Patents by Inventor David J. Johnson
David J. 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).
-
Patent number: 12115326Abstract: Devices used to pressurize, depressurize, or otherwise displace fluid are disclosed. The devices may be configured to displace fluid in order to inflate or deflate a medical device, such as a balloon. The devices include a trigger configured to convert the devices from a pressurization state to a priming state. The devices further include a locking or toggle member configured to toggle and/or maintain the devices in a priming state.Type: GrantFiled: March 10, 2021Date of Patent: October 15, 2024Assignee: Merit Medical Systems, Inc.Inventors: Christopher Cindrich, Richard P. Jenkins, Michael Dean Haslam, Craig Purdy, Gregory R. McArthur, Nate Shirley, David J. Johnson, Eron Flory, Jon Davis
-
Patent number: 11172970Abstract: Devices used to pressurize, depressurize, or otherwise displace fluid are disclosed. The devices may be configured as a syringe. The syringe may be configured to generate high-pressure within the syringe to inflate or deflate a medical device, such as a balloon, or to inject a substance, such as bone cement, into a bone, such as a vertebra. The syringe may include a pressure reduction mechanism used to depressurize the syringe.Type: GrantFiled: January 16, 2020Date of Patent: November 16, 2021Assignee: DFine, Inc.Inventors: Craig Purdy, Eron Flory, David J. Johnson, Nate Shirley
-
Publication number: 20210283382Abstract: Devices used to pressurize, depressurize, or otherwise displace fluid are disclosed. The devices may be configured to displace fluid in order to inflate or deflate a medical device, such as a balloon. The devices include a trigger configured to convert the devices from a pressurization state to a priming state. The devices further include a locking or toggle member configured to toggle and/or maintain the devices in a priming state.Type: ApplicationFiled: March 10, 2021Publication date: September 16, 2021Inventors: Christopher Cindrich, Richard P. Jenkins, Michael Dean Haslam, Craig Purdy, Gregory R. McArthur, Nate Shirley, David J. Johnson, Eron Flory, Jon Davis
-
Publication number: 20200229855Abstract: Devices used to pressurize, depressurize, or otherwise displace fluid are disclosed. The devices may be configured as a syringe. The syringe may be configured to generate high-pressure within the syringe to inflate or deflate a medical device, such as a balloon, or to inject a substance, such as bone cement, into a bone, such as a vertebra. The syringe may include a pressure reduction mechanism used to depressurize the syringe.Type: ApplicationFiled: January 16, 2020Publication date: July 23, 2020Inventors: Craig Purdy, Eron Flory, David J. Johnson, Nate Shirley
-
Publication number: 20120012731Abstract: An engine exhaust component suspension system comprising one or more engine exhaust component suspension devices is provided for use in supporting replacement or additional exhaust system components and peripherals+installed in an engine exhaust system. The engine exhaust component suspension device is configured to be capable of being fastenerlessly secured to a vehicle frame, allowing mounting of exhaust system components without the need for modification of the vehicle frame. The engine exhaust component suspension system also allows for mounting of exhaust system components that cannot be mounted on a vehicle's original equipment mounts. A method for installing an engine exhaust component suspension system comprising one or more engine exhaust component suspension devices is also provided.Type: ApplicationFiled: July 16, 2010Publication date: January 19, 2012Applicant: ESW INC.Inventor: David J. JOHNSON
-
Patent number: 7372436Abstract: The present invention introduces a novel design for active matrix displays, utilizing both organic light-emitting diode (OLED) and thin-film electroluminescent technologies. In a first aspect there is provided a top-emitting OLED, including an optical interference contrast-enhancing stack that is placed on the top of the driving thin-film transistor, and which extendes to the entire pixel area to cover the reflecting parts of the pixel. In a second aspect, there is provided a bottom-emitting OIED wherein an optical interference contrast-enhancing stack is placed right under the driving thin-film transistor and, separately between the organic stack and the top electrode, typically a cathode. The optical interference contrast-enhancing stack suppresses light reflection from the thin-film transistor and the upper electrode.Type: GrantFiled: June 11, 2003Date of Patent: May 13, 2008Assignee: Luxell Technologies, Inc.Inventors: Alexey N. Krasnov, Richard P. Wood, David J. Johnson, Peter G. Hofstra
-
Patent number: 7008877Abstract: The present invention provides a method and an apparatus for etching a photolithographic substrate. The photolithographic substrate is placed on a support member in a vacuum chamber. A processing gas for etching a material from the photolithographic substrate is introduced into the vacuum chamber, and a plasma is generated. An RF bias is supplied to the support member in the vacuum chamber through an RF bias frequency generator at or below the ion transit frequency. Exposed material is etched from the photolithographic substrate with improved CD Etch Linearity and CD Etch Bias since the low frequency bias allows the developed charge on the photolithographic substrate, generated by the plasma, to dissipate.Type: GrantFiled: May 3, 2004Date of Patent: March 7, 2006Assignee: Unaxis USA Inc.Inventors: Christopher Constantine, Jason Plumhoff, Russell Westerman, David J. Johnson
-
Publication number: 20040259367Abstract: The present invention provides a method and an apparatus for etching a photolithographic substrate. The photolithographic substrate is placed on a support member in a vacuum chamber. A processing gas for etching a material from the photolithographic substrate is introduced into the vacuum chamber, and a plasma is generated. An RF bias is supplied to the support member in the vacuum chamber through an RF bias frequency generator at or below the ion transit frequency. Exposed material is etched from the photolithographic substrate with improved CD Etch Linearity and CD Etch Bias since the low frequency bias allows the developed charge on the photolithographic substrate, generated by the plasma, to dissipate.Type: ApplicationFiled: May 3, 2004Publication date: December 23, 2004Inventors: Christopher Constantine, Jason Plumhoff, Russell Westerman, David J. Johnson
-
Publication number: 20030214230Abstract: The present invention provides an electroluminescent device having a dark layer for reducing at least a portion of ambient light incident on the display. In one bottom emitting device embodiment, the dark layer is placed between the emitting layer and a reflective rear cathode. The dark layer comprises a partially reflective layer, an absorptive-transmissive layer, and a reflective layer.Type: ApplicationFiled: March 10, 2003Publication date: November 20, 2003Inventors: Richard P. Wood, Peter G. Hofstra, David J. Johnson, Alexey N. Krasnov
-
Patent number: 6617997Abstract: An aircraft system and method for determining when to attempt acquisition of an intruder for active tracking. A link reliability score associated with the intruder is adjusted based upon the signal strength of transmissions, the frequency of the transmissions, and the number of previous attempts to acquire the intruder for active tracking.Type: GrantFiled: January 3, 2002Date of Patent: September 9, 2003Assignee: Aviation Communication & Surveillance Systems, LLCInventors: Kathryn W. Ybarra, David J. Johnson
-
Publication number: 20030128151Abstract: An aircraft system and method for determining when to attempt acquisition of an intruder for active tracking. A link reliability score associated with the intruder is adjusted based upon the signal strength of transmissions, the frequency of the transmissions, and the number of previous attempts to acquire the intruder for active tracking.Type: ApplicationFiled: January 3, 2002Publication date: July 10, 2003Applicant: Aviation Communication @$amp; Surveillance Systems LLCInventors: Kathryn W. Ybarra , David J. Johnson
-
Publication number: 20030089680Abstract: Disclosed is a method and apparatus for the etching of a thin film upon a photomask. The etching is carried out in a reactor via an inductively coupled pulsed plasma. Pulsing of the plasma is achieved by regulating the time period (or duty cycle) in which the plasma is generated. It has been found that by decreasing the duty cycle, high etch selectively can be achieved and feature sizes can be faithfully maintained.Type: ApplicationFiled: October 22, 2002Publication date: May 15, 2003Inventors: David J. Johnson, Shinzo Onishi, Christopher Constantine
-
Publication number: 20030077910Abstract: Disclosed is a system for etching thin damage sensitive layers with a plasma. The invention finds particular application for etching damage sensitive thin films such as Gallium Arsenide on Aluminum Gallium Arsenide. Damage to sensitive thin films is avoided by lowering the DC bias of the cathode. The low DC bias is achieved by increasing the frequency of the power source producing the plasma. A reduced etch rate, suitable for etching thin layers, is achieved by pulsing the RF power source between a high power and a low power at a selected duty cycle.Type: ApplicationFiled: October 22, 2002Publication date: April 24, 2003Inventors: Russell Westerman, David J. Johnson
-
Patent number: 6071822Abstract: A method of anisotropically plasma etching a silicon on insulator substrate wherein undercutting is substantially eliminated by utilizing as a finishing etch step a reactive ion etching process wherein the ion density is reduced in order to limit ion charging through different size recesses in order to uniformly etch in a vertical direction.Type: GrantFiled: July 31, 1998Date of Patent: June 6, 2000Assignee: Plasma-Therm, Inc.Inventors: John F. Donohue, David J. Johnson, Michael W. Devre
-
Patent number: 5860097Abstract: An associative cache memory for a computer with improved cache hit times. All possible data items are presented to bus driver circuits, thereby deferring data selection as long as possible. Driving and multiplexing are combined. The output of tag comparison directly selects at most one set of driver circuits. As a result, the only processing time in series with tag comparison is driver circuit selection. Since the data selection delay in series with tag comparison delay is reduced, the time delay is reduced for a clock edge for data driving after tag comparison, thereby enabling a faster clock.Type: GrantFiled: September 23, 1996Date of Patent: January 12, 1999Assignee: Hewlett-Packard CompanyInventors: David J. Johnson, Stephen R. Undy
-
Patent number: 5790626Abstract: A unified bi-directional LFSR is fabricated from latches having dual (Forward and Reverse) inputs. Each such latch accepts its inputs upon receipt of a clock signal that is respectively associated with the forward or reverse direction. The appropriate collection of XOR gates exists between latch outputs and the inputs associated with a forward clock signal, so as to produce the forward sequence. Likewise, another appropriate collection of XOR gates exists between the latch outputs and the inputs associated with the reverse clock signal. To produce a "reverse" LFSR corresponding to the polynomial that is the reciprocal of the polynomial for the "forward" LFSR, the latches of the reciprocal (reverse direction) LFSR are construed as being numbered in the opposite order. That is, a single set of latches (register) has both a forward linear feedback network and a reverse linear feedback network.Type: GrantFiled: September 10, 1996Date of Patent: August 4, 1998Assignee: Hewlett-Packard CompanyInventors: David J. Johnson, Daniel J. Dixon
-
Patent number: 5547133Abstract: A ground oat-based cereal provides a nutritional, hot meal with improved flavor, textural taste, and keeping qualities. That is, the ground oat cereal maintains its consistency and heat over a longer period of time than conventional oatmeal. The oat-based cereal includes ground and sifted oat granules of which 27%-33% by weight have sizes greater than generally about 0.08 inches, and 67%-73% by weight have sizes ranging between generally about 0.04 inches and generally about 0.08 inches. Whole oat groats are roll cut and sifted to produce the oat-based cereal. The density of the oat portion of the cereal ranges between 28-34 lbs/cu. ft.Type: GrantFiled: December 23, 1993Date of Patent: August 20, 1996Inventors: Lynn Rogers, Robert D. Maneval, Daryl W. Bashor, David J. Johnson
-
Patent number: 5368077Abstract: A planer is improved by recognizing the source of instability of a board relative to a guidebar. An angled relationship between feed roller force the guidebar and holds the board against the guidebar. Traditional cutting heads urging the board in the opposite direction relative to that of the feed rollers, develop lateral force vectors kicking the board away from the guidebar. By establishing a zero lead relationship between the cutter heads and the board as it rests against the guidebar, the board enjoys greater stability. The disclosed apparatus further includes an air regulated top pressure plate establishing a given separation between itself and a cutter head, but accommodating abnormal operating conditions, i.e., jammed boards, by vertical movement relative to the cutter head facilitates remote actuation to quickly relieve a jammed condition. Also shown, a bearing housing for a cutter head support shaft is carried on an articulated hinge to improve manual mounting of the bearing housing upon the shaft.Type: GrantFiled: September 22, 1993Date of Patent: November 29, 1994Assignee: U.S. Natural Resources, Inc.Inventors: Charles L. Croghan, David J. Johnson
-
Patent number: 5211565Abstract: The invention comprises a plurality of stacked planar processing circuit boards surrounded on at least one side by a plurality of memory boards located substantially perpendicular to the planar processing boards, the processing and memory boards connected by orthogonal interconnect modules. The orthogonal interconnect modules allow closely-spaced orthogonal connection of the processing boards to the memory boards. The memory boards are of a densely packed design having a plurality of removeable memory chip stacks located on the memory boards.Type: GrantFiled: March 19, 1992Date of Patent: May 18, 1993Assignee: Cray Research, Inc.Inventors: Nicholas J. Krajewski, Carl D. Breske, David J. Johnson, David R. Kiefer, Kent T. McDaniel, William T. Moore, Jr., Michael R. Edwards, Bricky A. Stephenson, Anthony A. Vacca
-
Patent number: 5204130Abstract: A reclosable container for sliced food products having a one-piece container body and integral hinge and lid. The front wall of the container body is provided with a forward protrusion to facilitate removal of a desired number of slices. A locking mechanism enables the lid to be locked in closed position, and provides an audible indication when the lid is locked. The container is reusable and may be made from a polymeric material having sufficient transparency to enable the consumer to count slices viewed through the front wall as they are being removed.Type: GrantFiled: July 11, 1991Date of Patent: April 20, 1993Assignee: Kraft General Foods, Inc.Inventors: John F. McDevitt, David J. Johnson, Denis H. Nelson