Organic Substrate Patents (Class 427/491)
  • Patent number: 9737909
    Abstract: Machine (1) for the plasma treatment of containers (3), which comprises: a chamber (5) suitable for receiving a container (3) to be treated, a cover (8) defining a nozzle (9) in the extension of the chamber (5); a duct (14) for depressurization the container (3), which duct opens into the nozzle (9) and connects the latter to a vacuum source (15); a first valve (19) having a closed position, in which it closes off the depressurization duct (14), and an open position, in which it brings the nozzle (9) and the vacuum source (15) into communication; a duct (27) for pressurizing the container (3), separate from the depressurization duct (14), this pressurization duct (27) emerging in the nozzle (9) beyond the depressurization duct (14) and connecting the nozzle (9) to a pressure source (28); and a second valve (29) having a closed position, in which it closes off the pressurization duct (27), and an open position, in which it brings the nozzle (9) and the pressure source (28) into communication.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: August 22, 2017
    Inventors: Yves-Alban Duclos, Laurent Danel, Naima Boutroix
  • Patent number: 9089745
    Abstract: Described herein are methods for treating a surface of a first golf club head component with a plasma treatment prior to bonding a second golf club head component to the plasma-treated surface of the first golf club head component.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: July 28, 2015
    Assignee: Taylor Made Golf Company, Inc.
    Inventors: Mark Vincent Greaney, Sanjay Mukatira Kuttappa, Herbert Stanley Heffernan, III
  • Publication number: 20150079300
    Abstract: A method and apparatus for depositing a film on a biological substrate are provided. A plasma generation device includes a dielectric conduit and a high voltage electrode. The plasma generation device is placed in proximity to the biological substrate and a gas supply that includes a precursor material is directed through the dielectric conduit. An electric field generated by the potential difference between the high voltage electrode and the biological substrate ionizes at least a portion of the gas supply and causes plasma to emanate from the dielectric conduit and contact the biological substrate. The plasma induces a reaction of the precursor material to form a film that is deposited on the biological substrate.
    Type: Application
    Filed: November 25, 2014
    Publication date: March 19, 2015
    Inventors: David Staack, Tsung-Chan Tsai
  • Patent number: 8945684
    Abstract: The invention relates to a process for depositing an anti-fouling top coat onto the outermost coating layer of a coated optical article, comprising the following steps: a) providing an optical article having two main faces, at least one of which being coated with an outermost layer; b) treating said outermost layer with energetic species resulting in surface physical attack and/or chemical modification; and c) vacuum evaporating a liquid coating material for an anti-fouling top coat by means of an evaporation device, resulting in the deposition of the evaporated coating material onto the treated outermost layer of the optical article, wherein prior to the vacuum evaporation step of the liquid coating material, said liquid coating material has been treated with energetic species.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: February 3, 2015
    Assignee: Essilor International (Compagnie Generale d'Optique)
    Inventor: Gérald Fournand
  • Publication number: 20140336758
    Abstract: The invention relates to a method for hydrophilizing surfaces of polymer workpieces. The method has a step (a) of pretreating the workpiece surfaces in a high-frequency gas plasma which is produced on the basis of an inert gas in order to clean and activate the workpiece surfaces; a step (b) of precoating the pretreated workpiece surfaces with polyacrylic acid using a high-frequency gas plasma made of a gas mixture, said gas mixture being composed of an inert gas and a first gas made of biocompatible, polymerizable carboxy group-containing monomers; and a step (c) of subsequently coating the precoated workpiece surfaces using a second gas substantially containing acrylic acid monomers.
    Type: Application
    Filed: February 1, 2013
    Publication date: November 13, 2014
    Inventors: Martin Görne, Thomas Kordick
  • Publication number: 20140335439
    Abstract: Disclosed are a polymer ion exchange membrane having a self-hydration capability at a high temperature under low humidity, a method of preparing the polymer ion exchange membrane, and a polymer electrolyte fuel cell system including the polymer ion exchange membrane. The polymer electrolyte membrane includes a hydrocarbon-based proton conductive polymercoating layer, and has a nano-crack on the hydrophobic surface and thus may secure ion conductivity and self-hydration capability under low humidity and remarkably improve electrochemical performance of an electrolyte.
    Type: Application
    Filed: July 23, 2014
    Publication date: November 13, 2014
    Inventors: Young Moo LEE, Chi Hoon Park, Doo Sung Hwang, So Young Lee, Dong Won Shin
  • Patent number: 8883257
    Abstract: Disclosed herein is a method for producing a plastic container coated with a thin film that is excellent in gas barrier properties, film coloration and film adhesiveness without using an external electrode having a special shape while suppressing deposition of foreign matters such as carbon powders.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: November 11, 2014
    Assignee: Kirin Beer Kabushiki Kaisha
    Inventors: Masaki Nakaya, Mari Shimizu
  • Publication number: 20140255968
    Abstract: The present invention relates to a method for fabricating a patterned substrate for a cell culture, comprising the steps of: (1) preparing a substrate; (2) depositing a plasma polymer layer by using a precursor material on the substrate; (3) placing a shadow mask having a predetermined pattern on the plasma polymer layer; (4) treating the substrate, having the shadow mask placed thereon, with a reactive gas using plasma; and (5) removing the shadow mask from the substrate, and a patterned substrate for the cell culture fabricated thereby. The invention also relates to a method for a cell culture with a pattern, comprising the step of culturing cells on the patterned substrate for the cell culture, and a patterned cell chip, and a method of screening a material having an activity of inducing or promoting angiogenesis using the patterned cell chip.
    Type: Application
    Filed: February 19, 2014
    Publication date: September 11, 2014
    Inventors: Dong Geun JUNG, Myung Hoon HA, Heon Yong PARK, Ji Soo PARK, Hye Rim LEE
  • Patent number: 8795790
    Abstract: [Problem] An object is to provide a magnetic recording medium with improved HDI characteristics, such as impact resistance, and its manufacturing method. [Solution] A typical structure of a magnetic recording medium 100 according to the present invention includes, on a base, at least a magnetic recording layer 122, a protective layer 126, and a lubricating layer 128, wherein the magnetic recording layer 122 includes, in an in-plane direction, a magnetic recording part 136 configured of a magnetic material and a non-recording part 134 magnetically separating the magnetic recording part 136, and a surface corresponding to the non-recording part 134 protuberates more than a surface corresponding to the magnetic recording part 136.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: August 5, 2014
    Assignee: WD Media (Singapore) Pte. Ltd.
    Inventors: Yoshiaki Sonobe, Akira Shimada, Tsuyoshi Ozawa, Masanori Aniya
  • Patent number: 8748120
    Abstract: In one embodiment of the invention, there is provided a method of selecting a surface chemistry for culturing a given cell line, including the steps of: (i) providing a first substrate having a plasma polymerized surface with first and second regions, said first region having a first concentration of carboxylic acid groups on said plasma polymerized surface and said second region having a second concentration of carboxylic acid groups on said plasma polymerized surface, wherein said first and second concentrations are different; (ii) culturing cells from said cell line on said plasma polymerized surface in each said region; (iii) observing activity of said cultured cells in each said region, said activity selected from the group consisting of alkaline phosphatase activity of the cultured cells, cell growth of the cultured cells, attachment of the cultured cells, and cell spreading of the cultured cells; and iv) selecting, based on a particular observed activity, a secondary substrate for culturing said cells
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: June 10, 2014
    Assignee: Corning Incorporated
    Inventors: Robert Short, Patricia Murray, Kristina Parry
  • Patent number: 8696909
    Abstract: A bioartificial kidney equivalent and a process for producing the bioartificial kidney equivalent. The hybrid bioartificial kidney comprises human proximal and distal renal tubule cells grown on particular synthetic membranes.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: April 15, 2014
    Assignee: Gambro Lundia AB
    Inventors: David Luttropp, Bernd Krause, Markus Neubauer, Andrea Schnell, Helmut Geiger, Juergen Bereiter-Hahn, Patrick Baer, Doris Deppisch
  • Patent number: 8679592
    Abstract: A method for continuously processing carbon fiber including establishing a microwave plasma in a selected atmosphere contained in an elongated chamber having a microwave power gradient along its length defined by a lower microwave power at one end and a higher microwave power at the opposite end of the elongated chamber. The elongated chamber having an opening in each of the ends of the chamber that are adapted to allow the passage of the fiber tow while limiting incidental gas flow into or out of said chamber. A continuous fiber tow is introduced into the end of the chamber having the lower microwave power. The fiber tow is withdrawn from the opposite end of the chamber having the higher microwave power. The fiber to is subjected to progressively higher microwave energy as the fiber is being traversed through the elongated chamber.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: March 25, 2014
    Assignee: UT-Battelle, LLC
    Inventors: Terry L. White, Felix L. Paulauskas, Timothy S. Bigelow
  • Patent number: 8668093
    Abstract: Versions of the invention include compositions and methods for making them that include a polymeric porous membrane with one or more atmospheric pressure microwave plasma modified surfaces. The modified porous membrane is stable, non-dewetting, and retains its mechanical strength.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: March 11, 2014
    Assignee: Entegris, Inc.
    Inventors: Jijun Ge, Alketa Gjoka, Jieh-Hwa Shyu
  • Patent number: 8530004
    Abstract: Disclosed is a polymeric electret film as well as the method of manufacturing the same. The polymeric electret film comprises a polytetrafluoroethylene film and an electrode layer. The polytetrafluoroethylene film includes a porous layer, which has a porous structure. The porous structure has a pore diameter ranging between 0.01 ?m and 5.0 ?m and has a porosity ranging between 20% and 95%. The polytetrafluoroethylene film has a thickness ranging between 1 ?m and 50 ?m, and is preferably made of expanded porous polytetrafluoroethylene. The polymeric electret film has a surface potential ranging between 0.1 V and 1000 V.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: September 10, 2013
    Assignee: EF-Materials Industries Inc.
    Inventors: James Huang, Sean Chen, Radium Huang
  • Patent number: 8337957
    Abstract: The invention relates to a method for depositing a polymer layer containing nanoparticles on a substrate material. The method comprises the steps of providing the substrate material, providing a polymerization material near a surface of the substrate material, conducting a gas flow near the surface of the substrate material, the gas flow comprising a nanomaterial, and depositing the polymer layer at the surface of the substrate material by applying a plasma polymerization process.
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: December 25, 2012
    Assignee: Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek TNO
    Inventors: Marcel Simor, Ales Fiala
  • Patent number: 8288118
    Abstract: In one embodiment of the invention, there is provided a method of analyzing various surface chemistries for culturing a particular cell line, which includes the steps of: (1) providing a plasma polymerized surface having first and second regions, the first region including a first concentration of carboxylic acid groups in the plasma polymerized surface and the second region including a second concentration of carboxylic acid groups in the plasma polymerized surface, wherein the first and second concentrations are different; (2) culturing cells from the cell line on the plasma polymerized surface in each the region; (3) observing activity of the cultured cells in each the region; and (4) analyzing the activity of the cultured cells in each region.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: October 16, 2012
    Assignee: Becton, Dickinson and Company
    Inventors: Robert Short, Patricia Murray, Kristina Parry
  • Publication number: 20110152409
    Abstract: A substrate for biochips which has a high probe loading amounts and a uniform immobilization density, and which further has a high detection sensitivity and a high reproducibility by preventing a non-specific adsorption of proteins, when used as a substrate for biochips for immobilizing probes composed of biologically relevant substances such as proteins and nucleic acids, is disclosed. Amino groups can be bound to the surface of the substrate uniformly, at a high density and stably by covalently immobilizing an amino group-containing polymer on the surface of the substrate. The probe immobilization rate is high and immobilizing density was uniform by immobilizing a probe composed of a biologically relevant substance such as a protein or nucleic acid by utilizing the amino groups. Further, detection sensitivity and reproducibility are high by inhibiting non-specific adsorption of proteins.
    Type: Application
    Filed: June 30, 2009
    Publication date: June 23, 2011
    Inventors: Kiyoshi Nokihara, Akiyoshi Hirata, Yasuo Oka, Yasushi Takebayashi
  • Patent number: 7892636
    Abstract: A carbon foam composite including a carbon foam skeleton having a supplemental material therein, the composite useful for, inter alia, a variety of applications including applications requiring durability and water resistance. Also included is a method for making such carbon foam composite materials.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: February 22, 2011
    Assignee: GrafTech International Holdings Inc.
    Inventors: Douglas J. Miller, David M. Kaschak, Richard L. Shao
  • Patent number: 7887889
    Abstract: The application discloses articles and methods of plasma fluorination treatment that employ a capacitively-coupled system to fluorinate porous articles. The methods include placing the article to be treated within an ion sheath adjacent to an electrode and placing the article to be treated between powered and grounded electrodes separated by about 25 mm or less.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: February 15, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Moses M. David, Gina M. Buccellato, John S. Huberty, Seth M. Kirk
  • Patent number: 7887890
    Abstract: Provided is a method of manufacturing a plastic substrate with lower auto-fluorescence and better specificity. The method includes: (a) preparing a plastic substrate having an Atomic Force Microscopic (AFM) surface roughness of Ra<3 nm or Rq<4 nm under the condition of 50 ?m×50 ?m or less; (b) treating the plastic substrate with plasma; and (c) treating the plastic substrate with a surface-modifying monomer. A plastic substrate manufactured by the method is also provided. The plastic substrate exhibits a remarkably low auto-fluorescence and thus better specificity for detection of target biomolecules, which enables the broad application of a plastic substrate, which can be easily designed to include a microfluidic structure relative to a glass substrate but has been limitedly used due to high auto-fluorescence, to microarrays, biochips, or well plates.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: February 15, 2011
    Assignees: LG Chem, Ltd., LG Life Sciences, Ltd.
    Inventors: Gihune Jung, Jinseok Kang, Hee Ju Kim, Ji Hyun Kwon, Young Mee Lee, Young Soo Seo, In Soo Kim
  • Patent number: 7879396
    Abstract: We have developed an improved vapor-phase deposition method and apparatus for the application of layers and coatings on various substrates. The method and apparatus are useful in the fabrication of biotechnologically functional devices, Bio-MEMS devices, and in the fabrication of microfluidic devices for biological applications. In one important embodiment, oxide coatings providing hydrophilicity or oxide/polyethylene glycol coatings providing hydrophilicity can be deposited by the present method, over the interior surfaces of small wells in a plastic micro-plate in order to increase the hydrophilicity of these wells. Filling these channels with a precise amount of liquid consistently can be very difficult. This prevents a water-based sample from beading up and creating bubbles, so that well can fill accurately and completely, and alleviates spillage into other wells which causes contamination.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: February 1, 2011
    Assignee: Applied Microstructures, Inc.
    Inventors: Boris Kobrin, Jeffrey D. Chinn, Romuald Nowak, Richard C. Yi
  • Publication number: 20100282693
    Abstract: A method for maintaining pore size of a reusable filtration membrane, said method comprising exposing said filtration membrane to a plasma comprising a hydrocarbon or fluorocarbon monomer so as to form a polymeric layer on the surface thereof. The treatment allows the filtration membrane to withstand washing procedures, in particular caustic washing. Thus reusable filtration membranes treated in this way and their use, form a further aspect of the invention.
    Type: Application
    Filed: October 28, 2008
    Publication date: November 11, 2010
    Inventors: Stephen Coulson, Richard Wakeman
  • Patent number: 7785649
    Abstract: Disclosed herein are a protein chip substrate and a method for manufacturing the protein chip substrate. The method includes deposition of plasma polymerized ethylenediamine (PPEDA) having an amine group on plasma polymerized cyclohexnane (PPCHex) by inductively coupled plasma-chemical vapor deposition (ICP-CVD), thereby preventing non-specific adsorption of proteins on a slide surface.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: August 31, 2010
    Assignee: Sungkyunkwan University Foundation for Corporate Collaboration
    Inventors: Dong-geun Jung, Sang-hak Yeo, Chang-rok Choi
  • Publication number: 20100203257
    Abstract: The invention relates to a method for treating an elongated object using a plasma process. The method comprises the steps of providing an elongated object in a cylindrical electrode structure, and applying potential differences between electrodes of an electrode structure to generate the plasma process. Further, the method comprises at least partially surrounding the elongated object by a unitary section of the guiding structure, the electrode structure being associated with the unitary section.
    Type: Application
    Filed: January 10, 2008
    Publication date: August 12, 2010
    Applicant: Nederlandse Oraganisatie voor toegepastnatuurwetenschappelijk Onderzoek TNO
    Inventors: Marcel Simor, Ales Fiala
  • Patent number: 7682664
    Abstract: Disclosed are processes and compositions for fabricating irradiation targets from slurry compositions using a slip casting method to form a layer of the slurry composition on a substrate. The layer of slurry is allowed to dry on the substrate to produce a green cast layer that may then be cut, milled or otherwise machined to form intermediate targets having one or more predetermined configurations. These intermediate targets are subsequently subjected to a thermal process by which organic components remaining in the green cast layer are driven off and/or oxidized to form a densified, substantially inorganic, layer that has a density below that of the primary particles.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: March 23, 2010
    Assignee: Advanced Applied Physics Solutions, Inc.
    Inventors: Marik Dombsky, Victoire Hanemaayer
  • Publication number: 20100035074
    Abstract: A method of modifying a polymeric, inorganic, or organic-functionalized substrate surface is provided. In one embodiment, an atmospheric pressure (AP) plasma stream is directed at a substrate surface, leading to the formation of surface-bound active sites that function as polymerization initiators. When contacted with a monomer or monomer solution, the active sites facilitate formation of a dense array of graft polymers covalently bound to the substrate surface. In another embodiment, an inorganic substrate is cleaned, conditioned in a humidity chamber, treated with an AP plasma, and contacted with a monomer or monomer solution to facilitate formation and growth of graft polymers on the substrate surface.
    Type: Application
    Filed: November 13, 2007
    Publication date: February 11, 2010
    Inventors: Yoram Cohen, Gregory Todd Lewis
  • Patent number: 7578889
    Abstract: Systematic and effective methodology to clean capacitively coupled plasma reactor electrodes and reduce surface roughness so that the cleaned electrodes meet surface contamination specifications and manufacturing yields are enhanced. Pre-cleaning of tools used in the cleaning process helps prevent contamination of the electrode being cleaned.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: August 25, 2009
    Assignee: Lam Research Corporation
    Inventors: Hong Shih, Yaobo Yin, Shun Jackson Wu, Armen Avoyan, John E. Daugherty, Linda Jiang
  • Publication number: 20090169872
    Abstract: Radiation curable coatings and methods of utilizing the coatings are provided. In a general embodiment, the present disclosure provides a coating composition containing about 15% to about 80% by weight of one or more radiation curable compounds such as polycarbonate acrylate oligomers, polyurethane acrylate oligomer, polyester acrylate oligomers, silicone-based acrylate oligomers, or a combination thereof, and about 10% to about 80% by weight of one or more acrylate monomers.
    Type: Application
    Filed: December 22, 2008
    Publication date: July 2, 2009
    Inventors: Vadim V. Krongauz, Michael T. K. Ling, Lecon Woo
  • Patent number: 7488518
    Abstract: In order to provide a process for curing a coating, in particular a radiation-curable coating, on a work piece, which allows coatings even on difficult to access regions of a three-dimensional work piece to be cured in a simple manner, it is proposed that the work piece is disposed in a plasma generation area, and that in the plasma generation area a plasma is generated, by means of which the coating is at least partially cured.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: February 10, 2009
    Assignee: Duerr Systems GmbH
    Inventors: Konrad Ortlieb, Dietmar Wieland, Wolfgang Tobisch, Dietmar Roth, Karl-Heinz Dittrich
  • Patent number: 7470469
    Abstract: A medical device comprising a substrate having a plasma polymerized functionality bonded to at least a portion of the substrate. A superoxide dismutase mimic agent having a complimentary functional group to the plasma polymerized functionality is bonded to the portion of the substrate by bonding to the plasma polymerized functionality. The functionalities can be carboxylate, amine, or sulfate groups and/or polyethylene glycol and can optionally include crosslinking groups.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: December 30, 2008
    Assignee: Advanced Cardiovascular Systems Inc.
    Inventors: Eugene T. Michal, Murthy Simhambhatla, Charles D. Claude
  • Publication number: 20080318026
    Abstract: A polymer-carbon nanomaterial composite. The composite includes a polymer matrix; and plasma-modified carbon nanomaterials having surface functional groups attached thereto, wherein the carbon nanomaterial is selected from carbon nanotubes, carbon nanofibers, carbon nanoparticles, carbon black, nanodiamond, fullerenes, or combinations thereof. The invention also involves a method of making a polymer-carbon nanomaterial composite, and a method of modifying carbon nanomaterials.
    Type: Application
    Filed: June 25, 2007
    Publication date: December 25, 2008
    Inventors: Liming Dai, Wei Chen, Zheng Rong Xu, Frank Espinosa
  • Publication number: 20080286537
    Abstract: An economical method of manufacturing a plastic glazing assembly having a decorative marking and/or opaque border printed from a thermally curable ink is presented. This method includes the steps of forming a substantially transparent plastic panel; printing an opaque pattern from an ink, the printed pattern being in contact with the plastic panel; pre-drying the ink of the printed pattern to a tack-free condition; applying a weather resistant layer on the printed pattern and on the plastic panel; curing the ink of the printed pattern and the weather resistant layer; and depositing an abrasion resistant layer on the weather resistant layer. In this process the drying of the ink substantially removes the solvent from the ink without substantially curing the ink.
    Type: Application
    Filed: May 9, 2008
    Publication date: November 20, 2008
    Inventors: Christophe Lefaux, Sunitha K. Grandhee
  • Publication number: 20080268252
    Abstract: A process for preparing a coating on an object by plasma polymerizing a first compound under conditions to deposit a layer onto the object, the object comprising a nanocomposite polymer. In addition, the object so coated.
    Type: Application
    Filed: September 19, 2006
    Publication date: October 30, 2008
    Inventors: Juan Garces, Christopher M. Weikart
  • Patent number: 7410675
    Abstract: The invention relates to the use of a polyolefinic film, with at least one layer, which is made from polyolefinic polymers, whereby said polyolefinic film comprises a bonding layer as outer layer. Said bonding layer contains at least 50 wt. % based on the weight of the layer of a maleic anhydride modified polyolefin. The film is used for printing, metallising or coating.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: August 12, 2008
    Assignee: Trespaphan GmbH
    Inventors: Detlef Busch, Joachim Jung
  • Patent number: 7387836
    Abstract: There are disclosed novel uses of aziridine compounds. The aziridine compounds can be formed into films by plasma deposition on a wide variety of substrates. The films prevent biofouling, impart biocompatible or antithrombotic properties, and can immobilize therapeutic and pharmaceutical agents to provide a drug delivery system.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: June 17, 2008
    Assignee: Genzyme Corporation
    Inventors: Diego A. Gianolio, Erika E. Johnston, Robert J. Miller
  • Patent number: 7354629
    Abstract: A method of forming a protective film that restrains gas adsorption while preserving durability and corrosion resistance of a plasma CVD carbon film is disclosed. A protective film of a slide-resistant member is deposited by means of a plasma CVD method using a raw material of hydrocarbon gas, wherein a bias voltage higher than ?500 V is applied to the slide-resistant member in an initial stage of depositing the protective film, and a bias voltage of ?500 V or lower is applied in a final stage of deposition. A proportion of time duration of the final stage is preferably at most 25% of the total time for depositing the protective film. A magnetic recording medium comprising a magnetic recording layer and a protective film formed by the method also is disclosed.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: April 8, 2008
    Assignee: Fuji Electric Device Technology Co., Ltd.
    Inventor: Naruhisa Nagata
  • Patent number: 7311970
    Abstract: A medical device comprising a substrate having a plasma polymerized functionality bonded to at least a portion of the substrate. A superoxide dismutase mimic agent having a complimentary functional group to the plasma polymerized functionality is bonded to the portion of the substrate by bonding to the plasma polymerized functionality.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: December 25, 2007
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Eugene T. Michal, Murthy Simhambhatla, Charles D. Claude
  • Patent number: 7303923
    Abstract: We describe an assay device which comprises (a) a substrate comprising: (i) a porous material capable of chromatographically transporting a liquid and (ii) one or more test reagents for an assay provided on the porous material; and (b) a water-impermeable coating polymer attached to the porous material so as to define a continuous bibulous compartment.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: December 4, 2007
    Assignee: Diamatrix Limited
    Inventors: David John Hardman, James Howard Slater, Adam G. Reid, William Kenneth Lang, James Richard Jackson
  • Patent number: 7294357
    Abstract: Suture filaments coated by a plasma polymerization process exhibit a good balance of knot run down and knot security characteristics, superior tissue drag characteristics, and improved fray resistance.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: November 13, 2007
    Assignee: Tyco Healthcare Group LP
    Inventor: Mark Roby
  • Patent number: 7220810
    Abstract: A polymer film having a low dielectric constant is produced polymerizing a raw material gas containing a compound of the formula (1): wherein PCA represents a polycycloaliphatic hydrocarbon group, ALK represents a divalent aliphatic hydrocarbon group, m is 1 or 2, n is 0 or 1, and R1 and R2 represent independently each other an alkyl group, an alkenyl group, an alkynyl group, an alkoxy group, an aryl group or an aryloxy group by a plasma polymerization method.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: May 22, 2007
    Assignees: Sumitomo Chemical Company, Limited, NEC Corporation, ASM Japan K.K.
    Inventors: Nobutaka Kunimi, Jun Kawahara, Akinori Nakano, Keizo Kinoshita
  • Patent number: 7220460
    Abstract: A method of forming a layer or layers are disclosed which comprises the steps of transporting a substrate having a first surface and a second surface on the side opposite the first surface to a gap formed between a first electrode and a second electrode opposing each other, the second surface having a coefficient of kinetic friction of not more than 0.9; and subjecting the first surface of the substrate to plasma discharge treatment to form the layer at atmospheric pressure or at approximately atmospheric pressure while supplying a reactive gas to the gap.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: May 22, 2007
    Assignee: Konica Corporation
    Inventors: Takashi Murakami, Kazuhiro Fukuda
  • Patent number: 7175900
    Abstract: A cushioning and positioning pad has a body formed from superposed layers of resiliently compressible foam material and a reinforcing sheet embedded between adjacent layers. The reinforcing sheet is of such stiffness as to resist contraction along its length and width dimensions, but is resiliently bendable in response to the application of a force along its thickness dimension. The reinforcing sheet resists undesirable contraction lengthwise and widthwise of the pad when the latter is encapsulated in a curable coating of material which shrinks as it cures.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: February 13, 2007
    Assignee: Contour Fabricators, Inc.
    Inventor: John W. Schaefer
  • Patent number: 6956098
    Abstract: The substrates of the present invention comprise a polyimide base polymer derived at least in part from collinear monomers together with crankshaft monomers. The resulting polyimide material has been found to provide advantageous properties, particularly for electronics type applications.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: October 18, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: John Donald Summers, Richard Frederich Sutton, Jr., Brian Carl Auman
  • Patent number: 6878419
    Abstract: The application discloses methods of plasma treatment that employ an ion sheath in a capacitively-coupled system to increase the hydrophilicity of porous articles, including microporous articles having pore sizes of 0.05 to 1.5 micrometers, both on their surfaces and in their pores such that the articles' bulk wetting properties are improved.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: April 12, 2005
    Assignee: 3M Innovative Properties Co.
    Inventors: Moses Mekala David, Brinda Balasubramaniam Lakshmi
  • Patent number: 6878418
    Abstract: A system and method for improving the durability and reliability of recording media used in hard drives is disclosed. A protective overcoat made by depositing a diamond like carbon (DLC) layer over a magnetic layer and then depleting a portion of the DLC protective layer of hydrogen before it is coated with a Perfluoropolyethers (PFPE) using an in-situ vapor lubrication technique. The portion of the DLC layer which is depleted can be data zone of the media so that the lubricant-bonding ratio is higher for the landing zone than it is for the data zone.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: April 12, 2005
    Assignee: Seagate Technology LLC
    Inventors: Xiaoding Ma, Michael Joseph Stirniman, Jing Gui
  • Patent number: 6861087
    Abstract: A method for modifying surface of biodegradable porous polymer scaffold for tissue engineering using a low temperature plasma discharge apparatus, and particularly, a method for inducing the biodegradable porous polymer scaffold to be hydrophilic by graft polymerizing a hydrophilic monomer on the surface of the biodegradable porous polymer scaffold, which is made of polylactic acid, polyglycolic acid or poly(lactic acid-glycolic acid) copolymer, using a low temperature plasma. The surface-modified porous polymer scaffold according to the present invention has an enhanced cell compatibility in cell culture in vitro, and promote tissue growth when the cell is transplanted into a body.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: March 1, 2005
    Assignees: Korea Institute of Science and Technology, Solco Biomedical Co., Ltd.
    Inventors: Dong Keun Han, Kwang Duk Ahn, Young Min Ju, Saeyoung Ahn
  • Patent number: 6841201
    Abstract: An apparatus and method that generates plasma using a microwave radiation supply. The plasma is used to treat a surface of a workpiece at approximately atmospheric pressure. Plasma excites a working gas to create an excited gaseous species without degradation from undue heat caused by the plasma. The gaseous species exit an outlet of the apparatus to treat the surface of a workpiece when the outlet is juxtaposed with the workpiece.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: January 11, 2005
    Assignee: The Procter & Gamble Company
    Inventors: Vesselin Nikolov Shanov, Saswati Datta, Seved Farhad Miralai, John Andrew McDaniel
  • Patent number: 6812167
    Abstract: This invention provides a method to improve the adhesion between dielectric material layers at the interface thereof, during the manufacture of a semiconductor device. The first step is to form a SiC-based dielectric material layer over a substrate. The SiC-based dielectric material layer is treated by oxygen plasma. A second layer of dielectric material is formed over the SiC-based dielectric material layer.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: November 2, 2004
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd
    Inventors: Yu-Huei Chen, Lain-Jong Li
  • Patent number: 6793960
    Abstract: A medical device comprising a substrate having a plasma polymerized functionally bonded to at least a portion of the substrate. A superoxide dismutase mimic agent having a complimentary functional group to the plasma polymerized functionality is bonded to the portion of the substrate by bonding to the plasma polymerized functionality.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: September 21, 2004
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Eugene T. Michal, Murthy Simhambhatla, Charles D. Claude
  • Patent number: RE43651
    Abstract: A method of coating a surface with a polymer layer, which method comprises exposing said surface to a plasma comprising a monomeric unsaturated organic compound which comprises a chain of carbon atoms, which are optionally substituted by halogen; provided that where the compound is a perhalogenated alkene, it has a chain of at least 5 carbon atoms; so as to form an oil or water repellent coating on said substrate.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: September 11, 2012
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: Jas P. S. Badyal, Stephen Richard Coulson, Colin R. Willis, Stuart A. Brewer