Patents by Inventor Takehiko Yamashita

Takehiko Yamashita 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: 10527921
    Abstract: A transparent screen which displays an image projected from a projector. The transparent screen includes a display panel including a diffusion film which diffuses projection light from the projector, and a tinted film which is disposed to be remoter from the projector than the diffusion film is and has a transmittance which is variable. The transparent screen includes a controller which performs control to decrease the transmittance of the tinted film when an illuminance of a site where the transparent screen is installed is equal to or higher than a first threshold, and performs control to increase the transmittance of the tinted film when the illuminance is equal to or lower than a second threshold lower than the first threshold.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: January 7, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Takehiko Yamashita
  • Publication number: 20190025692
    Abstract: A transparent screen which displays an image projected from a projector. The transparent screen includes a display panel including a diffusion film which diffuses projection light from the projector, and a tinted film which is disposed to be remoter from the projector than the diffusion film is and has a transmittance which is variable. The transparent screen includes a controller which performs control to decrease the transmittance of the tinted film when an illuminance of a site where the transparent screen is installed is equal to or higher than a first threshold, and performs control to increase the transmittance of the tinted film when the illuminance is equal to or lower than a second threshold lower than the first threshold.
    Type: Application
    Filed: September 20, 2018
    Publication date: January 24, 2019
    Inventor: Takehiko YAMASHITA
  • Patent number: 9891517
    Abstract: An image projection system includes a translucent screen, a projector that projects image light to the translucent screen, and a controller that controls the projector and the translucent screen. The translucent screen includes a first light control film configured to be switchable between a transmissive state for transmitting incident light therethrough and a diffusion state for diffusing incident light, and a second light control film configured such that the transmittance thereof with respect to incident light can be changed.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: February 13, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Takehiko Yamashita
  • Publication number: 20170160621
    Abstract: An image projection system includes a translucent screen, a projector that projects image light to the translucent screen, and a controller that controls the projector and the translucent screen. The translucent screen includes a first light control film configured to be switchable between a transmissive state for transmitting incident light therethrough and a diffusion state for diffusing incident light, and a second light control film configured such that the transmittance thereof with respect to incident light can be changed.
    Type: Application
    Filed: February 24, 2017
    Publication date: June 8, 2017
    Inventor: Takehiko YAMASHITA
  • Patent number: 9447231
    Abstract: An outer casing for an electric device which is a molded article of a environmental resin wherein poly(lactic acid) and/or a lactic acid copolymer is used, is constituted by molding a flame-retarded resin composition including a resin component containing poly(lactic acid) and/or the lactic acid copolymer as a main ingredient, and silica-magnesia catalyst particles as a flame retardance-imparting component which imparts flame retardance, wherein an organometallic compound is attached to a part of surfaces or the entire surfaces of the silica-magnesia catalyst particles. The organometallic compound is preferably a titanium-based coupling agent or a zirconium-based coupling agent.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: September 20, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Takehiko Yamashita
  • Patent number: 8779049
    Abstract: An outer casing for an electric device which is a molded article of a environmental resin wherein poly(lactic acid) and/or a lactic acid copolymer is used, is constituted by molding a flame-retarded resin composition including a resin component containing poly(lactic acid) and/or the lactic acid copolymer as a main ingredient, and silica-magnesia catalyst particles as a flame retardance-imparting component which imparts flame retardance, wherein the content of the silica-magnesia catalyst particles is 0.5% by weight or more and 9.0% by weight or less of the total weight of the flame-retarded resin composition. The silica-magnesia catalyst particles preferably have an average particle diameter of 10 ?m or less.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: July 15, 2014
    Assignee: Panasonic Corporation
    Inventor: Takehiko Yamashita
  • Patent number: 8735486
    Abstract: An exterior body of an electric appliance is produced by kneading one or more resin components and one or more flame retardancy-imparting components to give a composition, and molding the composition by an injection molding method or a compression molding method. At least one of the flame retardancy-imparting components is a catalytic cracking catalyst and the catalytic cracking catalyst is a silica-magnesia catalyst which is double oxide of silicon oxide and magnesium oxide or which is formed by binding silicon oxide and magnesium oxide. The at least one flame retardancy-imparting component is contained in an amount of 0.5 wt % to 40 wt % of the resin composition. No metal hydroxide and no polyvinyl chloride are contained in the composition.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: May 27, 2014
    Assignee: Panasonic Corporation
    Inventors: Takehiko Yamashita, Kunihiko Takeda
  • Publication number: 20140015817
    Abstract: An information display device includes: a display unit including a display panel and a drive circuit portion, arranged on a back side of the display panel, for displaying information on the display panel; and a front panel arranged on a display surface side of the display panel and larger than an outside dimension of the display panel. The front panel has a shape in which curves are formed in corner portions at four corners thereof. A long decoration member having flexibility is arranged in a winding manner so as to cover an entirety of outer peripheral surfaces of four sides of the display unit including an outer peripheral surface of the front panel. The decoration member includes an adhesive layer bonded to the outer peripheral surface of the display unit such that the decoration member is in close contact with the outer peripheral surface of the front panel.
    Type: Application
    Filed: July 1, 2013
    Publication date: January 16, 2014
    Inventors: Suguru Nakao, Shuji Yamashita, Takehiko Yamashita
  • Patent number: 8415001
    Abstract: A decorative member composing a casing includes: a resin layer (2) having a front surface (2b) and a back surface (2a); and a reflective layer (3) formed on the back surface (2a) of the resin layer (2). The back surface (2a) of the resin layer (2) includes a receding surface (21) formed therein. The receding surface recedes gradually toward the front surface (2b) to change a thickness of the resin layer (2). The receding surface (21) is a concave surface forming a depression that opens while broadening. The back surface (2a) of the resin layer (2) has a reference surface (22) around the receding surface (21), and a portion of the reference surface (22) facing an internal space of the casing is a roughened area (4).
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: April 9, 2013
    Assignee: Panasonic Corporation
    Inventors: Shuji Yamashita, Suguru Nakao, Takehiko Yamashita, Takashi Nagashima
  • Publication number: 20120307463
    Abstract: The display device has a display module, a metal frame, and an exterior cabinet for accommodating the display module. The display module contains a display panel and a circuit board on which a driver circuit for displaying image on the panel is mounted. The metal frame is disposed in the periphery of the display panel. The exterior cabinet has a decorative panel and a back cover. The decorative panel is disposed on a front side of the display panel so as to cover the frame. The back cover covers a back side of the display module. The decorative panel is made of light transmissible colored resin. The decorative panel has an uneven thickness part, where a thickness changes continuously, at the section disposed on the frame.
    Type: Application
    Filed: February 16, 2012
    Publication date: December 6, 2012
    Inventors: Shuji YAMASHITA, Takehiko Yamashita
  • Patent number: 8227070
    Abstract: A decorative member (1A) includes: a resin layer (2) having a front surface (2b) and a back surface (2a); and a reflective layer (3) formed on the back surface (2a) of the resin layer (2). The back surface (2a) of the resin layer (2) includes a receding surface (21) formed therein. The receding surface recedes gradually toward the front surface (2b) to change a thickness of the resin layer (2). A pigmented layer (4) configured so that lightness/depth of color thereof changes in accordance with the change in the thickness of the resin layer (2) is provided between the back surface (2a) of the resin layer (2) and the reflective layer (3).
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: July 24, 2012
    Assignee: Panasonic Corporation
    Inventors: Takashi Nagashima, Suguru Nakao, Takehiko Yamashita, Shuji Yamashita
  • Publication number: 20110281074
    Abstract: A decorative member (1A) includes: a resin layer (2) having a front surface (2b) and a back surface (2a); and a reflective layer (3) formed on the back surface (2a) of the resin layer (2). The back surface (2a) of the resin layer (2) includes a receding surface (21) formed therein. The receding surface recedes gradually toward the front surface (2b) to change a thickness of the resin layer (2). A pigmented layer (4) configured so that lightness/depth of color thereof changes in accordance with the change in the thickness of the resin layer (2) is provided between the back surface (2a) of the resin layer (2) and the reflective layer (3).
    Type: Application
    Filed: December 25, 2009
    Publication date: November 17, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Takashi Nagashima, Suguru Nakao, Takehiko Yamashita, Shuji Yamashita
  • Publication number: 20110281075
    Abstract: A decorative member composing a casing includes: a resin layer (2) having a front surface (2b) and a back surface (2a); and a reflective layer (3) formed on the back surface (2a) of the resin layer (2). The back surface (2a) of the resin layer (2) includes a receding surface (21) formed therein. The receding surface recedes gradually toward the front surface (2b) to change a thickness of the resin layer (2). The receding surface (21) is a concave surface forming a depression that opens while broadening. The back surface (2a) of the resin layer (2) has a reference surface (22) around the receding surface (21), and a portion of the reference surface (22) facing an internal space of the casing is a roughened area (4).
    Type: Application
    Filed: November 25, 2009
    Publication date: November 17, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Shuji Yamashita, Suguru Nakao, Takehiko Yamashita, Takashi Nagashima
  • Publication number: 20110262713
    Abstract: A decorative member (1A) includes: a resin layer (2) having a front surface (2b) and a back surface (2a); and a reflective layer (3) formed on the back surface (2a) of the resin layer (2). The back surface (2a) of the resin layer (2) includes a receding surface (21) formed therein. The receding surface recedes gradually toward the front surface (2b) to change a thickness of the resin layer (2). The receding surface (21) is curved continuously along at least one direction perpendicular to a thickness direction of the resin layer (2) so as to be convex toward the front surface (2b).
    Type: Application
    Filed: December 25, 2009
    Publication date: October 27, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Suguru Nakao, Shuji Yamashita, Takehiko Yamashita, Takashi Nagashima
  • Publication number: 20110101566
    Abstract: A flame-retardant composition is obtained wherein at least one resin selected from a biodegradable resin and a plant-based resin or a PS resin is flame retarded by using a non-halogen-based flame retardancy-imparting component. At least one catalyst selected from a catalyst for purifying hydrocarbon, a catalyst for cracking hydrocarbon, a catalyst for synthesizing hydrocarbon and a catalyst for reforming hydrocarbon is used as a component conferring flame retardancy and this catalyst is kneaded with a biodegradable resin or a plant based resin such as polylactic acid and polybutylene succinate or the PS resin so as to give a resin composition. Further, the resin composition is injection-molded to give an exterior body of electric home appliance. Particularly the silica-magnesia catalyst as a flame-retardant component provides a resin composition with excellent flame-retardant characteristics, as a non-halogen-based material, in the case where polylactic acid or the PS resin is made flame retardant.
    Type: Application
    Filed: January 12, 2011
    Publication date: May 5, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Takehiko Yamashita, Kunihiko Takeda
  • Patent number: 7855247
    Abstract: A particle dispersed resin composition (19) is a composition in which a particle dispersed solvent (17) with and in which functional particulate powder is mixed and dispersed is mixed with a heated and melted resin (16). The amount of the resin (16) is set at a capable amount thereof which the resin (16) impregnates.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: December 21, 2010
    Assignee: Panasonic Corporation
    Inventors: Takehiko Yamashita, Takao Hisazumi
  • Patent number: 7750069
    Abstract: At least one resin component which is selected from a biodegradable resin and a plant-based resin, and a flame retardancy-imparting component are kneaded to obtain a resin composition having flame retardancy. This resin composition makes it possible to apply the environment-friendly resin such as the biodegradable resin and the plant-based resin, for example, polylactic acid and polybutylene succinate to exterior bodies of home appliances. Particularly, in the case where polylactic acid is used with the acetylacetonatoiron as the flame-retardant component, a resin composition having excellent flame retardancy can be provided as a non-halogen material.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: July 6, 2010
    Assignee: Panasonic Corporation
    Inventors: Takehiko Yamashita, Kunihiko Takeda, Yoshiyuki Tani, Takao Hisazumi
  • Publication number: 20090326126
    Abstract: A resin composition is provided which is made flame retardant using a non-halogen flame retardancy-imparting component, and the resin composition containing HIPS as a resin component is particularly provided. A salt of succinic acid and/or a salt of malic acid or a metal sulfide is used as the flame retardancy-imparting component and this component is kneaded with the resin component such as a polystyrene polymer to produce the resin composition. Further, the resin composition is injection-molded into exterior bodies of home electric appliances. The use of molybdenum disulfide, disodium succinate or dipotassium succinate, as the flame retardancy-imparting component makes it possible to provide the resin composition of excellent flame retardancy as a non-halogen material.
    Type: Application
    Filed: July 3, 2007
    Publication date: December 31, 2009
    Inventors: Takehiko Yamashita, Kunihiko Takeda
  • Publication number: 20080221278
    Abstract: A particle dispersed resin composition (19) is a composition in which a particle dispersed solvent (17) with and in which functional particulate powder is mixed and dispersed is mixed with a heated and melted resin (16). The amount of the resin (16) is set at a capable amount thereof which the resin (16) impregnates.
    Type: Application
    Filed: June 9, 2006
    Publication date: September 11, 2008
    Inventors: Takehiko Yamashita, Takao Hisazumi
  • Publication number: 20080194739
    Abstract: A flame-retardant composition is obtained wherein at least one resin selected from a biodegradable resin and a plant-based resin or a PS resin is flame retarded by using a non-halogen-based flame retardancy-imparting component. At least one catalyst selected from a catalyst for purifying hydrocarbon, a catalyst for cracking hydrocarbon, a catalyst for synthesizing hydrocarbon and a catalyst for reforming hydrocarbon is used as a component conferring flame retardancy and this catalyst is kneaded with a biodegradable resin or a plant based resin such as polylactic acid and polybutylene succinate or the PS resin so as to give a resin composition. Further, the resin composition is injection-molded to give an exterior body of electric home appliance. Particularly the silica-magnesia catalyst as a flame-retardant component provides a resin composition with excellent flame-retardant characteristics, as a non-halogen-based material, in the case where polylactic acid or the PS resin is made flame retardant.
    Type: Application
    Filed: November 11, 2005
    Publication date: August 14, 2008
    Inventors: Takehiko Yamashita, Kunihiko Takeda