Patents by Inventor Kuninori Okamoto

Kuninori Okamoto 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: 11508862
    Abstract: The invention discloses a conductive paste for forming the electrode on the surface of solar cell, which contains conductive powder, mixed glass and organic phase; wherein, the mixed glass comprises the following two types of glass components: the first type of glass is at least one selected from the tellurium glass which does not contain lead substantially and having tellurium, bismuth, lithium as the essential component; The second type of glass is at least one kind of lead silicate glass, which having lead and silicon as essential components and does not contain tellurium substantially. The invention also provides a solar cell prepared by printing the conductive paste as a surface electrode and a manufacturing method of the solar cell.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: November 22, 2022
    Assignee: Changzhou Fusion New Material Co., Ltd.
    Inventors: Kuninori Okamoto, Haidong Liu, Yichao Ren, Changjun Xiong, Zhikai Xiong, Ansong Jiang, Li Wan, Tingting Mu
  • Publication number: 20210057596
    Abstract: The invention discloses a conductive paste for forming the electrode on the surface of solar cell, which contains conductive powder, mixed glass and organic phase; wherein, the mixed glass comprises the following two types of glass components: the first type of glass is at least one selected from the tellurium glass which does not contain lead substantially and having tellurium, bismuth, lithium as the essential component; The second type of glass is at least one kind of lead silicate glass, which having lead and silicon as essential components and does not contain tellurium substantially. The invention also provides a solar cell prepared by printing the conductive paste as a surface electrode and a manufacturing method of the solar cell.
    Type: Application
    Filed: March 25, 2020
    Publication date: February 25, 2021
    Inventors: Kuninori OKAMOTO, Haidong LIU, Yichao REN, Changjun XIONG, Zhikai XIONG, Ansong JIANG, Li WAN, Tingting MU
  • Publication number: 20150021527
    Abstract: A composition for solar cell electrodes includes a conductive powder, a glass frit, an organic vehicle, and a thermosetting resin, the thermosetting resin being present in an amount of about 0.5 wt % to about 30 wt % based on a total weight of the composition.
    Type: Application
    Filed: April 22, 2014
    Publication date: January 22, 2015
    Inventors: Dong Il SHIN, Kuninori OKAMOTO, Hee In NAM
  • Patent number: 8587198
    Abstract: A rear panel for a plasma display panel (PDP) includes a substrate, and an address electrode on the substrate, the address electrode including an aluminum containing layer and a silver containing layer stacked on each other.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: November 19, 2013
    Assignee: Cheil Industries, Inc.
    Inventors: Dong Il Shin, Chang Won Park, Ryun Min Heo, Kuninori Okamoto, Min Su Park, Won Hee Lee
  • Patent number: 8343384
    Abstract: Disclosed herein is a composition for electrodes that enables a firing process in air at a temperature of 600° C. or less and does not cause an increase in absolute resistance and a substantial variation of the resistance even when the composition is repeatedly subjected to the firing process. The composition for electrodes comprises: about 5 to about 95% by weight of aluminum powder, the aluminum powder having a particle size distribution of about 2.0 or less as expressed by the following Equation (1) and having D50 in the range of about 0.1 ?m?D50?about 20 ?m; about 3 to about 60% by weight of an organic binder; and the balance of a solvent: Particle size distribution=(D90?D10)/D50??(1) wherein D10, D50, and D90 represent particle diameters at 10%, 50% and 90% points on an accumulation curve of a particle size distribution when the total weight is 100%. An electrode and a PDP fabricated using the composition are also disclosed.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: January 1, 2013
    Assignee: Cheil Industries Inc.
    Inventors: Jae Hwi Cho, Kuninori Okamoto, Yong Hyun Kim, Hyun Don Kim
  • Publication number: 20120223637
    Abstract: A rear panel for a plasma display panel (PDP) includes a substrate, and an address electrode on the substrate, the address electrode including an aluminum containing layer and a silver containing layer stacked on each other.
    Type: Application
    Filed: September 23, 2011
    Publication date: September 6, 2012
    Inventors: Dong Il Shin, Chang Won Park, Ryun Min Heo, Kuninori Okamoto, Min Su Park, Won Hee Lee
  • Publication number: 20120077307
    Abstract: An etching paste having a doping function for etching a thin film on a silicon wafer and a method of forming a selective emitter of a solar cell, the etching paste including an n-type or p-type dopant; a binder; and a solvent.
    Type: Application
    Filed: December 7, 2011
    Publication date: March 29, 2012
    Inventors: Dong Jun KIM, Kuninori Okamoto, Byung Chul Lee, Seok Hyun Jung
  • Publication number: 20110273086
    Abstract: Disclosed herein is a composition for electrodes that enables a firing process in air at a temperature of 600° C. or less and does not cause an increase in absolute resistance and a substantial variation of the resistance even when the composition is repeatedly subjected to the firing process. The composition for electrodes comprises: about 5 to about 95% by weight of aluminum powder, the aluminum powder having a particle size distribution of about 2.0 or less as expressed by the following Equation (1) and having D50 in the range of about 0.1 ?m?D50?about 20 ?m; about 3 to about 60% by weight of an organic binder; and the balance of a solvent: Particle size distribution=(D90?D10)/D50??(1) wherein D10, D50, and D90 represent particle diameters at 10%, 50% and 90% points on an accumulation curve of a particle size distribution when the total weight is 100%. An electrode and a PDP fabricated using the composition are also disclosed.
    Type: Application
    Filed: July 20, 2011
    Publication date: November 10, 2011
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Jae Hwi CHO, Kuninori OKAMOTO, Yong Hyun KIM, Hyun Don KIM
  • Patent number: 8043532
    Abstract: Disclosed herein is a composition for electrodes that enables a firing process in air at a temperature of 600° C. or less and does not cause an increase in absolute resistance and a substantial variation of the resistance even when the composition is repeatedly subjected to the firing process. The composition for electrodes comprises: about 5 to about 95% by weight of aluminum powder, the aluminum powder having a particle size distribution of about 2.0 or less as expressed by the following Equation (1) and having D50 in the range of about 0.1 ?m?D50?about 20 ?m; about 3 to about 60% by weight of an organic binder; and the balance of a solvent: Particle size distribution=(D90?D10)/D50??(1) wherein D10, D50, and D90 represent particle diameters at 10%, 50% and 90% points on an accumulation curve of a particle size distribution when the total weight is 100%. An electrode and a PDP fabricated using the composition are also disclosed.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: October 25, 2011
    Assignee: Cheil Industries Inc.
    Inventors: Jae Hwi Cho, Kuninori Okamoto, Yong Hyun Kim, Hyun Don Kim
  • Patent number: 8003018
    Abstract: A composition for fabricating an electrode includes an organic binder and a conductive filler. About 3 to about 60 wt. % of the composition is the organic binder, about 5 to about 95 wt. % of the composition is the conductive filler, the conductive filler includes predominantly aluminum, the conductive filler has a flake shape, and the conductive filler has an average thickness of about 0.05 ?m to about 0.75 ?m.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: August 23, 2011
    Assignee: Cheil Industries, Inc.
    Inventors: Jae Hwi Cho, Kuninori Okamoto, Yong Hyun Kim, Hyun Don Kim
  • Patent number: 7951253
    Abstract: A method of manufacturing a display device, including providing a composition including a conductive material, an organic binder; a glass frit, and a solvent, wherein the organic binder has a glass transition temperature of about ?50° C. to about ?5° C., loading the composition into grooves of a gravure roll, transferring the composition from the grooves of the gravure roll onto a silicone rubber blanket roll, transferring the composition from the blanket roll onto a glass substrate, and drying and firing the composition transferred on the glass substrate to form an electrode.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: May 31, 2011
    Assignee: Cheil Industries, Inc.
    Inventors: Jae Joon Shim, Myung Sung Jung, Kuninori Okamoto, Yeong Seok Kim
  • Patent number: 7696692
    Abstract: Disclosed herein is a plasma display panel and a method of fabricating the same. The plasma display panel comprises a front glass substrate and a rear glass substrate. An electrode structure disposed between the front and rear glass substrates is prepared in such a way that a non-photosensitive black dielectric layer and a non-photosensitive or photosensitive electrode layer, formed on the front glass substrate, are subjected to heat treatment. The black dielectric layer is blackened at a lower surface by the heat treatment. Current flows between an upper electrode and a transparent electrode and it is possible to assure sufficiently low visibility even though costly metal particles are not used as conductive material on the front substrate of the plasma display panel. It is possible to use various types of black pigments thanks to non-photosensitivity, thus it is possible to fabricate a low-priced plasma display panel due to a reduced material cost.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: April 13, 2010
    Assignee: Cheil Industries, Inc.
    Inventors: Yeong Seok Kim, Kuninori Okamoto, Jae Joon Shim
  • Publication number: 20090159180
    Abstract: A method of manufacturing a display device, including providing a composition including a conductive material, an organic binder; a glass frit, and a solvent, wherein the organic binder has a glass transition temperature of about ?50° C. to about ?5° C., loading the composition into grooves of a gravure roll, transferring the composition from the grooves of the gravure roll onto a silicone rubber blanket roll, transferring the composition from the blanket roll onto a glass substrate, and drying and firing the composition transferred on the glass substrate to form an electrode.
    Type: Application
    Filed: February 19, 2009
    Publication date: June 25, 2009
    Inventors: Jae Joon Shim, Myung Sung Jung, Kuninori Okamoto, Yeong Seok Kim
  • Publication number: 20090134767
    Abstract: Disclosed herein is a composition for electrodes that enables a firing process in air at a temperature of 600° C. or less and does not cause an increase in absolute resistance and a substantial variation of the resistance even when the composition is repeatedly subjected to the firing process. The composition for electrodes comprises: about 5 to about 95% by weight of aluminum powder, the aluminum powder having a particle size distribution of about 2.0 or less as expressed by the following Equation (1) and having D50 in the range of about 0.1 ?m?D50?about 20 ?m; about 3 to about 60% by weight of an organic binder; and the balance of a solvent: Particle size distribution=(D90?D10)/D50 ??(1) wherein D10, D50, and D90 represent particle diameters at 10%, 50% and 90% points on an accumulation curve of a particle size distribution when the total weight is 100%. An electrode and a PDP fabricated using the composition are also disclosed.
    Type: Application
    Filed: November 21, 2008
    Publication date: May 28, 2009
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Jae Hwi CHO, Kuninori OKAMOTO, Yong Hyun KIM, Hyun Don KIM
  • Publication number: 20090108755
    Abstract: A composition for fabricating an electrode includes an organic binder and a conductive filler. About 3 to about 60 wt. % of the composition is the organic binder, about 5 to about 95 wt. % of the composition is the conductive filler, the conductive filler includes predominantly aluminum, the conductive filler has a flake shape, and the conductive filler has an average thickness of about 0.05 ?m to about 0.75 ?m.
    Type: Application
    Filed: October 10, 2008
    Publication date: April 30, 2009
    Inventors: Jae Hwi Cho, Kuninori Okamoto, Yong Hyun Kim, Hyun Don Kim
  • Publication number: 20060220556
    Abstract: Disclosed herein is a plasma display panel and a method of fabricating the same. The plasma display panel comprises a front glass substrate and a rear glass substrate. An electrode structure disposed between the front and rear glass substrates is prepared in such a way that a non-photosensitive black dielectric layer and a non-photosensitive or photosensitive electrode layer, formed on the front glass substrate, are subjected to heat treatment. The black dielectric layer is blackened at a surface in contact with the front glass substrate by the heat treatment. Current flows between an upper electrode and a transparent electrode and it is possible to assure sufficiently low visibility even though costly metal particles are not used as conductive material on the front substrate of the plasma display panel. It is possible to use various types of black pigments thanks to non-photosensitivity, thus it is possible to fabricate a low-priced plasma display panel due to a reduced material cost.
    Type: Application
    Filed: June 9, 2005
    Publication date: October 5, 2006
    Inventors: Yeong Kim, Kuninori Okamoto, Jae Shim
  • Patent number: 6103146
    Abstract: The invention relates to thick film conductor paste compositions with which thick film technology can be applied to aluminum nitride substrates and which can form a conductor as a thick film on a substrate by printing or coating and then firing and paste compositions as dispersions, which are obtained by dispersing a conductive powder and a boride in an organic medium.
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: August 15, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Kuninori Okamoto
  • Patent number: 5616173
    Abstract: A thick film paste composition used to apply a conductive pattern, comprising(a) spherical, non-coagulating fine particles of metallic silver having a surface area/weight ratio of at least 1.1 m.sup.2 /g and having a particle size of 1.0 .mu.m or less, and(b) fine particles of a glass frit having a softening point of 350.degree. to 620.degree. C. and contained in an amount of 2.1 weight parts or less per 100 weight parts of metallic silver,wherein (a) and (b) are dispersed in (c) an organic medium.
    Type: Grant
    Filed: October 17, 1995
    Date of Patent: April 1, 1997
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Kuninori Okamoto, Hideaki Kuno, Isamu Yaguchi, Jun Koishikawa, Yasuo Yamamoto
  • Patent number: 5296414
    Abstract: A crystallizable low melting glass consisting essentially of PbO, ZnO, B.sub.2 O.sub.3, GeO.sub.2 and optionally SiO.sub.2, SnO.sub.2 and a metal oxide colorant.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: March 22, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Seiichi Nakagawa, Kuninori Okamoto, Barry E. Taylor, Motohiko Tsuchiya