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The following events occurred in May 1959: ==May 1, 1959 (Friday)== *A patent application (No. 3,064,167) for the planar process was filed by Jean Hoerni under the name "method of protecting exposed p-n junctions at the surface of silicon transistors by oxide masking technique". The process, which protected the transistor from contamination, made mass production of the transistors feasible, and has been called "after the invention of the junction transistor, the most important invention of microelectronics".〔Bo Lojek, ''History of Semiconductor Engineering'' (Springer, 2007), pp122–125〕 *Ghana's President Kwame Nkrumah and Guinea's President Sekou Toure announced the merger of their two nations into the Union of African States, which later grew to include Mali in 1961. The Union was dissolved in 1963 after the creation of the Organization of African Unity.〔Yuri Smertin, ''Kwame Nkrumah'' (International Publishers Co, 1987), pp86–88〕 *W. E. B. Du Bois was awarded the Lenin Peace Prize during his visit to Moscow.〔''Africana: Civil Rights: An A-to-Z Reference of the Movement that Changed America'' (Running Press, 2005), p150〕 *The NASA spaceflight center in Greenbelt, Maryland, was named for Robert H. Goddard.〔Howard B. Rockman, ''Intellectual Property Law for Engineers and Scientists'' (Wiley-IEEE, 2004), p303〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「May 1959」の詳細全文を読む スポンサード リンク
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