Patents by Inventor Gregory H. Johnson
Gregory H. Johnson 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: 20240081802Abstract: Various methods and devices are provided for allowing multiple surgical instruments to be inserted into sealing elements of a single surgical access device. The sealing elements can be movable along predefined pathways within the device to allow surgical instruments inserted through the sealing elements to be moved laterally, rotationally, angularly, and vertically relative to a central longitudinal axis of the device for ease of manipulation within a patient's body while maintaining insufflation.Type: ApplicationFiled: November 16, 2023Publication date: March 14, 2024Inventors: Mark S. Ortiz, David T. Martin, Matthew C. Miller, Mark J. Reese, Wells D. Haberstich, Carl Shurtleff, Charles J. Scheib, Frederick E. Shelton, IV, Jerome R. Morgan, Daniel H. Duke, Daniel J. Mumaw, Gregory W. Johnson, Kevin L. Houser
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Publication number: 20240082472Abstract: A blood treatment system with pressure sensors may be configured to control blood flow to and from the patient and use readings of the pressure sensors to determine a change in a pressure drop across a flow restriction in the blood circuit to estimate a condition of the machine or the patient, or outputting data responsive to the estimation. Further embodiments employ measurement of pressure drop to detect abnormal viscosity or viscosity variations in order to detect possible infection.Type: ApplicationFiled: November 22, 2023Publication date: March 14, 2024Applicant: NxStage Medical, Inc.Inventors: Mark T. WYETH, Robert Paul MCCARTY, Gregory YANTZ, James Ian JOHNSON, Joseph E. TURK, JR., James M. BRUGGER, Jeffrey H. BURBANK
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Patent number: 7733639Abstract: A portable memory housing includes a first housing section and a second housing section that couples to the first housing section to define an enclosure for portable memory components. At least one of the housing sections includes a prong extending from an edge of the housing section and an other of the housing sections defines a slot configured to receive the prong. The prong includes at least one flat that is parallel and at least one flat that is perpendicular to the edge of its respective housing section. The slot is defined by a parallel wall configured to abut the parallel flat of the prong and limit relative lateral movement of the first and second housing sections, and a perpendicular wall configured to abut the perpendicular flat of the prong to impede separation of the first housing section from the second housing section.Type: GrantFiled: January 31, 2008Date of Patent: June 8, 2010Assignee: Imation Corp.Inventors: G. Phillip Rambosek, Gregory H. Johnson
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Publication number: 20090195974Abstract: A portable memory housing includes a first housing section and a second housing section that couples to the first housing section to define an enclosure for portable memory components. At least one of the housing sections includes a prong extending from an edge of the housing section and an other of the housing sections defines a slot configured to receive the prong. The prong includes at least one flat that is parallel and at least one flat that is perpendicular to the edge of its respective housing section. The slot is defined by a parallel wall configured to abut the parallel flat of the prong and limit relative lateral movement of the first and second housing sections, and a perpendicular wall configured to abut the perpendicular flat of the prong to impede separation of the first housing section from the second housing section.Type: ApplicationFiled: January 31, 2008Publication date: August 6, 2009Inventors: G. Phillip Rambosek, Gregory H. Johnson
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Patent number: 7548418Abstract: A data storage cartridge includes housing, a hard drive, and a connection assembly. The hard drive is stored within the housing and includes a non-tape storage medium and an electrical data connector configured to provide access to the non-tape storage medium. The electrical data connector includes a first number of connection terminals. The connection assembly is positioned within the housing and is coupled with each of the connection terminals of the electrical data connector. The connection assembly includes a second number of electrical targets spaced from and in electrical communication with the electrical data connector wherein the first number is greater than the second number. The electrical targets provide an interface for externally accessing the storage medium via the connection assembly and the electrical data connector.Type: GrantFiled: August 9, 2006Date of Patent: June 16, 2009Assignee: Imation Corp.Inventors: Robert C. Martin, Gregory H. Johnson, G. Phillip Rambosek, Leo W. Spychalla
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Patent number: 7481659Abstract: The invention is directed to a memory card including a first connector that conforms to a first connection standard and a second connector that conforms to a second connection standard. The connectors are provided on a movable member disposed within a housing of the memory card. The movable member may be moved between a first position, in which the first connector is exposed, and a second position, in which the second connector is exposed.Type: GrantFiled: January 5, 2007Date of Patent: January 27, 2009Assignee: Imation Corp.Inventors: Gregory H. Johnson, Daniel C. Egan
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Publication number: 20080166920Abstract: The invention is directed to a memory card including a first connector that conforms to a first connection standard and a second connector that conforms to a second connection standard. The connectors are provided on a movable member disposed within a housing of the memory card. The movable member may be moved between a first position, in which the first connector is exposed, and a second position, in which the second connector is exposed.Type: ApplicationFiled: January 5, 2007Publication date: July 10, 2008Applicant: Imation Corp.Inventors: Gregory H. Johnson, Daniel C. Egan
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Publication number: 20080037211Abstract: A data storage cartridge includes housing, a hard drive, and a connection assembly. The hard drive is stored within the housing and includes a non-tape storage medium and an electrical data connector configured to provide access to the non-tape storage medium. The electrical data connector includes a first number of connection terminals. The connection assembly is positioned within the housing and is coupled with each of the connection terminals of the electrical data connector. The connection assembly includes a second number of electrical targets spaced from and in electrical communication with the electrical data connector wherein the first number is greater than the second number. The electrical targets provide an interface for externally accessing the storage medium via the connection assembly and the electrical data connector.Type: ApplicationFiled: August 9, 2006Publication date: February 14, 2008Inventors: Robert C. Martin, Gregory H. Johnson, G. Phillip Rambosek, Leo W. Spychalla
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Patent number: 7300016Abstract: A tape reel assembly for a tape drive system component, such as a data storage tape cartridge, is described that includes a hub. The hub defines an inner surface and a tape winding surface, and at least a portion of the hub is made of plastic. The tape winding surface has an effective radial modulus of greater than 0.3 million pounds-per-square-inch.Type: GrantFiled: October 8, 2003Date of Patent: November 27, 2007Assignee: Imation Corp.Inventors: Jerome D. Brown, Dean E. Sitz, Gregory H. Johnson, Trevor J. Stav, James L. Albrecht, Carter J. Hansen, Geoffrey A. Lauinger, Michael E. Reard, Christopher J. Zwettler
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Patent number: 6703900Abstract: A differential amplifier includes an input stage (13) and an output stage (100) including an output transistor (M11) having a source coupled to a supply voltage (VDD), a gate coupled to a terminal (14) of the input stage, and a drain coupled to an output conductor (22). A recovery circuit (1A) is coupled between the supply voltage and the gate of the output transistor for limiting the voltage on the gate of the output transistor in response to the output voltage be within a predetermined range of the supply voltage and includes a recovery transistor (M4) with a source coupled to the output conductor and a drain coupled to the gate of the output transistor and a common-gate amplifier (29A) having a built-in offset a first input coupled to the output conductor, a second input coupled to the supply voltage, and an output coupled to the gate of the recovery transistor.Type: GrantFiled: June 5, 2002Date of Patent: March 9, 2004Assignee: Texas Instruments IncorporatedInventors: Vadim V. Ivanov, Shilong Zhang, Gregory H. Johnson
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Publication number: 20030227328Abstract: A differential amplifier includes an input stage (13) and an output stage (100) including an output transistor (M11) having a source coupled to a supply voltage (VDD), a gate coupled to a terminal (14) of the input stage, and a drain coupled to an output conductor (22). A recovery circuit (1A) is coupled between the supply voltage and the gate of the output transistor for limiting the voltage on the gate of the output transistor in response to the output voltage be within a predetermined range of the supply voltage and includes a recovery transistor (M4) with a source coupled to the output conductor and a drain coupled to the gate of the output transistor and a common-gate amplifier (29A) having a built-in offset a first input coupled to the output conductor, a second input coupled to the supply voltage, and an output coupled to the gate of the recovery transistor.Type: ApplicationFiled: June 5, 2002Publication date: December 11, 2003Applicant: TEXAS INSTRUMENTS INCORPORATEDInventors: Vadim V. Ivanov, Shilong Zhang, Gregory H. Johnson
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Patent number: 6545538Abstract: A rail-to-rail class AB output stage includes a P-channel pull-up transistor (4) having a source coupled to a first supply rail voltage (V+), a gate coupled to a first input conductor (2) of the output stage, and a drain coupled to an output terminal (6) of the output stage. An N-channel pull-down transistor (5) includes a source coupled to a second supply rail voltage (GROUND), a gate coupled to a second input conductor (3) of the output stage, and a drain coupled to the output terminal (6). A P-channel first bias transistor (20) includes a source coupled to the first input conductor (2) and a drain coupled to the second input terminal (3). A first bias circuit coupled between the first and second supply rail voltages produces a first bias voltage (21) on a gate of the first bias transistor (20). A P-channel second bias transistor (10) includes a source coupled to be first input conductor (2).Type: GrantFiled: October 3, 2000Date of Patent: April 8, 2003Assignee: Texas Instruments IncorporatedInventors: Vadim V. Ivanov, Gregory H. Johnson, Stephen J. Sanchez
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Patent number: 6386471Abstract: System for releasably retaining portions of a data cartridge shell in an assembled configuration including at least one first boss tower on a first portion of the data cartridge shell having a receiving hole with an inner surface. At least one second boss tower on a second portion of the data cartridge shell including an outer surface is adapted to releasably engage with the receiving hole at a boss tower interface in the assembled configuration. A plurality of retention ribs and a plurality of guide ribs are located at the boss tower interface to releasably retain the first portion of the cartridge shell to the second portion.Type: GrantFiled: November 20, 2000Date of Patent: May 14, 2002Assignee: Imation Corp.Inventors: Joseph P. Keller, Gregg C. Hagen, Gregory D. Roberts, Gregory H. Johnson, Michael W. Johnson, Bryan W. Noble
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Patent number: 6359512Abstract: An operational amplifier includes a differential input stage (30) having first (2) and second (3) input conductors, a class AB output stage (20) coupled to an output of the differential input stage (30) and including a pull-up transistor (M11) having a source coupled to a first supply voltage (VDD), a drain coupled to an output conductor (17), and a gate coupled to a first terminal (14) of a class AB control circuit (11), and a pull-down transistor (M12) having a source coupled to a second supply voltage (GND), a drain coupled to the output conductor (17), and a gate coupled to a second terminal (15) of the class AB control circuit (11). A differential input signal is applied between the first (2) and second (3) input conductors, and simultaneously also is applied between first and second inputs of a first unbalanced differential amplifier (31) and between first and second input to the second unbalanced differential amplifier (32).Type: GrantFiled: January 18, 2001Date of Patent: March 19, 2002Assignee: Texas Instruments IncorporatedInventors: Vadim V. Ivanov, Shilong Zhang, Gregory H. Johnson
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Patent number: 6356153Abstract: A rail-to-rail differential amplifier includes first and second input terminals, and an output terminal and an input stage including differentially connected N-channel first and second input transistors, and differentially connected P-channel third and fourth input transistors. A P-channel first cascode transistor has a source coupled to a first supply voltage to the drain of the first input transistor. An N-channel cascode transistor has a source coupled by a second resistive element to a second supply voltage and to the drain of the third input transistor. A first gain boost amplifier has an output coupled to a gate of the first cascode transistor, a first input coupled to the source of the first cascode transistor and the drain of the first input transistor, and a second input coupled to a drain of the second input transistor and a bias control circuit.Type: GrantFiled: November 20, 2000Date of Patent: March 12, 2002Assignee: Texas Instruments IncorporatedInventors: Vadim V. Ivanov, Gregory H. Johnson
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Patent number: 6317000Abstract: An operational amplifier includes an input stage (13) receiving an input signal (Vin) and having first (14) and second (16) output terminals, and also includes an output stage (10) having a pull-up transistor (M11) and a pull-down transistor (M2). The pull-up transistor has a source coupled to a first supply voltage (VDD), a gate coupled to the first output terminal (14), and a drain coupled to an output conductor (22) conducting an output signal (Vout). The pull-down transistor (M2) has a source coupled to a second supply voltage (VSS), a gate coupled to the second output terminal (16), and a drain coupled to the output conductor (22). An AB control circuit (20) is coupled between the gates of the pull-up transistor and a pull-down transistor.Type: GrantFiled: January 18, 2001Date of Patent: November 13, 2001Assignee: Texas Instruments IncorporatedInventors: Vadim V. Ivanov, Shilong Zhang, Gregory H. Johnson
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Patent number: D381018Type: GrantFiled: April 5, 1994Date of Patent: July 15, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: John A. Bailey, Glenn A. Bloomer, Gregory H. Johnson, Donald J. Staufenberg
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Patent number: D397365Type: GrantFiled: May 7, 1997Date of Patent: August 25, 1998Inventor: Gregory H. Johnson
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Patent number: D397672Type: GrantFiled: April 5, 1994Date of Patent: September 1, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Gregory H. Johnson, Mark J. Ciesko
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Patent number: D412326Type: GrantFiled: July 22, 1998Date of Patent: July 27, 1999Assignee: Imation Corp.Inventors: John T. Gianfagna, Leslie M. Collins, Randolph L. Carlson, Gregory H. Johnson, Steven R. Seeman