Stephen P Quinn

US Patent:

62918281, Sep 18, 2001

Filed:

Dec 21, 1999

Appl. No.:

9/469068

Inventors:

Kourosh Saadatmand - Merrimac MA
David R. Swenson - Georgetown MA
William F. DiVergilio - Beverly MA
Stephen M. Quinn - Gloucester MA
Zhimin Wan - San Jose CA
Victor M. Benveniste - Gloucester MA

Assignee:

Axchlisrtechnologies, Inc. - Beverly MA

International Classification:

G21K 510
H01J 3708

US Classification:

25049221

Abstract:

An electrostatic quadrupole lens assembly (60) is provided for an ion implanter (10) having an axis (86) along which an ion beam passes, comprising: (i) four electrodes (84a-84d) oriented radially outward from the axis (86), approximately 90. degree. apart from each other, such that a first pair of electrodes (84a and 84c) oppose each other approximately 180. degree. apart, and a second pair of electrodes (84b and 84d) also oppose each other approximately 180. degree. apart; (ii) a housing (62) having a mounting surface (64) for mounting the assembly (60) to the implanter, the housing at least partially enclosing the four electrodes (84a-84d); (iii) a first electrical lead (104) for providing electrical power to the first pair of electrodes (84a and 84c); (iv) a second electrical lead (108) for providing electrical power to the second pair of electrodes (84b and 84d); and (v) a plurality of electrically insulating members (92) formed of a glass-like material, comprising at least a first electrically insulating member for attaching the first pair of electrodes (84a and 84c) to the housing, and at least a second electrically insulating member for attaching the second pair of electrodes (84b and 84d) to the housing. The plurality of electrically insulating members (92) are preferably comprised of quartz (SiO. sub. 2), or a heat resistant and chemical resistant glass material such as Pyrex. RTM.

US Patent:

47143169, Dec 22, 1987

Filed:

Aug 20, 1985

Appl. No.:

6/767492

Inventors:

Wayne E. Moore - Holliston MA
Stephen R. Quinn - Medfield MA
Wesley M. Tufts - Holliston MA
William F. Gasko - Berlin MA

Assignee:

Aster Associates - Milford MA

International Classification:

G02B 626

US Classification:

350 9620

Abstract:

An optical fiber unit consists of one or more optical fibers configured to provide an optical function, a preformed internal protective body having a preformed space into which the fiber(s) extend with a relatively close fit, the internal protective body being of a material of hardness and coefficient of thermal expansion substantially matched to that of the fiber(s) and the fiber(s) being bonded thereto, an outer protective body surrounding the internal protective body, at least a portion of the outer protective body having a preformed recess shaped to receive and support the rigid internal protective body, a mass of relatively soft uniting material disposed in a manner to secure the internal protective body to the preformed portion of the outer protective body, an injection-molded portion of the outer protective body, of substance less brittle than the internal protective body, effectively surrounding and protecting the internal protective body and the fiber(s) therewithin from the environment in which the unit is intended for use, and stress relief means associated with the outer protective body enabling the fiber(s) to extend from the internal protective body through the outer protective body in a manner that is effective to prevent breakage of the fibers under conditions of stress on the fiber(s).

US Patent:

62109642, Apr 3, 2001

Filed:

Aug 14, 1998

Appl. No.:

9/134513

Inventors:

Edward M. Brown - Milton MA
Ruben Diaz - Boston MA
Mei Bai - Brookline MA
Stephen J. Quinn - Sudbury MA

Assignee:

The Brigham and Women's Hospital, Inc. - Boston MA

International Classification:

C07H 2104
C12N 1563
C12N 1585
C12N 1586

US Classification:

435325

Abstract:

The present invention is directed to an avian calcium-sensing receptor and to DNA sequences which encode the receptor. In addition, the invention is directed to methods and compositions which serve to modulate the serum concentration of calcium in humans and animals.

US Patent:

62080954, Mar 27, 2001

Filed:

Dec 23, 1998

Appl. No.:

9/219686

Inventors:

William F. DiVergilio - Beverly MA
Kourosh Saadatmand - Merrimac MA
Stephen M. Quinn - Gloucester MA

Assignee:

Axcelis Technologies, Inc. - Beverly MA

International Classification:

H01P7/00;1/208

US Classification:

315505

Abstract:

A compact coil design is provided for a linear accelerator resonator (70) capable of resonating at a predetermined frequency. The coil (90) comprises a plurality of generally circular coil segments (90a-90n), each of the coil segments having a polygonal cross section wherein flat surfaces (122) of adjacent coil segments face each other. The polygonal cross section may take the form of a rectangle having dimensions of length x and width y, wherein dimension x section defines the flat surfaces (122) of adjacent coil segments (90a-90n). The coil segments (90a-90n) are provided with a dual channel construction for providing the introduction of a cooling medium into the coil. The dual channel construction comprises an inlet passageway (118) and an outlet passageway (120) having separate a separate inlet (100) and outlet (102), respectively, at a first end (94) of the coil, and wherein the inlet and outlet passageways (118, 120) are connected and in communication with each other at a second end (96) of the coil.