Abstract: A high current amplifier, three terminal device, comprising a Josephson tunnel junction and a Schottky diode is configured so that the Josephson junction and Schottky diode share a common base electrode which is made very thin. Electrons which cross the Schottky barrier are supplied to the Josephson junction to obtain the amplified output current.
Type:
Grant
Filed:
August 15, 1991
Date of Patent:
April 26, 1994
Assignee:
The United States of America as represented by the Secretary of the Navy
Inventors:
Bruce J. Dalrymple, Arnold H. Silver, Randy W. Simon
Abstract: Magnetic flux concentrating materials are introduced in superconducting moelectronic devices and circuits as a method and means for fabrication of more compact, higher speed superconducting microelectronic devices and circuits.
Type:
Grant
Filed:
February 5, 1992
Date of Patent:
March 22, 1994
Assignee:
The United States of America as represented by the Secretary of the Navy
Abstract: An apparatus for and a method of growing thin films of the elemental semiductors (group IVB), i.e., silicon, germanium, tin, lead, and, especially diamond, using modified atomic layer epitaxial (ALE) growth techniques are disclosed. In addition, stoichiometric and non-stoichiometric compounds of the group IVB elements are also grown by a variation of the method according to the present invention. The ALE growth of diamond thin films is carried-out, inter alia, by exposing a plurality of diamond or like substrates alternately to a halocarbon reactant gas, e.g., carbon tetrafluoride (CF.sub.4), and a hydrocarbon reactant gas, e.g., methane (CH.sub.4), at substrate temperatures between 300 and 650 Celsius. A stepping motor device portion of the apparatus is controlled by a programmable controller portion such that the surfaces of the plurality of substrates are given exposures of at least 10.sup.15 molecules/cm.sup.2 of each of the reactant gases.
Type:
Grant
Filed:
February 4, 1993
Date of Patent:
January 25, 1994
Assignee:
The United States of America as represented by the Secretary of the Navy
Abstract: A method and material for coating metal surfaces which prevents disbonding f the coating and metal surface. A polymer coating material has high molecular weight cations added thereto and can be used to paint steel or other metal surfaces subject to cathodic ionization.
Type:
Grant
Filed:
June 10, 1992
Date of Patent:
November 30, 1993
Assignee:
The United States of America as represented by the Secretary of the Navy
Abstract: A high intake, defined excitation, vertical profiling survey bioluminescence bathyphotometer system designed to measure, from a statistically significant sample with a calibrated hydromechanical stimulus, (1) the bioluminescence of phytoplankton and zooplankton organisms in the oceanic water column to depths of 400 meters in absolute units of photons per second per volume (intensity) or photons per volume (total flux), (2) the concentration of bioluminescent population in flashes per volume, (3) the average light intensity per bioluminescent event, and (4) population flash dynamics.
Type:
Grant
Filed:
July 8, 1992
Date of Patent:
November 23, 1993
Assignee:
The United States of America as represented by the Secretary of the Navy
Inventors:
Kenneth M. Ferer, James F. Case, Edith A. Widder, Steven A. Bernstein, Mark Lowenstine
Abstract: A method and apparatus for retarding the pitting of aluminum by coating the luminum with a film which includes molybdenium oxide.The aluminum material is preexposed to a molybdate solution before anadizing in a sodium tartrate solution.
Type:
Grant
Filed:
November 20, 1990
Date of Patent:
April 27, 1993
Assignee:
The United States of America as represented by the Secretary of the Navy
Inventors:
John S. Ahearn, Jr., Guy D. Davis, William C. Moshier
Abstract: A mixed polymer electrolyte and a solid rechargeable battery which uses a solid mixed polymer electrolyte of poly[bis(methoxyethoxyethoxide)phosphazene].
Type:
Grant
Filed:
March 28, 1991
Date of Patent:
November 24, 1992
Assignee:
The United States of America as represented by the Secretary of the Navy
Inventors:
Kuzhikalail M. Abraham, Mohamed Alamgir
Abstract: A tough mutant strain of the bioluminescent marine dinoflagellate pyrocys lunula which produces almost three times more light than its predecessor Pyrocystis lunula strain, which can withstand much more centrifugal force than its predecessor, and which grows faster than its predecessor in a defined medium under laboratory conditions, doubling about every four days, and requiring only monthly transfers.
Type:
Grant
Filed:
September 3, 1991
Date of Patent:
July 14, 1992
Assignee:
The United States of America as represented by the Secretary of the Navy
Abstract: A process that derives estimates of range and range-rate during the radar ack of an object, when the radar employes a linear frequency modulated waveform. FM waveforms at the radar wavelength are transmitted. The frequency of the radar echos are measured and the difference between the incoming frequency of radar echos and the local oscillator frequency is estimated. The signal is decomposed into Range and Range rate. Implementation of the decomposition device can either be a sequence of stored software or a hardwired processor.
Type:
Grant
Filed:
June 24, 1991
Date of Patent:
December 1, 1992
Assignee:
The United States of America as represented by the Secretary of the Navy