Patents by Inventor Yoshimasa Fujita

Yoshimasa Fujita 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: 8674370
    Abstract: Panel (11) of the present invention includes substrate (12) having flat surface (12a?) having rectangular display section (13), and adjacent surface (12b?) curved from an edge part of surface (12a?) in the vicinity of a long side of surface (12a?). On surface (12b?), terminals, extending from display section (13) (in the vicinity of the long side), are arranged. Edge parts of surfaces (12a?) of substrates (12) of adjacent panels (11) are combined so that longitudinal directions of light-emitting sections (13) are parallel to each other. Surface (12b?) projects on a back surface side of substrate (12). It is thus possible to provide a light-emitting panel device realizing a large light-emitting surface by combining a desired number of panels, an image display device including the light-emitting panel device, an illumination device including the light-emitting panel device, a panel in the light-emitting panel device, and a method of producing the panel.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: March 18, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshimasa Fujita, Hidenori Ogata, Ken Okamoto, Yuhki Kobayashi, Makoto Yamada
  • Publication number: 20140009905
    Abstract: A fluorescent substrate includes a substrate, a fluorescent layer disposed on the substrate, the fluorescent layer emitting fluorescence owing to excitation light passing through an incident surface of the fluorescent layer facing the substrate and emitting the fluorescence through an exit surface of the fluorescent layer facing the incident surface, and reflective portions, which face the incident surface and side surfaces of the fluorescent layer in contact with the incident surface. The reflective portions include a first reflective portion that reflects the excitation light and the fluorescence and a second reflective portion disposed on at least part of the incident surface, the second reflective portion allowing at least light having a peak wavelength of the excitation light to pass through and reflecting at least light having a peak wavelength of the fluorescence.
    Type: Application
    Filed: December 13, 2011
    Publication date: January 9, 2014
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yuhki Kobayashi, Mitsuhiro Koden, Yoshimasa Fujita, Hisanori Bessho
  • Publication number: 20130299816
    Abstract: A light emitting device includes an excitation light source element that emits excitation light; a substrate that faces the excitation light source element; a fluorescent layer located on the substrate, the fluorescent layer being excited by the excitation light to emit fluorescence; an optical reflection body disposed on a side surface of the fluorescent layer, the side surface extending in a direction parallel to a stacking direction of the substrate and the fluorescent layer; and a low-refractive-index material layer disposed between the fluorescent layer and the substrate, the low-refractive-index material layer having a refractive index lower than that of the substrate.
    Type: Application
    Filed: December 20, 2011
    Publication date: November 14, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hisanori Bessho, Takeshi Ishida, Yoshimasa Fujita, Yuhki Kobayashi
  • Publication number: 20130303777
    Abstract: A luminescent material includes a transition metal complex which comprises any one of Ir, Os, and Pt as a central metal; and at least one of a carbene ligand and a silylene ligand. The carbene ligand includes a boron atom in a skeleton thereof. The carbene ligand is neutral or monoanionic. The carbene ligand is monodentate, bidentate, or tridentate. The silylene ligand includes a boron atom in a skeleton thereof. The silylene ligand is neutral or monoanionic. The silylene ligand is monodentate, bidentate, or tridentate.
    Type: Application
    Filed: October 4, 2011
    Publication date: November 14, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Ken Okamoto, Tetsuji Itoh, Masahito Ohe, Yoshimasa Fujita, Hidenori Ogata, Akinori Itoh, Makoto Yamada
  • Publication number: 20130303776
    Abstract: A luminescent material includes transition metal complex comprising a ligand in which an electron density of a p orbital of a highest occupied molecular orbital level is higher than 0.239 and lower than 0.711 when the electron density is calculated according to quantum chemical calculation (Gaussian09/DFT/RB3LYP/6-31G), the p orbital being in the outermost shell of an element coordinated to the metal.
    Type: Application
    Filed: October 4, 2011
    Publication date: November 14, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Ken Okamoto, Masahito Ohe, Yoshimasa Fujita, Katsumi Kondoh
  • Publication number: 20130299804
    Abstract: An organic EL display unit is an organic EL display unit which includes a first substrate; an organic EL element which is located on the first substrate, which includes a first electrode, an organic layer containing at least an organic light emitting layer, and a second electrode, and which is configured to emit excitation light; a second substrate; and an optical conversion layer which is located on the second substrate and which is configured to emit light to the outside through a display surface, the light being obtained by conversion of a color tone of the excitation light, the display surface is flat and rectangular, and the second substrate is divided into a plurality of sections along a long side direction of the display surface.
    Type: Application
    Filed: December 27, 2011
    Publication date: November 14, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hidenori Ogata, Yoshimasa Fujita
  • Patent number: 8547013
    Abstract: A display device of the present invention includes a red-light-emitting element (1), a green-light-emitting element (2), and a blue-light-emitting element (3). The red-light-emitting element (1) and the green-light-emitting element (2) each include an organic EL section (20) and a color converting layer (15). The color converting layer (15) has an optical distance that extends from (i) a position of the color converting layer from which position light is emitted to (ii) an extraction surface of the color converting layer, the optical distance being varied between the red-light-emitting element (1) and (2). The blue-light-emitting element (3) may include a film-thickness adjusting layer (19) instead of the color converting layer (15).
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: October 1, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ken Okamoto, Yoshimasa Fujita, Hidenori Ogata, Yuhki Kobayashi, Makoto Yamada, Katsumi Kondoh
  • Patent number: 8525163
    Abstract: An organic EL device 1, for example, excellent in productivity and performance with reduced influence of a voltage drop can be provided at low fabrication cost. The organic EL device 1 includes band-shaped organic EL strips 3 arranged at spacings on a first substrate 2. Each of the organic EL strips 3 includes a second substrate 31, a negative electrode 32b, a positive electrode 32a, and an organic layer 33. The pair of the electrodes 32a and 32b and the organic layer 33 are stacked on the second substrate 2 with the organic layer 33 sandwiched between the electrodes 32a and 32b. The first substrate 2 includes a connection terminal electrode 5 and an auxiliary terminal electrode 6. For example, negative electrode 32b is electrically connected to the connection terminal electrode 5, and the positive electrode 32a is electrically connected to the auxiliary terminal electrode 6.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: September 3, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yoshimasa Fujita
  • Patent number: 8471464
    Abstract: One or more illumination panels (10) are hung by up-and-down cords (3). The up-and-down cords (3) have a function of hanging the illumination panels (10) and a function of supplying electric power to the illumination panels (10). Pulling a rod (7), which is a take-up tool causes the up-and-down cords (3) to be taken up and, at the same time, the bottom rail (4) and the illumination panels (10) are also raised. At this time, the up-and-down cords (3) are taken up into the head box (2). As such, when the bottom rail (4) is raised, the up-and-down cords (3) are taken up without bending. This makes it possible to distribute stress that may otherwise be concentrated locally on the up-and-down cords (3). As a result, the up-and-down cords (3) can be prevented from getting broken due to deterioration caused by concentration of stress on the up-and-down cords (3), which concentration is caused by bending etc. of the up-and-down cords (3).
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: June 25, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Makoto Yamada, Yoshimasa Fujita, Yuhki Kobayashi, Ken Okamoto, Hidenori Ogata
  • Publication number: 20130021549
    Abstract: A fluorescent substrate (5) of the present invention includes: a fluorescent layer (3) which emits light by receiving excitation light; and a reflecting film (10) being provided both (i) on a side surface(s) of the fluorescent layer (3) and (ii) on a surface of the fluorescent layer (3), on which surface the excitation light is incident, the reflecting film (10) (I) transmitting a component having a peak wavelength of the excitation light, and (II) reflecting a component having a peak wavelength of the light emitted from the fluorescent layer (3).
    Type: Application
    Filed: January 28, 2011
    Publication date: January 24, 2013
    Inventor: Yoshimasa Fujita
  • Publication number: 20130016296
    Abstract: The present invention includes: a reflective electrode (2); a translucent electrode (10); an organic EL layer (21) for emitting blue light, the organic EL layer being sandwiched between the reflective electrode and the translucent electrode; a red fluorescent substance layer (13) for converting the light from the organic EL layer (21) into red light; a green fluorescent substance layer (14) for converting the light from the organic EL layer (21) into green light; and a blue pixel including a light-distribution-characteristic adjusting layer (15) for adjusting a light distribution characteristic of the light from the organic EL layer (21), the present invention being structured such that the reflective electrode (2) and the translucent electrode (10) produce a microcavity effect.
    Type: Application
    Filed: January 27, 2011
    Publication date: January 17, 2013
    Inventors: Yoshimasa Fujita, Hidenori Ogata, Ken Okamoto, Yuhki Kobayashi, Makoto Yamada, Katsumi Kondoh
  • Publication number: 20120326180
    Abstract: A light-emitting element of the present invention includes (i) a light-emitting layer (109), (ii) an electrode layer (110) being transparent to part of light emitted from the light-emitting layer (109), (iii) color converting layers (113, 114), and (iv) a transparent layer (115). The color converting layers (113, 114) and the transparent layer (115) sandwich the transparent electrode layer (110) with the light-emitting layer (109). The color converting layers (113, 114) and the transparent electrode layer (115) contain particles (116, 117, 118) expressing a surface plasmon phenomenon, respectively.
    Type: Application
    Filed: October 28, 2010
    Publication date: December 27, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Masahito Ohe, Yoshimasa Fujita, Yuhki Kobayashi, Ken Okamoto, Hidenori Ogata, Makoto Yamada
  • Publication number: 20120319569
    Abstract: A display device of the present invention includes a red-light-emitting element (1), a green-light-emitting element (2), and a blue-light-emitting element (3). The red-light-emitting element (1) and the green-light-emitting element (2) each include an organic EL section (20) and a color converting layer (15). The color converting layer (15) has an optical distance that extends from (i) a position of the color converting layer from which position light is emitted to (ii) an extraction surface of the color converting layer, the optical distance being varied between the red-light-emitting element (1) and (2). The blue-light-emitting element (3) may include a film-thickness adjusting layer (19) instead of the color converting layer (15).
    Type: Application
    Filed: October 29, 2010
    Publication date: December 20, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Ken Okamoto, Yoshimasa Fujita, Hidenori Ogata, Yuhki Kobayashi, Makoto Yamada, Katsumi Kondoh
  • Publication number: 20120313512
    Abstract: A plurality of illumination panels (10) are hung by up-and-down cords (3). The up-and-down cords (3) have a function of hanging the illumination panels (10) and a function of supplying electric power to the illumination panels (10). Pulling a rod (7), which is a take-up tool causes the up-and-down cords (3) to be taken up and, at the same time, the bottom rail (4) and the illumination panels (10) are also raised. At this time, the up-and-down cords (3) are taken up into the head box (2). As such, when the bottom rail (4) is raised, the up-and-down cords (3) are taken up without bending. This makes it possible to distribute stress that may otherwise be concentrated locally on the up-and-down cords (3). As a result, the up-and-down cords (3) can be prevented from getting broken due to deterioration caused by concentration of stress on the up-and-down cords (3), which concentration is caused by bending etc. of the up-and-down cords (3).
    Type: Application
    Filed: February 16, 2011
    Publication date: December 13, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Makoto Yamada, Yoshimasa Fujita, Yuhki Kobayashi, Ken Okamoto, Hidenori Ogata
  • Publication number: 20120306359
    Abstract: An organic EL component (1) of the present invention includes a reflective anode (11), an organic light-emitting unit (12), a semitransparent cathode (13), and a color converting layer (15). The color converting layer (15) absorbs light emitted by the organic light-emitting unit (12) and having a first color, and emits converted light having a second color different from the first color. The semitransparent cathode (13) has a film thickness of not less than 20 nm and not greater than 30 nm, and efficiently reflects, toward a light extraction side, light emitted from the color converting layer (15).
    Type: Application
    Filed: October 28, 2010
    Publication date: December 6, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Ken Okamoto, Yoshimasa Fujita, Hidenori Ogata, Yuhki Kobayashi, Makoto Yamada, Katsumi Kondoh
  • Publication number: 20120299470
    Abstract: An illumination device (1) of the present invention includes slats (2) each having flexibility and being such that an organic layer (30) is provided between a first electrode (20) and a second electrode (21), the slats (2) being in parallel with other and movable rotatably forward and backward. The illumination device includes a support wire (4) for supporting the slats (2) so that the slats (2) are movable rotatably forward and backward, a power supply device (7) for supplying a voltage, via a conductive wire group (3), to the electrodes (20) and (21), and a slat pressure member (5) provided in the vicinity of one of surfaces of each slat (2), the slat pressure member giving pressure to each slat (2) from a position in the vicinity of the one of surfaces in accordance with rotational movement forward and backward of the slat (2) caused by the wire (4).
    Type: Application
    Filed: November 2, 2010
    Publication date: November 29, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yuhki Kobayashi, Yoshimasa Fujita
  • Publication number: 20120268445
    Abstract: Provided are an image display device in which a desired number of panels are combined so that a large light-emitting surface is realized, a panel provided in the image display device, and a method for manufacturing the panel. For this purpose, a panel (11) of the present invention includes a rectangular light-emitting section (13); a substrate (12) having a flat surface (12a?) on which the rectangular light-emitting section (13) is provided and a curved adjacent surface (12b?) that is adjacent to one of edge portions of the flat surface which extend along long sides of the rectangular light-emitting section (13); and a terminal group that is drawn out from a long side of the rectangular light-emitting section (13) and that is disposed in the adjacent surface.
    Type: Application
    Filed: December 2, 2010
    Publication date: October 25, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hidenori Ogata, Yuhki Kobayashi, Makoto Yamada, Ken Okamoto, Yoshimasa Fujita, Katsumi Kondoh
  • Publication number: 20120267619
    Abstract: An organic EL element (1) according to the present invention is such that a positive and negative charge transport layer (30) is interposed between a cathode (20) and an anode (10). The positive and negative charge transport layer (30) is composed of a single host material and has a light-emitting region (33) which is doped with a light-emitting dopant. The positive and negative charge transport layer (30) further has at least one of the following blocking regions: an electron blocking region (32), provided closer to the anode (10) than the light-emitting region (33), having a lowest unoccupied molecular orbital lower than that of the lowest unoccupied molecular orbital of the light-emitting region (33); and a hole blocking region (34), provided closer to the cathode (20) than the light-emitting region (33), having a highest occupied molecular orbital higher than that of the highest occupied molecular orbital of the light-emitting region (33).
    Type: Application
    Filed: December 6, 2010
    Publication date: October 25, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Makoto Yamada, Yoshimasa Fujita, Hidenori Ogata, Yuhki Kobayashi, Ken Okamoto
  • Publication number: 20120242937
    Abstract: An electro-optic device (100) includes a conductive wiring board (110) on one surface of which a plurality of conductive wires (140) are arranged so as not to intersect with each other, and a plurality of optical elements (130) each of which is provided on the board (110), and in which an insulating base member (131), a lower electrode (132), a function layer (133), and an upper electrode (134) are sequentially formed on the board (110). In this device (100), the lower electrode (132) is electrically connected to one of the conductive wires (140); the upper electrode (134) is electrically connected to one of the conductive wires (140) which is not connected to the lower electrode (132); and each of the optical elements (130) is provided such that part of the optical element (130) overlaps with part of one or more of the conductive wires (140) in plan view.
    Type: Application
    Filed: October 28, 2010
    Publication date: September 27, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Makoto Yamada, Yoshimasa Fujita
  • Publication number: 20120228596
    Abstract: Panel (11) of the present invention includes substrate (12) having flat surface (12a?) having rectangular display section (13), and adjacent surface (12b?) curved from an edge part of surface (12a?) in the vicinity of a long side of surface (12a?). On surface (12b?), terminals, extending from display section (13) (in the vicinity of the long side), are arranged. Edge parts of surfaces (12a?) of substrates (12) of adjacent panels (11) are combined so that longitudinal directions of light-emitting sections (13) are parallel to each other. Surface (12b?) projects on a back surface side of substrate (12). It is thus possible to provide a light-emitting panel device realizing a large light-emitting surface by combining a desired number of panels, an image display device including the light-emitting panel device, an illumination device including the light-emitting panel device, a panel in the light-emitting panel device, and a method of producing the panel.
    Type: Application
    Filed: May 20, 2010
    Publication date: September 13, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yoshimasa Fujita, Hidenori Ogata, Ken Okamoto, Yuhki Kobayashi, Makoto Yamada