翻訳と辞書 Words near each other ・ Alexander Lyman Holley ・ Alexander Lyman Holley (sculpture) ・ Alexander Lyon, 2nd Lord Glamis ・ Alexander Lévy ・ Alexander López ・ Alexander Löhr ・ Alexander Lüderitz ・ Alexander M. Alling ・ Alexander M. Beatty ・ Alexander M. Cruikshank ・ Alexander M. Cutler ・ Alexander M. Drake ・ Alexander M. Hardy ・ Alexander M. Patch American High School ・ Alexander M. Phillips ・ Alexander M. Poniatoff ・ Alexander M. Quinn ・ Alexander M. S. Green ・ Alexander M. Schenker ・ Alexander M. Schweitzer ・ Alexander M. Thompson ・ Alexander M. York ・ Alexander M. Zaleski ・ Alexander MacAlister ・ Alexander Macalister ・ Alexander MacAra ・ Alexander Macbain ・ Alexander Macbean ・ Alexander MacCallum Scott ・ Alexander MacConachie Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Alexander M. Poniatoff ： ウィキペディア英語版 Alexander M. Poniatoff Alexander Matveevich Poniatoff ((ロシア語:Александр Матвеевич Понятов), 25 March 1892 – 24 October 1980) was a Russian-American electrical engineer. Poniatoff was born in 1892 in Aisha, Zelenodolsky District, Tatarstan, Russian Empire. He emigrated from Russia to China, where he worked for the Shanghai Power Company, until he emigrated to the United States in 1927. In 1944 he founded Ampex, using his initials A.M.P. plus "ex" for "excellence" to create the name. The high-frequency bias technique, which made quality recording possible, was invented by Telefunken engineers and put into practical use by Poniatoff. Danish engineer Valdemar Poulsen's original magnetic recorder was previously only usable for telephony recording. In 1956, Ampex engineers created the world's first rotary head recorder, the VR-1000 videotape recorder. Poniatoff served as president of Ampex until 1955, when he was elected chairman of the board. He died in 1980. ==External links== * *(About Poniatoff at the 20th Century American Leaders Database ) 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「Alexander M. Poniatoff」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.