Patents by Inventor Tokuo Fujisou

Tokuo Fujisou 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).

  • Process for hydrogen production from kerosene
    Patent number: 5130115
    Abstract: A process is disclosed for producing hydrogen of high purity from kerosene in petroleum oil. A feed of kerosene containing up to 1,000 wt.ppm of sulfur compounds is brought into contact with a nickel-containing sorbent at below 50 kg/cm.sup.2.G and at 150.degree.-350.degree. C. The resulting kerosene feed is further treated with a reforming catalyst under standard steam reforming conditions.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: July 14, 1992
    Assignees: Nippon Oil Co., Ltd., Petroleum Energy Center
    Inventors: Tokuo Fujisou, Shigeyuki Hayashi, Soichi Nomura, Akira Obuchi, Hideharu Kato
  • Hydrogen production from hydrocarbon
    Patent number: 5026536
    Abstract: A process is disclosed for producing hydrogen of high purity from hydrocarbons. A selected hydrocarbon feed is contacted with a nickel-containing sorbent of a specified composition at below 50 kg/cm.sup.2 G and at from 150.degree. to 500.degree. C. The hydrocarbon feed thus treated is further reformed with a catalyst of a specified composition.
    Type: Grant
    Filed: December 18, 1989
    Date of Patent: June 25, 1991
    Assignees: Nippon Oil Co., Ltd., Petroleum Energy Center
    Inventors: Tomonori Shioiri, Shinichi Satake, Yasuo Sekido, Tokuo Fujisou, Akira Obuchi, Hideharu Kato
  • Electrical insulating oils
    Patent number: 4033854
    Abstract: An electrical insulating oil having excellent oxidation stability, thermal stability and/or hydrogen absorbability consisting essentially of (A) a base hydrocarbon oil obtained by hydrofining and then dewaxing a fraction boiling at 280.degree.-400.degree. derived from a paraffin or mixed base crude oil, (B) a highly aromatic hydrocarbon oil obtained by hydrofining and/or distilling a heavy hydrocarbon fraction boiling at 250.degree.-400.degree. C produced as a by-product at the time of catalytically reforming naphtha or the like and, if desired, (C) an oil obtained by treating a lubricating oil fraction boiling at 230.degree.-500.degree. C derived from a crude petroleum oil.
    Type: Grant
    Filed: December 1, 1975
    Date of Patent: July 5, 1977
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Tadashi Ohmori, Tokuo Fujisou
  • Central system fluid composition
    Patent number: 4031020
    Abstract: A central system fluid composition composed of 5-30% by weight of a viscosity index improver, up to 10% by weight of another additive, and the balance being a hydrocarbon-type base oil, which is characterized in that the hydrocarbon-type base oil is composed of 50-100% by weight, based on its total weight, of at least one chief base oil component selected from the group consisting ofA. polybutenes with an average molecular weight of 100 - 500,B. homo- or copolymers with an average molecular weight of 100 to 500 of at least one .alpha.-olefin containing 2-12 carbons, excepting butenes, andC. hydrogenation products boiling at 250.degree.-380.degree. C of high aromatic components which are obtained by cracking petroleum oils,And 0-50% by weight, based on its total weight, of a mineral oil; and that the viscosity index improver is composed of at least one component selected from the group consisting of1.
    Type: Grant
    Filed: May 29, 1975
    Date of Patent: June 21, 1977
    Assignees: Nippon Oil Company, Ltd., Nissan Motor Co., Ltd.
    Inventors: Kensuke Sugiura, Mineo Kagaya, Tokuo Fujisou, Hiroyuki Aoki, Takeichiro Takehara, Shigenori Kurata