Hans W Osterhoudt

US Patent:

53308697, Jul 19, 1994

Filed:

Aug 31, 1993

Appl. No.:

8/114728

Inventors:

John C. Wilson - Rochester NY
Steven M. Bonser - Fairport NY
Hans W. Osterhoudt - Spencerport NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 9107
G03G 9097

US Classification:

4301066

Abstract:

This invention is directed to dry, negatively charged toner compositions and developer compositions which employ, as a charge-control agent, a compound selected from the group consisting of phthalimide, 4-aminophthalimide and 4-tert-butylphthalimide; as well as to methods of utilizing such compositions in electrostatographic imaging systems.

US Patent:

53588185, Oct 25, 1994

Filed:

Aug 31, 1993

Appl. No.:

8/115369

Inventors:

John C. Wilson - Rochester NY
Steven M. Bonser - Fairport NY
Hans W. Osterhoudt - Spencerport NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 9097

US Classification:

4301066

Abstract:

This invention is directed to dry, negatively charged toner compositions and developer compositions, the toner composition being comprised of resin particles prepared from a polyester having a glass transition temperature of 50. degree. to 100. degree. C. and a weight average molecular weight of 20,000 to 100,000 and, as a charge-control agent, from about 0. 1 to about 10 percent by weight based on the weight of the resin particles, of ortho-benzoic sulfimide as represented by the formula: ##STR1##.

US Patent:

49561812, Sep 11, 1990

Filed:

Jun 7, 1988

Appl. No.:

7/203774

Inventors:

Gerald W. Bayer - Rochester NY
Paul A. Diamantopoulos - Rochester NY
Hans W. Osterhoudt - Spencerport NY
Paul F. Schmit - Rochester NY

Assignee:

Eastman Kodak - Rochester NY

International Classification:

A61F 1340

US Classification:

424448

Abstract:

Method and device for treating angina pectoris and preventing tolerance to nitrate drugs which takes into account the frequent need to provide the patient with relief from or prevention of pre-waking or early morning angina. The treatment comprises administering a daily unit dose of the nitrate before bedtime in a dosage form that (1) provides a washout period of 3 to 12 hours by sufficiently retarding delivery of the nitrate to the patient during the washout period so as to provide a rate of delivery of nitrate from the patch that is so low as to be insufficient to cause tolerance to said nitrate in said patient; (2) at the end of the washout period and at least 30 minutes before the patient expects to awaken, initiates an effective delivery period during which the dosage form provides an initial effective delivery rate sufficient to provide an antianginally effective concentration of nitrate in the blood stream of the patient; and (3) thereafter, during a ramp-up delivery period, delivers the nitrate at an increasing rate until a final delivery rate is achieved, which is from 125% to 1,000% of the initial effective delivery rate. At the end of the ramp-up period, delivery is exhausted or otherwise terminated. A new unit dose is administered at bedtime, and the cycle is repeated.

US Patent:

58112146, Sep 22, 1998

Filed:

May 8, 1997

Appl. No.:

8/852985

Inventors:

Hans W. Osterhoudt - Spencerport NY
Robert C. Storey - Rochester NY
Dinesh Tyagi - Fairport NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 908

US Classification:

4301066

Abstract:

A monocomponent electrostatographic developer is disclosed. The developer contains a negative charging toner wherein the toner particle surface contains particles of cerium dioxide and a mixture of two hydrophobic silicon dioxides having a particle size of 0. 005 to 0. 03. mu. m.

US Patent:

45657513, Jan 21, 1986

Filed:

Jun 18, 1984

Appl. No.:

6/621350

Inventors:

Marilyn A. Faust - Rochester NY
Hans W. Osterhoudt - Spencerport NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

H01M 616
H01M 440

US Classification:

429 94

Abstract:

A cathode comprising a current collector coated with a dispersion of (CF. sub. x). sub. n wherein x is equal to or less than 1. 2 and n is an indeterminately large number, a current carrier and a binder characterized in that the current collector is a conductive foil, the binder is sufficiently adhesive to adhere the coated dispersion to the conductive foil and the coated dispersion has a porosity greater than 43 percent. The cathodes are useful in electrochemical cells having light metal anodes.

US Patent:

50663763, Nov 19, 1991

Filed:

Nov 2, 1989

Appl. No.:

7/430998

Inventors:

Hans W. Osterhoudt - Spencerport NY
Ignazio S. Ponticello - Pittsford NY
Kenneth G. Christy - Rochester NY
Wayne A. Bowman - Walworth NY
Jon N. Eikenberry - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G01N 2726
B01D 5702

US Classification:

2041828

Abstract:

A polyacrylamide type gel medium for electrophoresis is conveniently and safely prepared prior to use by crosslinking a water-soluble copolymer of an acrylamide monomer and at least one comonomer copolymerizable therewith, which comonomer contains an active methylene group that will enter into a crosslinking reaction that does not involve a free radical vinyl addition mechanism.

US Patent:

53588142, Oct 25, 1994

Filed:

Aug 31, 1993

Appl. No.:

8/114541

Inventors:

Hans W. Osterhoudt - Spencerport NY
John C. Wilson - Rochester NY
Steven M. Bonser - Fairport NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 9097

US Classification:

4301066

Abstract:

This invention is directed to dry, negatively charged toner compositions and developer compositions, the toner composition being comprised of resin particles prepared from a polyester having a glass transition temperature of 50. degree. to 100. degree. C. and a weight average molecular weight of 20,000 to 100,000 and from about 0. 1 to about 10 percent by weight based on the weight of the resin particles of a mixture of ortho-benzoic sulfimide as represented by the formula: ##STR1## and para-anisic acid as represented by the formula: ##STR2## in a weight ratio of 1:1 as a charge-controlling additive.

US Patent:

53473450, Sep 13, 1994

Filed:

Oct 19, 1992

Appl. No.:

7/963444

Inventors:

Hans W. Osterhoudt - Spencerport NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 2100

US Classification:

355246

Abstract:

Two-color images are created in a single pass by forming an electrostatic image having three levels of electrostatic potential, low, intermediate and high. Toner of a first color is applied to the image in the presence of an electric field urging the toner toward one of the levels of potential. A second toner is applied to the electrostatic image having a second color, but of the same polarity as the first toner, in the presence of a second electric field urging the second toner both toward the areas that have been toned by the first toner and toward one of the other levels of potential. If the first toner is of a dark color and is used for text and the second color is the light color used for highlighting, a quality two-color image can be made in a single pass using toners of the same polarity.