[ M ] [ N ]

[ M ]

MacDonald, Thomas H.

*U.S. Patent No. 569,290 , 10/13/1896 (app. 11/02/1895, no model, serial 567,729) GRAPHOPHONE. (class: 369/223; 369/245) MacDonald, Thomas H. of Bridgeport, CT (assignee: The American Graphophone Company of WV) [DjVu343KB]

MacKenzie, Louis G.

Founder: MacKenzie Laboratories 1954.

Patents:
*U.S. Patent No. 2,699,332 , 01/11/1955 (app.11/13/1951, serial: 255,917) MEANS FOR ACTUATING AN ENDLESS TAPE OR THE LIKE (class: 242/326.3; 242/327; 352/128; 360/93; 360/132; D19/68) MacKenzie, Louis G. of Monrovia, CA (assignee: Magna Electronics Co. of Los Angeles, CA) [Pt-OCR39KB] [DjVu196KB]

*U.S. Patent No. 3,126,162 , 03/24/1964 (app. 12/24/1958, serial: 782,836) ACTUATING MECHANISM FOR ENDLESS TAPE CARTRIDGES (class: 242/326.1; 226/110; 226/181; 360/69; 360/92) MacKenzie, Louis G. of Inglewood, CA [Pt-OCR49KB] [DjVu274KB]

McLain, Francis

McLain, a British officer with the Psychological Warfare Division during World War II, an associate of John Herbert Orr.

Auburn University Archives and Manuscripts Department: Electrical Engineering Oral History Interviews, Part of RG 755

McRitchie, Don

Current: Historian and Webmaster

Lansing Heritage Web Site (http://www.audioheritage.org) - Don McRitchie, Historian and Webmaster. Company and Product History, Altec-Lansing, James B. Lansing (JBL Professional), et. al.

Macatee, Steve

Director of New Product Development & Training - Rane Corp.

Developed the Model RPM 26 for Rane.

Madgen, William Leonard

*U.S. Patent No. 490,450, 01/24/1893 (app. 04/10/1890, no model, serial 347,407) (Patented in England, 12/07/1888, No. 17,987) COIN-FREED MACHINE. (class: 194/282; 194/346) Madgen, William Leonard of London, England [DjVu122KB]

Madsen, Erik Markvard Christopher Rorback

Patents:
*U.S. Patent No. 3,299,219 , 01/17/1967 (app: 04/08/1963 - serial: 271,379) STEREOPHONIC TRANSDUCER CARTRIDGE (class:369/139) Madsen, Erik Markvard Christopher Rorback of Gimsingehoje, Struer, Denmark (assignee: A/S Bang & Olufsen of Produktiousselskah, Struer, Denmark) [DjVu217KB]

Martin, “Hardy” Hardison

Currently: Innovative Electronic Designs, President

Patents:
U.S. Patent No. 4,571,554 , 02/18/1986 (app: 10/20/1983, serial 543,923) BALANCED AMPLIFIER DEVICE (class: 330/252; 330/171; 330/297 - international: H03F 003/45) Martin, Hardison G. of Louisville, KY and Ponto, Robert of Louisville, KY (assignee: Innovative Electronic Designs, Inc. of Louisville, KY) [PtTxt44KB] [DjVu*55KB]

Martin, Lynn

Currently: Allen & Heath USA, President

Mead, Harold Bertram

*U.S. Patent No. 1,878,162 , 09/20/1932 (app. 11/30/1931) CONICAL DIAPHRAGM FOR SOUND REPRODUCING AND RECORDING APPARATUS (class: 369/160; 181/163; 381/186; 381/432) Mead, Harold Bertram [abstract] [DjVu77KB]

Merrey, Davis

Altec Lansing Professional (ed 08/02/02)

Meyer, Rolf

Currently: Sennheiser electric - President

Miessner, Benjamin F.

*U.S. Patent No. 1,830,402 , 11/03/1931 Electromagnetic Sound Reproducer Miessner, Benjamin F. (assignee Miessner Inventions, Inc.) [abstract] [DjVu156KB]

Millikan, Robert Andrews

Resources:
David Goodstein - In the Case of Robert Andrews Millikan (PDF) - American Scientist, Jan-Feb 2001

Mills, Thomas F.

U.S. Patent No. 3,992,585, 11/16/1976 (app. 10/06/1975, serial 620,537) SELF-ENERGIZING ELECTROSTATIC LOUDSPEAKER SYSTEM (class: 381/110; 381/116; 381/191, international: H04R 003/00) Turner; Jacob C. of Milwaukee, WI and Elliott, Douglas M. of Milwaukee, WI and Grodinsky; Robert M. of Skokie, IL and Mills, Thomas F. of Chicago, IL (assignee:  Koss Corporation of Milwaukee, WI) [Pt-Txt26KB] [DjVu135KB]

Minton, John Preston

c1937 RCA

*U.S. Patent No. 2,084,160 , 06/15/1937 Filter System for Loudspeakers Minton, John Preston and Ringel, Abraham S. (assignee Radio Corporation of America) [abstract] [DjVu112KB]

Mitchell, J.E.

Currently: Frazier Loudspeakers, President

Mize, Lewis

Former staff engineer at White Instruments. Developed the System 200 Signal Analyzer.

Montross, Levi H.

*U.S. Patent No. 598,529, 02/08/1898 (app. 10/08/1896, no model, serial 608,207) SPRING-MOTOR. (class: 185/45) Montross, Levi H. of Camden, NJ [DjVu84KB]

Moore, Clarence

Founder 1947: International Radio and Electronics Corporation which became Crown International, Inc. in 1975.

A mid-1950s pic of Clarence Moore and his son, Clyde, with a few of Crown's early tape recorders - from 2002 press release Crown Celebrates 55th Anniversary [PDF110KB]

Patents:
*U.S. Patent No. 2,873,318 , 02/10/1959 (app. 11/25/1953, serial 394,260) MAGNETIC RECORDER (class: 360/90; 242/352.2; 242/352.5; 318/760; 360/130.32) Moore, Clarence C. of Elkhart, IN [DjVu186KB] [Comments]

Moore, Clyde

Morton, David

Mr. Morton holds the B.A. degree in history from the University of Georgia, the M.S. degree in history from Auburn University, and is an advanced Ph.D. candidate in history of technology at Georgia Institute of Technology. His dissertation, under the direction of Bruce Sinclair and James Brittain, is on the history of magnetic recording. He has already published articles on Edwin Armstrong and the history of FM radio, the commercialization of FM radio, Amos Joel and the history of telephone switching, and John Herbert Orr and the magnetic recording industry. Mr. Morton is currently the holder of the IEEE Fellowship in Electrical History and a National Science Foundation fellowship.

Morton, David: A History of The Eight Track Tape

Morton, David: John Herbert Orr, tape recording pioneer, and founder of Orradio Industries, Inc.

Morton, David Lindsay, Jr. "The History of Magnetic Recording in the United States, 1888-1978." Ph.D. thesis, Georgia Institute of Technology, 1995, p. 340-379. Morton, David Lindsay, Jr.

 "'The Rusty Ribbon': John Herbert Orr and the Making of the Magnetic Recording Industry, 1945-1960." Business History Review 67, Winter 1993.

Mosely, John deS.

dbx alumni

Mullis, Glenn

President, Production Intercom, Inc., Barrington, IL

Former E-V Canada representative.

Murphy, James

Patents:
U.S. Patent No. 4,583,245 , 04/15/1986 (app. 06/14/1984, serial 620,512) SPEAKER SYSTEM PROTECTION CIRCUIT (class: 381/59; 381/96; 381/100, international: H04R 029/00) Gelow, William J. of Placentia, CA and Murphy, James of San Rafael, CA (assignee: Renkus-Heinz, Inc. of Irvine, CA) [PtTxt60KB] [DjVu*186KB]

Murphy, William

Currently: Protech Audio Corporation - Director of Marketing

Myers, Bruce

DPA Microphones - President

[ N ] top

Nemoto, Mitsuo

Patents:
*U.S. Patent No. 3,761,647 , 09/25/1973 (app: 08/13/1969 - serial: 849,767) CARTRIDGE FOR DETECTING VIBRATIONS REPRESENTING STEREOPHONIC SOUND (class: 179/100.41 K, 274/37 - international: H04r 11/12) Nemoto, Mitsuo of Tokyo, Japan and Honma, Kimiyasu of Tokyo, Japan (assignee: Kabushiki Kaisha Audio-Technica of Tokyo, Japan) [DjVu188KB]

U.S. Patent No. 3,983,335, 09/28/1976 (app: 10/23/1974, serial: 517,044) STYLUS ASSEMBLY AND TRANSDUCER USING SAME (class: 369/136; 369/149; 369/170 - international: H04R 011/12) Nemoto, Mitsuo of Machida, Japan (assignee: Kabushiki Kaisha Audio-Technica of Machida, Japan) [Pt-Txt40KB] [DjVu64KB*]

U.S. Patent No. 4,075,418, 02/21/1978 (app: 05/23/1975 - serial: 580,159) STEREOPHONIC PICKUP CARTRIDGE (class: 369/139; 369/147; 369/170 - international: H04R 011/12) Nemoto, Mitsuo of Machida, Japan and Honma, Kimiyasu of Kokubunji, Japan (assignee: Kabushiki Kaisha Audio-Technica of Machida, Japan) [Pt-Txt60KB] [DjVu151KB*]

U.S. Patent No. 4,124,783, 11/07/1978 (app: 03/31/1977 - serial: 783,403) PHONOGRAPHIC PICKUP (class: 369/139 - international: H04R 009/16) Nemoto, Mitsuo of Machida, Japan (assignee: Kabushiki Kaisha Audio-Technica of Tokyo, Japan) [Pt-Txt40KB] [DjVu73KB*]

Newman, Ray

c1973 Electro-Voice: "The idea for constant directivity came from John Gilliam and, in particular, Ray Newman, as I recall." Jim Long - Keith Clark Interview

Nicolson, Alexander M.

c1933 Wired Radio, Inc. - New York, NY

*U.S. Patent No. 1,931,235 , 10/17/1933 Sound Reproducing System Nicolson, Alexander McLean (assignee Wired Radio, Inc.) [abstract] [DjVu113KB]

Noble, James J.

* U.S. Patent No. 3,624,298, 11/30/1971 [ DjVu 256 KB ]
Sound Improving Means and Method
Davis, Arthur C.; Davis, Donald B.; Noble, James J.
Assignee: LTV Ling Altec, Inc.

Norris, Elwood G.

Currently: American Technology Corporation, Chairman

Patents:
U.S. Patent No. 4,539,708 , 9/3/1985 (app: 7/1/1983, serial: 511,360) EAR RADIO (class: 455/500; 455/100; 455/232.1; 455/351, international: H04B 007/00; H04B 001/08) Norris, Elwood G. of Salt Lake City, UT (assignee: American Technology Corporation of Salt Lake City, UT) [PtTxt39KB] [DjVu*101KB]

U.S. Patent No. 5,313,663, 5/17/1994 (app: 5/8/1992, serial: 879,929) EAR MOUNTED RF RECEIVER (class: 455/351; 455/347; 455/350; D14/223, international: H04B 001/08) Norris, Elwood G. of Poway, CA (assignee: American Technology Corporation of Poway, CA) [PtTxt29KB] [DjVu*75KB]

U.S. Patent No. 5,689,269, 11/18/1997 (app: 1/25/1995, serial: 377,973) GPS relative position detection system (class: 342/357.08; 701/213, international: H04B 007/185; G01S 005/02) Norris, Elwood G. of Poway, CA (assignee: American Technology Corporation of Poway, CA) [PtTxt50KB] [DjVu*KB]

U.S. Patent No. 5,781,150, 7/14/1998 (app: 10/13/1995, serial: 542,799) GPS relative position detection system (class: 342/357.08; 342/419, international: H04B 007/185; G01S 005/02) Norris, Elwood G. of Poway, CA (assignee: American Technology Corporation of Poway, CA) [PtTxt50KB] [DjVu*KB]

U.S. Patent No. 5,859,915, 1/12/1999 (app: 4/30/1997, serial: 846,637) LIGHTED ENHANCED BULLHORN (class: 381/75; 381/77; 381/82, international: H04R 027/04) Norris, Elwood G. of Poway, CA (assignee: American Technology Corporation) [PtTxt46KB] [DjVu*119KB]

U.S. Patent No. 5,885,129, 3/23/1999 (app: 3/25/1997, serial: 826,395) DIRECTABLE SOUND AND LIGHT TOY (class: 446/405; 446/473, international: A63H 005/04; A63H 033/30) Norris, Elwood G. of Poway, CA (assignee: American Technology Corporation of Poway, CA) [PtTxt50KB] [DjVu*69KB]

U.S. Patent No. 5,889,870, 3/30/1999 (app: 7/17/1996, serial: 684,311) ACOUSTIC HETERODYNE DEVICE AND METHOD (class: 381/77; 381/79, international: H04B 003/00) Norris, Elwood G. of Poway, CA (assignee: American Technology Corporation of Poway, CA) [PtTxt69KB] [DjVu*113KB]

U.S. Patent No. 5,966,452, 10/12/1999 (app: 3/7/1997, serial: 814,717) SOUND REDUCTION METHOD AND SYSTEM FOR JET ENGINES (class: 381/71.1; 381/71.8, international: A61F 011/06; H03B 029/00) Norris, Elwood G. of Poway, CA (assignee: American Technology Corporation of Poway, CA) [PtTxt33KB] [DjVu*71KB]

U.S. Patent No. 6,044,160, 3/28/2000 (app: 1/13/1998, serial: 6,133) RESONANT TUNED, ULTRASONIC ELECTROSTATIC EMITTER (class: 381/191; 381/116; 381/174, international: H04R 025/00) Norris, Elwood G. of Poway, CA (assignee: American Technology Corporation of San Diego, CA) [PtTxt40KB] [DjVu*76KB]

U.S. Patent No. 6,108,427, 8/22/2000 (app: 6/4/1997, serial: 868,739) METHOD AND APPARATUS FOR ELIMINATING AUDIO FEEDBACK (class: 381/83; 381/77; 381/93, international: H04R 027/00) Norris, Elwood G. of Poway, CA and Bank, Jeevan of San Diego, CA (assignee: American Technology Corporation (DE))) [PtTxt33KB] [DjVu*78KB]

U.S. Patent No. 6,108,433, 8/22/2000 (app: 1/13/1998, serial: 6,689) METHOD AND APPARATUS FOR A MAGNETICALLY INDUCED SPEAKER DIAPHRAGM (class: 381/399; 367/140; 381/162; 381/360; 381/406; 381/408, international: H04R 025/00) Norris, Elwood G. of Poway, CA (assignee: American Technology Corporation of San Diego, CA) [PtTxt50KB] [DjVu*103KB]

Nussdorfer, Dale A.

Patents:
U.S. Patent No. D248,647 , 07/25/1978 (app: 04/14/1976 - serial: 676,851) LOUDSPEAKER (class: D14/216 - international: D1401/) Nussdorfer, Dale A. of Anaheim, CA (assignee: Altec Corporation of Anaheim, CA) [PtTxt5KB] [DjVu*53KB]

U.S. Patent No. D250,586, 12/19/1978 (app: 04/15/1976 - serial: 677,284) LOUDSPEAKER (class: D14/216 - international: D1401/) Nussdorfer, Dale A. of Anaheim, CA) and Hayes, William L. of Anaheim, CA (assignee: Altec Corporation of Anaheim, CA) [PtTxt5KB] [DjVu*39KB]

Nyman, Alexander

c1928 - Engineer, Westinghouse Electric - Pittsburgh, PA

*U.S. Patent No. 1,693,401 , 11/27/1928 Telephone Circuits and apparatus Nyman, Alexander and Conrad, Frank (assignee Westinghouse Electric and Manufacturing Company) [abstract] [DjVu77KB]

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