Patents by Inventor Kazufumi Ogawa

Kazufumi Ogawa 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: 9580645
    Abstract: A fluorescent paste that can form a fluorescent film and can be manufactured without a binder resin and has a high recording density and peel resistance. Fluorescent fine particles each coated with a film formed of a film compound having a reactive group and a curing agent having a plurality of crosslinking reaction groups each reacting with the reactive group to form bonds are blended with a solvent to manufacture fluorescent paste. The fluorescent paste is applied to a substrate coated with a film formed of a second film compound having a second reactive group and is cured by crosslinking reactions between the reactive group and the second reactive group, and the crosslinking reaction groups to form a fluorescent film.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: February 28, 2017
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Kazufumi Ogawa
  • Patent number: 9447284
    Abstract: A water repellent glass plate, manufacturing method thereof, and a vehicle or a paned window having the same can include a glass plate having a film coating that includes a transparent micro particle covalently bound to the surface of the glass.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: September 20, 2016
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Kazufumi Ogawa
  • Patent number: 9373805
    Abstract: An optical sensor that can be produced at a low cost from inexpensive silicon fine particles as raw materials and a method for making the optical sensor are provided. In an optical sensor 1, a layer of epoxidized n-type silicon fine particles 24 coated with a coating film having a functional group is selectively fixed and bonded onto only a pattern portion of a surface of a transparent electrode 51 coated with a coating film having a first functional group, and a layer of p-type silicon fine particles 25 coated with a coating film having a third functional group is fixed and bonded thereon. The first and second functional groups and the second and third coupling groups are respectively fixed with each other via bonds formed between them and coupling reactive groups in a coupling agent.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: June 21, 2016
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Kazufumi Ogawa
  • Patent number: 9330807
    Abstract: The present invention relates to a conductive paste in which fine metal particles are dispersed into a chemical adsorption liquid produced from a mixture of at least an alkoxysilane compound, a silanol condensation catalyst, and a nonaqueous organic solvent to form an organic thin film comprising molecules covalently bound to the surface of the fine metal particle by having the surface of the fine metal particle react with the alkoxysilane compound, so that fine metal particles that are given a reactive function to the surface are produced while almost maintaining the original conductivity of the fine metal particles, and further the particles are pasted with an organic solvent.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: May 3, 2016
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Kazufumi Ogawa, Kazuhiro Soejima
  • Patent number: 9200012
    Abstract: A patterned fine particle film structure includes a fine particle layer including fine particles arranged and bound to a surface of a substrate coated with a patterned film including a first film compound having a first functional group. The fine particles are coated with films including a first coupling agent having a first coupling reactive group that undergoes a coupling reaction with the first functional group to form a bond. The fine particle layer is bound by a bond formed through a coupling reaction. In an embodiment, fine particles coated with films of a film compound that reacts with the first coupling reactive group and the fine particles are alternately bound to the substrate.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: December 1, 2015
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Kazufumi Ogawa
  • Patent number: 9180206
    Abstract: This invention provides a pharmaceutical preparation for DDS containing a pharmaceutical agent fixed by bonding to a monomolecular layer that is covalently bonded to a magnetic particle surface, (a) by reacting an alkoxysilane compound with the magnetic microparticle surface by dispersing a magnetic microparticle in a liquid mixture including an epoxy-containing alkoxysilane compound, a silanol condensation catalyst, and a non-aqueous organic solvent; (b) by washing the microparticle surface with an organic solvent to remove remaining surplus alkoxysilane compound for producing an epoxy-containing monomolecular layer that is covalently bonded to the microparticle surface; and (c) by fixing an imino-containing pharmaceutical agent such as a protein, amino acid, enzyme, antibody, antibiotic, antimicrobial, or contrast medium by reaction with the epoxy group.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: November 10, 2015
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Kazufumi Ogawa
  • Patent number: 9174366
    Abstract: The mold has a mold surface on which is formed as a release film a water-repellent and oil-repellent fluorocarbon-based chemisorbed film having a thickness that is uniform in nanoscale and having a controlled surface energy. As a result, even when a mold has an ultrafine shape on the nanometer scale, the mold allows high precision molding excellent in fluidity and penetrativity of a molding material. In addition, this mold eliminates the application of a release agent and can prevent a release agent from adhering to a molded article.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: November 3, 2015
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Kazufumi Ogawa
  • Patent number: 9160053
    Abstract: Conventional chemisorption films use only a chemical bond between an adsorbent and a flat base material surface and thus have a problem that the contact angle of water droplets is about 120 degrees at the highest and, thus, water-repellent, oil-repellent and anti-fouling properties and water take-off properties are unsatisfactory for spontaneous removal of water droplets and dirt as in a lotus leaf. This invention provides an icing and snow accretion preventive insulator, electric wire and antenna. They are manufactured by a method characterized by comprising at least the step of forming a fine particle fusion film on the surface of a base material, the step of coating a fine particle liquid, prepared by dispersing fine particles in a solvent which does not dissolve the film, and drying the coating, the step of firing, the step of removing, by washing, fine particles not fused to the film, and the step of forming a water-repellent, oil-repellent and anti-fouling film.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: October 13, 2015
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Kazufumi Ogawa
  • Publication number: 20150259539
    Abstract: Optically transparent and translucent superhydrophobic and lipophobic surfaces are disclosed. The surfaces may be composed of a glass substrate on which multiple nano-particulates may be heat fused. The nano-particulates may be composed of metal oxides such as aluminum oxide or zinc oxide. Methods for fabricating such surfaces are also disclosed. In one method, a thin layer of a metal may be deposited on a substrate. The metal-covered substrate may be heated in an oxidizing atmosphere until the metal forms metal oxide nano particulates on the surface of the substrate. The heating process may also serve to fuse the nano-particulates onto the substrate.
    Type: Application
    Filed: September 26, 2013
    Publication date: September 17, 2015
    Inventor: Kazufumi Ogawa
  • Patent number: 8951627
    Abstract: A patterned fluorescent fine particle film that retains the intrinsic functions of fluorescent fine particles and that can be formed on any substrate at a desired thickness, a method for manufacturing the patterned fluorescent fine particle film, and a display apparatus including the patterned fluorescent fine particle film are provided.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: February 10, 2015
    Assignee: Empire Technology Development LLC
    Inventor: Kazufumi Ogawa
  • Patent number: 8872709
    Abstract: A representative embodiment prevents breakage of antennas and accidents due to breakage of electric wires caused by ice and snow accretion by realizing a surface with a surface energy of 2 mN/m or less and providing an antenna and electric wire having an extremely great effect of preventing ice and snow accretion at midwinter. Another representative embodiment provides an ice and snow accretion-preventive antenna and electric wire wherein a surface thereof is compositely fabricated to have large roughness and small roughness, and the surface of each of the roughness is coated with a water-repellent, oil-repellent, and antifouling thin film.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: October 28, 2014
    Assignee: Empire Technology Development LLC
    Inventor: Kazufumi Ogawa
  • Publication number: 20140243445
    Abstract: A fluorescent paste that can form a fluorescent film and can be manufactured without a binder resin and has a high recording density and peel resistance Fluorescent fine particles each coated with a film formed of a film compound having a reactive group and a curing agent having a plurality of crosslinking reaction groups each reacting with the reactive group to form bonds are blended with a solvent to manufacture fluorescent paste. The fluorescent paste is applied to a substrate coated with a film formed of a second film compound having a second reactive group and is cured by crosslinking reactions between the reactive group and the second reactive group, and the crosslinking reaction groups to form a fluorescent film.
    Type: Application
    Filed: February 28, 2014
    Publication date: August 28, 2014
    Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Kazufumi OGAWA
  • Patent number: 8715530
    Abstract: A fluorescent paste that can form a fluorescent film and can be manufactured without a binder resin and has a high recording density and peel resistance Fluorescent fine particles each coated with a film formed of a film compound having a reactive group and a curing agent having a plurality of crosslinking reaction groups each reacting with the reactive group to form bonds are blended with a solvent to manufacture fluorescent paste. The fluorescent paste is applied to a substrate coated with a film formed of a second film compound having a second reactive group and is cured by crosslinking reactions between the reactive group and the second reactive group, and the crosslinking reaction groups to form a fluorescent film.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: May 6, 2014
    Assignee: Empire Technology Development LLC
    Inventor: Kazufumi Ogawa
  • Publication number: 20140087068
    Abstract: The mold has a mold surface on which is formed as a release film a water-repellent and oil-repellent fluorocarbon-based chemisorbed film having a thickness that is uniform in nanoscale and having a controlled surface energy. As a result, even when a mold has an ultrafine shape on the nanometer scale, the mold allows high precision molding excellent in fluidity and penetrativity of a molding material. In addition, this mold eliminates the application of a release agent and can prevent a release agent from adhering to a molded article.
    Type: Application
    Filed: November 27, 2013
    Publication date: March 27, 2014
    Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Kazufumi OGAWA
  • Publication number: 20140077137
    Abstract: The present invention relates to a conductive paste in which fine metal particles are dispersed into a chemical adsorption liquid produced from a mixture of at least an alkoxysilane compound, a silanol condensation catalyst, and a nonaqueous organic solvent to form an organic thin film comprising molecules covalently bound to the surface of the fine metal particle by having the surface of the fine metal particle react with the alkoxysilane compound, so that fine metal particles that are given a reactive function to the surface are produced while almost maintaining the original conductivity of the fine metal particles, and further the particles are pasted with an organic solvent.
    Type: Application
    Filed: November 25, 2013
    Publication date: March 20, 2014
    Applicant: Empire Technology Development LLC
    Inventors: Kazufumi OGAWA, Kazuhiro Soejima
  • Patent number: 8658888
    Abstract: A solar energy utilization device wherein the surface of the incident light side of the transparent base material 1 is covered by water-and-oil-shedding transparent fine particles 5 being bound and fixed to the surface. A method for manufacturing a solar energy utilization device comprising process A of manufacturing reactive transparent fine particles 9 with the first functional group at one end; process B of manufacturing reactive transparent base material 4 with the second functional group at one end forming a covalent bond with the first functional group; process C of manufacturing transparent base material 10 by reacting the reactive transparent fine particles 9 with the reactive transparent base material 4 for binding and fixing the reactive transparent fine particles 9 to the surface; and process D of forming water-and-oil-shedding coating 16 on the surface of the transparent fine particles 5 being bound and fixed to the surface of the transparent base material 10.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: February 25, 2014
    Assignee: Empire Technology Development LLC
    Inventor: Kazufumi Ogawa
  • Publication number: 20140045126
    Abstract: A patterned fine particle film structure includes a fine particle layer including fine particles arranged and bound to a surface of a substrate coated with a patterned film including a first film compound having a first functional group. The fine particles are coated with films including a first coupling agent having a first coupling reactive group that undergoes a coupling reaction with the first functional group to form a bond. The fine particle layer is bound by a bond formed through a coupling reaction. In an embodiment, fine particles coated with films of a film compound that reacts with the first coupling reactive group and the fine particles are alternately bound to the substrate.
    Type: Application
    Filed: October 15, 2013
    Publication date: February 13, 2014
    Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Kazufumi OGAWA
  • Patent number: 8623500
    Abstract: The present invention relates to a conductive paste in which fine metal particles are dispersed into a chemical adsorption liquid produced from a mixture of at least an alkoxysilane compound, a silanol condensation catalyst, and a nonaqueous organic solvent to form an organic thin film comprising molecules covalently bound to the surface of the fine metal particle by having the surface of the fine metal particle react with the alkoxysilane compound, so that fine metal particles that are given a reactive function to the surface are produced while almost maintaining the original conductivity of the fine metal particles, and further the particles are pasted with an organic solvent.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: January 7, 2014
    Assignee: Empire Technology Development LLC
    Inventors: Kazufumi Ogawa, Kazuhiro Soejima
  • Patent number: 8623127
    Abstract: The mold has a mold surface on which is formed as a release film a water-repellent and oil-repellent fluorocarbon-based chemisorbed film having a thickness that is uniform in nanoscale and having a controlled surface energy. As a result, even when a mold has an ultrafine shape on the nanometer scale, the mold allows high precision molding excellent in fluidity and penetrativity of a molding material. In addition, this mold eliminates the application of a release agent and can prevent a release agent from adhering to a molded article.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: January 7, 2014
    Assignee: Empire Technology Development LLC
    Inventor: Kazufumi Ogawa
  • Patent number: 8597460
    Abstract: An adhesion method capable of strongly adhering two members without using an adhesive and without impairing a fine structure or optical properties of a joining surface, and a biochemical chip and optical component made by the same are provided. The adhesion method includes step A of forming a coating film 13 of a first film compound having a first functional group on a first joining surface 11 of a first member 21, step B of forming a coating film 14 of a second film compound having a second functional group on a second joining surface 12 of a second member 22, and step C of bringing the first joining surface 11 into contact by pressure with the second joining surface 12 while bringing a coupling agent having at least one coupling reactive group that forms a bond by a coupling reaction with the first functional group and the second functional group into contact with the first and second functional groups to form bonds by the coupling reaction.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: December 3, 2013
    Assignee: Empire Technology Development LLC
    Inventor: Kazufumi Ogawa