Patents by Inventor Takafumi Tohyama

Takafumi Tohyama 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).

  • Blood pressure controlling apparatus, non-transitory computer readable recording medium storing control program of blood pressure controlling apparatus, and method for controlling blood pressure
    Patent number: 11969597
    Abstract: A blood pressure controlling apparatus includes an acquiring part configured to acquire biological information indicating blood pressure of a subject, a producing part configured to produce a frequency modulated pulse train on the basis of the biological information, and a supplying part configured to supply an electrical current on the basis of the frequency modulated pulse train, to an electrode attached on the subject. The electrical current stimulates baroreceptor afferent nerves of the subject.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: April 30, 2024
    Assignee: Kyushu University, National University Corporation
    Inventors: Keita Saku, Kenji Sunagawa, Takeshi Tohyama, Kazuya Hosokawa, Takafumi Sakamoto
  • Diphenylsulfone derivatives and heat sensitive recording materials
    Patent number: 5380887
    Abstract: A diphenylsulfone derivative of the formula (I) ##STR1## which is highly safe and used for imparting storage stability to a colored image of thermal or heat sensitive recording material, wherein R.sup.1 represents lower alkenyl or aralkyl optionally substituted with halogen or lower alkyl, and R.sup.2 represents hydrogen or methyl, provided that R.sup.2 represents methyl when R.sup.1 represents unsubstituted benzyl.
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: January 10, 1995
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Takafumi Tohyama, Takehiro Sato, Kousaku Morita, Masaaki Uchikawa, Nobuyuki Hirai
  • Diphenylsulfone derivatives and heat sensitive recording materials
    Patent number: 5340788
    Abstract: Storing stabilizers for color image of heat sensitive recording materials, which are higher safe diphenylsulfone derivatives represented by general formula (I), and the heat sensitive recording materials using them. ##STR1## (Wherein, R.sup.1 is aralkyl or lower alkenyl which may be substituted with halogen or lower alkyl and R.sup.2 is hydrogen or methyl, but when R.sup.1 is unsubstituted benzyl, R.sub.2 is methyl).
    Type: Grant
    Filed: March 19, 1992
    Date of Patent: August 23, 1994
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Takafumi Tohyama, Takehiro Sato, Kousaku Morita, Masaaki Uchikawa, Nobuyuki Hirai