Patents by Inventor Chikao Mamiya

Chikao Mamiya 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: 9263677
    Abstract: A method for manufacturing a transparent gas barrier film for an organic electroluminescence element having a substrate with a gas barrier layer thereon. The gas barrier layer is formed on the substrate by plasma CVD using an organic silicon compound as a raw material gas and an oxygen gas as a decomposition gas. Formation of the gas barrier layer is carried out so that a carbon content of the gas barrier layer in the thickness direction repeatedly changes more than two times from high value, via intermediate value, low value and intermediate value, to high value.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: February 16, 2016
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Kazuhiro Fukuda, Toshio Tsuji, Chikao Mamiya, Hiroaki Arita
  • Patent number: 8980007
    Abstract: Disclosed is a thin film forming apparatus which is a plasma discharge processing apparatus for performing a plasma discharge processing on the surface of a continuously transported base at or near atmospheric pressure, wherein a reverse flow of the processing gas is prevented and thus a thin film having good quality is formed by a uniform gas flow. The thin film forming apparatus is characterized by having an auxiliary gas discharge means for discharging an auxiliary gas for preventing a reverse flow of the processing gas. Also disclosed are a thin film forming method, and a thin film.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: March 17, 2015
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Chikao Mamiya, Ichiro Kudo, Masanobu Suzuki, Kiyoshi Oishi, Daishi Yamashita
  • Publication number: 20140255288
    Abstract: A gas barrier laminate comprising a substrate having thereon at least a gas barrier layer and a polymer layer, wherein at least one polymer layer is provided adjacent to at least one gas barrier layer; and an average carbon content of the polymer layer at a contact interface between the gas barrier layer is lower than an average carbon content in the polymer layer.
    Type: Application
    Filed: May 5, 2014
    Publication date: September 11, 2014
    Applicant: KONICA MINOLTA, INC.
    Inventors: Hiroaki ARITA, Toshio TSUJI, Chikao MAMIYA, Kazuhiro FUKUDA
  • Publication number: 20140170423
    Abstract: A transparent gas barrier film comprising a substrate having thereon a gas barrier layer comprising at least a low density layer and a high density layer, wherein one or more intermediate density layers are sandwiched between the low density layer and the high density layer.
    Type: Application
    Filed: November 22, 2013
    Publication date: June 19, 2014
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Kazuhiro FUKUDA, Toshio Tsuji, Chikao Mamiya, Hiroaki Arita
  • Patent number: 8748003
    Abstract: A gas barrier laminate comprising a substrate having thereon at least a gas barrier layer and a polymer layer, wherein at least one polymer layer is provided adjacent to at least one gas barrier layer; and an average carbon content of the polymer layer at a contact interface between the gas barrier layer is lower than an average carbon content in the polymer layer.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: June 10, 2014
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Hiroaki Arita, Toshio Tsuji, Chikao Mamiya, Kazuhiro Fukuda
  • Patent number: 8652625
    Abstract: A transparent gas barrier film comprising a substrate having thereon a gas barrier layer comprising at least a low density layer and a high density layer, wherein one or more intermediate density layers are sandwiched between the low density layer and the high density layer.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: February 18, 2014
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Kazuhiro Fukuda, Toshio Tsuji, Chikao Mamiya, Hiroaki Arita
  • Patent number: 8486487
    Abstract: A gas barrier film comprising a resin substrate provided thereon at least one layer of a ceramic film, wherein the density ratio Y (=?f/?b) satisfies 1?Y?0.95 and the ceramic film has a residual stress being a compression stress of 0.01 MPa or more and 100 Mpa or less, wherein ?f is the density of the ceramic film and ?b is the density of a comparative ceramic film being formed by thermal oxidation or thermal nitridation of a metal as a mother material of the ceramic film so as to being the same composition ratio of the ceramic film.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: July 16, 2013
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Kazuhiro Fukuda, Chikao Mamiya, Hiroaki Arita
  • Publication number: 20110300770
    Abstract: A gas barrier film comprising a resin substrate provided thereon at least one layer of a ceramic film, wherein the density ratio Y (=?f/?b) satisfies 1?Y?0.95 and the ceramic film has a residual stress being a compression stress of 0.01 MPa or more and 100 Mpa or less, wherein ?f is the density of the ceramic film and ?b is the density of a comparative ceramic film being formed by thermal oxidation or thermal nitridation of a metal as a mother material of the ceramic film so as to being the same composition ratio of the ceramic film.
    Type: Application
    Filed: August 19, 2011
    Publication date: December 8, 2011
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Kazuhiro FUKUDA, Chikao MAMIYA, Hiroaki ARITA
  • Patent number: 8062707
    Abstract: A gas barrier film comprising a resin substrate provided thereon at least one layer of a ceramic film, wherein the density ratio Y (=?f/?b) satisfies 1?Y?0.95 and the ceramic film has a residual stress being a compression stress of 0.01 MPa or more and 100 Mpa or less, wherein ?f is the density of the ceramic film and ?b is the density of a comparative ceramic film being formed by thermal oxidation or thermal nitridation of a metal as a mother material of the ceramic film so as to being the same composition ratio of the ceramic film.
    Type: Grant
    Filed: February 7, 2006
    Date of Patent: November 22, 2011
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Kazuhiro Fukuda, Chikao Mamiya, Hiroaki Arita
  • Publication number: 20100159156
    Abstract: Disclosed is a thin film forming apparatus which is a plasma discharge processing apparatus for performing a plasma discharge processing on the surface of a continuously transported base at or near atmospheric pressure, wherein a reverse flow of the processing gas is prevented and thus a thin film having good quality is formed by a uniform gas flow. The thin film forming apparatus is characterized by having an auxiliary gas discharge means for discharging an auxiliary gas for preventing a reverse flow of the processing gas. Also disclosed are a thin film forming method, and a thin film.
    Type: Application
    Filed: June 25, 2007
    Publication date: June 24, 2010
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Chikao Mamiya, Ichiro Kudo, Masanobu Suzuki, Kiyoshi Oishi, Daishi Yamashita
  • Patent number: 7740917
    Abstract: A method for forming a film comprising a first process and a second process, the first process comprising the steps of: supplying a discharge gas to a first discharge space where high frequency electric field A is generated at or near atmospheric pressure, whereby the discharge gas is excite; transferring energy of the excited discharge gas to a film forming gas, whereby the film forming gas is excited; and exposing a substrate to the film forming gas to form a film on the substrate, and the second process comprising the steps of: supplying a gas containing an oxidizing gas to a second discharge space where high frequency electric field B is generated at or near atmospheric pressure, whereby the gas containing the oxidizing gas is excite; and the film formed in the first process is exposed to the excited gas containing the oxidizing gas.
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: June 22, 2010
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Hiromoto Ii, Toshio Tsuji, Chikao Mamiya, Kazuhiro Fukuda, Kiyoshi Oishi, Takakazu Kiyomura
  • Publication number: 20090311498
    Abstract: An objective of the present invention is to provide a transparent conductive film exhibiting excellent adhesion to a substrate and excellent crack resistance, together with high transparency and conductivity. Also disclosed is a transparent conductive film comprising a substrate having thereon: a low density metal oxide layer made of metal oxide, and a high density metal oxide layer made of metal oxide that are alternately laminated layer by layer, wherein the transparent conductive film satisfies a condition specified by the following inequality (1); 1.01?M2/M1?1.400??(1), provided that a density of the low density metal oxide layer and a density of the high density metal oxide layer are represented by M1 and M2, respectively.
    Type: Application
    Filed: September 14, 2005
    Publication date: December 17, 2009
    Inventors: Takakazu Kiyomura, Toshio Tsuji, Atsushi Saito, Chikao Mamiya, Ichiro Kudo
  • Publication number: 20090053526
    Abstract: A gas barrier laminate comprising a substrate having thereon at least a gas barrier layer and a polymer layer, wherein at least one polymer layer is provided adjacent to at least one gas barrier layer; and an average carbon content of the polymer layer at a contact interface between the gas barrier layer is lower than an average carbon content in the polymer layer.
    Type: Application
    Filed: August 30, 2005
    Publication date: February 26, 2009
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Hiroaki Arita, Toshio Tsuji, Chikao Mamiya, Kazuhiro Fukuda
  • Publication number: 20090051272
    Abstract: A gas barrier film comprising a resin substrate provided thereon at least one layer of a ceramic film, wherein the density ratio Y (=?f/?b) satisfies 1?Y?0.95 and the ceramic film has a residual stress being a compression stress of 0.01 MPa or more and 100 Mpa or less, wherein ?f is the density of the ceramic film and ?b is the density of a comparative ceramic film being formed by thermal oxidation or thermal nitridation of a metal as a mother material of the ceramic film so as to being the same composition ratio of the ceramic film.
    Type: Application
    Filed: February 7, 2006
    Publication date: February 26, 2009
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Kazuhiro Fukuda, Chikao Mamiya, Hiroaki Arita
  • Publication number: 20080085418
    Abstract: A transparent gas barrier film comprising a substrate having thereon a gas barrier layer comprising at least a low density layer and a high density layer, wherein one or more intermediate density layers are sandwiched between the low density layer and the high density layer.
    Type: Application
    Filed: September 7, 2005
    Publication date: April 10, 2008
    Inventors: Kazuhiro Fukuda, Toshio Tsuji, Chikao Mamiya, Hiroaki Arita
  • Publication number: 20060199014
    Abstract: A method for forming a film comprising a first process and a second process, the first process comprising the steps of: supplying a discharge gas to a first discharge space where high frequency electric field A is generated at or near atmospheric pressure, whereby the discharge gas is excite; transferring energy of the excited discharge gas to a film forming gas, whereby the film forming gas is excited; and exposing a substrate to the film forming gas to form a film on the substrate, and the second process comprising the steps of: supplying a gas containing an oxidizing gas to a second discharge space where high frequency electric field B is generated at or near atmospheric pressure, whereby the gas containing the oxidizing gas is excite; and the film formed in the first process is exposed to the excited gas containing the oxidizing gas.
    Type: Application
    Filed: July 8, 2004
    Publication date: September 7, 2006
    Inventors: Hiromoto II, Toshio Tsuji, Chikao Mamiya, Kazuhiro Fukuda, Kiyoshi Oishi, Takakazu Kiyomura
  • Patent number: 7037553
    Abstract: A method for producing an ink-jet recording medium, comprising the steps of: (a) shear processing a dispersion of pigment particles at a shear rate of 103 to 105 s?1; (b) mixing the dispersion of pigment particles with a water-soluble polymer to obtain a coating composition; and (c) applying the coating composition onto a surface of a support.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: May 2, 2006
    Assignee: Konica Corporation
    Inventors: Kiyoshi Endo, Chikao Mamiya, Tomohiko Sakai, Masako Kikuchi
  • Publication number: 20030095172
    Abstract: A method for producing an ink-jet recording medium, comprising the steps of: (a) shear processing a dispersion of pigment particles at a shear rate of 103 to 105 s−1; (b) mixing the dispersion of pigment particles with a water-soluble polymer to obtain a coating composition; and (c) applying the coating composition onto a surface of a support.
    Type: Application
    Filed: July 23, 2002
    Publication date: May 22, 2003
    Inventors: Kiyoshi Endo, Chikao Mamiya, Tomohiko Sakai, Masako Kikuchi
  • Patent number: 5605790
    Abstract: Disclosed is a method of producing a silver halide photographic emulsion comprising steps of:(a) forming fine-grain silver halide emulsion in a mixing vessel B separately provided from a reaction vessel A,(b) removing unnecessary ions contained in said fine-grain silver halide emulsion,(c) supplying the fine-grain silver halide emulsion to said reaction vessel A,(d) forming nucleation of a silver halide grain in said reaction vessel A, and(e) forming crystal growth of the silver halide grain in said reaction vessel A.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: February 25, 1997
    Assignee: Konica Corporation
    Inventors: Yumiko Nimura, Chikao Mamiya, Haruhiko Masutomi, Kazuyoshi Ichikawa
  • Patent number: 5523201
    Abstract: A desalting method of a silver halide emulsion is disclosed, comprising removing soluble salts from the silver halide emulsion by electrodialysis, wherein said electrodialysis is carried out at a pH within a range of .+-.0.5 of an isoelectric point of a gelatin contained in the silver halide emulsion. Furthermore, by adding a salt during the course of the electrodialysis, the concentration of the emulsion is accomplished concurrently with desalting thereof.
    Type: Grant
    Filed: March 28, 1995
    Date of Patent: June 4, 1996
    Assignee: Konica Corporation
    Inventors: Yumiko Nimura, Kazuyoshi Ichikawa, Haruhiko Masutomi, Chikao Mamiya