Patents by Inventor Takeshi Sampei

Takeshi Sampei 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: 9793761
    Abstract: A wireless power transmission system for wirelessly transmitting electric power from a power transmitting device to a power receiving device using magnetic field coupling between a power transmitting coil and a power receiving coil is provided. The power transmitting device includes a power transmitting circuit generating an electric signal for transmitting electric power, first and second power transmitting coils compatible with first and second transmission methods, respectively, a first magnetic substance on which the first power transmitting coil is placed, a second magnetic substance on which the second power transmitting coil is placed, and a power feeding surface on which the power receiving device is to be placed. First and second attachment surfaces of the first and second magnetic substances, respectively, are located on the lower side of the power feeding surface and arranged on a same plane surface parallel to the power feeding surface.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: October 17, 2017
    Assignee: ALPS ELECTRIC CO., LTD.
    Inventors: Takeshi Sampei, Masashi Tabata, Masaki Yamamoto
  • Publication number: 20150222148
    Abstract: A wireless power transmission system for wirelessly transmitting electric power from a power transmitting device to a power receiving device using magnetic field coupling between a power transmitting coil and a power receiving coil is provided. The power transmitting device includes a power transmitting circuit generating an electric signal for transmitting electric power, first and second power transmitting coils compatible with first and second transmission methods, respectively, a first magnetic substance on which the first power transmitting coil is placed, a second magnetic substance on which the second power transmitting coil is placed, and a power feeding surface on which the power receiving device is to be placed. First and second attachment surfaces of the first and second magnetic substances, respectively, are located on the lower side of the power feeding surface and arranged on a same plane surface parallel to the power feeding surface.
    Type: Application
    Filed: December 30, 2014
    Publication date: August 6, 2015
    Inventors: Takeshi SAMPEI, Masashi TABATA, Masaki YAMAMOTO
  • Publication number: 20090110832
    Abstract: The present invention provides an intermediate transfer member having higher transferability and higher cleaning properties and durability, an apparatus for producing an intermediate transfer member which does not require the provision of any large equipment such as vacuum equipment, and an image forming apparatus comprising the intermediate transfer member. The intermediate transfer member contains a support and, provided on the support, a first inorganic compound layer containing carbon atoms and a second inorganic compound layer as a surface layer, the second inorganic compound layer not containing any carbon atom or containing carbon atoms in a smaller amount than the carbon atoms in the first inorganic compound layer.
    Type: Application
    Filed: October 18, 2006
    Publication date: April 30, 2009
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventor: Takeshi Sampei
  • Patent number: 7223522
    Abstract: It is an object of the present invention to provide that printing plate materials of the present invention exhibit excellent printing durability, less “out of color” registration, and improved printing image quality. Disclosed is a printing plate material possessing an image formation layer on one surface of a polyester support and not less than two backing layers on the other surface, wherein at least one of the backing layers is an electrically conductive layer, at least one of the backing layer is a layer containing at least one resin selected from polyester resin, acryl resin, acryl modified polyester resin and cellulose ester resin provided on the electrically conductive layer, and at least one of the backing layers contains an organic matting agent.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: May 29, 2007
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventor: Takeshi Sampei
  • Publication number: 20060201357
    Abstract: A printing method in which printing is performed by including a mechanical sheet material between a printing plate material, which is provided with a hydrophilic layer and an image forming functional layer on the one surface of a plastic support and a back-coat layer on the other surface, and a plate drum of a printing machine, wherein the surface specific restance of the back coat layer side of said printing plate material is 1×109?2×1013 ?and the surface specific resistance of the surface of said mechanical sheet material in contact with the printing plate material is 1×109?2×1015 ?.
    Type: Application
    Filed: March 3, 2006
    Publication date: September 14, 2006
    Inventor: Takeshi Sampei
  • Patent number: 7086333
    Abstract: Disclosed are a printing plate material capable of being folded by heating, a printing process employing the printing plate material and a process of folding the printing plate material, the printing plate material comprising a support and provided thereon, an image formation layer, the support being a polyester sheet with a thickness dispersion of not more then 10%.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: August 8, 2006
    Assignee: Konica Minolta Holdings
    Inventors: Takeshi Sampei, Saburou Hiraoka
  • Patent number: 7078146
    Abstract: Disclosed are a planographic printing plate material comprising a plastic sheet support, and provided thereon, a hydrophilic layer, a silver halide emulsion layer, a physical developing nucleus-containing layer, and a backing layer, wherein the hydrophilic layer, the silver halide emulsion layer, and the physical developing nucleus-containing layer are provided on one side of the support, and the backing layer is provided on the other side of the sheet opposite the silver halide emulsion layer, and wherein a surface on the backing layer side has a specific resistance of from 1×1011 to 1×1013 ?, and a coefficient of dynamic friction of from 0.15 to 0.6, the coefficient of dynamic friction being one of the surface on the backing layer side to a stainless steel surface.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: July 18, 2006
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventor: Takeshi Sampei
  • Publication number: 20060107859
    Abstract: A printing process employing a processless printing plate material is disclosed, the process comprising the steps of (a) imagewise exposing a printing plate material comprising a support with a hydrophilic surface and an image formation layer provided on the hydrophilic surface, (b) mounting the exposed printing plate material on a plate cylinder of a printing press, (c) supplying a dampening solution and printing ink to the mounted printing plate material, whereby the image formation layer at non-image portions is removed to obtain a printing plate, and (d) further supplying the dampening solution and printing ink to the resulting printing plate, wherein the dampening solution contains water, a wetting property improving agent and a phosphorous compound in an amount of not more than 0.01 mol/liter, the dampening solution having a pH of from 4.5 to 8.0.
    Type: Application
    Filed: November 21, 2005
    Publication date: May 25, 2006
    Inventor: Takeshi Sampei
  • Patent number: 7021213
    Abstract: Disclosed is a printing method comprising the steps of mounting an underlay sheet on a plate cylinder of a printing press, and providing, on the underlay sheet, a printing plate material comprising a plastic sheet support, and provided thereon, a hydrophilic layer, an image formation layer and a backing layer, the backing layer being provided on the side of the support opposite the image formation layer, so that the backing layer side surface of the printing plate material contacts the underlay sheet surface, wherein a coefficient of dynamic friction of the backing layer side surface of the printing plate material to the underlay sheet surface is from 0.1 to 0.5.
    Type: Grant
    Filed: July 6, 2004
    Date of Patent: April 4, 2006
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventor: Takeshi Sampei
  • Publication number: 20060040207
    Abstract: It is an object of the present invention to provide that printing plate materials of the present invention exhibit excellent printing durability, less “out of color” registration, and improved printing image quality. Disclosed is a printing plate material possessing an image formation layer on one surface of a polyester support and not less than two backing layers on the other surface, wherein at least one of the backing layers is an electrically conductive layer, at least one of the backing layer is a layer containing at least one resin selected from polyester resin, acryl resin, acryl modified polyester resin and cellulose ester resin provided on the electrically conductive layer, and at least one of the backing layers contains an organic matting agent.
    Type: Application
    Filed: August 18, 2005
    Publication date: February 23, 2006
    Inventor: Takeshi Sampei
  • Publication number: 20050247223
    Abstract: Disclosed are a printing plate employing its printing material comprising a polyester support with no coating imperfection, excellent dot image quality, rich ink receptivity at the beginning of printing and excellent ink stain elimination property in non-image portions, and the printing process thereof. Specifically provided is the printing plate material having a polyester support and provided thereon, an image formation layer, at least one adhesion layer being provided between the support and the image formation layer, wherein the adhesion layer contains (A) a copolyester, (B) a water-soluble polymer selected from the group consisting of polyvinyl alcohol and polyvinyl pyrrolidone, and (C) particles.
    Type: Application
    Filed: May 3, 2005
    Publication date: November 10, 2005
    Inventor: Takeshi Sampei
  • Publication number: 20050175932
    Abstract: An object of the invention is to provide a planographic printing plate material providing excellent initial ink receptively, excellent printing durability and greatly improved registering property, a printing plate prepared therefrom, and a printing method employing the printing plate. The forgoing printing plate material comprising a hydrophilic layer on one surface and a backing layer on the other surface of a plastic sheet support, wherein the backing layer contains an organic matting agent and a polymer having a glass transition temperature (Tg) of ?30 to 40° C. is used to attain the object.
    Type: Application
    Filed: January 26, 2005
    Publication date: August 11, 2005
    Inventor: Takeshi Sampei
  • Publication number: 20050011384
    Abstract: Disclosed is a printing method comprising the steps of mounting an underlay sheet on a plate cylinder of a printing press, and providing, on the underlay sheet, a printing plate material comprising a plastic sheet support, and provided thereon, a hydrophilic layer, an image formation layer and a backing layer, the backing layer being provided on the side of the support opposite the image formation layer, so that the backing layer side surface of the printing plate material contacts the underlay sheet surface, wherein a coefficient of dynamic friction of the backing layer side surface of the printing plate material to the underlay sheet surface is from 0.1 to 0.5.
    Type: Application
    Filed: July 6, 2004
    Publication date: January 20, 2005
    Applicant: Konica Minolta Medical & Graphic, Inc.
    Inventor: Takeshi Sampei
  • Publication number: 20040241600
    Abstract: Disclosed are a planographic printing plate material comprising a plastic sheet support, and provided thereon, a hydrophilic layer, a silver halide emulsion layer, a physical developing nucleus-containing layer, and a backing layer, wherein the hydrophilic layer, the silver halide emulsion layer, and the physical developing nucleus-containing layer are provided on one side of the support, and the backing layer is provided on the other side of the sheet opposite the silver halide emulsion layer, and wherein a surface on the backing layer side has a specific resistance of from 1×1011 to 1×1013 &OHgr;, and a coefficient of dynamic friction of from 0.15 to 0.6, the coefficient of dynamic friction being one of the surface on the backing layer side to a stainless steel surface.
    Type: Application
    Filed: May 25, 2004
    Publication date: December 2, 2004
    Inventor: Takeshi Sampei
  • Publication number: 20040168598
    Abstract: Disclosed are a printing plate material capable of being folded by heating, a printing process employing the printing plate material and a process of folding the printing plate material, the printing plate material comprising a support and provided thereon, an image formation layer, the support being a polyester sheet with a thickness dispersion of not more then 10%.
    Type: Application
    Filed: February 5, 2004
    Publication date: September 2, 2004
    Applicant: Konica Minolta Holdings, Inc.
    Inventors: Takeshi Sampei, Saburou Hiraoka
  • Publication number: 20040055490
    Abstract: Disclosed is a printing plate precursor comprising an aluminum support having been subjected to surface roughening treatment and then to anodizing treatment, and provided thereon, a component layer comprising an image formation layer containing heat melting particles or heat fusible particles, the support satisfying the following conditions (a) and (b):
    Type: Application
    Filed: September 3, 2003
    Publication date: March 25, 2004
    Applicant: KONICA CORPORATION
    Inventor: Takeshi Sampei
  • Patent number: 6673508
    Abstract: A planographic printing plate material and a method of preparing a planographic printing plate are disclosed, the planographic printing plate material comprising a support and provided thereon, one or more structural layers containing light sensitive silver halide grains, organic silver salt grains, a reducing agent, a contrast-increasing agent and a physical developing nucleus.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: January 6, 2004
    Assignee: Konica Corporation
    Inventor: Takeshi Sampei
  • Publication number: 20030096188
    Abstract: A planographic printing plate material and a method of preparing a planographic printing plate are disclosed, the planographic printing plate material comprising a support and provided thereon, one or more structural layers containing light sensitive silver halide grains, organic silver salt grains, a reducing agent, a contrast-increasing agent and a physical developing nucleus.
    Type: Application
    Filed: March 12, 2002
    Publication date: May 22, 2003
    Inventor: Takeshi Sampei
  • Publication number: 20030054261
    Abstract: A photothermographic material and its processing method are disclosed, the photothermographic material comprising a support and provided on one side of the support, one or more image forming layers containing a binder, an organic silver salt, silver halide, and a reducing agent, wherein the variation in the maximum surface roughness Rt of the surface on the image forming layer side between the materials before heat treatment and after heat treatment is not more than 1.5 &mgr;m.
    Type: Application
    Filed: February 28, 2002
    Publication date: March 20, 2003
    Inventor: Takeshi Sampei
  • Patent number: 6458519
    Abstract: A photothermographic material comprising a support, silver halide, an organic silver salt and a reducing agent is disclosed, meeting the following requirement: −15<100×(S1−S0)/S0<15 wherein S0 represents a sensitivity of the photothermographic material heat-developed after being allowed to stand at 23° C. and 50% Rh for a period of 3 days and S1 represents a sensitivity of the photothermographic material heat-developed after being allowed to stand at 55° C. and 80% RH for a period of 3 days. An image forming process by the use of the photothermographic material is also disclosed.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: October 1, 2002
    Assignee: Konica Corporation
    Inventor: Takeshi Sampei