Patents by Inventor Zonglu Hua
Zonglu Hua has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8397311Abstract: A metrology probe capable of measurements of a broad range of physical properties of individual samples of nano- or sub-nanometer dimensions is provided. The probe comprises a probe body, a substrate connected to the probe body, and a tip proximate the substrate. The probe further comprises a coarse piezoelectric actuator having an electrical input. The coarse piezo is configured to cause the tip and/or the substrate to move relative to each other when a first electrical signal is provided to the electrical input. The probe further comprises a low-pass filter in electrical communication with the electrical input of the coarse piezo. The probe further comprises a fine piezoelectric actuator having an electrical input configured to cause the tip and/or the substrate to move relative to each other when a second electrical signal is provided to the electrical input.Type: GrantFiled: May 28, 2010Date of Patent: March 12, 2013Assignee: The Research Foundation of State University of New YorkInventors: Harsh Deep Chopra, Jason N. Armstrong, Zonglu Hua
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Patent number: 8372600Abstract: A method and apparatus for measuring changes in cell volume generally includes introducing cells into a chamber having a volume between 2 and 100 times the volume of the introduced cell. A first electrically conductive extracellular fluid is introduced into the chamber and a current is applied. The voltage induced by said current flow is measured. The first fluid is exchanged with a second electrically conductive extracellular fluid and a current is applied. The voltage induced by said current flow is measured. The first induced voltage result and the second induced voltage result are used in conjunction with known voltages induced by such current flows to monitor changes in the volume corresponding to fluid flow between the cell and an extracellular fluid.Type: GrantFiled: February 25, 2009Date of Patent: February 12, 2013Assignee: The Research Foundation of State University of New YorkInventors: Frederick Sachs, Zonglu Hua, Stephen Besch, Harsh Deep Chopra, Philip Gottlieb
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Publication number: 20120110707Abstract: A metrology probe capable of measurements of a broad range of physical properties of individual samples of nano- or sub-nanometer dimensions is provided. The probe comprises a probe body, a substrate connected to the probe body, and a tip proximate the substrate. The probe further comprises a coarse piezoelectric actuator having an electrical input. The coarse piezo is configured to cause the tip and/or the substrate to move relative to each other when a first electrical signal is provided to the electrical input. The probe further comprises a low-pass filter in electrical communication with the electrical input of the coarse piezo. The probe further comprises a fine piezoelectric actuator having an electrical input configured to cause the tip and/or the substrate to move relative to each other when a second electrical signal is provided to the electrical input.Type: ApplicationFiled: May 28, 2010Publication date: May 3, 2012Applicant: The Research Foundation of State University of New YorkInventors: Harsh Deep Chopra, Jason N. Armstrong, Zonglu Hua
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Publication number: 20090233330Abstract: A method and apparatus for measuring changes in cell volume generally includes introducing cells into a chamber having a volume between 2 and 100 times the volume of the introduced cell. A first electrically conductive extracellular fluid is introduced into the chamber and a current is applied. The voltage induced by said current flow is measured. The first fluid is exchanged with a second electrically conductive extracellular fluid and a current is applied. The voltage induced by said current flow is measured. The first induced voltage result and the second induced voltage result are used in conjunction with known voltages induced by such current flows to monitor changes in the volume corresponding to fluid flow between the cell and an extracellular fluid.Type: ApplicationFiled: February 25, 2009Publication date: September 17, 2009Applicant: The Research Foundation of State University of New YorkInventors: Frederick Sachs, Zonglu Hua, Stephen Besch, Harsh Deep Chopra, Philip Gottlieb
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Patent number: 7425826Abstract: The invention includes a conductor with a first side and a second side. The conductor may be sized to have a cross-section diameter substantially similar to a Fermi wavelength of electrons in the conductor, the cross-section diameter being taken substantially perpendicular to a primary direction in which current could flow through the conductor. The conductor size may be selected so that when a magnetic field less than a threshold value is applied to the conductor, the first side of the conductor has a first magnetic state and the second side of the conductor has a second magnetic state. However, when a magnetic field of sufficient strength is applied to the magnetic conductor the first side and the second side will be caused to have the same magnetic state.Type: GrantFiled: February 16, 2006Date of Patent: September 16, 2008Inventors: Harsh Deep Chopra, Zonglu Hua, Matthew R. Sullivan, Jason N. Armstrong
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Publication number: 20060261800Abstract: The invention includes a conductor with a first side and a second side. The conductor may be sized to have a cross-section diameter substantially similar to a Fermi wavelength of electrons in the conductor, the cross-section diameter being taken substantially perpendicular to a primary direction in which current could flow through the conductor. The conductor size may be selected so that when a magnetic field less than a threshold value is applied to the conductor, the first side of the conductor has a first magnetic state and the second side of the conductor has a second magnetic state. However, when a magnetic field of sufficient strength is applied to the magnetic conductor the first side and the second side will be caused to have the same magnetic state.Type: ApplicationFiled: February 16, 2006Publication date: November 23, 2006Inventors: Harsh Chopra, Zonglu Hua, Matthew Sullivan, Jason Armstrong
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Publication number: 20050239046Abstract: A method and apparatus for measuring changes in cell volume generally includes introducing cells into a chamber having a volume between 2 and 100 times the volume of the introduced cell. A first electrically conductive extracellular fluid is introduced into the chamber and a current is applied. The current flow is measured. The first fluid is exchanged with a second electrically conductive extracellular fluid and a current is applied. The current flow is measured. The first current flow result and the second current flow result are used in conjunction with known current flows to monitor changes in the volume corresponding to fluid flow between the cell and an extracellular fluid.Type: ApplicationFiled: March 4, 2005Publication date: October 27, 2005Applicant: The Research Foundation of State University of New YorkInventors: Frederick Sachs, Zonglu Hua, Stephen Besch, Harsh Chopra, Anthony Auerbach, Philip Gottlieb, Daniel Ateya
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Publication number: 20020014181Abstract: A ferromagnetic powder comprising ferromagnetic particles coated with a material that does not degrade at temperatures above 150° C. and permits adjacent particles to strongly bind together after compaction such that parts made from the ferromagnetic powder have a transverse rupture strength of about 8,000 to about 20,000 pounds/square inch before sintering. The coating includes from 2 to 4 parts of an oxide and one part of a chromate, molybdate, oxalate, phosphate, or tungstate. The coating may be substantially free of organic materials. The invention also includes a method of making the ferromagnetic powder, a method of making soft magnetic parts from the ferromagnetic powder, and soft magnetic parts made from the ferromagnetic powder.Type: ApplicationFiled: October 30, 1998Publication date: February 7, 2002Inventors: DAVID S. LASHMORE, GLENN L. BEANE, LEV DERESH, ZONGLU HUA
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Patent number: 6342108Abstract: A ferromagnetic powder comprising ferromagnetic particles coated with a material that does not degrade at temperatures above 150° C and permits adjacent particles to strongly bind together after compaction such that parts made from the ferromagnetic powder have a transverse rupture strength of about 8,000 to about 20,000 pounds/square inch before sintering. The coating includes from 2 to 4 parts of an oxide and one part of a chromate, molybdate, oxalate, phosphate, or tungstate. The coating may be substantially free of organic materials. The invention also includes a method of making the ferromagnetic powder, a method of making soft magnetic parts from the ferromagnetic powder, and soft magnetic parts made from the ferromagnetic powder.Type: GrantFiled: February 9, 1999Date of Patent: January 29, 2002Assignee: Materials Innovation, Inc.Inventors: David S. Lashmore, Glenn L. Beane, Lev Deresh, Zonglu Hua
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Patent number: 6340397Abstract: A ferromagnetic powder comprising ferromagnetic particles coated with a material that does not degrade at temperatures above 150° C. and permits adjacent particles to strongly bind together after compaction such that parts made from the ferromagnetic powder have a transverse rupture strength of about 8,000 to about 20,000 pounds/square inch before sintering, The coating includes from 2 to 4 parts of an oxide and one part of a chromate, molybdate, oxalate, phosphate, or tungstate. The coating may be substantially free of organic materials. The invention also includes a method of making the ferromagnetic powder, a method of making soft magnetic parts from the ferromagnetic powder, and soft magnetic parts made from the ferromagnetic powder.Type: GrantFiled: February 11, 1999Date of Patent: January 22, 2002Assignee: Materials Innovation, Inc.Inventors: David S. Lashmore, Glenn L. Beane, Lev Deresh, Zonglu Hua
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Patent number: 6309748Abstract: A ferromagnetic powder comprising ferromagnetic particles coated with a material that does not degrade at temperatures above 150° C. and permits adjacent particles to strongly bind together after compaction such that parts made from the ferromagnetic powder have a transverse rupture strength of about 8,000 to about 20,000 pounds/square inch before sintering. The coating includes from 2 to 4 parts of an oxide and one part of a chromate, molybdate, oxalate, phosphate, or tungstate. The coating may be substantially free of organic materials. The invention also includes a method of making the ferromagnetic powder, a method of making soft magnetic parts from the ferromagnetic powder, and soft magnetic parts made from the ferromagnetic powder.Type: GrantFiled: August 28, 2000Date of Patent: October 30, 2001Inventors: David S. Lashmore, Glenn L. Beane, Lev Deresh, Zonglu Hua
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Patent number: 6251514Abstract: A ferromagnetic powder comprising ferromagnetic particles coated with a material that does not degrade at temperatures above 150° C. and permits adjacent particles to strongly bind together after compaction such that parts made from the ferromagnetic powder have a transverse rupture strength of about 8,000 to about 20,000 pounds/square inch before sintering. The coating includes from 2 to 4 parts of an oxide and one part of a chromate, molybdate, oxalate, phosphate, or tungstate. The coating may be substantially free of organic materials. The invention also includes a method of making the ferromagnetic powder, a method of making soft magnetic parts from the ferromagnetic powder, and soft magnetic parts made from the ferromagnetic powder.Type: GrantFiled: February 11, 1999Date of Patent: June 26, 2001Assignee: Materials Innovation, Inc.Inventors: David S. Lashmore, Glenn L. Beane, Lev Deresh, Zonglu Hua
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Patent number: 6129790Abstract: A ferromagnetic powder comprising ferromagnetic particles coated with a material that does not degrade at temperatures above 150.degree. C. and permits adjacent particles to strongly bind together after compaction such that parts made from the ferromagnetic powder have a transverse rupture strength of about 8,000 to about 20,000 pounds/square inch before sintering. The coating includes from 2 to 4 parts of an oxide and one part of a chromate, molybdate, oxalate, phosphate, or tungstate. The coating may be substantially free of organic materials. The invention also includes a method of making the ferromagnetic powder, a method of making soft magnetic parts from the ferromagnetic powder, and soft magnetic parts made from the ferromagnetic powder.Type: GrantFiled: February 11, 1999Date of Patent: October 10, 2000Assignee: Materials Innovation, Inc.Inventors: David S. Lashmore, Glenn L. Beane, Lev Deresh, Zonglu Hua
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Patent number: 5982073Abstract: A ferromagnetic powder comprising ferromagnetic particles coated with a material that does not degrade at temperatures above 150.degree. C. and permits adjacent particles to strongly bind together after compaction such that parts made from the ferromagnetic powder have a transverse rupture strength of about 8,000 to about 20,000 pounds/square inch before sintering. The coating includes from 2 to 4 parts of an oxide and one part of a chromate, molybdate, oxalate, phosphate, or tungstate. The coating may be substantially free of organic materials. The invention also includes a method of making the ferromagnetic powder, a method of making soft magnetic parts from the ferromagnetic powder, and soft magnetic parts made from the ferromagnetic powder.Type: GrantFiled: January 21, 1998Date of Patent: November 9, 1999Assignee: Materials Innovation, Inc.Inventors: David S. Lashmore, Glenn L. Beane, Lev Deresh, Zonglu Hua