Patents by Inventor Akio Nishihara

Akio Nishihara 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).

  • Sulfur containing molybdenum dihydrocarbyldithiocarbamate compound
    Patent number: 4098705
    Abstract: A compound having the following general formula (I); ##STR1## wherein R.sub.1 and R.sub.2 stand for a hydrocarbyl group having from 1 to 24 carbon atoms, x is a number of 0.5 - 2.3, useful as an additive for lubricants.
    Type: Grant
    Filed: July 29, 1976
    Date of Patent: July 4, 1978
    Assignee: Asahi Denka Kogyo K.K.
    Inventors: Toshio Sakurai, Akio Nishihara, Takuro Handa, Hidekatsu Katoh, Yoshiro Tomoda, Kazumi Aoki, Makoto Yoto
  • Chlorination of aromatic compounds
    Patent number: 3931340
    Abstract: Nuclear chlorination of aromatic compounds having an electron donating group is effected by contacting said aromatic compound with copper (II) chloride in an aqeuous hydrochloric acid solution and adding chlorine to the reaction system to maintain the mole ratio of (a) copper (I) chloride to (b) the sum of copper (I) chloride plus copper (II) chloride at more than 0.005/l but less than about 0.3/l.
    Type: Grant
    Filed: May 23, 1974
    Date of Patent: January 6, 1976
    Assignee: Asahi Denka Kogyo K.K.
    Inventors: Akio Nishihara, Hidekastu Kato, Yaoki Jimbo, Yoshiro Tomoda, Jinichi Omi