Patents by Inventor Yoshiko Moriguchi

Yoshiko Moriguchi 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 OF PRODUCING GYPSUM
    Publication number: 20010002247
    Abstract: After hydrogenation and desulfurization treatment of raw fuel in the desulfurization unit 1, the product is separated in the acidic gas separator 2 into fuel and a hydrogen sulfide-containing gas, and the hydrogen sulfide-containing gas is subjected to combustion together with air in the catalyst converter 3 thereby converting the hydrogen sulfide completely into sulfur dioxide to give a sulfur dioxide-containing gas, and this sulfur dioxide-containing gas is reacted with limestone powder and air in water in the oxidation and neutralization reactor 4, and the resulting slurry is dehydrated in the gypsum slurry solid/liquid separator 5 and then dried in the gypsum heater 6.
    Type: Application
    Filed: August 21, 1998
    Publication date: May 31, 2001
    Applicant: Taiichiro Suda
    Inventors: TAIICHIRO SUDA, NAGATOSHI FUJII, MASAMI KAWASAKI, YOSHIKO MORIGUCHI, MASAKI IIJIMA, TOSHIKUNI SERA
  • Method of producing gypsum
    Patent number: 5798087
    Abstract: After hydrogenation and desulfurization treatment of raw fuel in the desulfurization unit 1, the product is separated in the acidic gas separator 2 into fuel and a hydrogen sulfide-containing gas, and the hydrogen sulfide-containing gas is subjected to combustion together with air in the catalyst converter 3 thereby converting the hydrogen sulfide completely into sulfur dioxide to give a sulfur dioxide-containing gas, and this sulfur dioxide-containing gas is reacted with limestone powder and air in water in the oxidation and neutralization reactor 4, and the resulting slurry is dehydrated in the gypsum slurry solid/liquid separator 5 and then dried in the gypsum heater 6.
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: August 25, 1998
    Assignees: Kansai Electric Power Co., Inc., Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Taiichiro Suda, Nagatoshi Fujii, Masami Kawasaki, Yoshiko Moriguchi, Masaki Iijima, Toshikuni Sera