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John Yamamoto Rajiv Banavali
Rajiv Manohar Banavali, Randall Wayne Stephens, John Hiroshi Yamamoto: H, B, Preparation of M. Rohn and Haas Company, Kenneth Crimaldi, July 21, 2009: US07563934

A method for producing MnB12H12, wherein M is a metal or ammonium cation and n is one or two, by combining a metal borohydride and XBH3; wherein X is a substituted amine; a substituted phosphine; or tetrahydrofuran.


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John Yamamoto Rajiv Banavali
Rajiv Manohar Banavali, Randall Wayne Stephens, John Hiroshi Yamamoto: Preparation of MnB12H12. Rohm And Haas Company, May 7, 2009: US20090118526-A1

A method for producing MnB12H12, wherein M is a metal or ammonium cation and n is one or two, by combining a metal borohydride and XBH3; wherein X is a substituted amine; a substituted phosphine; or tetrahydrofuran.


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John Yamamoto
John Hiroshi Yamamoto, Won Suh Park, Aaron Sarafinas, Michael Miller Cook, Stephen Gerard Maroldo: Method of making lithium borohydride. Rohm and Haas Company, Carl P Hemenway, April 18, 2006: US07029641

The present invention relates to a method of making lithium borohydride that gives high yields while maintaining ease of purification.


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John Yamamoto
Anthony Rocco Cartolano, Sergei Vladimirovich Ivanov, Cheryl Irene Teich, John Hiroshi Yamamoto: Synthesis of amine boranes. Rohm and Haas Company, Air Products and Chemicals, Kenneth Crimaldi, October 18, 2011: US08039666

A method for preparing an amine borane from an alkali metal borohydride and an amine salt. The alkali metal borohydride is allowed to react with 0.95 to 1.05 equivalents of the amine salt in a solvent which contains water and an amine.


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John Yamamoto
Curtis Schwartz, John Hiroshi Yamamoto: Stable high-temperature borohydride formulation. Rohm and Haas Company, Kenneth Crimaldi, January 19, 2010: US07648644

A stabilized aqueous mixture containing at least one borohydride compound and at least one metal hydroxide compound. The mixture has improved stability with regard to decomposition of borohydride, especially at elevated temperatures.


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John Yamamoto
Won Suh Park, John Hiroshi Yamamoto: Method for preparation of lithium aluminum hydride from sodium aluminum hydride. Rohm and Haas Company, Kenneth Crimaldi, January 13, 2004: US06676921

A method for preparing a lithium aluminum hydride solution comprising lithium aluminum hydride, toluene and tetrahydrofuran by the steps of: (a) combining lithium chloride, tetrahydrofuran, and a slurry of sodium aluminum hydride in toluene; and (b) allowing the mixture formed in step (a) to react t ...


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John Yamamoto
Curtis Schwartz, John Hiroshi Yamamoto: Stable high-temperature borohydride formulation. Rohm And Haas Company, January 10, 2008: US20080009575-A1

A stabilized aqueous mixture containing at least one borohydride compound and at least one metal hydroxide compound. The mixture has improved stability with regard to decomposition of borohydride, especially at elevated temperatures.


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John Yamamoto
Anthony Rocco Cartolano, Sergei Vladimirovich Ivanov, Cheryl Irene Teich, John Hiroshi Yamamoto: Synthesis of amine boranes. ROHM AND HAAS COMPANY PATENT DEPARTMENT, May 27, 2010: US20100130780-A1

A method for preparing an amine borane from an alkali metal borohydride and an amine salt. The alkali metal borohydride is allowed to react with 0.95 to 1.05 equivalents of the amine salt in a solvent which contains water and an amine.



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