Brian J Fitzpatrick

US Patent:

45476993, Oct 15, 1985

Filed:

Dec 27, 1982

Appl. No.:

6/453379

Inventors:

Brian J. Fitzpatrick - Ossining NY

Assignee:

North American Philips Corporation - New York NY

International Classification:

H01J 2918
H01J 516
H01J 3100

US Classification:

313478

Abstract:

A CRT device for generating a bright green light spot is shown. The device employs a terbium activated phosphor. Troublesome radiations emitted by the phosphor particularly in the 586 nm region are significantly decreased without significant decrease of the desired 544 nm radiation by use of a concentrated solution of a soluble praseodymium salt.

US Patent:

46267409, Dec 2, 1986

Filed:

Oct 9, 1984

Appl. No.:

6/659103

Inventors:

Brian J. Fitzpatrick - Ossining NY

Assignee:

North American Philips Corporation - New York NY

International Classification:

H01J 3100
H01J 2910
H01J 516

US Classification:

313478

Abstract:

Undesired light radiations emitted by europium activated red luminescent phosphors employed in projection color televisions are greatly reduced, with essentially no reduction in the desired radiation, by employing as a filter a solution containing a soluble holmium salt and a soluble neodymium salt.

US Patent:

50153285, May 14, 1991

Filed:

Sep 14, 1989

Appl. No.:

7/407378

Inventors:

Brian J. Fitzpatrick - Ossining NY
Phyllis M. Harnack - Hastings on Hudson NY

Assignee:

North American Philips Corporation - New York NY

International Classification:

C30B 1912

US Classification:

156624

Abstract:

A method for producing an optical waveguide which comprises imersing a wafer of K. sub. 1-x Rb. sub. x TiOMO. sub. 4, wherein 0. ltoreq. x. ltoreq. 1, and M is P or As, for 1-64 hours in molten potassium nitride at 400. degree. -500. degree. C. , followed by washing and immersing in a molten salt of Rb, Cs, or Tl at 240. degree. -335. degree. C. , thereby causing the Rb, Cs, or Tl to replace the K or Rb cations. The resultant product has reduced mechanical damage to the waveguide surface.

US Patent:

55219349, May 28, 1996

Filed:

Nov 22, 1994

Appl. No.:

8/343311

Inventors:

Brian J. Fitzpatrick - Ossining NY

Assignee:

North America Phiips Corporation - New York NY

International Classification:

H01S 319

US Classification:

372 45

Abstract:

A material for use in a laser heterostructure which is lattice matched material to ZnSe and has a high band gap. The material is Mg. sub. y Zn. sub. 1-y S. sub. x Se. sub. 1-x with the ratio of sulphur to magnesium of 0. 28/0. 19. Lasing devices constructed from layers of this material and ZnSe can be either electron beam pumped or electrically driven.

US Patent:

46174907, Oct 14, 1986

Filed:

Dec 7, 1984

Appl. No.:

6/679191

Inventors:

Brian J. Fitzpatrick - Ossining NY
Phyllis M. Harnack - Hastings-on-Hudson NY

Assignee:

North American Philips Corporation - New York NY

International Classification:

H01J 3100
H01J 516

US Classification:

313478

Abstract:

Halos occurring around bright light spots generated by cathode ray tube devices in which the light emitted by the tubes is filtered by filtering solutions are significantly reduced by the addition of cinnamic alcohol and/or cinnamaldehyde to the solution.

US Patent:

47254483, Feb 16, 1988

Filed:

Dec 5, 1986

Appl. No.:

6/938665

Inventors:

Brian J. Fitzpatrick - Ossining NY

Assignee:

North American Philips Corporation - New York NY

International Classification:

B05D 302

US Classification:

427 451

Abstract:

A method for selectively applying light-absorbing particles to a lenticular, light-transmissive screen, such as a projection television screen. The particles are charged and are selectively deposited in grooves between lenticules of the screen by electrically charging the lenticule peaks to the same polarity, to effect repulsion, and then depositing the particles onto the screen. The particles consist essentially of a material having a substantially higher microwave absorption coefficient than the screen material and have heat-fusible outer surfaces. After deposition, the particles are selectively heated by generally-applied microwave radiation, until they fuse to each other and to the screen.

US Patent:

46923594, Sep 8, 1987

Filed:

Dec 5, 1986

Appl. No.:

6/938664

Inventors:

Brian J. Fitzpatrick - Ossining NY

Assignee:

North American Philips Corporation - New York NY

International Classification:

B05D 302

US Classification:

427 451

Abstract:

A method for selectively applying particles having cores of magnetically-permeable material and outer, fusible surfaces to a lenticular, light-transmissive screen, such as a projection television screen. The particles are selectively deposited in grooves between lenticules of the screen by magnetically attracting the particles to tips of a particle carrier sheet which positionally correspond with the grooves in the screen. The screen is then positioned underneath the carrier sheet, and the magnetic attractive force is reduced to effect release of the particles into the grooves of the screen. Microwave radiation is applied to the screen with the deposited particles, and the magnetically-permeable cores concentrate microwave energy dissipation in the particles and effect selective heating of the particles until their outer surfaces fuse to each other and to the screen.

US Patent:

47010193, Oct 20, 1987

Filed:

Dec 5, 1986

Appl. No.:

6/938669

Inventors:

Brian J. Fitzpatrick - Ossining NY

Assignee:

North American Philips Corporation - New York NY

International Classification:

G03B 2160
B05D 506

US Classification:

350127

Abstract:

Light-absorbing particles are selectively applied to a lenticular light-transmissive screen, such as a projection television screen. The particles are selectively deposited in grooves between lenticules of the screen by filling the grooves to a predetermined depth with a slurry comprising a mixture of a volatile liquid and the light-absorbing particles. Microwave radiation is applied to the screen with the deposited particles, to effect evaporation of any unevaporated liquid and fusing of the particles to each other and to the screen.