Patents by Inventor Takako Ichikawa

Takako Ichikawa 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).

  • Agent for treating or preventing cancer, and combination of RF pathway inhibitor and MEK inhibitor for treating or preventing cancer
    Patent number: 11925646
    Abstract: The present invention provides a method for treatment or prevention of cancer through novel action mechanism, namely, through inhibition of a riboflavin pathway. The method for treatment or prevention of cancer comprises administering an RF pathway inhibitor to a subject in need thereof.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: March 12, 2024
    Assignees: NATIONAL UNIVERSITY CORP. HOKKAIDO UNIVERSITY, Tsuzuki Educational Institute
    Inventors: Takako Ooshio, Masahiro Sonoshita, Satoshi Ichikawa, Yusuke Satoh, Kiyonaga Fujii
  • Clathrate compounds comprising tetrakisphenols as host
    Patent number: 5364977
    Abstract: The present invention provides novel clathrate compounds using tetrakisphenols as host. The clathrate compounds are obtained easily and efficiently by reacting tetrakisphenols represented by the general formula [I] as host and various organic compounds such as alcohol, ether, ester, ketone, heterocyclic compounds containing nitrogen, essential oil, perfume and the like as guest under the condition of solvent-free or diluted with solvent if required. ##STR1## wherein X represents (CH.sub.2)n, n represents 0-3, and R.sup.1 and R.sup.2 represents each independently hydrogen atom, a lower alkyl group, a pheny group optionally having substituents, a halogen atom or a lower alcoxy group.The clathrate compounds specified in the present invention are useful in the technological field of selective separation, chemical stabilization, conversion to non-volatility, powder processing and the like.
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: November 15, 1994
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Makoto Asai, Hiroshi Suzuki, Takako Ichikawa