Currently I am a physician/Occupation Doctor in Kyoto, Japan. I originally majored Industrial chemistry during undergaraduate and Molecular Engineering during master graduate at Kyoto University. The thesis field was graphite intercalation compounds with metal fluoride. Now I am inersted in medical toxicology and theoretical chemistry. I was very much inerested in neurological and electrochemical effect of too much taking of metal compounds, for example, ZnO,TiO,AgNO3, AgCl, AgF, PbO and etc.. I am also interested in chemical reactions on metal surface referencing surface electron spin structure. As a physician I am very much interested in preventing neurological disease caused by excessive metal compounds. As a chemist, I am trying to develop theoretical toy model based on discrete topology for understanding organic compounds reactions and metal surface reactions. And also I am trying to maketheoretical model of how emotion is generated. I think that emotion can be very much related to acid/base blood balance and membrane potential of glia cells and neuron cells and connettivity of synaps.