Calixto Estrada

US Patent:

7369010, May 6, 2008

Filed:

Nov 18, 2004

Appl. No.:

10/992448

Inventors:

Robby L. Alvarez - Newark DE, US
Calixto Estrada - Middletown DE, US
Robert J. Rossi - Wilmington DE, US
Zhi-Yuan Shen - Wilmington DE, US

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

H01P 1/203
H01P 3/08

US Classification:

333 99S, 333204, 505700

Abstract:

This invention provides a laser trimming method for tuning the frequency of a spiral resonator, and for improving the characteristics of a high temperature superconductor filter comprised of high temperature superconductor spiral resonators, by tuning the individual high temperature superconductor spiral resonators. This invention also provides a method for tuning the resonance frequency of a high temperature superconductor planar coil. This invention also provides a laser ablation process for creating high temperature superconductor circuit elements.

US Patent:

8524003, Sep 3, 2013

Filed:

Aug 31, 2009

Appl. No.:

12/550766

Inventors:

Peter Francis Carcia - Wilmington DE, US
Calixto Estrada - Middletown DE, US
Richard Dale Kinard - Wilmington DE, US
Robert Scott McLean - Hockessin DE, US
Kirstin H. Shilkitus - Landenberg PA, US

Assignee:

E I du Pont de Nemours and Company - Wilmington DE

International Classification:

C23C 16/00

US Classification:

118718, 118500

Abstract:

A cassette for supporting a film during a gaseous vapor deposition has first and second end plates. A rib on each end plate forms a spiral groove that edgewise receives a spiral wrapping of a film having a width greater than 300 mm. Spaces between turns of the film wrapping define a gas flow channel and spaces between adjacent turns of the rib define a plurality of inlet openings in one end plate that communicate with the channel. Each rib has a predetermined width dimension, a predetermined average thickness dimension, and a width-to-thickness aspect ratio of at least 2:1. The spacing between end plates is at least three hundred millimeters (300 mm) and is also greater than the width dimension of a film substrate at a gaseous deposition temperature. The width dimension of each rib is between about 0. 5% to about 2.

US Patent:

8551249, Oct 8, 2013

Filed:

Aug 31, 2009

Appl. No.:

12/550743

Inventors:

Peter Francis Carcia - Wilmington DE, US
Calixto Estrada - Middletown DE, US
Richard Dale Kinard - Wilmington DE, US
Robert Scott McLean - Hockessin DE, US
Kirstin H. Shilkitus - Landenberg PA, US

Assignee:

E I du Pont de Nemours and Company - Wilmington DE

International Classification:

C23C 16/00

US Classification:

118718, 118500

Abstract:

A cassette for supporting a film during a gaseous vapor deposition process includes a central shaft having first and second end plates. A rib on each end plate forms a spiral groove able to accept an edge of a film. Each rib has a cross sectional configuration having substantially linear major edges, a predetermined width dimension and a predetermined average thickness dimension, and a width-to-thickness aspect ratio of at least 2:1. The rib could be substantially rectangular with an optional flow spoiler at the free end or substantially wedge-shaped. The interspoke spacing between end plates is at least three hundred millimeters (300 mm) and is also greater than the width dimension of a film substrate at a gaseous deposition temperature. The width dimension of each rib is between about 0. 5% to about 2.

US Patent:

20110048639, Mar 3, 2011

Filed:

Aug 31, 2009

Appl. No.:

12/550856

Inventors:

Calixto Estrada - Middletown DE, US
Richard Dale Kinard - Wilmington DE, US
Kirstin H. Shilkitus - Landenberg PA, US

Assignee:

E. I. DU PONT DE NEMOURS AND COMPANY - Wilmington DE

International Classification:

C09J 5/00

US Classification:

156324, 156578

Abstract:

The present invention is an apparatus and method for unloading a film cassette for gaseous vapor deposition. A coated film is transferred from a film cassette and immediately laminated to a protective film while minimizing touching, creasing or cracking the coated film.

US Patent:

52221709, Jun 22, 1993

Filed:

Aug 17, 1992

Appl. No.:

7/931124

Inventors:

Daniel S. Bargar - Hockessin DE
Calixto Estrada - Wilmington DE
Jodie S. Hobson - Wilmington DE
Keith R. Preston - Suffolk, both of, GB2
Craig A. West - Suffolk, GB2

Assignee:

BT&D Technologies Ltd. - Ipswich

International Classification:

C02B 642

US Classification:

385 88

Abstract:

An optical device structure for use where an optical fiber requires to be accurately aligned in an optically coupled relationship with another optical component in a package 100 comprises an optical fiber 16 mounted in a feedthrough tube 9 which is aligned with a laser 6 through an aperture 18 in a wall 4 of the package 100. The alignment is held by a first alignment means 10, in this case a sleeve spool, which is secured to the wall 4 and to the feedthrough tube 9 relatively close to the wall 4, and by a second alignment means 11, in this case a tubular bushing, which is also fixed to the wall 4 and to the feedthrough tube 9 in a region remote from the wall 4. The use of the two alignment means 10, 11 fixed in this manner permits the desired optical coupling to be accurately fine-tuned in fabrication by a novel technique.

US Patent:

48654108, Sep 12, 1989

Filed:

Jan 25, 1988

Appl. No.:

7/147830

Inventors:

Calixto Estrada - Wilmington DE
James D. Hamerslag - West Chester PA
Robert W. Hooley - Wilmington DE
John W. Hunt - Wilmington DE
Melvin H. Johnson - Chadds Ford PA
Duncan D. McCabe - Wilmington DE
Joseph A. Perrotto - Landenberg PA

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

G12B 642

US Classification:

350 9620

Abstract:

A fiber optic device is provided with a feedthrough assembly adapted to decouple deflections imposed on the feedthrough from lensed end of a fiber disposed within the feedthrough assembly.

US Patent:

60606835, May 9, 2000

Filed:

Sep 22, 1998

Appl. No.:

9/157987

Inventors:

Calixto Estrada - Bear DE

Assignee:

Direct Radiography Corp. - Newark DE

International Classification:

B23K 2600

US Classification:

21912169

Abstract:

A process for selectively removing a dielectric layer from a portion of a panel to create a coated and an uncoated region, the process including (a) applying a laser-termination bead on the panel to separate a first region corresponding to the coated region from a second region corresponding to the uncoated region; (b) applying a dielectric coating over the panel and the laser-termination bead; (c) cutting the dielectric layer along the laser-termination bead with a laser beam; and (d) peeling away the dielectric layer from the second region. The panel may be a direct radiography panel; the dielectric layer may be a polymer such as parylene; the laser-termination bead may be an epoxy; and/or the laser may be an excimer laser.