Patents by Inventor Toshiaki Kubo

Toshiaki Kubo 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).

  • Patent number: 7501289
    Abstract: It is an object of the present invention to provide a biosensor, which is not significantly affected by the baseline fluctuation and suppresses nonspecific adsorption. The present invention provides a biosensor, which comprises a metal surface or metal film coated with a hydrophobic polymer, and has two or more types of different surfaces in a region coated with a hydrophobic polymer.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: March 10, 2009
    Assignee: FUJIFILM Corporation
    Inventors: Toshiaki Kubo, Toshihide Ezoe
  • Publication number: 20080298707
    Abstract: An image processing apparatus receives n-bit image data, carries out an ?-bit bit extension, and outputs (n+?)-bit image data, where n and ? are positive integers. The apparatus also performs an epsilon filtering operation that uses the additional gray levels provided by the bit extension to smooth out false edges caused by the bit extension without smoothing out real edges. The output image preserves both the smoothness of regions of gradual change and the sharpness of abrupt changes in the input image.
    Type: Application
    Filed: May 23, 2008
    Publication date: December 4, 2008
    Inventors: Toshiaki Kubo, Satoshi Yamanaka
  • Patent number: 7425454
    Abstract: It is an object of the present invention to provide a detection surface used for biosensors, in which non-specific adsorption is suppressed and the generation of pinholes is also suppressed. The present invention provides a biosensor, which comprises a substrate coated with a hydrophobic polymer having an alkyl group substituted with a fluorine atom.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: September 16, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Toshiaki Kubo, Masaki Noro
  • Publication number: 20070243633
    Abstract: An object of the present invention is to provide a biosensor which exhibits good reproducibility of the amount of an immobilized physiologically active substance by suppressing plane deterioration (separation of a metal film from a resin) which occurs at the formation of a thin metal film layer on a resin surface. The present invention provides a biosensor which is produced by performing plasma irradiation on a light-reflecting surface of an optical block which is obtained by molding a resin and has at least 3 surfaces including a light incident surface, the light-reflecting surface and a light-emerging surface; forming a first metal layer; and then forming a second metal layer on the side of the first metal layer which is opposite to the light-reflecting surface.
    Type: Application
    Filed: September 29, 2005
    Publication date: October 18, 2007
    Inventors: Masashi Hakamata, Toshiaki Kubo
  • Publication number: 20070048796
    Abstract: It is an object of the present invention to provide a biosensor with an improved recovery yield of a test substance interacting with a physiologically active substance. The present invention provides a biosensor having a flow channel formed on a substrate, which is composed of a detection surface for detecting the interaction of a physiologically active substance with a test substance and a non-detection surface that does not detect said interaction, wherein the detection surface and non-detection surface are modified in such a way that the physiologically active substance can be immobilized thereon.
    Type: Application
    Filed: August 24, 2006
    Publication date: March 1, 2007
    Inventors: Toshiaki Kubo, Toshihide Ezoe, Hirohiko Tsuzuki, Morihito Ikeda
  • Publication number: 20070040244
    Abstract: It is an object of the present invention to provide a substrate for sensors and a container, wherein the adhesiveness of the substrate to a thin film is improved, a physiologically active substance can be immobilized without the peeling of the thin film from a plastic substrate, and non-specific adsorption during the analysis of interaction among biomolecules is small. The present invention provides a substrate for sensors, which has a thin film layer on a plastic substrate, wherein the plastic substrate has been treated with an organic primer before formation of the thin film.
    Type: Application
    Filed: August 15, 2006
    Publication date: February 22, 2007
    Inventors: Yukou Saito, Hirohiko Tsuzuki, Toshiaki Kubo
  • Publication number: 20060257933
    Abstract: It is an object of the present invention to provide a biosensor used to easily produce a hydrogel capable of immobilizing a physically active substance, using safe materials; and a method for producing the same. The present invention provides a biosensor which comprises a substrate having a metal layer on the surface thereof, wherein an acetoacetyl group-containing hydrophilic polymer is bound to said metal layer directly or via an intermediate layer.
    Type: Application
    Filed: March 20, 2006
    Publication date: November 16, 2006
    Inventors: Taisei Nishimi, Toshiaki Kubo, Toshihide Ezoe
  • Publication number: 20060240478
    Abstract: One object of the present invention is to provide a biosensor and a production method therefor, by which hydrogel that enables immobilization of a physiologically active substance can be conveniently produced using safe raw materials. The present invention provides a biosensor which comprises a substrate having a metal layer on its surface, wherein a hydrophilic polymer having a reactive functional group capable of reacting with a hydroxyl group or an amino group of a physiologically active substance is bound to the metal layer directly or indirectly via an intermediate layer.
    Type: Application
    Filed: February 22, 2006
    Publication date: October 26, 2006
    Inventors: Taisei Nishimi, Toshihide Ezoe, Toshiaki Kubo, Hidetoshi Tomita
  • Publication number: 20060209305
    Abstract: An object of the invention is to reduce the negative drift of the baseline signal when measuring a specific binding reaction between a physiologically active substance and a test substance by using a surface plasmon resonance measurement device. The present invention provides a biosensor comprising a substrate on the surface of which a physiologically active substance is immobilized via noncovalent bond, which is used for a method for detecting or measuring a substance that interacts with the physiologically active substance, with the use of a fluid channel system comprising a cell formed on the substrate, in a state where the flow of the liquid has been stopped after the liquid contained in said flow channel system has been exchanged.
    Type: Application
    Filed: February 28, 2006
    Publication date: September 21, 2006
    Inventors: Koji Kuruma, Toshiaki Kubo
  • Publication number: 20060211137
    Abstract: It is an object of the present invention to provide a biosensor wherein a reference unit and a measurement unit can be prepared by performing only a single operation for immobilizing a physiologically active substance and wherein unnecessary electric charge does not remain in the reference unit. The present invention provides a biosensor which comprises a substrate composed of a metal surface or metal film coated with a hydrophilic polymer compound, and which has a surface for retaining a physiologically active substance and a surface that does not retain a physiologically active substance on a single plane of the substrate.
    Type: Application
    Filed: February 27, 2006
    Publication date: September 21, 2006
    Inventors: Toshihide Ezoe, Toshiaki Kubo, Masashi Hakamata
  • Publication number: 20060128032
    Abstract: It is an object of the present invention to provide a detection surface used for biosensors, in which non-specific adsorption is suppressed and the generation of pinholes is also suppressed. The present invention provides a biosensor, which comprises a substrate coated with a hydrophobic polymer having an alkyl group substituted with a fluorine atom.
    Type: Application
    Filed: July 28, 2005
    Publication date: June 15, 2006
    Inventors: Toshiaki Kubo, Masaki Noro
  • Publication number: 20060068424
    Abstract: An object of the present invention is to provide a biosensor wherein at least two types of surfaces are patterned without impairing the sensor surface and non-specific adsorption is thereby suppressed. The present invention provides a biosensor comprising a substrate coated with a hydrophobic compound having a photoactive group, or a substrate which is coated with a hydrophobic polymer and is further modified with a compound having a photoactive group.
    Type: Application
    Filed: August 12, 2005
    Publication date: March 30, 2006
    Inventors: Toshiaki Kubo, Koichi Kawamura, Takeyoshi Kano
  • Publication number: 20060040410
    Abstract: It is an object of the present invention to provide a technique of converting carboxylic acid into an active ester with no generation of air bubbles and a technique of stabilizing the obtained active ester. The present invention provides a biosensor wherein a carboxyl group existing on the surface of a substrate thereof is activated with any one compound selected from an uronium salt, a phosphonium salt or a triazine derivative which are defined in the present application, so as to form a carboxylic acid amide group.
    Type: Application
    Filed: August 17, 2005
    Publication date: February 23, 2006
    Inventors: Taisei Nishimi, Toshihide Ezoe, Toshiaki Kubo
  • Publication number: 20050233378
    Abstract: It is an object of the present invention to provide a detection surface used for biosensors, which has an improved efficiency of immobilizing a physiologically active substance. The present invention provides a biosensor having a substrate, to the surface of which a compound represented by the following formula (A) is bound: wherein X represents a group capable of binding to the surface of a biosensor or a functional group existing on the surface of the biosensor; Y represents a group capable of binding to a physiologically active substance or a compound binding to the physiologically active substance; Z represents a group having an electric charge; each of L1, L2, and L3 independently represents a divalent linking group; L4 represents a trivalent group; and each of m, n, and p independently represents an integer of 0 or greater.
    Type: Application
    Filed: March 23, 2005
    Publication date: October 20, 2005
    Inventor: Toshiaki Kubo
  • Publication number: 20050158850
    Abstract: It is an object of the present invention to provide a biosensor, which is not significantly affected by the baseline fluctuation and suppresses nonspecific adsorption. The present invention provides a biosensor, which comprises a metal surface or metal film coated with a hydrophobic polymer, and has two or more types of different surfaces in a region coated with a hydrophobic polymer.
    Type: Application
    Filed: December 27, 2004
    Publication date: July 21, 2005
    Inventors: Toshiaki Kubo, Toshihide Ezoe
  • Publication number: 20050008851
    Abstract: It is an object of the present invention to provide a detection surface used for a biosensor wherein nonspecific adsorption is repressed. The present invention provides a biosensor comprising a substrate coated with a hydrophobic polymer.
    Type: Application
    Filed: February 18, 2004
    Publication date: January 13, 2005
    Inventors: Toshihide Ezoe, Toshiaki Kubo, Yoshihisa Tsukada, Junichi Yamanouchi, Hideaki Tanaka
  • Patent number: 6790584
    Abstract: A silver halide photographic light-sensitive material having layers containing a swellable inorganic stratifying compound on both sides of a support and having at least one silver halide emulsion layer on at least one of the layers. There is provided a silver halide photographic light-sensitive material showing good dimensional stability.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: September 14, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tadashi Ito, Toshiaki Kubo
  • Patent number: 6770430
    Abstract: A therally processed image forming material less causative of adhesion during storage in a form of commercial product is provided. The thermally processed image forming material has on only one side of a support an image forming layer, in which the outermost layer on the same side with the image forming layer contains a binder different from that contained in the outermost layer on the opposite side of the support.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: August 3, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Toshiaki Kubo
  • Publication number: 20040002027
    Abstract: A thermographic recording element having at least one image forming layer contains an organic silver salt, a reducing agent, and optionally, a photosensitive silver halide. The element further contains a substituted alkene derivative of specific structure and preferably a specific hydrazine derivative. The element can be processed in a fully dry basis to produce images having high Dmax and gradation and free of black pepper.
    Type: Application
    Filed: May 30, 2003
    Publication date: January 1, 2004
    Applicant: Fuji Photo Film Co., Ltd.
    Inventors: Kohzaburoh Yamada, Toshiaki Kubo, Hiroyuki Suzuki
  • Publication number: 20030228547
    Abstract: A silver halide photographic light-sensitive material having layers containing a swellable inorganic stratifying compound on both sides of a support and having at least one silver halide emulsion layer on at least one of the layers. There is provided a silver halide photographic light-sensitive material showing good dimensional stability.
    Type: Application
    Filed: March 21, 2003
    Publication date: December 11, 2003
    Inventors: Tadashi Ito, Toshiaki Kubo