Patents by Inventor Tsutomu Minami

Tsutomu Minami 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: 8501270
    Abstract: It is an object to provide an optical transparent member capable of maintaining a high-performance antireflection effect for a base over a long period of time, and an optical system using the same, specifically an optical transparent member including on a base a layer containing SiO2 as a main component, a layer containing Al2O3 as a main component, and a plate crystal layer formed from plate crystals containing Al2O3 as a main component, wherein the surface of the plate crystal layer has a shape of irregularities, and an optical system using the same.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: August 6, 2013
    Assignees: Canon Kabushiki Kaisha, Osaka Prefecture University
    Inventors: Masayuki Yamada, Yoshinori Kotani, Hiroyuki Tanaka, Takeharu Okuno, Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga
  • Publication number: 20110189389
    Abstract: It is an object to provide an optical transparent member capable of maintaining a high-performance antireflection effect for a base over a long period of time, and an optical system using the same, specifically an optical transparent member including on a base a layer containing SiO2 as a main component, a layer containing Al2O3 as a main component, and a plate crystal layer formed from plate crystals containing Al2O3 as a main component, wherein the surface of the plate crystal layer has a shape of irregularities, and an optical system using the same.
    Type: Application
    Filed: April 13, 2011
    Publication date: August 4, 2011
    Applicants: CANON KABUSHIKI KAISHA, OSAKA PREFECTURE UNIVERSITY
    Inventors: Masayuki Yamada, Yoshinori Kotani, Hiroyuki Tanaka, Takeharu Okuno, Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga
  • Patent number: 7931936
    Abstract: It is an object to provide an optical transparent member capable of maintaining a high-performance antireflection effect for a base over a long period of time, and an optical system using the same, specifically an optical transparent member including on a base a layer containing SiO2 as a main component, a layer containing Al2O3 as a main component, and a plate crystal layer formed from plate crystals containing Al2O3 as a main component, wherein the surface of the plate crystal layer has a shape of irregularities, and an optical system using the same.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: April 26, 2011
    Assignees: Canon Kabushiki Kaisha, Osaka Prefecture University
    Inventors: Masayuki Yamada, Yoshinori Kotani, Hiroyuki Tanaka, Takeharu Okuno, Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga
  • Patent number: 7811684
    Abstract: It is an object to provide an optical transparent member capable of maintaining a high-performance antireflection effect for a base over a long period of time, and an optical system using the same, specifically an optical transparent member including on a base a layer containing SiO2 as a main component, a layer containing Al2O3 as a main component, and a plate crystal layer formed from plate crystals containing Al2O3 as a main component, wherein the surface of the plate crystal layer has a shape of irregularities, and an optical system using the same.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: October 12, 2010
    Assignees: Canon Kabushiki Kaisha, Osaka Prefecture University
    Inventors: Masayuki Yamada, Yoshinori Kotani, Hiroyuki Tanaka, Takeharu Okuno, Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga
  • Publication number: 20090081361
    Abstract: It is an object to provide an optical transparent member capable of maintaining a high-performance antireflection effect for a base over a long period of time, and an optical system using the same, specifically an optical transparent member including on a base a layer containing SiO2 as a main component, a layer containing Al2O3 as a main component, and a plate crystal layer formed from plate crystals containing Al2O3 as a main component, wherein the surface of the plate crystal layer has a shape of irregularities, and an optical system using the same.
    Type: Application
    Filed: October 24, 2008
    Publication date: March 26, 2009
    Applicants: CANON KABUSHIKI KAISHA, OSAKA PREFECTURE UNIVERESITY
    Inventors: Masayuki Yamada, Yoshinori Kotani, Hiroyuki Tanaka, Takeharu Okuno, Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga
  • Publication number: 20090022954
    Abstract: A transparent antireflection film, including fine irregularities mainly composed of alumina, and a transparent thin film layer supporting the fine irregularities, in which the transparent thin film layer contains at least one selected from the group consisting of zirconia, silica, titania, and zinc oxide. A production method for the aforementioned transparent antireflection film, including: forming a multicomponent film using an application liquid containing at least one compound selected from the group consisting of a zirconium compound, a silicon compound, a titanium compound, and a zinc compound, and at least an aluminum compound; and subjecting the multicomponent film to warm water treatment.
    Type: Application
    Filed: September 24, 2008
    Publication date: January 22, 2009
    Applicants: CANON KABUSHIKI KAISHA, OSAKA PREFECTURE UNIVERSITY
    Inventors: Yoshinori Kotani, Masayuki Yamada, Zuyi Zhang, Makoto Kubota, Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga, Atsunori Matsuda
  • Publication number: 20060240288
    Abstract: A titania nanosheet alignment thin film whose main components are silica and titania, wherein titania nanosheets of layer structure having a nanometer order size are dispersed on a surface thereof. The titania nanosheet alignment thin film not only exhibits high photocatalytic activity but also can maintain excellent ultrahydrophilic and anti-fogging properties for a prolonged period of time. Further, there are provided a process for producing the same and an article including the titania nanosheet alignment thin film.
    Type: Application
    Filed: January 24, 2006
    Publication date: October 26, 2006
    Inventors: Tsutomu Minami, Toshihiro Kogure, Masahiro Tatsumisago, Kiyoharu Tadanaga, Atsunori Matsuda
  • Publication number: 20060199040
    Abstract: It is an object to provide an optical transparent member capable of maintaining a high-performance antireflection effect for a base over a long period of time, and an optical system using the same, specifically an optical transparent member including on a base a layer containing SiO2 as a main component, a layer containing Al2O3 as a main component, and a plate crystal layer formed from plate crystals containing Al2O3 as a main component, wherein the surface of the plate crystal layer has a shape of irregularities, and an optical system using the same.
    Type: Application
    Filed: February 17, 2006
    Publication date: September 7, 2006
    Applicants: CANON KABUSHIKI KAISHA, OSAKA PREFECTURE UNIVERSITY
    Inventors: Masayuki Yamada, Yoshinori Kotani, Hiroyuki Tanaka, Takeharu Okuno, Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga
  • Patent number: 7029831
    Abstract: A process for producing an optical element which has excellent heat resistance and adhesion to a substrate. This process comprises applying a liquid composition for forming an optical element to the molding surface of a substrate having a regular pattern surface consisting of areas having high wettability and areas having low wettability as the molding surface and curing the composition to form projections in the areas having high wettability. A solution containing at least one compound selected from the group consisting of a hydrolyzable compound which can be hydrolyzed and polycondensed and a hydrolyzed/polycondensed product thereof is used as the liquid composition for forming an optical element.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: April 18, 2006
    Assignees: Nippon Sheet Glass Co., Ltd.
    Inventors: Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga, Atsunori Matsuda, Mitsuhiro Kawazu, Hiroaki Yamamoto, Koichiro Nakamura
  • Publication number: 20050233113
    Abstract: A transparent antireflection film, including fine irregularities mainly composed of alumina, and a transparent thin film layer supporting the fine irregularities, in which the transparent thin film layer contains at least one selected from the group consisting of zirconia, silica, titania, and zinc oxide. A production method for the aforementioned transparent antireflection film, including: forming a multicomponent film using an application liquid containing at least one compound selected from the group consisting of a zirconium compound, a silicon compound, a titanium compound, and a zinc compound, and at least an aluminum compound; and subjecting the multicomponent film to warm water treatment.
    Type: Application
    Filed: February 16, 2005
    Publication date: October 20, 2005
    Applicants: Canon Kabushiki Kaisha, Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga, Atsunori Matsuda
    Inventors: Yoshinori Kotani, Masayuki Yamada, Zuyi Zhang, Makoto Kubota, Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga, Atsunori Matsuda
  • Publication number: 20050146265
    Abstract: A water-repellent/oil-repellent material that is decomposed to disappear by light irradiation is used to eliminate a water-repellent/oil-repellent layer on ITO electrodes. By forming light emitting layers in regions subjected to the elimination, patterning is carried out.
    Type: Application
    Filed: November 7, 2002
    Publication date: July 7, 2005
    Inventors: Takashi Fukuchi, Shinzo Tsuboi, Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga, Atsunori Matsuda
  • Publication number: 20050129927
    Abstract: A method for producing a transparent thin film which comprises forming a gel film containing a composite metal oxide or hydroxide of a titanium compound and a silicon alkoxide from a solution containing a silicon alkoxide and a titanium compound having hydrolizability, and subjecting the gel film to a warm water treatment, to thereby precipitate titania crystallites of anatase-type and/or of a crystal phase having a lattice spacing of about 0.7 nm on the surface of the thin film. The method can be used for producing a novel transparent thin film exhibiting high photocatalyst activity and super hydrophilicity as well as high light transparency, without the need for a high temperature treatment.
    Type: Application
    Filed: October 5, 2001
    Publication date: June 16, 2005
    Inventors: Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga, Atsunori Matsuda
  • Publication number: 20050042375
    Abstract: A titania nanosheet alignment thin film whose main components are silica and titania, wherein titania nanosheets of layer structure having a nanometer order size are dispersed on a surface thereof. The titania nanosheet alignment thin film not only exhibits high photocatalytic activity but also can maintain excellent ultrahydrophilic and anti-fogging properties for a prolonged period of time. Further, there are provided a process for producing the same and an article including the titania nanosheet alignment thin film.
    Type: Application
    Filed: February 28, 2003
    Publication date: February 24, 2005
    Applicant: Japan Science and Technology Agency
    Inventors: Tsutomu Minami, Toshihiro Kogure, Masahiro Tatsumisago, Kiyoharu Tadanaga, Atsunori Matsuda
  • Patent number: 6849209
    Abstract: An article with a predetermined surface pattern that is coated with a film which makes possible the complete transfer of the pattern of a patterning die and thick-film patterning having a depth to the order of several tens of micrometers, prevents the occurrence of cracks, has high film hardness, and has a surface pattern which is the inverse of the surface pattern of the patterning die. This article is produced by joining a patterning die closely to a substrate with a sol-gel material containing the silane compound represented by the formula: R1SiX3 (wherein R1 is an alkyl group or hydrogen and X is an alkoxyl group or a halogen atom) and the silane compound represented by the formula: R2SiY3 (wherein R2 is an aryl group or a substituted aryl group and Y is an alkoxyl group or a halogen atom) disposed therebetween in the form of a film and heating them to coat the surface of the substrate with a gel film having a surface pattern which is the inverse of the surface pattern of the patterning die.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: February 1, 2005
    Assignees: Nippon Sheet Glass Co., Ltd.
    Inventors: Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga, Atsunori Matsuda, Masahiro Hori, Koichiro Nakamura, Hiroaki Yamamoto
  • Patent number: 6849350
    Abstract: An article having a predetermined surface configuration comprising a substrate and a gelled film having a high refractive index, excellent heat resistance, high film hardness and excellent transferability formed on the surface of the substrate. A process for producing an article having a gelled film with a transferred surface on the surface of a substrate by arranging a sol-gel material with close contact between the substrate and a mold in the form of a film and heating it. The sol-gel material contains a metal compound represented by M1Xm, a hydrolyzate thereof or a hydrolysis/polycondensation product thereof, and a metal compound represented by R1M2Yn, a hydrolyzate thereof or a hydrolysis/polycondensation product thereof, wherein at least one of M1 and M2 is a metal atom selected from Ti, Zr, Al, Ge, Sn or Sb and the metal atom accounts for at least 10 atom % of the total of M1 and M2.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: February 1, 2005
    Assignees: Nippon Sheet Glass Co., Ltd.
    Inventors: Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga, Atsunori Matsuda, Masahiro Hori, Hiroaki Yamamoto, Koichiro Nakamura
  • Patent number: 6723487
    Abstract: There can be provided a method for producing a pattern film-coated article which has excellent film formability, can remove unexposed portions of a film completely in the development step after exposing the film to light. and has excellent pattern accuracy; and a photosensitive composition. The method for producing a pattern film-coated article comprises the steps of coating a photosensitive composition comprising an organometallic or organosilicon compound having photosensitivity and a hydrolyzable metal or silicon alkoxide on a substrate, irradiating the coated film on the substrate with light to polymerize the exposed portions of the coated film and then dissolving unexposed portions to remove them, wherein a pattern film-coated article is produced from an allyl group-containing metal or silicon alkoxide as the organometallic or organosilicon compound.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: April 20, 2004
    Assignees: Nippon Sheet Glass Co., Ltd.
    Inventors: Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga, Atsunori Matsuda, Mitsuhiro Kawadu, Koichiro Nakamura, Hiroaki Yamamoto
  • Publication number: 20030146415
    Abstract: An article having a predetermined surface configuration comprising a substrate and a gelled film having a high refractive index, excellent heat resistance, high film hardness and excellent transferability formed on the surface of the substrate.
    Type: Application
    Filed: October 28, 2002
    Publication date: August 7, 2003
    Inventors: Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga, Atsunori Matsuda, Masahiro Hori, Hiroaki Yamamoto, Koichiro Nakamura
  • Publication number: 20030124467
    Abstract: A process for producing an optical element which has excellent heat resistance and adhesion to a substrate. This process comprises applying a liquid composition for forming an optical element to the molding surface of a substrate having a regular pattern surface consisting of areas having high wettability and areas having low wettability as the molding surface and curing the composition to form projections in the areas having high wettability. A solution containing at least one compound selected from the group consisting of a hydrolyzable compound which can be hydrolyzed and polycondensed and a hydrolyzed/polycondensed product thereof is used as the liquid composition for forming an optical element.
    Type: Application
    Filed: October 31, 2002
    Publication date: July 3, 2003
    Inventors: Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga, Atsunori Matsuda, Mitsuhiro Kawazu, Hiroaki Yamamoto, Koichiro Nakamura
  • Patent number: 6517901
    Abstract: The invention is about a process for depositing via the sol-gel route a continuous or discontinuous layer based on metal oxide(s) on a substrate (1), especially a transparent substrate, which includes at least the following steps: (a)—preparation of a sol from at least one metal precursor, at least one chelating/stabilizing agent, optionally at least one solvent and/or at least one dopant precursor, (b)—deposition of the sol as a layer on at least part of one of the faces of the substrate (1), (c)—irradiation by ultraviolet rays of at least part of the sol deposited as a layer on the substrate (1), (d)—heat treatment of at least that part of the sol which was irradiated by the ultraviolet rays.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: February 11, 2003
    Assignee: Saint-Gobain Vitrage
    Inventors: Tsutomu Minami, Kiyoharu Tadanaga
  • Publication number: 20020160298
    Abstract: There can be provided a method for producing a pattern film-coated article which has excellent film formability, can remove unexposed portions of a film completely in the development step after exposing the film to light. and has excellent pattern accuracy; and a photosensitive composition.
    Type: Application
    Filed: September 12, 2001
    Publication date: October 31, 2002
    Inventors: Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga, Atsunori Matsuda, Mitsuhiro Kawadu, Koichiro Nakamura, Hiroaki Yamamoto