Patents by Inventor Tatsuo Hattori

Tatsuo Hattori 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).

  • Fluidic flowmeter for use with disturbed fluids
    Patent number: 5218872
    Abstract: A fluidic flowmeter is located downstream of a valve. A wire gauze or net having small meshes is located on the upstream side of a nozzle forming the inlet to the fluidic element to stabilize flow.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: June 15, 1993
    Assignees: Tokyo Gas Company Limited, Aichi Tokei Denki Co., Ltd., Kimmon Manufacturing Co., Ltd.
    Inventors: Tatsuo Hattori, Takashi Ueki, Katsuhito Sakai, Toshiki Ishikawa, Yukihiro Niimi, Hideyuki Ochi
  • Fluidic flowmeter
    Patent number: 5157974
    Abstract: The flowrate of fluid to be measured, that flows into the nozzle of a fluidic oscillator is stabilized by fitting flow adjusting plates on the upstream side of the nozzle.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: October 27, 1992
    Assignee: Tokyo Gas Company, Limited
    Inventors: Tatsuo Hattori, Takashi Ueki, Katsuhito Sakai, Toshiki Ishikawa, Yukihiro Niimi
  • Process for producing ammonium p-styrenesulfonate
    Patent number: 4115436
    Abstract: Ammonium p-styrenesulfonate is produced in a process which comprises reacting an amine having more than 7 carbon atoms and a mineral acid with an alkali metal p-styrenesulfonate in an aqueous media to produce an amine salt of p-styrenesulfonic acid and then reacting ammonia with said amine salt.
    Type: Grant
    Filed: July 8, 1977
    Date of Patent: September 19, 1978
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Kanzi Katsuragawa, Tatsuo Hattori, Keiichi Kihara, Hanzo Tamabayashi
  • Process for producing alkali metal styrenesulfonate
    Patent number: 4110366
    Abstract: An alkali metal styrenesulfonate is produced by extracting from an aqueous solution by contacting an aqueous solution containing an alkali metal halide and an alkali metal styrenesulfonate with an organic solvent containing a protonic acid salt of an amine of more than 7 carbon atoms as the extracting reagent, and then back-extracting the styrenesulfonic acid anions with an aqueous solution of an alkali metal hydroxide.
    Type: Grant
    Filed: December 1, 1976
    Date of Patent: August 29, 1978
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Hanzo Tamabayashi, Tatsuo Hattori, Tetsuo Tanaka, Yasuhiro Oda, Keiichi Kihara
  • Process for producing ammonium p-styrenesulfonate
    Patent number: 4061669
    Abstract: Ammonium p-styrenesulfonate is produced in a process which comprises reacting an amine having more than 7 carbon atoms and a mineral acid with an alkali metal p-styrenesulfonate in an aqueous media to produce an amine salt of p-styrenesulfonic acid and then reacting ammonia with said amine salt.
    Type: Grant
    Filed: August 28, 1975
    Date of Patent: December 6, 1977
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Kanzi Katsuragawa, Tatsuo Hattori, Keiichi Kihara, Hanzo Tamabayashi
  • Process for producing ammonium aromatic sulfonate
    Patent number: 4029640
    Abstract: A process for producing an ammonium p-styrenesulfonate or polymer thereof which comprisesReacting an alkali metal p-styrenesulfonate or a polymer thereof with an inorganic ammonium salt in a medium of a hydrophilic alcohol, or a mixture of a hydrophilic organic solvent and water.
    Type: Grant
    Filed: May 27, 1975
    Date of Patent: June 14, 1977
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Tatsuo Hattori, Kanzi Katsuragawa, Keiichi Kihara, Isao Ono, Hanzo Tamabayashi