Patents by Inventor Hikari Mitsui

Hikari Mitsui 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 trialkyl gallium
    Patent number: 8278470
    Abstract: The present invention provides a method for producing a trialkyl gallium comprising the steps of reacting gallium, magnesium, and an alkyl halide in an ether, and diluting during the reaction the reaction system with an ether; a method for producing a trialkyl gallium comprising the steps of heating in a vacuum a mixture of magnesium and molten gallium, and reacting the mixture with an alkyl halide in a solvent; and a method for producing a trialkyl gallium comprising the step of reacting an alkyl metal with an alkylgallium halide compound represented by the formula Ga2RmX6?m wherein R is a methyl or ethyl group, X is a halogen atom, and m is an integer from 1 to 5.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: October 2, 2012
    Assignee: Nichia Corporation
    Inventors: Hisayoshi Yanagihara, Atau Ioku, Takatoshi Mori, Hikari Mitsui
  • Method for producing trialkyl gallium
    Patent number: 7667063
    Abstract: The present invention provides method 1 for producing a trialkyl gallium comprising the steps of reacting gallium, magnesium, and an alkyl halide in an ether, and diluting during the reaction the reaction system with an ether; method 2 for producing a trialkyl gallium comprising the steps of heating in a vacuum a mixture of magnesium and molten gallium, and reacting the mixture with an alkyl halide in a solvent; and method 3 for producing a trialkyl gallium comprising the step of reacting an alkyl metal with an alkylgallium halide compound represented by the formula Ga2RmX6-m wherein R is a methyl or ethyl group, X is a halogen atom, and m is an integer from 1 to 5.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: February 23, 2010
    Assignee: Nichia Corporation
    Inventors: Hisayoshi Yanagihara, Atau Ioku, Takatoshi Mori, Hikari Mitsui
  • METHOD FOR PRODUCING TRIALKYL GALLIUM
    Publication number: 20100013055
    Abstract: The present invention provides a method for producing a trialkyl gallium comprising the steps of reacting gallium, magnesium, and an alkyl halide in an ether, and diluting during the reaction the reaction system with an ether; a method for producing a trialkyl gallium comprising the steps of heating in a vacuum a mixture of magnesium and molten gallium, and reacting the mixture with an alkyl halide in a solvent; and a method for producing a trialkyl gallium comprising the step of reacting an alkyl metal with an alkylgallium halide compound represented by the formula Ga2RmX6?m wherein R is a methyl or ethyl group, X is a halogen atom, and m is an integer from 1 to 5.
    Type: Application
    Filed: October 1, 2009
    Publication date: January 21, 2010
    Inventors: Hisayoshi YANAGIHARA, Atau Ioku, Takatoshi Mori, Hikari Mitsui
  • Method for producing trialkyl gallium
    Publication number: 20060214161
    Abstract: The present invention provides method 1 for producing a trialkyl gallium comprising the steps of reacting gallium, magnesium, and an alkyl halide in an ether, and diluting during the reaction the reaction system with an ether; method 2 for producing a trialkyl gallium comprising the steps of heating in a vacuum a mixture of magnesium and molten gallium, and reacting the mixture with an alkyl halide in a solvent; and method 3 for producing a trialkyl gallium comprising the step of reacting an alkyl metal with an alkylgallium halide compound represented by the formula Ga2RmX6-m wherein R is a methyl or ethyl group, X is a halogen atom, and m is an integer from 1 to 5.
    Type: Application
    Filed: March 22, 2006
    Publication date: September 28, 2006
    Inventors: Hisayoshi Yanagihara, Atau Ioku, Takatoshi Mori, Hikari Mitsui