Patents by Inventor Robert A. Youngman
Robert A. Youngman 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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Publication number: 20080186691Abstract: The main new features of the disclosure relate to the ability to add stiffness to a shield portion of an active implantable medical device (AIMD) without increasing the net displaced volume to the AIMD in application. A number of techniques for adding stiffness are disclosed, depicted and claimed herein; for example using a sheet or strip(s) of material. A sheet of material can be bonded to a portion of an AIMD housing where an internal component makes contact with and/or is otherwise supported by the housing. The sheet and/or rib can be adhered or welded, soldered, brazed, etc. The sheet or rib can couple to the interior and/or exterior of the housing. Also, preproduction preparation of bulk material used to fabricate the shields can include region(s) of increased cross section (thickness). Such bulk material can have regions of increased cross section (thickness) that correspond to production equipment for punching, shaping and/or trimming the bulk material into the desired AIMD housing.Type: ApplicationFiled: April 28, 2006Publication date: August 7, 2008Inventors: John C. Mertz, Robert A. Youngman, Terry L. Sterrett
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Publication number: 20020058581Abstract: An aluminosilicate ceramic, spherical pellet made from spent ceramic catalyst. More specifically, a spherical ceramic pellet made from spent fluid cracking catalyst. The pellets can be made by grinding the catalyst particles, forming them into spherical pellets, and then sintering the pellets. The final product is useful as a proppant in oil and gas well fracturing.Type: ApplicationFiled: September 18, 2001Publication date: May 16, 2002Applicant: Fairmount Minerals, LtdInventors: Robert Youngman, Patrick R. Okell, Syed Akbar
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Patent number: 6372678Abstract: An aluminosilicate ceramic, spherical pellet made from spent ceramic catalyst. More specifically, a spherical ceramic pellet made from spent fluid cracking catalyst. The pellets can be made by grinding the catalyst particles, forming them into spherical pellets, and then sintering the pellets. The final product is useful as a proppant in oil and gas well fracturing.Type: GrantFiled: September 18, 2001Date of Patent: April 16, 2002Assignee: Fairmount Minerals, LTDInventors: Robert Youngman, Patrick R. Okell, Syed Akbar
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Patent number: 6017485Abstract: A controlled dielectric loss, sintered aluminum nitride body having a density of greater than about 95% theoretical, a thermal conductivity of greater than about 100 W/m-K, and a dissipation factor measured at room temperature at about 1 KHz selected from:(a) less than or equal to about 0.001; and(b) greater than or equal to about 0.01.A process for producing a controlled dielectric loss, sintered aluminum nitride body, comprising heat treating an aluminum nitride body at sintering temperatures, including providing a heat treatment atmosphere which effects a selected nitrogen vacancy population in the aluminum nitride body at the sintering temperatures, and cooling the aluminum nitride body from sintering temperatures at a controlled rate and in a cooling atmosphere effective to control the selected nitrogen vacancy population.Type: GrantFiled: March 28, 1996Date of Patent: January 25, 2000Assignee: Carborundum CorporationInventors: Rudolph C. Enck, Jonathan H. Harris, Robert A. Youngman, Thomas S. Nemecek
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Patent number: 5888446Abstract: Disclosed is a method of forming an aluminum nitride article. The method includes the steps of adding platinum to a composition including a binder, aluminum nitride particles and a sintering aid; forming the composition into an article; placing the article in a substantially non-carbonaceous container; and sintering the article in a reducing atmosphere to cause removal of the binder and densification of the aluminum nitride article, wherein the platinum catalyzes the removal of the binder.Type: GrantFiled: January 15, 1998Date of Patent: March 30, 1999Assignees: International Business Machines Corporation, Crystalline Materials CorporationInventors: Jon A. Casey, Jonathan H. Harris, Lester Wynn Herron, Irvin Huseby, Richard A. Shelleman, Subhash L. Shinde, Robert A. Youngman
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Patent number: 5773377Abstract: An aluminum nitride ceramic having enhanced properties suitable for electronic packaging applications can be prepared from a synergistic aluminum nitride powder/sintering aid mixture, in which the sintering aid is formulated to provide a resultant desirable second phase within the sintered body. The aluminum nitride powder/sintering aid mixture can be formed into green sheet-metal laminates and sintered at low temperature to yield high density, high electrical resistivity, and high thermal conductivity metal ceramic sintered bodies with low camber.Type: GrantFiled: June 12, 1995Date of Patent: June 30, 1998Assignees: Crystalline Materials Corporation, International Business Machines CorporationInventors: Jonathan H. Harris, Robert A. Youngman, Subhash L. Shinde, Lester W. Herron, Benjamin V. Fasano
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Patent number: 5763093Abstract: Disclosed is an aluminum nitride body having graded metallurgy and a method for making such a body. The aluminum nitride body has at least one via and includes a first layer in direct contact with the aluminum nitride body and a second layer in direct contact with, and that completely encapsulates, the first layer. The first layer includes 30 to 60 volume percent aluminum nitride and 40 to 70 volume percent tungsten and/or molybdenum while the second layer includes 90 to 100 volume percent of tungsten and/or molybdenum and 0 to 10 volume percent of aluminum nitride.Type: GrantFiled: June 3, 1996Date of Patent: June 9, 1998Assignees: International Business Machines Corporation, The Carborundum CompanyInventors: Jon Alfred Casey, Carla Natalia Cordero, Benjamin Vito Fasano, David Brian Goland, Robert Hannon, Jonathan H. Harris, Lester Wynn Herron, Gregory Marvin Johnson, Niranjan Mohanlal Patel, Andrew Michael Reitter, Subhash Laxman Shinde, Rao Venkateswara Vallabhaneni, Robert A. Youngman
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Patent number: 5682589Abstract: Disclosed is an aluminum nitride body having graded metallurgy and a method for making such a body. The aluminum nitride body has at least one via and includes a first layer in direct contact with the aluminum nitride body and a second layer in direct contact with, and that completely encapsulates, the first layer. The first layer includes 30 to 60 volume percent aluminum nitride and 40 to 70 volume percent tungsten and/or molybdenum while the second layer includes 90 to 100 volume percent of tungsten and/or molybdenum and 0 to 10 volume percent of aluminum nitride.Type: GrantFiled: June 3, 1996Date of Patent: October 28, 1997Assignee: International Business Machines CorporationInventors: Jon Alfred Casey, Carla Natalia Cordero, Benjamin Vito Fasano, David Brian Goland, Robert Hannon, Jonathan H. Harris, Lester Wynn Herron, Gregory Marvin Johnson, Niranjan Mohanlal Patel, Andrew Michael Reitter, Subhash Laxman Shinde, Rao Venkateswara Vallabhaneni, Robert A. Youngman
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Patent number: 5552232Abstract: Disclosed is an aluminum nitride body having graded metallurgy and a method for making such a body. The aluminum nitride body has at least one via and includes a first layer in direct contact with the aluminum nitride body and a second layer in direct contact with, and that completely encapsulates, the first layer. The first layer includes 30 to 60 volume percent aluminum nitride and 40 to 70 volume percent tungsten and/or molybdenum while the second layer includes 90 to 100 volume percent of tungsten and/or molybdenum and 0 to 10 volume percent of aluminum nitride.Type: GrantFiled: December 21, 1994Date of Patent: September 3, 1996Assignees: International Business Machines Corporation, The Carborundum CompanyInventors: Jon A. Casey, Carla N. Cordero, Benjamin V. Fasano, David B. Goland, Robert Hannon, Jonathan H. Harris, Lester W. Herron, Gregory M. Johnson, Niranjan M. Patel, Andrew M. Reitter, Subhash L. Shinde, Rao V. Vallabhaneni, Robert A. Youngman
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Patent number: 5552107Abstract: Disclosed is an aluminum nitride body having graded metallurgy and a method for making such a body. The aluminum nitride body has at least one via and includes a first layer in direct contact with the aluminum nitride body and a second layer in direct contact with, and that completely encapsulates, the first layer. The first layer includes 30 to 60 volume percent aluminum nitride and 40 to 70 volume percent tungsten and/or molybdenum while the second layer includes 90 to 100 volume percent of tungsten and/or molybdenum and 0 to 10 volume percent of aluminum nitride.Type: GrantFiled: May 9, 1995Date of Patent: September 3, 1996Inventors: Jon A. Casey, Carla N. Cordero, Benjamin V. Fasano, David B. Goland, Robert Hannon, Jonathan H. Harris, Lester W. Herron, Gregory M. Johnson, Niranjan M. Patel, Andrew M. Reitter, Subhash L. Shinde, Rao V. Vallabhaneni, Robert A. Youngman
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Patent number: 5541145Abstract: An aluminum nitride ceramic having desired properties suitable for electronic packaging applications can be prepared from a novel aluminum nitride powder/sintering aid mixture. The sintering aid comprises a glassy component formed from alumina, calcia and boria, and a non-vitreous component comprising an element or compound of a metal of Group IIa, IIIa, or the lanthanides, preferably crystalline oxides, reactibis with the crystallized glass component and the alumina from the Al N grains. Alternatively, the sintering aid comprises a multi-component glass composition capable of forming the above components upon melting and thereafter crystallizing upon reaction.Type: GrantFiled: June 12, 1995Date of Patent: July 30, 1996Assignee: The Carborundum Company/IBM CorporationInventors: Jonathan H. Harris, Subhash L. Shinde, Takeshi Takamori, Robert A. Youngman, Lester W. Herron, Benjamin V. Fasano
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Patent number: 5424261Abstract: An aluminum nitride ceramic having desired properties suitable for electronic packaging applications can be prepared from a novel aluminum nitride powder/sintering aid mixture. The sintering aid comprises a glassy component formed from alumina, calcia and boria, and a non-vitreous component comprising an element or compound of a metal of Group IIa, IIIa, or the lanthanides, preferably crystalline oxides, reactible with the crystallized glass component and the alumina from the AlN grains. Alternatively, the sintering aid comprises a multi-component glass composition capable of forming the above components upon melting and thereafter crystallizing upon reaction.Type: GrantFiled: December 22, 1993Date of Patent: June 13, 1995Assignees: The Carborundum Company, IBM CorporationInventors: Jonathan H. Harris, Subhash L. Shinde, Takeshi Takamori, Robert A. Youngman