Patents Examined by Michael Piery
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Patent number: 8277713Abstract: An implantable analyte sensor including a sensing region for measuring the analyte and a non-sensing region for immobilizing the sensor body in the host. The sensor is implanted in a precisely dimensioned pocket to stabilize the analyte sensor in vivo and enable measurement of the concentration of the analyte in the host before and after formation of a foreign body capsule around the sensor. The sensor further provides a transmitter for RF transmission through the sensor body, electronic circuitry, and a power source optimized for long-term use in the miniaturized sensor body.Type: GrantFiled: May 3, 2004Date of Patent: October 2, 2012Assignee: DexCom, Inc.Inventors: James R. Petisce, Mark Brister, Mark Shults, James H. Brauker, Paul V. Neale
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Patent number: 8262951Abstract: A method of forming a mold, concludes: winding a tape around peripheral surfaces of a first molding die and a second molding die to assemble a mold; forming on the tape an injection port for injecting a resin material for forming a plastic lens into the mold; and forming a tab by cutting out a part of the tape non-circularly.Type: GrantFiled: January 22, 2007Date of Patent: September 11, 2012Assignee: Seiko Epson CorporationInventor: Hiroshi Shimizu
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Patent number: 8215944Abstract: The present invention provides an imprinting device and an imprinting method which can uniformly apply pressure between a mold and a molding object and which can increase and decrease a temperature at a fast speed. An imprinting device is for transferring a pattern on a mold to a film molding object and comprises a stage for holding the mold, a pressurizing-chamber casing which configures a pressurizing-chamber together with the molding object, sealing means which airtightly seals a space between the pressurizing-chamber casing and the molding object, opening and closing means which opens and closes the space between the pressurizing-chamber casing and the molding object, pressurizing means which adjusts atmospheric pressure in the pressurizing-chamber, heating means which heats either one of or both of the mold and the molding object, and degassing means which eliminates any gas present between the mold and the molding object.Type: GrantFiled: December 25, 2008Date of Patent: July 10, 2012Assignee: Scivax CorporationInventors: Yoshiaki Takaya, Yuji Hashima, Yoshihisa Hayashida, Hirosuke Kawaguchi, Satoru Tanaka, Akihiko Kanai, Kazuaki Uehara
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Patent number: 8206635Abstract: Tubular casting processes, such as dip-coating, may be used to form substrates from polymeric solutions which may be used to fabricate implantable devices such as stents. The polymeric substrates may have multiple layers which retain the inherent properties of their starting materials and which are sufficiently ductile to prevent brittle fracture. Parameters such as the number of times the mandrel is immersed, the duration of time of each immersion within the solution, as well as the delay time between each immersion or the drying or curing time between dips and withdrawal rates of the mandrel from the solution may each be controlled to result in the desired mechanical characteristics. Additional post-processing may also be utilized to further increase strength of the substrate or to alter its shape.Type: GrantFiled: June 20, 2008Date of Patent: June 26, 2012Assignee: Amaranth Medical Pte.Inventors: Kamal Ramzipoor, Alfred N. K. Chia, Liwei Wang
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Patent number: 8206636Abstract: Tubular casting processes, such as dip-coating, may be used to form substrates from polymeric solutions which may be used to fabricate implantable devices such as stents. The polymeric substrates may have multiple layers which retain the inherent properties of their starting materials and which are sufficiently ductile to prevent brittle fracture. Parameters such as the number of times the mandrel is immersed, the duration of time of each immersion within the solution, as well as the delay time between each immersion or the drying or curing time between dips and withdrawal rates of the mandrel from the solution may each be controlled to result in the desired mechanical characteristics. Additional post-processing may also be utilized to further increase strength of the substrate or to alter its shape.Type: GrantFiled: June 19, 2009Date of Patent: June 26, 2012Assignee: Amaranth Medical Pte.Inventors: Kamal Ramzipoor, Alfred N. K. Chia, Liwei Wang, Chang Y. Lee
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Patent number: 8182737Abstract: Formed film, apparatus and methods for manufacturing formed film, and articles of manufacture are disclosed. Methods include controlled introduction of melt foldovers through modifying the surface area of a polymer melt curtain. Apparatus for same is also shown as are articles of formed film with melt foldovers.Type: GrantFiled: August 5, 2005Date of Patent: May 22, 2012Assignee: Tredegar Film Products CorporationInventors: James D. Tribble, Rickey J. Seyler, Matthew J. O'Sickey, Timothy L. Clark
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Patent number: 8182732Abstract: Here is disclosed a composite sheet comprising substantially non-stretchable nonwoven fabric sheets and a plurality of elastic members extending in a transverse direction and spaced one from another in a longitudinal direction by a given spacing wherein the elastic members are secured in a stretched state to the nonwoven fabric sheets. The composite sheet has a plurality of gathers formed by slightly undulated surface of the nonwoven fabric sheets and the elastic members and these gathers are substantially continuous in the longitudinal direction and arranged at substantially regular intervals in the transverse direction.Type: GrantFiled: October 21, 2004Date of Patent: May 22, 2012Assignee: Uni-Charm CorporationInventors: Kazuo Ukegawa, Masato Isono, Hiroaki Kamio, Toru Oba
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Patent number: 8173062Abstract: Methods of manufacturing a medical article that include radial deformation of a polymer tube are disclosed. A medical article, such as an implantable medical device or an inflatable member, may be fabricated from a deformed tube.Type: GrantFiled: September 30, 2004Date of Patent: May 8, 2012Assignee: Advanced Cardiovascular Systems, Inc.Inventor: Jonathan P. Durcan
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Patent number: 8128857Abstract: A method of shortening cycle time required to compression mold shingle or tile is provided, wherein carrier plates are comprised of a surface material and a base, and receive a thermoplastic material, thereon. The roofing material is applied to the carrier plate and the carrier plate is subjected to induction heating, by which its surface material has its temperature raised, without substantially raising the temperature of the carrier plate base, such that the thermoplastic material applied thereto is kept heated in the compression mold. Cooling of the thermoplastic material is by heat transfer from the carrier plate surface material to the carrier plate base, and with both materials having good heat conduction capability. The carrier plate surface material has a high receptivity to being heated by induction heating relative the carrier plate base. The carrier plates are serially delivered through the process, to the compression mold.Type: GrantFiled: December 11, 2009Date of Patent: March 6, 2012Assignee: CertainTeed CorporationInventors: Thomas Kevin MacKinnon, David Nelson, Nolan Loy Son, Trevor Reeve
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Patent number: 8119699Abstract: A method of recycling a laminate shaped product, including the steps of: breaking a shaped product having a laminate structure including at least one layer of aliphatic polyester resin in addition to a principal resin layer, storing resultant broken pieces in a moisturizing environment to adjust a moisture content of the aliphatic polyester resin (layer) to at least 0.5 wt. %, and then washing the broken pieces with alkaline water to remove the aliphatic polyester resin layer, thereby recovering the principal resin. As a result, it becomes possible to shorten an induction period in the alkaline water washing step that is a principal process step, thereby rationalizing the entire process.Type: GrantFiled: November 11, 2004Date of Patent: February 21, 2012Assignee: Kureha CorporationInventors: Kazuyuki Yamane, Ryo Kato, Akiko Wakamatsu
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Patent number: 8101101Abstract: Methods for improving the resistance of fumigant sorption in produce containers made from expandable polystyrene particles in a fumigation process, and related produce containers. An embodiment involves pre-expanding the expandable polystyrene particles to form pre-expanded particles; applying a coating comprised of a chemical selected from the group consisting of mineral oil, polyethylene wax, ethylene vinyl alcohol copolymer, and polyethylene glycol to the pre-expanded particles and in amount of 0.05 to 5.0 parts per hundred; and forming the container from the pre-expanded particles. A further embodiment involves applying the chemical coating to the expandable particles; pre-expanding the expandable polystyrene particles to form pre-expanded particles; and forming the containers from the pre-expanded particles. Other methods involve increasing the cell size of the expandable particles used to form the produce container.Type: GrantFiled: December 4, 2006Date of Patent: January 24, 2012Assignee: NOVA Chemicals Inc.Inventors: Jiansheng Tang, Jeffory E. Russell, Christine Hetzer, David A. Cowan
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Patent number: 8101102Abstract: A method for improving the resistance of fumigant sorption in a produce container made of expandable polystyrene particles in a fumigation process, and related produce container. Expandable polystyrene particles having a density ranging from 40.0 to 32.0 pounds per cubic foot and a blowing agent amount ranging from 2.5 to 7.5 weight percent are pre-expanded to form pre-expanded particles having a core bulk density ranging from 12.5 to 2.0 pounds per cubic foot, and a skin density ranging between 40.0 and 32.0 pounds per cubic foot and a thickness ranging from 0.1 to 2 microns. These pre-expanded particles are injected into a mold to form a produce container having a wall thickness ranging from 0.25 to 2.0 inches.Type: GrantFiled: December 4, 2006Date of Patent: January 24, 2012Assignee: NOVA Chemicals Inc.Inventors: Jiansheng Tang, Michael T. Williams, David A. Cowan
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Patent number: 8080194Abstract: Disclosed herein are methods and pressure vessels for solid-state microcellular processing of thermoplastic rolls and sheets. In one embodiment, the present invention is directed to a method for making a gas impregnated interleaved roll, which method comprises: providing a pressure vessel having an internal pressure chamber and a rotatable shaft horizontally positioned within the pressure chamber; placing an interleaved roll about the rotatable shaft and within the pressure chamber, wherein the interleaved roll is made from a thermoplastic material sheet interleaved together with a gas-channeling material sheet; pressurizing the pressure chamber to a selected pressure; rotating the rotatable shaft having the interleaved roll thereabouts (thereby rotating the interleaved roll) while under pressure for a selected period of time; and depressurizing the internal chamber to yield the gas impregnated interleaved roll.Type: GrantFiled: June 15, 2009Date of Patent: December 20, 2011Assignee: MicroGREEN Polymers, Inc.Inventors: Krishna Nadella, Steven Powers, Thomas Malone
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Controlled deformation of a polymer tube with a restraining surface in fabricating a medical article
Patent number: 8043553Abstract: Methods of manufacturing a medical article that include radial deformation of a polymer tube are disclosed. A medical article, such as an implantable medical device or an inflatable member, may be fabricated from a deformed tube.Type: GrantFiled: September 30, 2004Date of Patent: October 25, 2011Assignee: Advanced Cardiovascular Systems, Inc.Inventor: Jonathan P. Durcan -
Patent number: 8025831Abstract: The present invention is directed to micro- and nano-scale imprinting methods and the use of such methods to fabricate supported and/or free-standing 3-D micro- and/or nano-structures of polymeric, ceramic, and/or metallic materials. In some embodiments, a duo-mold approach is employed in the fabrication of these structures. In such methods, surface treatments are employed to impart differential surface energies to different molds and/or different parts of the mold(s). Such surface treatments permit the formation of three-dimensional (3-D) structures through imprinting and the transfer of such structures to a substrate. In some or other embodiments, such surface treatments and variation in glass transition temperature of the polymers used can facilitate separation of the 3-D structures from the molds to form free-standing micro- and/or nano-structures individually and/or in a film.Type: GrantFiled: May 24, 2004Date of Patent: September 27, 2011Assignees: Agency for Science, Technology and Research, The Regents of University of MichiganInventors: Yen Peng Kong, Hong Yee Low, Stella W. Pang, Albert F. Yee