Between Separately Formed Webs Patents (Class 162/104)
  • Patent number: 10327075
    Abstract: A method is provided for manufacturing a speaker diaphragm manufactured using a sheet material made of magnesium or magnesium alloy and including an annular cone portion along an outer peripheral edge of a dome portion. The method includes a dome preformation process of forming a dome preformation portion; a cone preformation process of forming an annular cone preformation portion; and a shaping process of shaping the dome preformation portion into the dome portion by pressing, shaping the cone preformation portion into the cone portion whose outer peripheral end at least extends to a substantially identical height position to a maximum protrusion position of the dome portion, and forming, along a boundary portion between the dome portion and the cone portion, an annular step portion to which a voice coil bobbin is attached.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: June 18, 2019
    Assignee: Onkyo Corporation
    Inventors: Takeshi Fujitani, Nanayo Suzuki, Shinjiro Kato, Tomoyuki Suzuki
  • Patent number: 8409705
    Abstract: Fibers having a plurality of colored regions printed on front and rear sides of said fiber are disclosed, wherein the colors are visible only under ultra-violet light. The regions may be in the form of stripes or may be arranged in a pseudo-random pattern. The regions may be differently colored. Such fibers can be incorporated into paper products as a form of counterfeit protection.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: April 2, 2013
    Assignee: D.W. Spinks (Embossing) Ltd.
    Inventor: Gary D Spinks
  • Patent number: 8158253
    Abstract: Fibers (2, 14) having a plurality of colored regions printed on front and rear sides of said fiber are disclosed, wherein the colors are visible only under ultra-violet light. The regions may be in the form of stripes (4, 6, 8, 10 and 12) or may be arranged is a pseudo-random pattern (16, 18, 20, 22, 24). The regions may be differently colored. Such fibers can be incorporated into paper products as a form of counterfeit protection.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: April 17, 2012
    Assignee: D W Spinks (Embossing) Ltd.
    Inventor: Gary D. Spinks
  • Patent number: 7816002
    Abstract: A recording paper contains a pulp fiber and a magnetic fiber having a large Barkhausen effect. The fiber orientation ratio of this recording paper by an ultrasonic propagation velocity method is in a range of more than 1.3 to less than 1.8, and the degree of shrinkage in an MD thereof is 0.25% or less.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: October 19, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tsukasa Matsuda, Eizo Kurihara, Mario Fuse, Shoji Yamaguchi, Kunihiro Takahashi, Tomofumi Tokiyoshi
  • Publication number: 20100126681
    Abstract: Paper embedded with a semiconductor device capable of communicating wirelessly is realized, whose unevenness of a portion including the semiconductor device does not stand out and the paper is thin with a thickness of less than or equal to 130 ?m. A semiconductor device is provided with a circuit portion and an antenna, and the circuit portion includes a thin film transistor. The circuit portion and the antenna are separated from a substrate used during manufacturing, and are interposed between a flexible base and a sealing layer and protected. The semiconductor device can be bent, and the thickness of the semiconductor device itself is less than or equal to 30 ?m. The semiconductor device is embedded in a paper in a papermaking process.
    Type: Application
    Filed: January 27, 2010
    Publication date: May 27, 2010
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshitaka DOZEN, Tomoyuki AOKI, Hidekazu TAKAHASHI, Daiki YAMADA, Kaori OGITA, Naoto KUSUMOTO
  • Patent number: 7632380
    Abstract: The present invention relates to an article formed from at least one ply of fibrous material comprising at least one region of zero thickness, characterized in that said region is covered on at least one of its faces with an at least partly transparent or translucent structure placed so as to reveal a transparent or translucent window in the paper.
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: December 15, 2009
    Assignee: Arjowiggins Security
    Inventor: Pierre Doublet
  • Patent number: 7422660
    Abstract: Method of producing a nonwoven material, includes forming a web of continuous filaments on a forming member (12) and applying a wet- or foam formed fiber dispersion containing natural fibers and/or synthetic staple fibers on top of the continuous filaments. A fibrous web is thus formed containing continuous filaments and natural fibers and/or synthetic staple fibers, this web subsequently being hydroentangled to form a nonwoven material. Moisture is applied to the web of continuous filaments under a low pressure before laying the wet- or foam formed fiber dispersion on the web of continuous filaments, avoiding any substantial bonding between the filaments in the web.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: September 9, 2008
    Assignee: SCA Hygiene Products AB
    Inventors: Tomas Billgren, Mats Soderberg, Mees Versteeg, Hein Lindstedt
  • Publication number: 20080006378
    Abstract: A multi-ply paper tissue includes at least one ply formed of LDPE/HDPE. The LDPE/HDPE ply is thermally bonded to the other ply or plys of the tissue.
    Type: Application
    Filed: July 6, 2006
    Publication date: January 10, 2008
    Inventor: Antonio N. Maciel
  • Patent number: 6402888
    Abstract: A method for making a paper sheet comprising at least one region which is thinner than the rest of the sheet. According to the method, a first paper layer (3) is formed on a wire in a first wet end of a paper-making machine, a second paper layer (5) is formed on a wire in a second wet end of the paper-making machine, one of the two paper layers has a number of localized tinner regions (8) so that the thickness (e2) of said paper layers in said regions is up to 50% less than the thickness (et) of the rest of the sheet, and the two layers are joined together and dried. The resulting paper may be used in banknotes or checks.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: June 11, 2002
    Assignee: Arjo Wiggins
    Inventors: Pierre Doublet, Yves Douesneau, Jean-Paul Menez
  • Patent number: 5783275
    Abstract: An antifalsification paper is described having an embedded safeguarding thread which is embedded in the paper so as to be freely accessible in some areas. The safeguarding thread has a width greater than 2 mm. The antifalsification paper comprises at least two paper layers produced on separate paper machines. The safeguarding thread is embedded in the first paper layer which has openings or recesses in its surface through which the thread is partly accessible on both sides. This first paper layer is covered with at least one second paper layer and firmly connected therewith, the second paper layer having a thickness of 10 to 50%, preferably 20%, of the total thickness of the antifalsification paper. The use of particularly wide safeguarding threads and the resulting possibility of equipping the threads with certain optical effects can improve the resistance to forgery of the antifalsification paper provided therewith.
    Type: Grant
    Filed: July 13, 1995
    Date of Patent: July 21, 1998
    Assignee: Giesecke & Devrient GmbH
    Inventors: Hajo Muck, Siegfried Harms
  • Patent number: 5573639
    Abstract: The invention relates to an antifalsification paper having a security element in the form of a thread or band which consists of a transparent plastic film with an at least partly opaque coating. The security element has at least a first opaque coating and a transparent area bordering on this opaque coating, and information extending from the first opaque coating into the transparent area.
    Type: Grant
    Filed: December 16, 1994
    Date of Patent: November 12, 1996
    Assignee: Giesecke & Devrient GmbH
    Inventors: Christian Schmitz, Armin Weingartner
  • Patent number: 5002636
    Abstract: A metallized plastic strip containing security indicia is incorporated within within currency paper to deter counterfeiting. The plastic strip is made difficult to detect under reflected light by selective pigmentation to match the currency inks. The presence of the security indicia is verified by detection under transmitted light.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: March 26, 1991
    Inventor: Timothy T. Crane
  • Patent number: 4291781
    Abstract: A diaphragm for a speaker which is prepared by heating a conjugated sheet obtained by paper-making polyethylene short fibers with other short fibers which have a high modulus of elasticity, such as carbon fiber, to melt and solidify polyethylene short fibers in the conjugated sheet; the process for the production thereof. The diaphragm for a speaker of the invention has a high modulus of elasticity and a high internal loss and a speaker prepared with such a diaphragm has the advantage of having a wider reproducing frequency response and lower distortion. Furthermore, the process for production of the invention possesses another advantage in that diaphragms for speakers can be produced in a continuous process of successively pressing out the speaker diaphragm with a cold mold press.
    Type: Grant
    Filed: October 16, 1979
    Date of Patent: September 29, 1981
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hirotoshi Niguchi, Mitsuru Ieki
  • Patent number: 4102736
    Abstract: A process of preparing an inside-to-outside flow filter tube, which process comprises dispersing a plurality of glass fibers in water to form a water slurry of the fibers, the glass fibers having a diameter range of from about 0.001 to 10 microns; forming a filter tube comprising a wet mat of the glass fibers from the water slurry on a cylidrical mandrel; during the forming of the wet mat of fibers into a filter tube, incorporating an open-scrim, reinforcing sheet material within the internal wall thickness of the wet mat of fibers forming the filter tube, the sheet material extending generally the length of the filter tube and at least about 11/2 revolutions of the filter tube diameter; drying the filter tube containing the scrim sheet material within the filter tube wall; bonding the dried filter tube with a bonding agent at the junction of the glass fiber crossover points and with and through the scrim sheet material; and recovering an integral filter tube having a high burst strength.
    Type: Grant
    Filed: June 3, 1977
    Date of Patent: July 25, 1978
    Assignee: Whatman Reeve Angel Limited
    Inventors: Brian Arthur Head, Philip C. Kimball
  • Patent number: 4048008
    Abstract: A technique for forming single or multi-layer sheets of fibrous material having a controllable fiber distribution is described. A pair of spraying rollers each having a system of circumferentially spaced radial vanes on its surface are supported within the upper portion of a working zone defined between a pair of continually advancing, downwardly converging sieves that are disposed symmetrical to a longitudinal axis. The rollers are rotated in respectively opposite directions to intercept at least one fibrous suspension downwardly directed into the working zone, and to thereafter propel the intercepted liquid outwardly and downwardly toward the sides of the working zone in symmetrical fashion. The fibrous layers thus built up on the advancing sieves converge into the final sheet in the lower portion of the working zone. Separate facilities are associated with the upper and lower portions of the working zone for drawing liquid from the formed layers outwardly through the sieves.
    Type: Grant
    Filed: February 13, 1976
    Date of Patent: September 13, 1977
    Assignee: Slovenska Vysoka Skola Technicka
    Inventors: Michal Skrabak, Ernest Vavrik, Stanislav Kolarik, Milos Mazak
  • Patent number: 3954554
    Abstract: A method and apparatus for making a multi-ply paper sheet wherein a first web is formed by wet-laying fibres and a second web is formed by dry-laying fibres, the two webs being combined to form a multi-ply sheet and wherein the dry-laid web is produced by depositing dry fibres on a supporting band and consolidating the web by hot moist pressing before transferring to the first wet-laid web.
    Type: Grant
    Filed: August 21, 1973
    Date of Patent: May 4, 1976
    Assignee: Karl Kroyer St. Anne's Limited
    Inventors: Harold George Curry, Brian William Attwood, Derek Graham Walter White
  • Patent number: 3952130
    Abstract: A paper product comprising mineral fibers and a nonfibrous, highly refined gel binder, the product having a thickness no greater than about 0.080 inches and an apparent specific gravity of between about 0.25 and about 0.85. The product may be a sheet no thicker than about 0.012 inches, or a paperboard.
    Type: Grant
    Filed: July 17, 1974
    Date of Patent: April 20, 1976
    Assignee: United States Gypsum Company
    Inventor: Stephen G. Nason