Patents by Inventor Ryuichiro Ohnishi

Ryuichiro Ohnishi 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).

  • Catalyst for the conversion of low carbon number aliphatic hydrocarbons to higher carbon number hydrocarbons, process for preparing the catalyst and process using the catalyst
    Patent number: 6426442
    Abstract: A catalyst for producing higher carbon number hydrocarbons, e.g., benzene from low carbon number hydrocarbons such as methane has been developed. The catalyst comprises a porous support such as ZSM-5 which has dispersed thereon rhenium and a promoter metal such as iron, cobalt, vanadium, manganese, molybdenum, tungsten and mixtures thereof. A process for preparing the catalyst and a process for converting low carbon number aliphatic hydrocarbons to higher number hydrocarbons in the presence of CO or CO2 at conversion conditions are also described.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: July 30, 2002
    Assignee: UOP LLC
    Inventors: Masaru Ichikawa, Ryuichiro Ohnishi, Linsheng Wang
  • Catalyst for the conversion of low carbon number aliphatic hydrocarbons to higher carbon number hydrocarbons, process for preparing the catalyst and process using the catalyst
    Publication number: 20020035305
    Abstract: A catalyst for producing higher carbon number hydrocarbons, e.g., benzene from low carbon number hydrocarbons such as methane has been developed. The catalyst comprises a porous support such as ZSM-5 which has dispersed thereon rhenium and a promoter metal such as iron, cobalt, vanadium, manganese, molybdenum, tungsten and mixtures thereof. A process for preparing the catalyst and a process for converting low carbon number aliphatic hydrocarbons to higher number hydrocarbons in the presence of CO or CO2 at conversion conditions are also described.
    Type: Application
    Filed: September 27, 2001
    Publication date: March 21, 2002
    Inventors: Masaru Ichikawa, Ryuichiro Ohnishi, Linsheng Wang
  • Catalyst for the conversion of low carbon number aliphatic hydrocarbons to higher carbon number hydrocarbons, process for preparing the catalyst and process using the catalyst
    Patent number: 6239057
    Abstract: A catalyst for producing higher carbon number hydrocarbons, e.g., benzene from low carbon number hydrocarbons such as methane has been developed. The catalyst comprises a porous support such as ZSM-5 which has dispersed thereon rhenium and a promoter metal such as iron, cobalt, vanadium, manganese, molybdenum, tungsten and mixtures thereof. A process for preparing the catalyst and a process for converting low carbon number aliphatic hydrocarbons to higher number hydrocarbons in the presence of CO or CO2 at on conditions are also described.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: May 29, 2001
    Assignee: UOP LLC
    Inventors: Masaru Ichikawa, Ryuichiro Ohnishi, Linsheng Wang
  • Process for preparing 1-chloro-1,2,2-trifluoroethylene or 1,2,2-trifluoroethylene
    Patent number: 5498806
    Abstract: 1-Chloro-l,2,2-trifluoroethylene or 1,2,2-trifluoroethylene is prepared by reacting 1,1,2-trichloro-1,2,2-trifluoroethane and hydrogen in the presence of a catalyst which comprises at least one metal selected from the group consisting of palladium, rhodium and ruthenium and at least one metal selected from the group consisting of mercury, lead, cadmium, tin, indium, copper, bismuth, thallium and silver and a carrier selected from the group consisting of Al.sub.2 O.sub.3, SiO.sub.2 and activated carbon, whereby selectivities and yields of 1-chloro-1,2,2-trifluoroethylene or 1,2,2-trifluoroethylene are optimized by selecting the kinds of metals and supports.
    Type: Grant
    Filed: January 5, 1995
    Date of Patent: March 12, 1996
    Assignee: Daikin Industries Ltd.
    Inventors: Masaru Ichikawa, Ryuichiro Ohnishi, Hisao Suzuki