特許から見たレーザー分光分析研究の潮流
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概要
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Patent applications submitted between Jan. 1 of 1982 and Dec. 31 of 2005 and published before Oct. 4 of 2007 have been analyzed to investigate recent developments of analytical laser spectroscopy. Out of 9892 patent publications found through keyword searches, 658 patent applications have been concluded to be relevant. Major laser techniques are fluorescence, absorption, emission, Raman and photoacoustic. Fluorecences pectroscopy has the largest contribution. Absorption and emission spectroscopy follow. The peak in the number of applications occurs around 1996, but a recent increase is remarkable especially among foreign applicants. The difference between domestic applicants and foreign applicants lies largely in fluorescence spectrosopy, especially in its biological applications. If analytical laser spectroscopy is going to be useful for the diagonolysis of disease, this report suggests a need for extended research in this field in Japan.
- 2008-03-05