Patents by Inventor Nobuko Takahashi

Nobuko Takahashi 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: 7776436
    Abstract: A hardcoat for a plastic substrate film is provided which has good suitability for printing and satisfactory hardness, can prevent influence of the deformation of a plastic substrate film from extending to the hardcoat, and is resistant to cracking and peeling. The hardcoat is produced from a coating component containing one or more organic components having a polymerizable functional group and an inorganic filler, at least one of the organic components being free from a hydrogen bond-forming group. In the hard coat, the content of the inorganic filler in the surface of the hardcoat is higher than that in the interior of the hardcoat. The hardcoat can be applied to antireflection films and hologram labels.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: August 17, 2010
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Toshio Yoshihara, Yurie Ota, Nobuko Takahashi, Noboru Kunimine, Satoshi Shioda, Mikiko Hojo
  • Publication number: 20060177588
    Abstract: An alternating current type plasma display with front and back facing substrates with a gas discharge space between the substrates and a dielectric layer-covered electrode pair on at least one substrate, the dielectric layer having thereon a protective layer formed by coating the dielectric layer with a coating liquid substantially including a partial hydrolyzate derived from an alkaline earth metal compound having a hydrolysable reaction site and heating the coating.
    Type: Application
    Filed: March 14, 2006
    Publication date: August 10, 2006
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Toshio Yoshihara, Nobuko Takahashi, Satoshi Mitamura
  • Patent number: 7078859
    Abstract: An alternating current type plasma display with front and back facing substrates with a gas discharge space between the substrates and a dielectric layer-covered electrode pair on at least one substrate, the dielectric layer having thereon a protective layer formed by coating the dielectric layer with a coating liquid substantially including a partial hydrolyzate derived from an alkaline earth metal compound having a hydrolyzable reaction site and heating the coating.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: July 18, 2006
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Toshio Yoshihara, Nobuko Takahashi, Satoshi Mitamura
  • Patent number: 6893313
    Abstract: A method for forming a protective layer for a dielectric material in an alternating current type plasma display is provided. In this connection, a coating sol solution is provided which can form a protective layer on a large area substrate without the need to introduce any expensive equipment, the protective layer thus formed being excellent in properties such as strength, adhesion, transparency, and protective properties and capable of being formed by a sol-gel process without use of the conventional vacuum process. The sol solution comprises a dispersion of a precursor to magnesium oxide in a specific form. A method for film formation, using this solution is also provided.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: May 17, 2005
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Satoshi Mitamura, Toshio Yoshihara, Nobuko Takahashi
  • Publication number: 20040155582
    Abstract: There are provided a coating composition which can satisfactorily form a film even at a low temperature by chemical means in a simple and stable manner, has excellent film strength, adhesion, protective effect and other properties in the form of a functional film and can form a functional film at a low cost, a process for producing the coating composition, a functional film, and a process for producing the functional films.
    Type: Application
    Filed: November 24, 2003
    Publication date: August 12, 2004
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Toshio Yoshihara, Nobuko Takahashi, Satoshi Mitamura
  • Publication number: 20040028881
    Abstract: A hardcoat for a plastic substrate film is provided which has good suitability for printing and satisfactory hardness, can prevent influence of the deformation of a plastic substrate film from extending to the hardcoat, and is resistant to cracking and peeling. The hardcoat is produced from a coating component containing one or more organic components having a polymerizable functional group and an inorganic filler, at least one of the organic components being free from a hydrogen bond-forming group. In the hard coat, the content of the inorganic filler in the surface of the hardcoat is higher than that in the interior of the hardcoat. The hardcoat can be applied to antireflection films and hologram labels.
    Type: Application
    Filed: August 12, 2003
    Publication date: February 12, 2004
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Toshio Yoshihara, Yurie Ota, Nobuko Takahashi, Noboru Kunimine, Satoshi Shioda, Mikiko Hojo
  • Patent number: 6682594
    Abstract: A process for making a functional film by adding a magnesium alkoxide and a diethanolamine, which can dissolve or disperse the magnesium alkoxide, in an organic solvent followed by allowing hydrolysis of the magnesium alkoxide to proceed in a rate-controlling manner wherein the magnesium alkoxide is dissolved or dispersed in the organic solvent. Water is added in no more than a stoichiometric amount to the solution or dispersion partially to hydrolyze the magnesium alkoxide. The partial hydrolyzate solution is matured to grow magnesium oxide and/or magnesium hydroxide particles, resulting in a stable sol solution.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: January 27, 2004
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Toshio Yoshihara, Nobuko Takahashi, Satoshi Mitamura
  • Patent number: 6638606
    Abstract: A hardcoat for a plastic substrate film is provided which has good suitability for printing and satisfactory hardness, can prevent influence of the deformation of a plastic substrate film from extending to the hardcoat, and is resistant to cracking and peeling. The hardcoat is produced from a coating component containing one or more organic components having a polymerizable functional group and an inorganic filler, at least one of the organic components being free from a hydrogen bond-forming group. In the hard coat, the content of the inorganic filler in the surface of the hardcoat is higher than that in the interior of the hardcoat. The hardcoat can be applied to antireflection films and hologram labels.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: October 28, 2003
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Toshio Yoshihara, Yurie Ota, Nobuko Takahashi, Noboru Kunimine, Satoshi Shioda, Mikiko Hojo
  • Publication number: 20030067269
    Abstract: A method for forming a protective layer for a dielectric material in an alternating current type plasma display is provided. In this connection, a coating sol solution is provided which can form a protective layer on a large area substrate without the need to introduce any expensive equipment, the protective layer thus formed being excellent in properties such as strength, adhesion, transparency, and protective properties and capable of being formed by a sol-gel process without use of the conventional vacuum process. The sol solution comprises a dispersion of a precursor to magnesium oxide in a specific form. A method for film formation, using this solution is also provided.
    Type: Application
    Filed: June 10, 2002
    Publication date: April 10, 2003
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Satoshi Mitamura, Toshio Yoshihara, Nobuko Takahashi
  • Publication number: 20020182452
    Abstract: There are provided a coating composition which can satisfactorily form a film even at a low temperature by chemical means in a simple and stable manner, has excellent film strength, adhesion, protective effect and other properties in the form of a functional film and can form a functional film at a low cost, a process for producing the coating composition, a functional film, and a process for producing the functional films.
    Type: Application
    Filed: June 5, 2002
    Publication date: December 5, 2002
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Toshio Yoshihara, Nobuko Takahashi, Satoshi Mitamura
  • Patent number: 6437506
    Abstract: A method for forming a protective layer for a dielectric material in an alternating current type plasma display is provided. In this connection, a coating sol solution is provided which can form a protective layer on a large area substrate without the need to introduce any expensive equipment, the protective layer thus formed being excellent in properties such as strength, adhesion, transparency, and protective properties and capable of being formed by a sol-gel process without use of the conventional vacuum process. The sol solution comprises a dispersion of a precursor to magnesium oxide in a specific form. A method for film formation, using this solution is also provided.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: August 20, 2002
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Satoshi Mitamura, Toshio Yoshihara, Nobuko Takahashi
  • Patent number: 6428913
    Abstract: A functional film formed by coating a substrate with a coating composition having a partial hydrolyzate of a metallic compound containing a hydrolyzable reaction site, the partial hydrolyzate being a sol solution containing (1) a magnesium alkoxide, (2) diethanolamine, (3) water, and (4) an organic solvent. The coating may also be heated to form the functional film.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: August 6, 2002
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Toshio Yoshihara, Nobuko Takahashi, Satoshi Mitamura
  • Publication number: 20020098350
    Abstract: A hardcoat for a plastic substrate film is provided which has good suitability for printing and satisfactory hardness, can prevent influence of the deformation of a plastic substrate film from extending to the hardcoat, and is resistant to cracking and peeling. The hardcoat is produced from a coating component containing one or more organic components having a polymerizable functional group and an inorganic filler, at least one of the organic components being free from a hydrogen bond-forming group. In the hard coat, the content of the inorganic filler in the surface of the hardcoat is higher than that in the interior of the hardcoat. The hardcoat can be applied to antireflection films and hologram labels.
    Type: Application
    Filed: January 16, 2002
    Publication date: July 25, 2002
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Toshio Yoshihara, Yurie Ota, Nobuko Takahashi, Noboru Kunimine, Satoshi Shioda, Mikiko Hojo
  • Patent number: 6376060
    Abstract: A hardcoat for a plastic substrate film is provided which has good suitability for printing and satisfactory hardness, can prevent influence of the deformation of a plastic substrate film from extending to the hardcoat, and is resistant to cracking and peeling. The hardcoat is produced from a coating component containing one or more organic components having a polymerizable functional group and an inorganic filler, at least one of the organic components being free from a hydrogen bond-forming group. In the hard coat, the content of the inorganic filler in the surface of the hardcoat is higher than that in the interior of the hardcoat. The hardcoat can be applied to antireflection films and hologram labels.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: April 23, 2002
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Toshio Yoshihara, Yurie Ota, Nobuko Takahashi, Noboru Kunimine, Satoshi Shioda, Mikiko Hojo
  • Patent number: 6149967
    Abstract: A method for forming a protective layer for a dielectric material in an alternating current type plasma display is provided. In this connection, a coating sol solution is provided which can form a protective layer on a large area substrate without the need to introduce any expensive equipment, the protective layer thus formed being excellent in properties such as strength, adhesion, transparency, and protective properties and capable of being formed by a sol-gel process without use of the conventional vacuum process. The sol solution comprises a dispersion of a precursor to magnesium oxide in a specific form. A method for film formation, using this solution is also provided.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: November 21, 2000
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Satoshi Mitamura, Toshio Yoshihara, Nobuko Takahashi
  • Patent number: 5976236
    Abstract: There are provided a coating composition that can satisfactorily form a film even at a low temperature by chemical means in a simple and stable manner, has excellent film strength, adhesion, protective effect and other properties in the form of a functional film and can form a functional film at a low cost, a process for producing the coating composition, a functional film, and a process for producing the functional films.A hydrolyzable reaction site is partially hydrolyzed to prepare a sol of a partial hydrolyzate which is then coated on a substrate. The coating is then baked to prepare a corresponding metal oxide film, thereby forming a thin protective layer. Since no hydrolyzate is precipitated in the sol of the partial hydrolyzate, excellent film strength, adhesion, protective effect and other properties are offered.
    Type: Grant
    Filed: March 26, 1996
    Date of Patent: November 2, 1999
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Toshio Yoshihara, Nobuko Takahashi, Satoshi Mitamura
  • Patent number: 4904470
    Abstract: An antibiotic F-0769 having the following properties:(1) Outer appearance: White or light yellow powder,(2) Melting point: 245.degree.-250.degree. C.,(3) Specific rotation: [.alpha.].sub.D.sup.25 =-37.5.degree. (c=1, methanol),(4) Solubility in solvents: Soluble in methanol, ethanol, acetone, chloroform, ethyl acetate and benzene; and insoluble in water and hexane,(5) Elementary analysis (found %): C:57.53, H:7.36, O:21.17, N:12.97,(6) Ultraviolet absorption spectrum (as measured in methanol: As shown in FIG. 1, .lambda.max(E.sub.1 cm.sup.1%)=213 nm (466), 286 nm (200)(7) Infrared absorption spectrum (as measured by KBr method): As shown in FIG. 2,(8) Nuclear magnetic resonance spectra (as measured in heavy chloroform): .sup.1 H-NMR spectrum is as shown in FIG. 3, and .sup.13 C-NMR spectrum is as shown in FIG. 4,(9) Distinction among basicity, acidity and neutrality: Neutral substance,(10) Amino acid analysis: As a result of the hydrolysis with 6N hydrochloric acid at 110.degree. C.
    Type: Grant
    Filed: March 3, 1987
    Date of Patent: February 27, 1990
    Assignee: Kaken Pharmaceutical Company, Ltd.
    Inventors: Hideo Sugawara, Tomonori Takashina, Nobuko Takahashi, Machiko Sugiyama, Akio Seino, Yukio Miyazaki