Patents by Inventor Toyozi Shimizu

Toyozi Shimizu 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).

  • Patent number: 5294366
    Abstract: In accordance with the present invention, there are provided carboxylate compounds and liquid compositions thereof represented by the following formula (A) ##STR1## wherein R.sup.1 represents one group selected from the group consisting of alkyl group having 6 to 18 carbon atoms, alkoxy group having 6 to 18 carbon atoms and halogenated alkyl group of 6 to 18 carbon atoms, C* represents an asymmetric carbon atom, and R.sup.2 represents a group represented by the following formula (A)--(CH.sub.2).sub.m --CH.sub.3 or (B)--(CH.sub.2).sub.n --COOR.sub.3 wherein m represents an integer of 2 to 6, n represents an integer of 0 to 5, and R.sup.3 represents alkyl group having 1 to 10 carbon atoms.
    Type: Grant
    Filed: September 4, 1991
    Date of Patent: March 15, 1994
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Toyozi Shimizu, Hideo Yamaoka, Shinichi Nishiyama, Shoichi Miyakoshi, Tooru Yamanaka, Nobuyuki Doi
  • Patent number: 4370502
    Abstract: A process for producing p-nitroaniline, which comprises nitrating an .alpha.-methylbenzalaniline of the formula ##STR1## wherein R represents an alkyl group having 1 to 5 carbon atoms, and n is 0 or 1,with nitric acid in the presence of a halogenated aliphatic hydrocarbon solvent and sulfuric acid to form a p-nitro-.alpha.-methylbenzalaniline of the formula ##STR2## wherein R and n are as defined above, and hydrolyzing the p-nitro-.alpha.-methylbenzalaniline.
    Type: Grant
    Filed: March 13, 1981
    Date of Patent: January 25, 1983
    Assignee: Mitsui Petrochemical Industries Ltd.
    Inventors: Taira Harada, Toyozi Shimizu, Takenori Nagaoka