, Yuji Sugita, Mutsuo Yamaya, Hiroshi Kubo, Hiroichi Nagai, Kenji Izuhara
  • Publication number: 20030170329
    Abstract: Highly safe cytokine production inhibitors, agents for protecting and promoting liver function, anti-inflammatory agents and immunosuppressants. Brazilian licorice extract and periandrins, which are constituents thereof, have excellent characteristics of showing effects of inhibiting cytokine production and protecting and promoting liver function, an anti-inflammatory effect and an immunosuppressive effect without any harmful side effects. Thus use of Brazilian licorice extract or periandrins as cytoline production inhibitors makes it possible to inhibit inflammations in various diseases such as rheumatoid arthritis. These substances are also usable as agents for protecting and promoting liver function, anti-inflammatory agents and immunosuppressants. Moreover, foods, cosmetics, sweeteners and food materials containing Brazilian licorice extract exert the effects as described above.
    Type: Application
    Filed: December 13, 2002
    Publication date: September 11, 2003
    Inventors: Minoru Yoshida, Toshihiro Nakayama, Hiroichi Nagai, Munekazu Iinuma
  • Patent number: 5716950
    Abstract: A diazacycloalkanealkylsulfonamide derivative having the following formula ?I!: ##STR1## and pharmacologically acceptable salts thereof. The compounds have antiallergic activity with low antihistaminic activity and low toxicity and are useful as an medicament for preventing and treating diseases such as bronchial asthma, allergic rhinitis, atopic dermatitis, urticaria.
    Type: Grant
    Filed: November 20, 1995
    Date of Patent: February 10, 1998
    Assignee: Nippon Shoji Kabushiki Kaisha
    Inventors: Kenichi Kashima, Yoshinobu Akimoto, Yasuhiko Sakamoto, Hirohiko Sakamoto, Kayo Yokode, Toshimi Sakurai, Takeshi Takeno, Shigetaka Takemura, Hiroichi Nagai