Patents by Inventor Hidenobu Kajitani

Hidenobu Kajitani 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 producing conjugated diene
    Patent number: 9340472
    Abstract: Disclosed is a method for producing a conjugated diene by subjecting a monoolefin having a carbon atom number of 4 or more and an oxygen gas to an oxidative dehydrogenation reaction by using a molybdenum-containing metal oxide catalyst under heat removal with a coolant, wherein an amount of molybdenum adhered onto a cooling heat transfer surface within a reactor is kept at not more than 20 mg/m2, or not only a surface roughness Ra of a cooling heat transfer surface within a reactor is not more than 3 ?m, but a temperature difference between a reaction temperature and a coolant temperature is in the range of from 5 to 220° C.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: May 17, 2016
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Hiroshi Kameo, Hidenobu Kajitani, Kazuyuki Iwakai, Hiroshi Takeo, Souichi Orita, Takeshi Takeuchi
  • METHOD FOR PRODUCING CONJUGATED DIENE
    Publication number: 20140012057
    Abstract: Disclosed is a method for producing a conjugated diene by subjecting a monoolefin having a carbon atom number of 4 or more and an oxygen gas to an oxidative dehydrogenation reaction by using a molybdenum-containing metal oxide catalyst under heat removal with a coolant, wherein an amount of molybdenum adhered onto a cooling heat transfer surface within a reactor is kept at not more than 20 mg/m2, or not only a surface roughness Ra of a cooling heat transfer surface within a reactor is not more than 3 ?m, but a temperature difference between a reaction temperature and a coolant temperature is in the range of from 5 to 220° C.
    Type: Application
    Filed: September 9, 2013
    Publication date: January 9, 2014
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Hiroshi KAMEO, Hidenobu Kajitani, Kazuyuki Iwakai, Hiroshi Takeo, Souichi Orita, Takeshi Takeuchi