Patents by Inventor Naoto Hokari

Naoto Hokari 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).

  • Acylamidomethylated polysulfone and process for production thereof
    Patent number: 5451438
    Abstract: An aromatic polysulfone polymer, and a molded article thereof, having an aromatic nucleus to which is introduced a group having the following general formula (I):A--CH(R.sup.1)--CO--N(R.sup.2)--CH.sub.2 -- (I)wherein, A is a halogen atom, hydroxyl group, amino compound residual group, acyloxyl group, alkoxyl group, phenoxyl group, or sulfide group, R.sup.1 and R.sup.2 are a hydrogen atom or lower alkyl group, and R.sup.1 and R.sup.2 may be the same or different to a main chain of aromatic polysulfone as a side chain.
    Type: Grant
    Filed: December 28, 1993
    Date of Patent: September 19, 1995
    Assignee: Biomaterial Research Institute Co., Ltd.
    Inventors: Kazuo Teramoto, Naoto Hokari