Patents by Inventor Yudai Yamashita

Yudai Yamashita has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220324759
    Abstract: A manufacturing method of a sintered body is a manufacturing method of the sintered body which increases a temperature while applying an electric field to a ceramic compact. This method controls a current which flows to the ceramic compact so that a sintering rate becomes constant.
    Type: Application
    Filed: July 29, 2020
    Publication date: October 13, 2022
    Inventors: Takahisa YAMAMOTO, Tomoharu TOKUNAGA, Yudai YAMASHITA, Tsuyoshi KURACHI, Kimihiro TAGUCHI, Seiya TAKAHASHI, Ryosuke UMEMURA
  • Publication number: 20180279606
    Abstract: An antibacterial and antifungal article comprising a projection structure on a surface of the antibacterial and antifungal article, the projection structure comprising a projection group comprising a plurality of projections being disposed, where an average PAVG of distances P between adjacent projections is 1 ?m or less, wherein the projection structure comprises projections that a height H is 80 nm or more and 1000 nm or less and a ratio (Wt/Wb) of a width Wt at a 97% height of the height to a width Wb at a bottom, is 0.5 or less.
    Type: Application
    Filed: April 3, 2017
    Publication date: October 4, 2018
    Inventors: Yudai YAMASHITA, Shigeki HATORI, Masato TEZUKA, Mihoko KURASHIGE, Mikio ISHIKAWA, Kaori YAMASHITA
  • Publication number: 20130232367
    Abstract: This electronic apparatus includes a plurality of functional blocks, a storage portion storing and accumulating use states of the plurality of functional blocks, and a control portion. The control portion is configured to perform control of disconnecting power supplied to a functional block whose usage rate is not more than a prescribed usage rate, tending to be disused, of the plurality of functional blocks in a state where power is supplied to at least one functional block.
    Type: Application
    Filed: February 28, 2013
    Publication date: September 5, 2013
    Applicant: Funai Electric Co., Ltd.
    Inventors: Akifumi MATSUMURA, Yudai YAMASHITA
  • Patent number: 7986389
    Abstract: An adhesive layer attaining, in a single layer, both adhesiveness permitting direct attachment to a glass plate disposed on the front face of a display device and desired optical filter functions and hardly undergoing the change in spectral characteristics attributable to deterioration in a light absorbing agent, even during long-time use, particularly at high temperature under high humidity, as well as a composite filter using this adhesive layer. The adhesive layer has optical filter functions, containing a block copolymer having at least a specific triblock structure in its molecule and having a weight-average molecular weight of 50,000 or more and a molecular-weight distribution (Mw/Mn) of less than 1.5 and one or more light absorbing agents each having light absorption in a predetermined wavelength region, as well as a composite filter using this adhesive layer.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: July 26, 2011
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yudai Yamashita, Hideki Imamura, Yuka Hiwatashi, Toshio Yoshihara
  • Publication number: 20090279168
    Abstract: The object of the invention is to provide an adhesive composition attaining, in a single layer, both adhesiveness capable of direct attachment to a glass plate disposed on the front face of a display device and desired optical filter functions and hardly undergoing the change in spectral characteristics attributable to deterioration in a light absorbing agent, even during long-time use, particularly at high temperature under high humidity, as well as an optical filter using this adhesive composition. The object is solved by an optical filter comprising an adhesive layer having optical filter functions, comprising a block copolymer (I) having at least a specific triblock structure in its molecule and having a weight average molecular weight of 50,000 or more and a molecular weight distribution (Mw/Mn) of less than 1.5, a resin (IV) having the glass transition temperature of 60° C. or more and one or more light absorbing agents (III) each having light absorption in a predetermined wavelength region.
    Type: Application
    Filed: September 28, 2007
    Publication date: November 12, 2009
    Inventors: Yuka Hiwatashi, Toshio Yoshihara, Yudai Yamashita, Hiroyuki Ohtaki
  • Patent number: 7569334
    Abstract: In the present invention, the problem of stability deterioration of the obtained conductive pattern substrate at the time of forming a conductive pattern by an additive method when a layer having reactivity remains on the substrate is to be solved. According to pattern exposure with a photo catalyst substrate 4 having a photo catalyst layer 3 laminated on a second substrate 5 superimposed onto a wettability changeable substrate 1 with a wettability changeable layer 3 laminated on a first substrate 2, a wettability pattern is formed. And furthermore, by adhering a conductive coating solution, or the like, a conductive pattern substrate without containing a photo catalyst can be manufactured.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: August 4, 2009
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hironori Kobayashi, Yudai Yamashita
  • Publication number: 20090116132
    Abstract: An optical filter including an adhesive layer attaining, in a single layer, both adhesiveness and desired optical filter function and hardly undergoing the change in spectral characteristic attributable to deterioration of a light absorbing agent, even after long-time use, particularly at high temperature under high humidity. The optical filter includes: (A) an acrylic copolymer containing (meth)acrylate having a hydroxyl group as a constituent, not containing a monomer having a carboxyl group and a monomer having an amide group as constituents, and substantially not containing a carboxyl group residue; (B) an isocyanate compound; and (C) one or more light absorbing agents each having light absorption in a predetermined wavelength range.
    Type: Application
    Filed: September 27, 2007
    Publication date: May 7, 2009
    Inventors: Yuka Hiwatashi, Yudai Yamashita
  • Publication number: 20090002620
    Abstract: An adhesive layer attaining, in a single layer, both adhesiveness permitting direct attachment to a glass plate disposed on the front face of a display device and desired optical filter functions and hardly undergoing the change in spectral characteristics attributable to deterioration in a light absorbing agent, even during long-time use, particularly at high temperature under high humidity, as well as a composite filter using this adhesive layer. The adhesive layer has optical filter functions, containing a block copolymer having at least a specific triblock structure in its molecule and having a weight-average molecular weight of 50,000 or more and a molecular-weight distribution (Mw/Mn) of less than 1.5 and one or more light absorbing agents each having light absorption in a predetermined wavelength region, as well as a composite filter using this adhesive layer.
    Type: Application
    Filed: June 28, 2007
    Publication date: January 1, 2009
    Inventors: Yudai Yamashita, Hideki Imamura, Yuka Hiwatashi, Toshio Yoshihara
  • Patent number: 7445971
    Abstract: The present invention provides a thin-film transistor that is formed by using a patterning method capable of forming a semiconductor channel layer in sub-micron order and a method for manufacturing thereof that provides a thin-film transistor with a larger area, and suitable for mass production. These objects are achieved by a thin-film transistor formed on a substrate 1 with a finely processed concavoconvex surface 2, in which a source electrode and a drain electrode are formed on adjacent convex portions of the concavoconvex surface 2, with a channel and a gate being formed on a concave area between the convex portions. A gate electrode 5, a gate insulating film 6 and a semiconductor channel layer 7 are laminated in this order on the concave area from the bottom surface of the concave portion toward the top surface.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: November 4, 2008
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Wataru Saito, Yudai Yamashita
  • Publication number: 20070117282
    Abstract: The present invention provides a thin-film transistor that is formed by using a patterning method capable of forming a semiconductor channel layer in sub-micron order and a method for manufacturing thereof that provides a thin-film transistor with a larger area, and suitable for mass production. These objects are achieved by a thin-film transistor formed on a substrate 1 with a finely processed concavoconvex surface 2, in which a source electrode and a drain electrode are formed on adjacent convex portions of the concavoconvex surface 2, with a channel and a gate being formed on a concave area between the convex portions. A gate electrode 5, a gate insulating film 6 and a semiconductor channel layer 7 are laminated in this order on the concave area from the bottom surface of the concave portion toward the top surface.
    Type: Application
    Filed: January 10, 2007
    Publication date: May 24, 2007
    Inventors: Wataru Saito, Yudai Yamashita
  • Patent number: 7166861
    Abstract: The present invention provides a thin-film transistor that is formed by using a patterning method capable of forming a semiconductor channel layer in sub-micron order and a method for manufacturing thereof that provides a thin-film transistor with a larger area, and suitable for mass production. These objects are achieved by a thin-film transistor formed on a substrate 1 with a finely processed concavoconvex surface 2, in which a source electrode and a drain electrode are formed on adjacent convex portions of the concavoconvex surface 2, with a channel and a gate being formed on a concave area between the convex portions. A gate electrode 5, a gate insulating film 6 and a semiconductor channel layer 7 are laminated in this order on the concave area from the bottom surface of the concave portion toward the top surface.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: January 23, 2007
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Wataru Saito, Yudai Yamashita
  • Publication number: 20060231832
    Abstract: A liquid crystalline organic compound which gives a liquid crystal phase in a temperature range containing at least a room temperature and can exhibit a high charge mobility; an organic semiconductor structure and an organic semiconductor device each having the liquid crystalline organic compound are provided.
    Type: Application
    Filed: March 8, 2006
    Publication date: October 19, 2006
    Inventors: Keiji Tokunaga, Yudai Yamashita, Jun-ichi Hanna
  • Patent number: 6872646
    Abstract: A conductive pattern is obtained by forming concave-convex on a substrate by using a pattern substrate. A conductive thin layer is formed and then coated with a layer of a photosensitive resin. The photo sensitive resin is exposed and development by using the pattern substrate to bare the conductive thin layer on the convex portion and electrolytic plating. The conductive thin layer and the layer of the photosensitive resin on the concave portion may then be removed.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: March 29, 2005
    Assignee: Dia Nippon Printing Co., Ltd.
    Inventor: Yudai Yamashita
  • Publication number: 20040232495
    Abstract: The present invention provides a thin-film transistor that is formed by using a patterning method capable of forming a semiconductor channel layer in sub-micron order and a method for manufacturing thereof that provides a thin-film transistor with a larger area, and suitable for mass production. These objects are achieved by a thin-film transistor formed on a substrate 1 with a finely processed concavoconvex surface 2, in which a source electrode and a drain electrode are formed on adjacent convex portions of the concavoconvex surface 2, with a channel and a gate being formed on a concave area between the convex portions. A gate electrode 5, a gate insulating film 6 and a semiconductor channel layer 7 are laminated in this order on the concave area from the bottom surface of the concave portion toward the top surface.
    Type: Application
    Filed: January 21, 2004
    Publication date: November 25, 2004
    Inventors: Wataru Saito, Yudai Yamashita
  • Publication number: 20040081921
    Abstract: It is an major object to ravel out the drawbacks that it is difficult to form a sectional shape of a metal pattern in square and it is also difficult to obtain a constant line width in the conventional full additive method and semi additive method, and to solve the problem that it is difficult to secure dimensional accuracy and positional accuracy at a high level in the above method using conductive ink and a photoresist since this method is carried out by utilizing printing. To attain the above object, in the present invention, a conductive pattern 12a is obtained by forming concavo-convex on a substrate 1 by using a pattern substrate 4, and forming a conductive thin layer 9, then coating with a layer 10 of a photosensitive resin, exposing and developing by using the pattern substrate 4 again to bare a conductive thin layer 9a on the convex portion and carrying out electrolytic plating. The conductive thin layer 9 and the layer of the photosensitive resin on the concave portion may be removed.
    Type: Application
    Filed: June 3, 2003
    Publication date: April 29, 2004
    Inventor: Yudai Yamashita
  • Publication number: 20040043334
    Abstract: In the present invention, the problem of stability deterioration of the obtained conductive pattern substrate at the time of forming a conductive pattern by an additive method when a layer having reactivity remains on the substrate is to be solved. According to pattern exposure with a photo catalyst substrate 4 having a photo catalyst layer 3 laminated on a second substrate 5 superimposed onto a wettability changeable substrate 1 with a wettability changeable layer 3 laminated on a first substrate 2, a wettability pattern is formed. And furthermore, by adhering a conductive coating solution, or the like, a conductive pattern substrate without containing a photo catalyst can be manufactured.
    Type: Application
    Filed: April 17, 2003
    Publication date: March 4, 2004
    Inventors: Hironori Kobayashi, Yudai Yamashita
  • Patent number: 5932301
    Abstract: A first information recording medium (shown in Fig. 1(a)) has an electrode layer (13), and an information recording layer (11) provided on the electrode layer by coating a mixed solution of a liquid crystal, a multifunctional ultraviolet curing resin material whose parameter, which is expressed by the average molecular weight divided by the average functional group, is not larger than 160, and a fluorocarbon surface-active agent, and then curing the coating by irradiation with ultraviolet rays, thereby forming an ultraviolet curing resin skin layer having no liquid crystal phase on the outer surface of the information recording layer. A second information recording medium (shown in Fig. 1(b)) further has a patterned electrode layer (13') provided on the information recording layer (11) of the first information recording medium. A third information recording medium (shown in FIG.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: August 3, 1999
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hironori Kamiyama, Yudai Yamashita
  • Patent number: 5693421
    Abstract: A first information recording medium has an electrode layer, and an information recording layer provided on the electrode layer, a multifunctional ultraviolet curing resin material and a fluorocarbon surface-active agent, and then curing the coating. A second information recording medium further has a patterned electrode layer provided on the information recording layer. A third information recording medium has an electrode layer, a photoconductive layer, an information recording layer including a liquid crystal phase and a resin phase, a resin layer, and an electrode layer, wherein at least one of the electrode layers is transparent. A fourth information recording medium further has an insulating layer provided between the photoconductive layer and the information recording layer in the third information recording medium. A fifth information recording medium has an information recording layer provided on an electrode layer.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: December 2, 1997
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hironori Kamiyama, Yudai Yamashita
  • Patent number: 5677063
    Abstract: A first information recording medium has an electrode layer, and an information recording layer, a multifunctional ultraviolet curing resin material and a fluorocarbon surface-active agent, and ultraviolet curing resin skin layer having no liquid crystal phase on the outer surface of the information recording layer. A second information recording medium has a patterned electrode layer. A third information recording medium has an electrode layer, a photoconductive layer, an information recording layer including a liquid crystal phase and a resin phase, a resin layer, and an electrode layer, wherein at least one of the electrode layers is transparent. A fourth information recording medium further has an insulating layer provided between the photoconductive layer and the information recording layer in the third information recording medium. A fifth information recording medium has an information recording layer provided on an electrode layer.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: October 14, 1997
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hironori Kamiyama, Yudai Yamashita
  • Patent number: 5270099
    Abstract: The present invention provides a thermal mimeograph paper having a point-bonded structure and including a porous backing material and a thermoplastic resin film layer laminated on one side thereof through an adhesive, wherein the porous backing material and the thermoplastic resin film are bonded together by dotwise point bonding. This point-bonded structure enables the perforability of the mimeograph paper to be improved.
    Type: Grant
    Filed: October 2, 1991
    Date of Patent: December 14, 1993
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Hironori Kamiyama, Kazue Komatsubara, Junichi Hiroi, Mitsuru Tsuchiya, Yozo Kosaka, Shinichi Sakano, Masayuki Ando, Yudai Yamashita