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- Issac_Koga abstract "Issac (Issaku) Koga was born on December 5, 1899 in Tashiro Village (now Tosu) in Saga Prefecture, Japan, the eldest of 7 children. In July 1920, at the age of 20 he started to study at the Department of Electrical Engineering of Tokyo Imperial University (later renamed University of Tokyo). After graduation in August 1925, he moved to the new Tokyo City Electrical Institute, which was established to develop and promote radio broadcasting technology under the directorship of Kujirai Kotaro, a pioneer of research and teaching of radio science. Initially an engineer, he became an assistant professor in 1929. Under the guidance of Prof. Kotaro he studied crystal oscillators, forming the basis of his PhD thesis, completed in April 1930, entitled "Characteristics of the crystal oscillator". This work included making the first quartz tuning forks in 1927. In 1944 he became a professor of the University of Tokyo, later a professor emeritus with the same University.As well as observing how the piezoelectric oscillations of the quartz crystal depended on its shape and cut, he theoretically analyzed their behavior. He developed many applications of crystal oscillators, in particular a crystal (the “Koga cut”) oscillator which was stable to temperature variations with applications in wireless communications and time keeping, forming basis of the Japanese Quartz clock and watch industry. He was awarded the Japan Academy Prize in 1948 (the citation reads for "Theoretical and Experimental Investigation upon the Fundamental Characteristics of Piezoelectric Oscillating Crystal and Quartz Crystal Oscillator Circuit and Their Applications to Wireless Communication and Crystal Clock"), the Order of Cultural Merit award in 1963 and became a member of the Japanese Academy in 1971. He served as president of the International Union of Radio Science (URSI) between 1963 and 1968.Koga died on September 2, 1982. In his honor, the International Union of Radio Science, URSI, named a young scientist award after him (the Issac Koga Gold Medal ) first awarded in 1984 and subsequently awarded every 3 years.".
- Issac_Koga wikiPageID "45042916".
- Issac_Koga wikiPageLength "3633".
- Issac_Koga wikiPageOutDegree "12".
- Issac_Koga wikiPageRevisionID "649970612".
- Issac_Koga wikiPageWikiLink Category:1899_births.
- Issac_Koga wikiPageWikiLink Category:1982_deaths.
- Issac_Koga wikiPageWikiLink Category:Japanese_electronics_engineers.
- Issac_Koga wikiPageWikiLink Crystal_oscillator.
- Issac_Koga wikiPageWikiLink PhD_thesis.
- Issac_Koga wikiPageWikiLink Piezoelectric.
- Issac_Koga wikiPageWikiLink Piezoelectricity.
- Issac_Koga wikiPageWikiLink Professor_emeritus.
- Issac_Koga wikiPageWikiLink Professors_in_the_United_States.
- Issac_Koga wikiPageWikiLink Quartz.
- Issac_Koga wikiPageWikiLink Quartz_clock.
- Issac_Koga wikiPageWikiLink Quartz_crystal.
- Issac_Koga wikiPageWikiLink Thesis.
- Issac_Koga wikiPageWikiLink Tosu.
- Issac_Koga wikiPageWikiLink University_of_Tokyo.
- Issac_Koga wikiPageWikiLinkText "Issac Koga".
- Issac_Koga hasPhotoCollection Issac_Koga.
- Issac_Koga wikiPageUsesTemplate Template:Reflist.
- Issac_Koga subject Category:1899_births.
- Issac_Koga subject Category:1982_deaths.
- Issac_Koga subject Category:Japanese_electronics_engineers.
- Issac_Koga comment "Issac (Issaku) Koga was born on December 5, 1899 in Tashiro Village (now Tosu) in Saga Prefecture, Japan, the eldest of 7 children. In July 1920, at the age of 20 he started to study at the Department of Electrical Engineering of Tokyo Imperial University (later renamed University of Tokyo).".
- Issac_Koga label "Issac Koga".
- Issac_Koga sameAs m.012nfbkg.
- Issac_Koga sameAs Q19665508.
- Issac_Koga sameAs Q19665508.
- Issac_Koga wasDerivedFrom Issac_Koga?oldid=649970612.
- Issac_Koga isPrimaryTopicOf Issac_Koga.