Back to results
US 6,475,803 B1Granted
Cyclodextrin derivatives and measurement of water contamination degree using the same
AssigneesAkihiko Ueno Japan, Nihon Hels Industry Corporation
InventorsAkihiko Ueno, Juan Wang
Life of this patent
Estimating the term…
Abstract
A cyclodextrin derivative is an X-hydroxynaphthalene-Y-amidated cyclodextrin formed by subjecting a starting cyclodextrin to an addition reaction with A-hydroxyl-B-carboxyl naphthalane and used for measuring the contamination degree of water.
Claims2
A cyclodextrin derivative being an X-hydroxynaphthalene-Y-amidated cyclodextrin formed by subjecting a starting cyclodextrin to an addition reaction with A-hydroxyl B-carboxyl naphthalene, wherein each of the variables X, Y, A, and B are absolute numbers corresponding to a position of a substituent.
Dependencies are inferred from the claim text.