John E Buzerak

US Patent:

6833222, Dec 21, 2004

Filed:

Mar 18, 2002

Appl. No.:

10/100348

Inventors:

John E. Buzerak - Poughquag NY
Greg A. Fariss - Poughkeepsie NY
Glenn E. Storm - Ridgefield CT

Assignee:

DuPont Photomasks, Inc. - Round Rock TX

International Classification:

G03F 900

US Classification:

430 5, 156267, 1562728

Abstract:

A method and apparatus for trimming a pellicle film using a laser are disclosed. A laser trimming assembly includes a modified laser-cutting head coupled to a laser. The laser includes a laser beam for trimming a pellicle film that extends beyond a perimeter of a pellicle frame. The modified laser-cutting head includes a nozzle and at least one hose port located on the nozzle. The hose port may receive a vacuum hose for removing particulate matter created during a trimming process.

US Patent:

53564243, Oct 18, 1994

Filed:

Feb 5, 1993

Appl. No.:

8/013871

Inventors:

John E. Buzerak - Poughquag NY
Robert J. Bedard - Southbury CT
Janniah S. Prasad - Norwalk CT
Charles L. Putnam - Fairfield CT
Lester Miller - Danbury CT
Steven I. Becker - Bergen NJ
James Coleman - Richmond, GB2

Assignee:

American Cyanamid Co. - Wayne NJ

International Classification:

A61B 1700

US Classification:

606223

Abstract:

A laparoscopic suturing device includes a suturing needle and a driver for manipulating the needle. The suturing needle features a helically-wound front-end portion with a needle point at its proximal end for penetrating tissue and a rear-end portion connected to the driver. The slender design of the suturing device is ideally suited for minimally-invasive surgery.