Paul F Korkowski

US Patent:

52963810, Mar 22, 1994

Filed:

Aug 8, 1991

Appl. No.:

7/742002

Inventors:

Masao Yafuso - El Toro CA
Paul F. Korkowski - Hastings MN
Roger A. Mader - Stillwater MN
Cheng Yan - Irvine CA
John T. Carlock - Powell OH

Assignee:

Minnesota Mining & Manufacturing Co. - St. Paul MN

International Classification:

G01N 2164

US Classification:

436172

Abstract:

A sensing element for sensing the concentration of an analyte in a medium is disclosed. The sensing element comprises a matrix material having at least one indicator component covalently bonded thereto. The indicator component is capable of providing a signal dependent on the concentration of a analyte in a medium. The indicator component is derived from at least one indicator compound having an aromatic ring to which is directly bonded a group including a functional portion which is conjugated relative to this aromatic ring.

US Patent:

52567842, Oct 26, 1993

Filed:

Jan 16, 1992

Appl. No.:

7/822168

Inventors:

Cecil V. Francis - Woodbury MN
Elisa M. Cross - St. Paul MN
Roberta E. Harelstad - Bloomington MN
Paul F. Korkowski - Hastings MN
Peter C. Leung - Woodbury MN
David W. Macomber - St. Paul MN
John E. Trend - St. Paul MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

C09B 62245
C09B 2304
C09B 2302
C09B 2306

US Classification:

544294

Abstract:

Nonlinear-optic (NLO) compositions containing functionalized merocyanine dyes, such that the molecules, comprising the NLO-active compositions have a functional group at each end of the molecule and each functional group differing in reactivity, thus permitting stepwise reaction of each functional group, and NLO-active molecules prepared from hemioxonol dyes derviatived with (meth)acrylate or (meth)acrylamide groups, and their uses in devices such as second harmonic generators or polymer integrated optics.