Optics: measuring and testing – By polarized light examination – With polariscopes
Reexamination Certificate
2008-02-20
2010-11-23
Evans, F. L (Department: 2877)
Optics: measuring and testing
By polarized light examination
With polariscopes
Reexamination Certificate
active
07839505
ABSTRACT:
An optical rotating power measurement method comprising: an optical rotating power data acquisition step of starting measurement of the optical rotating power of the sample in a measurement apparatus during a temperature changing process where a controller controls the temperature of the sample such that the temperature reaches the predetermined temperature and of obtaining temperature data and optical rotating power data of the sample as time passes during the temperature changing process; and a data processing step of obtaining a straight line relationship data between the temperature data and the optical rotating power data, by using the fact that the optical rotating power of the sample is proportional to a measurement temperature; wherein the optical rotating power data of the sample at the predetermined temperature or the temperature dependence data of the optical rotating power of the sample is determined based on the straight line relationship data.
REFERENCES:
patent: 6-3259 (1994-01-01), None
Japanese Patent Abstract Publication No. 2000-046732 published Feb. 18, 2000, one page.
“Test methods for optical rotation of chemical products,” Japanese Industrial Standard, K 0063-1992, pp. 1-10.
Japanese Patent Abstract Publication No. 06-003259 published Jan. 11, 1994, eight pages.
Hvidt et al., “Temperature-Dependent Optical Rotatory Dispersion Properties of Helical Muscle Proteins and Homopolymers,”Biopolymers, vol. 24, pp. 1647-1662, Sep. 1985.
Herreros-Cedres et al., “Temperature-dependent gyration tensor of LilO3 single crystal using the high-accuracy universal polarimeter,” Journal of Applied Crystallography, vol. 35, Apr. 2002, pp. 228-232.
Japanese Patent Abstract; Publication No. 2000046732; Publication Date Feb. 18, 2000.
K. Wiberg et al.; “Temperature Dependence of Optical Rotation: α-Pinene, Pinane, Camphene, Camphor, and Fenchone”; J. Phys. Chem. A 2004; vol. 108; pp. 5559-5563.
Extended European Search Report for European Application No. 08151738.5; 6 pages; Dated Jul. 9, 2008.
Fujisawa Yuji
Fukazawa Tomoyuki
Masago Hisashi
Senuma Mutsumi
Yamada Atsushi
Evans F. L
JASCO Corporation
Rankin , Hill & Clark LLP
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