Patents by Inventor Kouzaburo Shinpo

Kouzaburo Shinpo 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).

  • Stabilized polymeric material composition
    Patent number: 5607988
    Abstract: A piperidine compound represented by the following general formula (I) and a stabilized polymeric material composition containing said compound.A[(O--X).sub.n NH--Y].sub.m (I)(wherein A represents a residue formed by eliminating m hydroxyl groups from a polyhydric (tri- to hexa-hydric) alcohol; X represents an alkylene group having 2 to 4 carbon atoms; n is an integer of from 1 to 15; m is an integer of from 3 to 6; and Y represents a group: ##STR1## wherein R.sub.1 represents a hydrogen atom, an alkyl, alkoxy or acyl group having 1 to 18 carbon atoms or an oxygen free radical; and R.sub.2 represents a hydrogen atom or an alkyl group having 1 to 18 carbon atoms.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 4, 1997
    Assignee: Asahi Denka Kogyo Kabushiki Kaisha
    Inventors: Kazuo Maekawa, Yutaka Nakahara, Kouzaburo Shinpo
  • Piperidine compounds
    Patent number: 5455347
    Abstract: A piperidine compound represented by the following general formula (I) and a stabilized polymeric material composition containing said compound.A[(O-X).sub.n NH-Y].sub.m (I)(wherein A represents a residue formed by eliminating m hydroxyl groups from a polyhydric (tri- to hexa-hydric) alcohol; X represents an alkylene group having 2 to 4 carbon atoms; n is an integer of from 1 to 15; m is an integer of from 3 to 6; and Y represents a group: ##STR1## wherein R.sub.1 represents a hydrogen atom, an alkyl, alkoxy or acyl group having 1 to 18 carbon atoms or an oxygen free radical; and R.sub.2 represents a hydrogen atom or an alkyl group having 1 to 18 carbon atoms.
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: October 3, 1995
    Assignee: Asahi Denka Kogyo Kabushiki Kaisha
    Inventors: Kazuo Maekawa, Yutaka Nakahara, Kouzaburo Shinpo