Patents by Inventor Tatsumi Matsushita

Tatsumi Matsushita 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).

  • Patent number: 9567228
    Abstract: Provided are a catalyst for producing a higher silane with high yield at low cost by performing a reaction at relatively low temperature while inhibiting decomposition into solid silicon; and a process using the catalyst for producing a higher silane. The catalyst for producing a higher silane includes a porous oxide and is used to convert a lower silane to a higher silane wherein the porous oxide has at least regularly arranged pores and is primarily composed of silicon oxide, wherein a content of alkali metals and alkali earth metals in the porous oxide is not less than 0.00 wt % and not more than 2.00 wt %.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: February 14, 2017
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Tatsumi Matsushita, Yoshinori Nouji, Akira Matsuura
  • Publication number: 20160257571
    Abstract: Provided are a catalyst for producing a higher silane with high yield at low cost by performing a reaction at relatively low temperature while inhibiting decomposition into solid silicon; and a process using the catalyst for producing a higher silane. The catalyst for producing a higher silane includes a porous oxide and is used to convert a lower silane to a higher silane wherein the porous oxide has at least regularly arranged pores and is primarily composed of silicon oxide, wherein a content of alkali metals and alkali earth metals in the porous oxide is not less than 0.00 wt % and not more than 2.00 wt %.
    Type: Application
    Filed: October 16, 2014
    Publication date: September 8, 2016
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Tatsumi MATSUSHITA, Yoshinori NOUJI, Akira MATSUURA
  • Publication number: 20130237618
    Abstract: An object of the invention is to provide a methanol production process which can efficiently produce methanol from carbon dioxide and hydrogen while suppressing loads to the global environment. The process for producing methanol of the invention includes a step (a) of reacting hydrogen and carbon dioxide with each other in a reactor in the presence of a copper-containing catalyst to produce a reaction mixture containing methanol; a step (b) of circulating part or all of the reaction mixture to the step (a); a step (c1) of combusting part of the reaction mixture to produce a combustion product and energy, and a step (c2) of circulating part or all of the combustion product to the step (a), the step (c1) and the step (c2) being performed when the reaction mixture contains a compound (p) containing carbon and hydrogen except methanol at not less than 0.
    Type: Application
    Filed: November 18, 2011
    Publication date: September 12, 2013
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Tatsumi Matsushita, Tsukasa Haganuma, Daisuke Fujita
  • Patent number: 6743959
    Abstract: An economical and industrial method for the dehydrogenation of triisopropyl benzene can be provided by carrying out the reaction employing a solid catalyst having an iron compound and potassium compound as major components or an iron compound, potassium compound, and magnesium compound as major components, as a dehydrogenating catalyst for producing diisopropyl isopropenyl benzene, isopropyl diisopropenyl benzene and/or triisopropenyl benzene from triisopropyl benzene. In the dehydrogenation of triisopropyl benzene or diisopropyl benzene, by carrying out an off-and-on reaction in which the above described solid catalyst is employed and with which a regeneration period with steam or oxygen or air is provided, an economical and industrial dehydrogenation method having an extended life of the catalyst can be provided and will have an industrial superiority.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: June 1, 2004
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hiroyoshi Watanabe, Tatsumi Matsushita, Shinobu Aoki, Naoshi Nagai, Hisaharu Kuboyama