US Patent No: 4,853,020

Number of patents in Portfolio can not be more than 2000

Method of making a channel type electron multiplier

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Abstract

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A microchannel electron multiplier is formed by placing into a glass tube a plurality of bundles optical fibers, each having an etchable glass core and a glass cladding which is non-etchable when subjected to the conditions used for etching the core material. The fiber bundles located around the inside edge of the glass tube are replaced by support fibers having both a core and a cladding of a material which is non-etchable under the above-described conditions. The assembly of the tube, bundles and support fibers is heated to fuse the tube, bundles and support fibers together. The etchable core material is then removed and the assembly sliced into wafers. The inner surface of each of the claddings which bound the channel formed after removal of the core material is rendered electron emissive by reduction of the lead oxide by hydrogen gas. Metal films are deposited onto the opposed surfaces of each of the wafers to form contacts.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ITT INDUSTRIES, INC.NEW YORK, NY668
ITT ELECTRO OPTICAL PRODUCTS, A DIVISION OF ITT CORPORATIONROANOKE, VA9

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sink, Ronald A Roanoke, VA 4 75

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Corning Glass Works (1)
4,767,430 Optical fiber-device interconnection and method 13 1985
 
FUJI PHOTO OPTICAL CO., LTD. (1)
4,710,216 Method of making flexible optical fiber bundle 4 1985
 
LITTON SYSTEMS, INC. (1)
4,385,092 Macroboule 14 1965
 
SHOWA ELECTRIC WIRE & CABLE CO., LTD. (1)
4,682,849 Optical fiber junction and method of making same 16 1986
 
VANBRAGT, WILLY H., AS TRUSTEE OF THE VANBRAGT 1992 REVOCABLE TRUST - DATED 4/27/1992 (1)
4,650,509 Fluid lamp fabrication method 11 1985
 
WARNER-LAMBERT TECHNOLOGIES, INC., A TX CORP. (1)
4,389,089 Flexible fiber optical conduit and method of making 16 1980

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
CORNING INCORPORATED (8)
6,596,237 Redrawn capillary imaging reservoir 14 1999
6,350,618 Redrawn capillary imaging reservoir 14 1999
6,479,129 Titanium-coating silica glass honeycomb structure from silica soot extrusion 6 2000
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6,884,626 Redrawn capillary imaging reservoir 7 2000
6,762,061 Redrawn capillary imaging reservoir 12 2000
6,444,133 Method of making photonic band gap fibers 39 2000
7,492,998 Fiber bundles and methods of making fiber bundles 0 2004
 
The United States of America as represented by the Secretary of the Navy (6)
5,264,722 Nanochannel glass matrix used in making mesoscopic structures 46 1992
5,306,661 Method of making a semiconductor device using a nanochannel glass matrix 15 1993
5,866,244 Ceramic structure with backfilled channels 8 1996
5,961,661 Ceramic structure with backfilled channels 2 1998
6,185,961 Nanopost arrays and process for making same 43 1999
6,711,918 Method of bundling rods so as to form an optical fiber preform 18 2001
 
ZT3 TECHNOLOGIES, INC. (6)
7,559,215 Methods of drawing high density nanowire arrays in a glassy matrix 5 2005
7,530,239 Method of drawing a glass clad multi core lead telluride wire 4 2007
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APPLERA CORPORATION (2)
7,384,606 Bead dispensing system 2 2003
7,211,148 Apparatus and method for spotting a substrate 5 2005
 
APPLIED BIOSYSTEMS, LLC (2)
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UT-BATTELLE, LLC (2)
7,707,854 Method of producing microchannel and nanochannel articles 2 2007
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AVENTIS RESEARCH & TECHNOLOGIES GMBH & CO. KG (1)
6,548,142 Silica glass honeycomb structure from silica soot extrusion 23 2000
 
CANADIAN IMPERIAL BANK OF COMMERCE (1)
5,176,728 Method of making a mirror having extremely small aperture holes at other than normal angles to the surfaces of the mirror 7 1991
 
GENERAL ELECTRIC COMPANY (1)
7,730,748 Method of making a post-patent collimator assembly 0 2003
 
HAMAMATSU PHOTONICS K.K. (1)
8,402,791 Microchannel plate and process for producing the same 0 2005
 
ITT MANUFACTURING ENTERPRISES, INC. (1)
6,300,709 Microchannel plates (MCPs) having micron and submicron apertures 3 2000
 
NANOSCIENCES CORPORATION (1)
6,045,677 Microporous microchannel plates and method of manufacturing same 19 1997
 
ROBERT BOSCH GMBH (1)
6,981,904 Anodically-bonded elements for flat panel displays 0 2003
 
The Boeing Company (1)
7,419,308 Fiber bundle termination with reduced fiber-to-fiber pitch 6 2006
 
Other [Check patent profile for assignment information] (3)
5,772,903 Tapered capillary optics 9 1996
6,738,552 Pressed capillary optics 4 2002
7,881,577 Nanotube structures and methods for making and using nanotube structures 1 2006