{"id":5777,"date":"2017-04-21T00:00:00","date_gmt":"2017-04-20T15:00:00","guid":{"rendered":"https:\/\/www.first.iir.isct.ac.jp\/detail_238\/"},"modified":"2017-04-21T00:00:00","modified_gmt":"2017-04-20T15:00:00","slug":"detail_238","status":"publish","type":"post","link":"https:\/\/www.first.iir.isct.ac.jp\/en\/detail_238\/","title":{"rendered":"Unveiling Ceremony for IEEE Milestone Plaque (April 21, 2017\uff09"},"content":{"rendered":"<p><span style=\"font-size: 12px;\">Invention of a Temperature-Insensitive Quartz Oscillation Plate, 1933.<\/span><br \/><span style=\"font-size: 12px;\">In April 1933, Issac Koga of the Tokyo Institute of Technology reported cutting angles that produced quartz crystal plates having a zero temperature coefficient of frequency. These angles, 54\u00b045&#8242; and 137\u00b059&#8242;, he named the R1 and R2 cuts. Temperature-insensitive wuartz crystal was used at first for radio transmitters and later for clocks, and has proven indispensable to all radio communication systems and much of information electronics.<\/span><\/p>\n<p><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"170421_1.JPG\" src=\"https:\/\/www.first.iir.isct.ac.jp\/news\/uploads\/170421_1.JPG\" width=\"300\" height=\"200\" class=\"mt-image-none\" style=\"font-size: 12px;\"><span style=\"font-size: 12px;\">\u3000<\/span><img loading=\"lazy\" decoding=\"async\" alt=\"170421_2.JPG\" src=\"https:\/\/www.first.iir.isct.ac.jp\/news\/uploads\/170421_2.JPG\" width=\"300\" height=\"200\" class=\"mt-image-none\" style=\"font-size: 12px;\"><\/p>\n<p><\/p>\n<p><span style=\"font-size: 12px;\">\u3000\u3000\u3000\u3000\u3000\u3000Left\uff1a<span>President, Yoshinao MISHIMA<\/span>\uff0cRight\uff1aExecutive Vice President, Makoto ANDO<\/span><\/p>\n<p><\/p>\n<p><span style=\"font-size: 12px;\"><img loading=\"lazy\" decoding=\"async\" alt=\"170421_3.JPG\" src=\"https:\/\/www.first.iir.isct.ac.jp\/news\/uploads\/170421_3.JPG\" width=\"300\" height=\"200\" class=\"mt-image-none\">\u3000<img loading=\"lazy\" decoding=\"async\" alt=\"170421_4.JPG\" src=\"https:\/\/www.first.iir.isct.ac.jp\/news\/uploads\/170421_4.JPG\" width=\"300\" height=\"200\" class=\"mt-image-none\"><\/span><br \/><span style=\"font-size: 12px;\">\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000Attendees\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000Monument<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Invention of a Temperature-Insensitive Quartz Oscillation Plate, 1933.In April 1933, Issac Koga of the Tokyo Institute of Technology reported cutting angles that produced quartz crystal plates having a zero temperature coefficient of frequency. These angles, 54\u00b045&#8242; and 137\u00b059&#8242;, he named the R1 and R2 cuts. Temperature-insensitive wuartz crystal was used at first for radio transmitters [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_locale":"en_US","_original_post":"https:\/\/www.first.iir.isct.ac.jp\/detail_238\/","footnotes":"","_links_to":"","_links_to_target":""},"categories":[15],"tags":[],"class_list":["post-5777","post","type-post","status-publish","format-standard","hentry","category-media","en-US"],"_links":{"self":[{"href":"https:\/\/www.first.iir.isct.ac.jp\/wp-json\/wp\/v2\/posts\/5777","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.first.iir.isct.ac.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.first.iir.isct.ac.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.first.iir.isct.ac.jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.first.iir.isct.ac.jp\/wp-json\/wp\/v2\/comments?post=5777"}],"version-history":[{"count":0,"href":"https:\/\/www.first.iir.isct.ac.jp\/wp-json\/wp\/v2\/posts\/5777\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.first.iir.isct.ac.jp\/wp-json\/wp\/v2\/media?parent=5777"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.first.iir.isct.ac.jp\/wp-json\/wp\/v2\/categories?post=5777"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.first.iir.isct.ac.jp\/wp-json\/wp\/v2\/tags?post=5777"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}