Mold, Mask, Or Masterform Patents (Class 205/70)
  • Patent number: 10357334
    Abstract: A dental device (such as a dental matrix or teeth tray) for use in in securing to one or more teeth during a dental restoration procedure or another dental procedure. In the case of a dental matrix, the dental matrix can be manufactured (e.g., in a dentist's facility using a three-dimensional printer apparatus or the like) after the targeted tooth of the patient in the dentist's facility is prepared for a filling material. As such, in some circumstances, the dental matrix is not necessarily a prefabricated metal band that is intended to be used with any of a variety of differently sized and shaped teeth of any of a variety of different patients, but instead the dental matrix may optionally be promptly fabricated according to the specific anatomical shape and size of a particular tooth of a particular patient while that patient is waiting in the dental chair.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: July 23, 2019
    Assignee: Hegland LLC
    Inventor: Lindsay Hegland
  • Patent number: 10279357
    Abstract: An aperture plate is manufactured by plating metal around a mask of resist columns having a desired size, pitch, and profile, which yields a wafer about 60 ?m thickness. This is approximately the full desired target aperture plate thickness. The plating is continued so that the metal overlies the top surfaces of the columns until the desired apertures are achieved. This needs only one masking/plating cycle to achieve the desired plate thickness. Also, the plate has passageways formed beneath the apertures, formed as an integral part of the method, by mask material removal. These are suitable for entrainment of aerosolized droplets exiting the apertures.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: May 7, 2019
    Assignee: Stamford Devices Limited
    Inventors: Brendan Hogan, Hong Xu
  • Patent number: 10220584
    Abstract: Various systems and apparatuses for heating molds, including for example tire molds, are disclosed. Heating of molds may be effected via induction heating technology. In one embodiment, a system for heating a tire mold is provided, the system comprising: a tire mold formed from a mold material having a base material relative permeability, wherein the tire mold includes a mold surface for contacting a tire, the mold surface for contacting a tire having a mold surface for contacting a tire relative permeability, wherein the tire mold includes a mold back oriented substantially opposite the mold surface for contacting a tire, and wherein the mold surface for contacting a tire relative permeability is greater than the base material relative permeability.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: March 5, 2019
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventor: Edward S. Seroka
  • Patent number: 9556532
    Abstract: A method is provided for manufacturing a mold that has a porous alumina layer over its surface, which is capable of preventing formation of pits (recesses). A moth-eye mold manufacturing method of an embodiment of the present invention is a method for manufacturing a mold which has a porous alumina layer over its surface, including the steps of: providing a mold base which includes an aluminum base and an aluminum film deposited on a surface of the aluminum base, the aluminum film having a purity of not less than 99.99 mass %; anodizing a surface of the aluminum film to form a porous alumina layer which has a plurality of minute recessed portions; and bringing the porous alumina layer into contact with an etching solution to enlarge the plurality of minute recessed portions of the porous alumina layer.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: January 31, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kiyoshi Minoura, Akinobu Isurugi, Ichirou Ihara, Hidekazu Hayashi, Kenichiro Nakamatsu
  • Patent number: 9234289
    Abstract: A method for manufacturing a molding core includes: providing a cylindrical roller having a circumference surface coated with a first film layer; coating a second film layer on the first film layer; coating a preprocessed molding film on the second film layer; engraving a number of molding patterns on the preprocessed molding film to obtain a molding film; separating the molding film from the roller and spreading out the molding film to be a flat plate; and manufacturing the molding core using the molding film by electroforming method.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: January 12, 2016
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Chia-Ling Hsu
  • Patent number: 9139924
    Abstract: For forming a nickel mold, a metal and a corresponding etchant are selected such that the etchant selectively etches the metal over nickel. The metal is sputtered onto a surface of a template having nano-structures to form a sacrificial layer covering the nano-structures. Nickel is electroplated onto the sacrificial layer to form a nickel mold, but leaving a portion of the sacrificial layer exposed. The sacrificial layer is contacted with the etchant through the exposed portion of the sacrificial layer to etch away the sacrificial layer until the nickel mold is separated from the template. Subsequently, the nickel mold may be replicated or scaled-up to produce a replicate mold by electroplating, where the replicate mold has nano-structures that match the nano-structures on the template. The metal may be copper.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: September 22, 2015
    Assignee: Agency for Science, Technology and Research
    Inventors: Kambiz Ansari, Christina Yuan Ling Tan, Yee Chong Loke, Jarrett Dumond, Isabel Rodriguez
  • Patent number: 9044879
    Abstract: The aim is to regulate thickness on the optical axis in the production of wafer lenses. Disclosed is a wafer lens production method that is equipped with a dispensing process for dropping resin onto a molding die (64), an imprinting process for pressing either the molding die (64) or a glass substrate (2) toward the other, and a releasing process for releasing the glass substrate (2) from the molding die (64), and that repeats the processing from the dispensing process to the releasing process as a single cycle and successively forms resin lenses (4) on the glass substrate 2); wherein the height (A) of the non-lens area (6) surrounding the lenses (4) and the heights (B and C) of the glass substrate (2) are measured between the releasing process of a first cycle and the dispensing process of a second cycle, and the position of the molding die (64) is corrected for imprinting processes of the second cycle, on the basis of the heights (A-C).
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: June 2, 2015
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Yuiti Fujii, Shigeru Hosoe, Toshiya Takitani, Akihiro Fujimoto
  • Patent number: 9045333
    Abstract: The invention relates to a method of fabricating a composite micromechanical component, particularly for timepiece movements, including steps: a) providing a substrate including a horizontal top layer and a horizontal bottom layer made of electrically conductive, micromachinable material, and secured to each other by an electrically insulating, horizontal, intermediate layer; b) etching a pattern in the top layer through to the intermediate layer, thereby forming at least one cavity in the substrate; c) coating the top part of the substrate with an electrically insulating coating; d) directionally etching the coating and the intermediate layer to limit the presence thereof exclusively at each vertical wall; e) performing an electrodeposition by connecting the electrode to the conductive bottom layer of the substrate to form at least one metal part of the component; g) releasing the composite component from the substrate.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: June 2, 2015
    Assignee: Nivarox-FAR S.A.
    Inventors: Pierre Cusin, Jean-Philippe Thiebaud
  • Publication number: 20150131235
    Abstract: There are provided an electronic component module in which an external terminal is disposed outwardly from a mold part by a plating process and a manufacturing method thereof. The electronic component module includes a substrate, at least one electronic component mounted on the substrate, a mold part sealing the electronic component, and at least one connection conductor having one end bonded to one surface of the substrate and formed in the mold part so as to penetrate through the mold part. The connection conductor is formed to have a form in which horizontal cross-sectional areas of the connection conductor are gradually reduced toward the substrate and includes at least one step.
    Type: Application
    Filed: April 24, 2014
    Publication date: May 14, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Do Jae YOO, Eun Jung JO, Jae Hyun LIM
  • Patent number: 9023269
    Abstract: A method for producing a resin molding die (13) for molding a first substrate (2) having a flow path (2b) and a through-hole (2a), wherein a base die (10) having a concave part (10b) corresponding to the flow path (2b) and a through-hole (10a) corresponding to through-hole (2a) and deeper than the concave part (10b) is prepared, the base die (10) is subjected to electroforming with a first material and is then subjected to electroforming with a second material which is different from the first material, and a protruding part for forming through-hole (10a) by removing the first material that was electrodeposited on through-hole (10a) is formed. The first material has a smaller electroforming stress than the second material, the first material exerts a higher adhesiveness with regard to the base die than the second material, and the second material is harder than the first material.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: May 5, 2015
    Assignee: Konica Minolta, Inc.
    Inventor: Takehiko Goshima
  • Publication number: 20150108000
    Abstract: A method of duplicating the nano-pattern of the surface of an object is disclosed A method of duplicating the nano-pattern of the surface of an object comprises: selecting the object having the nano-pattern texture to be duplicated; disposing the selected object and pretreating a surface of the object by washing, drying and then forming a nano-thin film thereto to block transfer of impurities so as to facilitate separation of a nano-imprint mold; nano-imprinting the surface of the object, thus duplicating it on a plastic mold; metallizing a surface of the plastic mold and performing first electroforming of the plastic mold, thus manufacturing metal module master molds; preparing a standard pattern by scanning the surface of the object to achieve an two-dimensional image and three-dimensional depth information and determine a part of a scanned image of the surface of the object as the standard pattern; connecting the metal module master molds to each other through welding thus producing a large-area metal m
    Type: Application
    Filed: December 24, 2014
    Publication date: April 23, 2015
    Inventors: Kyung Wook LEE, Kyung Yul LEE, Jun Sang JEONG
  • Publication number: 20150028325
    Abstract: A mold for transferring a fine pattern, suitable for producing a substrate having a concave-convex structure such as a diffraction grating, can be provided by a simple process and with a high throughput. A method for producing a mold for transferring a fine pattern includes: a step of coating a surface of a base member with a solution containing a block copolymer and polyalkylene oxide; a solvent phase-separation step of phase-separating the block copolymer under a presence of vapor of an organic solvent so as to obtain a block copolymer film of the block copolymer, the block copolymer film having a concave-convex structure on a surface thereof and a horizontal cylinder structure in an interior thereof; a step of stacking a metal layer by electroforming; and a step of releasing the base member having the concave-convex structure formed thereon from the metal layer.
    Type: Application
    Filed: October 14, 2014
    Publication date: January 29, 2015
    Inventors: Takashi SEKI, Satoshi MASUYAMA, Maki FUKUDA, Suzushi NISHIMURA
  • Publication number: 20150004438
    Abstract: According to one embodiment, there is provided a method for forming a pattern including forming an island-like metal underlayer comprised of a first metal, a phase-separated release layer including a first metal, a second metal, and a metal oxide, a mask layer, and a resist layer on a processed layer in this order, forming a concave-convex pattern on the resist layer, transferring the pattern to the mask layer, the phase-separated release layer, and the processed layer in this order, dissolving the phase-separated release layer using a peeling liquid for dissolving the first metal and the second metal, and removing the mask layer from the processed layer to expose the concave-convex pattern.
    Type: Application
    Filed: October 22, 2013
    Publication date: January 1, 2015
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Kazutaka Takizawa, Akira Watanabe, Kaori Kimura, Takeshi Iwasaki, Akihiko Takeo
  • Publication number: 20140311911
    Abstract: A multi-stage transfer mold manufacturing method that can save labor in a step of connecting by a multi-stage connection, a multi-stage transfer mold manufactured thereby, and a component produced thereby are provided for production of a multi-stage component by electroplating. A method therefor includes the steps of forming a resist pattern having a shape of a component with a desired aspect ratio on a metal substrate, a sidewall of the resist pattern forming a desired angle, forming, on the resist pattern, a resist pattern having a shape and a thickness of a connection pillar for connecting with an upper layer, creating a transfer mold by filling up the resist pattern on which the resist pattern having the shape of the connection pillar by electroplating to a predetermined thickness, and providing a master mold by separating the transfer mold from the metal substrate.
    Type: Application
    Filed: November 15, 2011
    Publication date: October 23, 2014
    Inventors: Takashi Sano, Tokinori Terada
  • Publication number: 20140291157
    Abstract: A transfer mold, which has superior durability and high aspect ratio, for production of a component by electroplating and a component produced thereby are provided. A method therefor includes the steps of forming a resist pattern having a shape of a component with a desired aspect ratio on a metal substrate, a sidewall of the resist pattern forming a desired angle, creating a transfer mold by filing up the resist pattern having the shape of the component by electroplating to a predetermined thickness and providing a master mold by separating the transfer mold from the metal substrate.
    Type: Application
    Filed: November 15, 2011
    Publication date: October 2, 2014
    Applicant: LEAP Co.., Ltd.
    Inventors: Takashi Sano, Tokinori Terada
  • Publication number: 20140248513
    Abstract: According to one embodiment, there is provided a method for producing a magnetic recording medium which includes forming a mask layer on a magnetic recording layer, applying metal fine particles on the mask layer, covering the metal fine particles with an overcoat layer, irradiating with energy beams through the overcoat layer so as to deactivate a protective coating of the metal fine particles, transferring a metal fine particle pattern from the mask layer to the magnetic recording layer, and removing the mask layer from the magnetic recording layer.
    Type: Application
    Filed: July 12, 2013
    Publication date: September 4, 2014
    Inventors: Kazutaka Takizawa, Akira Watanabe, Kaori Kimura, Tsuyoshi Onitsuka, Takeshi Iwasaki, Akihiko Takeo
  • Publication number: 20140202869
    Abstract: A method for manufacturing a molding core includes: providing a cylindrical roller having a circumference surface coated with a first film layer; coating a second film layer on the first film layer; coating a preprocessed molding film on the second film layer; engraving a number of molding patterns on the preprocessed molding film to obtain a molding film; separating the molding film from the roller and spreading out the molding film to be a flat plate; and manufacturing the molding core using the molding film by electroforming method.
    Type: Application
    Filed: July 29, 2013
    Publication date: July 24, 2014
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: CHIA-LING HSU
  • Patent number: 8758589
    Abstract: An antireflection film of the present invention includes a plurality of first raised portions, each of which has a two-dimensional size of not less than 1 ?m and less than 100 ?m when seen in a direction normal to the film, and a plurality of second raised portions, each of which has a two-dimensional size of not less than 10 nm and less than 500 nm when seen in a direction normal to the film. In at least one embodiment, the antireflection film has a first surface shape or a second surface shape that is inverse to the first surface shape relative to a film surface. In the first surface shape, the second raised portions are provided on the first raised portions and between the plurality of first raised portions, and the elevation angle ? of a surface of the first raised portions relative to the film surface is about 90° or more. The antireflection film of the present invention has a more excellent antiglare function than conventional ones.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: June 24, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hidekazu Hayashi, Tokio Taguchi, Akiyoshi Fujii, Nobuaki Yamada
  • Publication number: 20140027293
    Abstract: A system, and corresponding method for use, for providing a mass-producible retroreflective material, or sheeting, featuring full cube corner pins is presented. The full cube corner shaping may be provided with the use of a diamond turning tool. The diamond turning tool may be used to simultaneously manufacture a number of pins. The pins may be used to form a mold featuring a triangular or full cube corner surface formation.
    Type: Application
    Filed: March 14, 2013
    Publication date: January 30, 2014
    Applicant: Orafol Americas Inc.
    Inventor: Xiao Jing Lu
  • Publication number: 20130341834
    Abstract: A method for producing a resin molding die (13) for molding a first substrate (2) having a flow path (2b) and a through-hole (2a), wherein a base die (10) having a concave part (10b) corresponding to the flow path (2b) and a through-hole (10a) corresponding to through-hole (2a) and deeper than the concave part (10b) is prepared, the base die (10) is subjected to electroforming with a first material and is then subjected to electroforming with a second material which is different from the first material, and a protruding part for forming through-hole (10a) by removing the first material that was electrodeposited on through-hole (10a) is formed. The first material has a smaller electroforming stress than the second material, the first material exerts a higher adhesiveness with regard to the base die than the second material, and the second material is harder than the first material.
    Type: Application
    Filed: February 24, 2012
    Publication date: December 26, 2013
    Applicant: KONICA MINOLTA, INC.
    Inventor: Takehiko Goshima
  • Publication number: 20130327741
    Abstract: A method for producing an alumina template of nanorods, the alumina template, and the nanorods are provided for overcoming the problems of the conventional alumina template having anodic aluminum oxide that may be peeled off from a substrate or forming a non-conductive oxide easily, and the alumina template includes a conductive substrate composed of an active metal and an inert metal, so that the alumina template can be attached onto the active metal and inert metal at the same time, and the active metal can be used for securing the alumina template and supporting the alumina template on the inert metal, and the anodic aluminum oxide attached onto the inert metal can be used for providing a better conductivity, such that a stable and highly conductive alumina template can be produced.
    Type: Application
    Filed: August 9, 2013
    Publication date: December 12, 2013
    Applicant: SOUTHERN TAIWAN UNIVERSITY
    Inventors: Hsyi-En CHENG, Bo-Jiun YEH
  • Publication number: 20130299796
    Abstract: A method for producing a mold includes: applying a block copolymer solution made of first and second polymers on a base member; performing a first annealing process at a temperature higher than Tg of the block copolymer after drying the coating film; forming a concavity and convexity structure on the base member by removing the second polymer by an etching process; performing a second annealing process of the concavity and convexity structure at a temperature higher than Tg of the first polymer; forming a seed layer on the structure; laminating or stacking a metal layer on the seed layer by an electroforming; and peeling off the metal layer from the base member. The second annealing process enables satisfactory transfer of a concavity and convexity structure on the base member onto the metal layer.
    Type: Application
    Filed: July 10, 2013
    Publication date: November 14, 2013
    Inventors: Satoshi MASUYAMA, Madoka TAKAHASHI, Suzushi NISHIMURA, Maki FUKUDA, Takashi SEKI
  • Publication number: 20130292052
    Abstract: The disclosure relates to a method for manufacturing a photoaligning integrated large area metallic stamp, which includes the following steps: making a unit device PLC mold pattern, and molding a unit PLC device pattern through a multistep imprinting method using the PLC mold pattern; heat treating the unit PLC device pattern to minimize scattering loss due to surface roughness; making a groove pattern for supporting an optical fiber; making an integrated PDMS mold for a unit device by aligning the unit PLC device pattern and the groove pattern; and repeatedly replicating the integrated PDMS mold for a unit device to make a large area PDMS pattern, and making a large area stamp through electroforming using the large area PDMS pattern.
    Type: Application
    Filed: February 22, 2011
    Publication date: November 7, 2013
    Applicant: Pusan National University Industry-University Cooperation Foundation
    Inventors: Myung Yung Jeong, Seung Hun Oh, Jin Hwa Ryu, Sang Uk Cho, Tae Ho Lee
  • Patent number: 8574469
    Abstract: A processing method for a mold (1) to form a pattern of recessed portions (13) on a product forming surface (11) formed on the mold (1) includes a photoresist forming step in which a thermally deformable heat-mode photoresist layer (12) is formed on the product forming surface (11), a laser beam illumination step in which a laser beam is applied to the photoresist layer (12) by an exposure device incorporating a semiconductor laser to form a pattern of recessed portions (13), and an asperity forming step in which asperities are formed on the product forming surface (11) by making use of the pattern of recessed portions (13).
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: November 5, 2013
    Assignee: FUJIFILM Corporation
    Inventor: Yoshihisa Usami
  • Patent number: 8563226
    Abstract: The invention relates to a method (3) of fabricating a mold (39, 39?) including the following steps: (a) depositing (9) an electrically conductive layer on the top (20) and bottom (22) of a wafer (21) made of silicon-based material; (b) securing (13) the wafer to a substrate (23) using an adhesive layer; (c) removing (15) one part (26) of the conductive layer from the top of the wafer (21); and (d) etching (17) the wafer as far as the bottom conductive layer (22) thereof in the shape (26) of the one part removed from the top conductive layer (22) to form at least one cavity (25) in the mold. The invention concerns the field of micromechanical parts, particularly, for timepiece movements.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: October 22, 2013
    Assignee: Nivarox-FAR S.A.
    Inventors: Pierre Cusin, Clare Golfier, Jean-Philippe Thiebaud
  • Publication number: 20130234364
    Abstract: A method is provided for mastering optically variable devices (OVDs) used to authenticate optical discs. The method generally includes the steps of providing a laser beam recorder (LBR), introducing a substrate to the LBR, and exposing a portion of the substrate to the LBR, The mastering system thus includes the LBR, which has a laser that emits a beam, a processor or computer for programming or otherwise controlling the beam in order to expose the substrate and create the desired optical effect. Depending on the material used for the substrate, the exposure is then developed, if necessary, and processed to generate a master for the OVD. The OVD can then be replicated in order to provide authentic resultant products or articles, such as optical discs.
    Type: Application
    Filed: April 23, 2013
    Publication date: September 12, 2013
    Applicant: 3dcd, LLC
    Inventors: NIGEL C. ABRAHAM, Holger HOFMANN, Raymond L. KEATING
  • Publication number: 20130200541
    Abstract: The invention relates to a stamper in which an oxide film having a fine concave-convex structure made up of a plurality of fine pores having an aspect ratio represented by [the depth of the fine pores/the average interval between the fine pores] of 1 to 4 is formed on the surface of an aluminum base material which is made of aluminum having a content of Ti of 150 ppm to 500 ppm, a content of B or C of 1 ppm to 50 ppm and a purity of 99.9% or more. According to the invention, it is possible to provide a low-cost stamper in which the emergence of a pattern derived from the traces of crystal grains on the surface of the oxide film is suppressed, an article having a favorable appearance, which is manufactured using the above stamper, and a method for manufacturing the above.
    Type: Application
    Filed: September 28, 2011
    Publication date: August 8, 2013
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Hiroaki Kita, Kota Shirai, Katsuhiro Kojima
  • Publication number: 20130192992
    Abstract: An article is provided, the article including a substrate having a surface, a nano-structure array formed on the substrate, the nano-structure array including a plurality of nano-structures extending from the surface of the substrate, and a cover layer formed on and around the nano-structures to anchor the cover layer to the substrate.
    Type: Application
    Filed: October 21, 2010
    Publication date: August 1, 2013
    Inventors: Peter Mardilovich, Anthony M. Fuller, Qingqiao Wei
  • Publication number: 20130189497
    Abstract: Nano-scale structures are provided wherein nano-structures are formed on a substrate surface and a base material is applied between the nano-structures.
    Type: Application
    Filed: October 13, 2011
    Publication date: July 25, 2013
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Peter Mardilovich, Qingqiao Wei, Anthony M. Fuller
  • Patent number: 8470154
    Abstract: The method of fabricating metal microstructures includes the following steps: a) taking a substrate that has a conductive strike surface; b) to d) forming a first resin mould by UV photolithography, the apertures in the first resin mould revealing the conductive strike surface of the substrate; e) electroforming the first element by galvanic deposition of a first metal material in the apertures of the first resin mould, f) removing the first mould around the first element to expose the conductive strike surface of the substrate; g) to i) forming a new resin mould by UV photolithography, the apertures in the new resin mould revealing the first element, and the conductive strike surface of the substrate; j) electroforming the second element by galvanic deposition of a second metal material in the apertures of the new resin mould to form said metal microstructure; k) separating said metal microstructure from the substrate and from said new mould.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: June 25, 2013
    Assignee: Nivarox-FAR S.A.
    Inventor: Gilles Rey-Mermet
  • Patent number: 8465639
    Abstract: A system, and corresponding method for use, for providing a mass-producible retroreflective material, or sheeting, featuring full cube corner pins is presented. The full cube corner shaping may be provided with the use of a diamond turning tool. The diamond turning tool may be used to simultaneously manufacture a number of pins. The pins may be used to form a mold featuring a triangular or full cube corner surface formation.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: June 18, 2013
    Assignee: ORAFOL Americas Inc.
    Inventor: Xiao-Jing Lu
  • Patent number: 8431004
    Abstract: A method for making a stamper which has an uneven surface pattern, in which unit structures are arranged in x and y directions at respective periods that are both shorter than the shortest wavelength of an incoming light ray, on the surface of a substrate and satisfies the following Inequality (1): ? ? ? x , y ? min < 1 ni + ni · sin ? ? ? ? ? i max ( 1 ) where ?min is the shortest wavelength of the incoming light ray, ?imax is the largest angle of incidence of the incoming light ray, ni is the refractive index of an incidence medium, ?x is the period of the uneven surface pattern in the x direction, and ?y is the period of the pattern in the y direction. As a result, diffraction of short-wave light components can be reduced in a broad wavelength range.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: April 30, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tokio Taguchi, Shun Ueki, Kozo Nakamura, Kazuhiko Tsuda
  • Patent number: 8403659
    Abstract: An electroformed tooling device is disclosed. The device includes an electroformed tool with electrodeposited metal which has been plated from a structured substrate on a molding side to function as a molding surface and an uneven contour on a non-molding side of the electroformed tool left as a by-product of electroforming. The device also includes a blank base comprising a top surface, a network of thermal management channels, and at least a first opening and a second opening communicating with the network of thermal management channels to allow fluid to flow into the first opening and flow through the network of thermal management channels and flow out the second opening. The top surface further includes an electro-discharge machined contoured surface to mate with the uneven contour on the non-molding side of the electroformed tool. Fluid flowing through the thermal management channels cools or alternately cools and heats the electroformed tool.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: March 26, 2013
    Inventor: Robert E. Szokolay
  • Publication number: 20130052294
    Abstract: A method of making a molding tool includes: preparing an imprinting master having a surface relief pattern; applying a curable material on a flexible film; embossing the curable material on the flexible film using the imprinting master so as to transfer the surface relief pattern to the curable material; curing the embossed curable material so as to form a patterned-and-cured material; attaching and conforming the flexible film to a non-planar surface of a model; forming a thin metal film over the patterned-and-cured material; electroforming a metal layer over the thin metal film so as to form a molding tool of the metal layer; and removing the molding tool from the thin metal film.
    Type: Application
    Filed: March 30, 2011
    Publication date: February 28, 2013
    Applicant: TAIWAN GREEN POINT ENTERPRISES CO., LTD.
    Inventors: Shaupoh Wang, Ray Long Tsai, Tung Chuan Chen, Pei Shan Hsieh, Hui Mei Chang, Shih Tsung Chang
  • Publication number: 20130048502
    Abstract: For forming a nickel mold, a metal and a corresponding etchant are selected such that the etchant selectively etches the metal over nickel. The metal is sputtered onto a surface of a template having nano-structures to form a sacrificial layer covering the nano-structures. Nickel is electroplated onto the sacrificial layer to form a nickel mold, but leaving a portion of the sacrificial layer exposed. The sacrificial layer is contacted with the etchant through the exposed portion of the sacrificial layer to etch away the sacrificial layer until the nickel mold is separated from the template. Subsequently, the nickel mold may be replicated or scaled-up to produce a replicate mold by electroplating, where the replicate mold has nano-structures that match the nano-structures on the template. The metal may be copper.
    Type: Application
    Filed: August 23, 2012
    Publication date: February 28, 2013
    Applicant: Agency for Science, Technology and Research
    Inventors: Kambiz Ansari, Christina Yuan Ling Tan, Yee Chong Loke, Jarrett Dumond, Isabel Rodriguez
  • Patent number: 8372253
    Abstract: According to one embodiment, patterns of protrusions and recesses includes a substrate including a conductive region on at least one major surface, and a projecting pattern layer formed on the conductive region on the major surface, and made of a microcrystalline material, a polycrystalline material, an amorphous material, or an oxide of the microcrystalline, polycrystalline, or amorphous material.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: February 12, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Satoshi Shirotori, Yoshiyuki Kamata, Takuya Shimada, Masatoshi Sakurai
  • Patent number: 8349163
    Abstract: According to one embodiment, an electroforming master comprises a patterns of protrusions and recesses formed on one major surface of an Si substrate having two major surfaces, corresponding to information for positioning of a read/write head (a preamble, address, and burst), recording tracks or recording bits. Impurity ions are doped in the surface of this patterns of protrusions and recesses. The impurity ion concentration distribution in the film thickness direction of the Si substrate has a peak in a portion from the patterns of protrusions and recesses surface to a depth of 40 nm in the film thickness direction. The impurity concentration of this peak is 1×1020 to 2×1021 ions/cm3.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: January 8, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Satoshi Shirotori, Akira Watanabe, Yoshiyuki Kamata, Masatoshi Sakurai
  • Patent number: 8329069
    Abstract: A motheye mold fabrication method of at least one embodiment of the present invention includes the steps of: (a) preparing an Al base in which an Al content is less than 99.99 mass %; (b) partially anodizing the Al base to form a porous alumina layer which has a plurality of very small recessed portions; (c) after step (b), allowing the porous alumina layer to be in contact with an etchant which contains an anodic inhibitor, thereby enlarging the plurality of very small recessed portions of the porous alumina layer; and (d) after step (c), further anodizing the Al base to grow the plurality of very small recessed portions.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: December 11, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Ichiro Ihara
  • Publication number: 20120282442
    Abstract: There are provided a mold manufacture method capable of easily manufacturing a mold having a nanosized fine structure, and a mold obtained using such method. The mold manufacture method includes: a step of forming a self-assembled film 2 on an inorganic thin film 1 having the fine structure, the self-assembled film 2 being composed of a silane coupling agent having a functional group including at least one of an amino group, a mercapto group, a thiol group, a disulfide group, a cyano group, a halogen group and a sulfonic acid group; a conductive layer formation step of forming a conductive layer 3 on the self-assembled film 2; and a step of forming a metal film 4 on the conductive layer 3 through electroplating.
    Type: Application
    Filed: June 28, 2012
    Publication date: November 8, 2012
    Applicant: Waseda University
    Inventors: Takayuki Homma, Mikiko Saito
  • Publication number: 20120255863
    Abstract: A system and method to form beam tunnels in interaction circuits. Forms, such as fibers or sheets can be located and secured above a substrate at a desired size and desired shape to form the final shape of the beam tunnels. Fiber holders can be utilized to position the forms above the substrate. A photoresist can then be applied over the substrate embedding the forms. A single exposure LIGA process can be performed on the photoresist, including the steps of ultraviolet photolithography, molding, and electroforming. After the process, the forms can be removed to leave the beam tunnels in the interaction circuits.
    Type: Application
    Filed: March 15, 2012
    Publication date: October 11, 2012
    Inventor: Colin D. Joye
  • Publication number: 20120247964
    Abstract: Disclosed is a microfluidic control device which may electrochemically and simply measure the value of glycosylated hemoglobin in blood on a chip, a method for manufacturing the same, and a method for operating the same.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 4, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Dae Sik LEE, Moon Youn Jung, Seung Hwan Kim
  • Publication number: 20120219759
    Abstract: A micro structure which is preferred as an original plate of an antireflection, a mold of nano imprint or injection molding is obtained by a single particle film etching mask on which each particle is precisely aligned and closest packed in two dimensions. A single particle film etching mask is produced by a drip step wherein a dispersed liquid in which particles dispersed in a solvent are dripped onto a liquid surface of a water tank, a single particle film formation step in which a single particle film which consists of the particles by volatizing a solvent is formed, and a transfer step in which the single particle film is transferred to a substrate. The single particle film etching mask on which particles are closest packed in two dimensions, has a misalignment D(%) of an array of the particles that is defined by D(%)=|B?A|×100/A being less than or equal to 10%. However, A is the average diameter of the particles, and B is the average pitch between the particles in the single particle film.
    Type: Application
    Filed: May 9, 2012
    Publication date: August 30, 2012
    Applicant: OLI PAPER CO., LTD.
    Inventor: Kei Shinotsuka
  • Patent number: 8241479
    Abstract: A variety of deep structured decorative patterns originate with mechanical relief or etching. The present method incorporates a deeply patterned or textured etching or relief into a thin film embossing shim to simulate the look of the deep pattern or texture when used to emboss thin film or material. A transparent mold of the relief surface (such as brushed metal, engine-turned patterns, and textured glass) is formed using UV curable liquid and a transparent substrate. The relief copy in the transparent mold or overlay is mapped onto a photoresist surface or plate by shining or expanding one or more laser lights or laser beams through the transparent mold. The different heights of the relief copy of the transparent mold will cause the light to diffract/refract to form a corresponding patterned etching in the photoresist plate. The resulting photoresist plate is then metalized and electroplated to form a thin film embossing shim.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: August 14, 2012
    Assignee: Illinois Tool Works Inc.
    Inventors: Louis M. Spoto, Dean J. Randazzo, Matt Deschner
  • Publication number: 20120126038
    Abstract: Nozzle and a method of making the same are disclosed.
    Type: Application
    Filed: July 29, 2010
    Publication date: May 24, 2012
    Inventors: Barry S. Carpenter, Jaime B. Willoughby, Jennifer J. Sahlin
  • Publication number: 20120024709
    Abstract: Disclosed are a porous electroformed shell for forming a grain pattern and a manufacturing method thereof. The method includes the step of causing an epoxy mandrel to be conductive by formation of a conductive thin film thereon; transferring a non-conductive masking pattern on the conductive thin film by using a masking film; generating and growing a fine pore at the position of the non-conductive masking pattern through electroforming; and demolding an electrodeposited layer having the fine pore from the epoxy mandrel, Through the disclosed method, precise control, both as a whole or in part, on a diameter, a formation position, and a density of a fine pore can be simply, economically, and efficiently can be carried out according to various curved shapes of the electroformed shell.
    Type: Application
    Filed: July 28, 2010
    Publication date: February 2, 2012
    Inventors: Kie-Moon Sung, Man-Jae Weon, Kyung-Ho Lee, Young-Min Park
  • Publication number: 20110318533
    Abstract: Provided is a method of duplicating a nano-pattern texture of the surface of an object through electroforming using an imprint mold, including selecting the object having the surface texture to be duplicated; disposing the selected object and pre-treating the surface thereof; nano-imprinting the surface of the pretreated object, thus duplicating it on a plastic mold; metalizing the surface of the plastic mold through vapor deposition, and performing electroforming, thus manufacturing metal module master molds; trimming the edges of the metal module master molds, performing micro-processing, connecting the metal module master molds, and then performing electroforming, thus manufacturing a large-area metal unit master mold; and electroforming the metal unit master mold, thus producing a duplicate having the surface texture, thus exhibiting an effect in which the skin of a selected natural object can be duplicated on metal having a uniform thickness.
    Type: Application
    Filed: September 7, 2011
    Publication date: December 29, 2011
    Applicant: EMOT CO., LTD.
    Inventors: Kyung Wook LEE, Kyung Yul LEE, Jun Sang JEONG, Soo Han KIM
  • Publication number: 20110290760
    Abstract: A method for producing plastic shell includes following steps. Provide a male mold and a female mold, then chemically etching a first texture on a surface of the female mold. Form a second texture on the surface of the female mold. Produce a plastic shell with various types of textures using the male mold and the female mold.
    Type: Application
    Filed: October 21, 2010
    Publication date: December 1, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: YUN-LUNG CHEN
  • Patent number: 8038863
    Abstract: A stamper having a patterned layer composed of a hard material and a compressible material back plane layer. The back plane layer may be composed of an elastomer. The stamper may be used to imprint an embossable layer disposed above a substrate for the production of a magnetic recording disk.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: October 18, 2011
    Assignee: WD Media, Inc.
    Inventor: Andrew M. Homola
  • Publication number: 20110233063
    Abstract: A mold is fabricated with a cavity formed in an insulating layer formed so as to be placed on an upper surface of a conductive base material. This mold is disposed in an electrolyte bath to be applied with a voltage, and a metal is electrodeposited on the bottom surface of the cavity to electroform a metal-formed product in the cavity. In this electrodepositing process, when the width of the cavity is taken as W and a vertical height of a head space between an upper opening of the cavity and an upper surface of a metal layer is taken as H, the growth of the metal layer is stopped so that the height H of the head space left above the metal layer satisfies: H?W/2.85 where 300 ?m?W; H?W/3.75 where 200 ?m?W<300 ?m; H?W/4 where 100 ?m?W<200 ?m; and H?W/10 where W<100 ?m.
    Type: Application
    Filed: September 11, 2009
    Publication date: September 29, 2011
    Applicant: OMRON Corporation
    Inventors: Kazumasa Seki, Akihiko Hatamura, Hitoshi Yoshida, Toshio Yamashita, Yasuhiro Miura
  • Patent number: 8025782
    Abstract: The invention relates to a process for fabricating a monolayer or multilayer metal structure in LIGA technology, in which a photoresist layer is deposited on a flat metal substrate, a photoresist mold is created by irradiation or electron or ion bombardment, a metal or alloy is electroplated in this mold, the electroformed metal structure is detached from the substrate and the photoresist is separated from this metal structure, wherein the metal substrate is used as an agent involved in the forming of at least one surface of the metal structure other than that formed by the plane surface of the substrate.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: September 27, 2011
    Assignee: Doniar SA
    Inventor: Clément Saucy