Stuart F Cogan

US Patent:

20100198297, Aug 5, 2010

Filed:

Jan 14, 2010

Appl. No.:

12/687675

Inventors:

Stuart F. Cogan - Sudbury MA, US
Philip R. Troyk - Morton Grove IL, US
John S. Ebersole - Chesterton IN, US
Vernon L. Towle - Chicago IL, US

International Classification:

A61N 1/36

US Classification:

607 45

Abstract:

Subdural arrays transmit electrocorticogram recordings wirelessly, across the patient's skull, allowing the craniotomy used for surgical placement of the arrays to be completely closed. In various embodiments, the arrays also respond to commands, applying signal patterns to the patient's brain for diagnostic and treatment purposes.

US Patent:

52883817, Feb 22, 1994

Filed:

Oct 25, 1991

Appl. No.:

7/783061

Inventors:

Stuart F. Cogan - Sudbury MA
R. David Rauh - Newton MA

Assignee:

E.I.C. Laboratories - Norwood MA

International Classification:

C23C 1434

US Classification:

20419226

Abstract:

A method for preparing an oxidatively coloring electrochromic layer of composition M. sub. y CrO. sub. 2+x (0. 33. ltoreq. y. ltoreq. 2. 0 and x. ltoreq. 2) where M=Li, Na or K and an electrochromic devise employing this layer with improved transmittance modulation, improved thermal and environmental stability, and improved resistance to degradation in organic liquid and polymeric electrolytes. The M. sub. y CrO. sub. 2+x provides complementary optical modulation to cathodically coloring materials in thin-film electrochromic glazings and electrochromic devices employing polymeric Li. sup. + ion conductors.

US Patent:

49385712, Jul 3, 1990

Filed:

Jun 16, 1988

Appl. No.:

7/207496

Inventors:

Stuart F. Cogan - Norwood MA
R. David Rauh - Norwood MA

International Classification:

G02F 117

US Classification:

350357

Abstract:

An all solid-state variable transmission electrochromic device has a source of charge compensating ions. An inorganic oxide counterelectrode film which on reduction with the accompanying insertion of the charge compensating ions increases its transmission of light of predetermined wavelength is separated from a primary electrochromic film which on reduction with the accompanying insertion of the charge compensating ions decreases its transmission of light of predetermined wavelength by an insulating electrolyte film that transports the charge compensating ions. First and second electrodes are contiguous with the inorganic oxide counter electrode film and the primary electrochromic film, respectively, and separated by the three films.

US Patent:

53272811, Jul 5, 1994

Filed:

Apr 23, 1992

Appl. No.:

7/872224

Inventors:

Stuart F. Cogan - Sudbury MA
R. David Rauh - Newton MA

Assignee:

EIC Laboratories - Norwood MA

International Classification:

G02F 1153
G02B 523

US Classification:

359270

Abstract:

Polymer electrolytes comprising co-polymers of vinylic, protonic acids and N,N' dialkyl substituted acrylamides and methacrylamides with high anodic stability, reduced acidity and high mechanical stiffness suitable for electrochromic devices, such as windows, mirrors and information displays. A preferred embodiment of the invention is a co-polymer with a composition of 30% 2-acrylamido-2-methyl propane sulfonic acid, 50% N,N dimethyl acrylamide and 20% water by weight.

US Patent:

57680043, Jun 16, 1998

Filed:

Jul 11, 1996

Appl. No.:

8/678724

Inventors:

Stuart F. Cogan - Sudbury MA

Assignee:

EIC Laboratories, Inc. - Norwood MA

International Classification:

G02F 1155

US Classification:

359269

Abstract:

An electro-optical device having an oxidatively coloring electrochromic layer of composition Mn. sub. x V. sub. y O. sub. z, where 0. 05 x/y

US Patent:

57557594, May 26, 1998

Filed:

Mar 14, 1996

Appl. No.:

8/616125

Inventors:

Stuart F. Cogan - Sudbury MA

Assignee:

EIC Laboratories, Inc. - Norwood MA

International Classification:

A61N 105

US Classification:

607116

Abstract:

A biomedical device provided with a protective overlayer with high electronic resistivity and low permeability to H. sub. 2 O; the protective overlayer comprising at least one thin film of amorphous silicon oxycarbide (a-SiOC:H) in which the oxygen/carbon ratio is such that the electronic resistivity of the a-SiOC:H is greater than 10. sup. 14. OMEGA. -cm and the H. sub. 2 O permeability is less than 5. times. 10. sup. 14 molecules/sec-cm. sup. 2.

US Patent:

55305814, Jun 25, 1996

Filed:

May 31, 1995

Appl. No.:

8/456268

Inventors:

Stuart F. Cogan - Sudbury MA

Assignee:

EIC Laboratories, Inc. - Norwood MA

International Classification:

G02F 115
G02F 103

US Classification:

359265

Abstract:

An electro-optical device comprising a series of thin films with an electrically controllable optical state provided with a protective overlayer that has a high optical transmittance and high resistance to penetration by H. sub. 2 O. The protective overlayer is a film of amorphous silicon oxycarbide (a-SiOC:H) having an O to C ratio such that the optical absorption edge of the a-SiOC:H is 3 eV or greater and the H. sub. 2 O transport through a 500 nm thick film of a-SiOC:H is 10. sup. 12 molecules/cm. sup. 2 -s or less.

US Patent:

50804715, Jan 14, 1992

Filed:

Apr 6, 1990

Appl. No.:

7/506340

Inventors:

Stuart F. Cogan - Sudbury MA
R. David Rauh - Newton MA

Assignee:

EIC Laboratories, Inc. - Norwood MA

International Classification:

G02F 101

US Classification:

359275

Abstract:

An oxidatively coloring electrochromic layer of composition M. sub. y CrO. sub. 2+x (0. 33. ltoreq. y. ltoreq. 2. 0 and x. ltoreq. 2) where M=Li, Na or K with improved transmittance modulation, improved thermal and environmental stability, and improved resistance to degradation in organic liquid and polymeric electrolytes. The M. sub. y CrO. sub. 2+x provides complementary optical modulation to cathodically coloring materials in thin-film electrochromic glazings and electrochromic devices employing polymeric Li. sup. + ion conductors.