Robert A Lieberman

US Patent:

RE336513, Jul 30, 1991

Filed:

Oct 11, 1988

Appl. No.:

7/255918

Inventors:

Greg E. Blonder - Summit NJ
Angelo A. Lamola - Sudbury MA
Robert A. Lieberman - Murray Hill NJ

Assignee:

AT&T Bell Laboratories - Murray Hill NJ

International Classification:

H01G 518
H01G 700
G01L 900

US Classification:

361291

Abstract:

A variable gap device which comprises a suitable material with a cavity formed therein mounted over a body. Elements are formed on the surface of the body and on the top surface of the cavity. In one embodiment, the elements are electrodes of a variable capacitance device, and in another embodiment the elements are partial or total reflectors of incident light from an optical fiber. The surface of the cavity opposite the body is preferably flat and of the order of microns from the body. The device is fabricated by forming a removable layer over a temporary substrate. An appropriate element pattern is formed over the removable layer and the layer is etched in a configuration which will define the cavity. The deformable material is encapsulated over this structure and then removed from the substrate with the element remaining in the cavity. Any removable material remaining in the cavity can then be etched away.

US Patent:

49520148, Aug 28, 1990

Filed:

Apr 17, 1989

Appl. No.:

7/339541

Inventors:

Robert A. Lieberman - New Providence NJ
Raymond Wolfe - New Providence NJ

Assignee:

AT&T Bell Laboratories - Murray Hill NJ

International Classification:

G02B 530

US Classification:

350 9612

Abstract:

An optical system, useful as a magnetometer and as a polarization contoller, is disclosed. The system includes a source of electromagnetic radiation, a detector of electromagnetic radiation, and a magnetizable medium via which the source and detector communicate with one another. The system further includes apparatus for forming at least two adjacent magnetic domains separated by at least one domain wall.

US Patent:

52929655, Mar 8, 1994

Filed:

Jun 14, 1993

Appl. No.:

8/076563

Inventors:

Francis A. Higbie - Bound Brook NJ
Robert A. LieBerman - Naperville IL
Rose Ira M. - Millburn NJ

Assignee:

Diamond Shamrock Chemicals Company

International Classification:

C07C 4311

US Classification:

568623

Abstract:

Radiation curable compositions containing outstanding reactive diluents have been developed. The diluents are lower alkyl ether acrylates and methacrylates of particular alkoxylated and non-alkoxylated polyols. Examples are mono-methoxy trimethylolpropane diacrylate, mono-methoxy neopentyl glycol monoacrylate and mono-methoxy, ethoxylated neopentyl glycol monoacrylate having an average of about two moles of ethylene oxide.

US Patent:

50535544, Oct 1, 1991

Filed:

Jan 30, 1990

Appl. No.:

7/472138

Inventors:

Francis A. Higbie - Bound Brook NJ
Robert A. LieBerman - Naperville IL
Ira M. Rose - Millburn NJ

Assignee:

Diamond Shamrock Chemical Company

International Classification:

C07L 4311

US Classification:

568622

Abstract:

Radiation curable compositions containing outstanding reactive diluents have been developed. The diluents are lower alkyl ether acrylates and methacrylates of particular alkoxylated and non-alkoxylated polyols. Examples are mono-methoxy trimethylolpropane diacrylate, mono-methoxy neopentyl glycol monoacrylate and mono-methoxy, ethoxylated neopentyl glycol monoacrylate having an average of about two moles of ethylene oxide.

US Patent:

51108895, May 5, 1992

Filed:

Nov 29, 1990

Appl. No.:

7/619818

Inventors:

Francis A. Higbie - Bound Brook NJ
Robert A. LieBerman - Naperville IL
Ira M. Rose - Millburn NJ

Assignee:

Diamond Shamrock Chemical Co. - Dallas TX

International Classification:

C08F 1800

US Classification:

526320

Abstract:

Radiation curable compositions containing outstanding reactive diluents have been developed. The diluents are lower alkyl ether acrylates and methacrylates of particular alkoxylated and non-alkoxylated polyols. Examples are mono-methoxy trimethylolopropane diacrylate, mono-methoxy neopentyl glycol monoacrylate and mono-methoxy, ethoxylated neopentyl glycol monoacrylate having an average of about two moles of ethylene oxide.

US Patent:

47094133, Nov 24, 1987

Filed:

Jun 13, 1985

Appl. No.:

6/744465

Inventors:

Stephen R. Forrest - Chatham NJ
Robert A. Lieberman - New Providence NJ
Richard L. Panock - Lexington MA

Assignee:

American Telephone and Telegraph Company, AT&T Bell Laboratories - Murray Hill NJ

International Classification:

H04B 900
C12M 134
A61B 502

US Classification:

455606

Abstract:

A bidirectional fiber optic system is described in which at one terminal the output radiation of a light source (LED or semiconductor laser) is coupled through a small diameter hole in the active area of a photodiode into the core of a larger diameter transmission fiber. On the other hand, radiation propagating through the fiber in the opposite direction exits from the fiber with a large numerical aperture so that most of it is incident on the active area of the photodiode and little is lost through the hole. Also described are a number of photodiode configurations for use in such a system, as well as dual photodiodes to perform both signal detection and output monitoring functions. Further described are fiber optic sensing systems for monitoring such variables as blood pressure.

US Patent:

48763845, Oct 24, 1989

Filed:

Apr 8, 1986

Appl. No.:

6/849301

Inventors:

Francis A. Higbie - Bound Brook NJ
Robert A. LieBerman - Naperville IL
Ira M. Rose - Millburn NJ

Assignee:

Diamond Shamrock Chemicals Co. - Dallas TX

International Classification:

C07C 6952

US Classification:

560224

Abstract:

Radiation curable compositions containing outstanding reactive diluents have been developed. The diluents are lower alkyl ether acrylates and methacrylates of particular alkoxylated and non-alkoxylated polyols. Examples are mono-methoxy trimethylolpropane diacrylate, mono-methoxy neopentyl glycol monoacrylate and mono-methoxy, ethoxylated neopentyl glycol monoacrylate having an average of about two moles of ethylene oxide.

US Patent:

44170238, Nov 22, 1983

Filed:

Feb 10, 1982

Appl. No.:

6/347512

Inventors:

Joseph V. Sinka - Mendham NJ
Robert A. LieBerman - Hopatcong NJ

Assignee:

Diamond Shamrock Corporation - Dallas TX

International Classification:

C08F 248

US Classification:

524731

Abstract:

Flatting agents, such as silica, talc and carbonates are present in radiation hardenable compositions in order to reduce gloss and obtain a flat appearance in cured coating. However, the flatting agent settles in the radiation-hardenable composition. To reduce settling of the flatting agent, one or more stabilizers are added to the composition. Useful stabilizers are alkylene oxide adducts of particular siloxane copolymers.