Patents by Inventor Yasunori Masaki

Yasunori Masaki 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).

  • Method for treating waste water
    Patent number: 4356092
    Abstract: The invention relates to an improvement of the floc-formation property of activated sludge contained in waste water.A waste water treatment process comprises steps culturing a novel strain--Alcaligenes faecalis HRL--1--and adding the cultured cells to to-be-treated waste water.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: October 26, 1982
    Assignee: Hitachi, Ltd.
    Inventors: Norio Shimizu, Yoji Odawara, Yasunori Masaki
  • Microorganism for treating waste water
    Patent number: 4356268
    Abstract: The invention relates to an improvement of the floc-formation property of activated sludge contained in waste water.A waste water treatment process comprises steps culturing a novel strain-Alcaligenes faecalis HRL-1 - and adding the cultured cells to to-be-treated waste water.
    Type: Grant
    Filed: December 5, 1980
    Date of Patent: October 26, 1982
    Assignee: Hitachi, Ltd.
    Inventors: Norio Shimizu, Yoji Odawara, Yasunori Masaki
  • Continuous bulk polymerization of thermoplastic resins
    Patent number: 4321344
    Abstract: Continuous bulk polymerization of thermoplastic resins is carried out by using a horizontal continuous polymerizer comprising a cylindrical body, one or more shafts having the stirring elements and disposed in said body, a material inlet provided at an end of said body in its longitudinal direction, and a material drawing means and an outlet provided at the other end of said body. A monomer is evaporated from a polymerization solution while controlling the pressure in said polymerizer at a predetermined level and, concurrently with this, a monomer is directly sprayed to the free surface of the polymerization solution in the polymerizer from several locations of said polymerizer in its longitudinal direction, whereby to eliminate the heat of polymerization reaction and the heat of stirring to allow progress of the polymerization reaction under a predetermined temperature condition.
    Type: Grant
    Filed: October 30, 1980
    Date of Patent: March 23, 1982
    Assignee: Hitachi, Ltd.
    Inventors: Tomoaki Sumitani, Yasunori Masaki, Tokinobu Furukawa, Yukio Inoue, Chikao Oda