Patents by Inventor Shogo Nasu
Shogo Nasu 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).
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Patent number: 11587691Abstract: A radiation shielding material that is lighter and has lower installation restrictions than conventional methods, and that exhibits excellent shielding efficiency against radiation in the high energy region. The radiation shielding material comprises a complex containing a fibrous nanocarbon material, a primary radiation shielding particle, and a binder, wherein the fibrous nanocarbon material and the primary radiation shielding particle are dispersed in the binder.Type: GrantFiled: August 9, 2018Date of Patent: February 21, 2023Assignees: SUN-NANOTECHNOLOGY CO., LTD., JAPAN ATOMIC ENERGY AGENCYInventors: Oji Koizumi, Shogo Nasu, Junichiro Kamiya
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Publication number: 20190333653Abstract: A radiation shielding material that is lighter and has lower installation restrictions than conventional methods, and that exhibits excellent shielding efficiency against radiation in the high energy region. The radiation shielding material comprises a complex containing a fibrous nanocarbon material, a primary radiation shielding particle, and a binder, wherein the fibrous nanocarbon material and the primary radiation shielding particle are dispersed in the binder.Type: ApplicationFiled: August 9, 2018Publication date: October 31, 2019Applicants: SUN-TECH LIMITED, JAPAN ATOMIC ENERGY AGENCYInventors: Oji KOIZUMI, Shogo NASU, Junichiro KAMIYA
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Publication number: 20130236655Abstract: A photosensitive electromagnetic-wave interception ink composition containing a photosensitive metal complex, electrically conductive particles, soft magnetic particles and a solvent is used for forming a coated film on a surface of a particular circuit element mounted on a circuit board by an ink-jet method, and the film is irradiated with light, whereby an electrically conductive cured material 100 containing at least electrically conductive particles 120 originated from the photosensitive electromagnetic-wave interception ink composition and the soft particles 140 is formed.Type: ApplicationFiled: April 24, 2013Publication date: September 12, 2013Applicant: Panasonic CorporationInventors: Shogo NASU, Eiichi URIU, Hisayo OHATA
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Patent number: 8450766Abstract: A light emitting device (10) of the present invention includes: a back electrode (2) as a first electrode and a transparent electrode (3) as a second electrode facing each other, at least one of the back electrode and the transparent electrode having transparency to light; and luminescent particles (4) provided between the back electrode (2) and the transparent electrode (3) and connected electrically to the back electrode (2) and the transparent electrode (3). The back electrode (2) as the first electrode has recesses in a surface thereof facing the transparent electrode (3).Type: GrantFiled: March 16, 2009Date of Patent: May 28, 2013Assignee: Panasonic CorporationInventors: Eiichi Satoh, Takayuki Shimamura, Reiko Taniguchi, Shogo Nasu, Masayuki Ono, Masaru Odagiri
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Patent number: 8330177Abstract: A display device is provided with a pair of a first electrode and a second electrode, at least one electrode of the first and second electrodes being transparent or translucent and a phosphor layer provided as being sandwiched between the first electrode and the second electrode, and at least one buffer layer provided as being sandwiched between the first or second electrode and the phosphor layer, and the phosphor layer has a plurality of pixel regions that are selectively allowed to emit light in a predetermined range thereof and non-pixel regions that divide at least one portion of the pixel regions, and wherein the buffer layer is sandwiched between the first or second electrode and the phosphor layer so that the size of an electric potential barrier between the first or second electrode and the phosphor layer via the buffer layer is made smaller than the size of a Schottky barrier between the first or second electrode and the phosphor layer that are directly made contact with each other without the buffeType: GrantFiled: February 22, 2008Date of Patent: December 11, 2012Assignee: Panasonic CorporationInventors: Masayuki Ono, Shogo Nasu, Toshiyuki Aoyama, Eiichi Satoh, Reiko Taniguchi, Masaru Odagiri
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Patent number: 8304979Abstract: A light emitting device (10) of the present invention includes luminescent particles (14) and a pair of electrodes (12, 16) for injecting an electric current into the luminescent particles (14). An inorganic hole transport material (15) is disposed between the electrodes (12, 16). The luminescent particles (14) are dispersed in the inorganic hole transport material (15). Conductive fine particles may be adhered to at least a part of the surfaces of the luminescent particles (14) for the purpose of achieving further high brightness and high efficiency.Type: GrantFiled: December 4, 2008Date of Patent: November 6, 2012Assignee: Panasonic CorporationInventors: Masayuki Ono, Shogo Nasu, Eiichi Satoh, Reiko Taniguchi, Takayuki Shimamura, Masaru Odagiri
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Patent number: 8207545Abstract: This light-emitting device includes a first electrode, a second electrode disposed opposite to the first electrode and a phosphor layer which is sandwiched between the first electrode and the second electrode and constituted by dispersing n-type semiconductor particles in a p-type semiconductor medium. A light-emitting device in another embodiment includes a first electrode, a second electrode disposed opposite to the first electrode and a phosphor layer which is sandwiched between the first electrode and the second electrode wherein a p-type semiconductor is segregated among the n-type semiconductor particles.Type: GrantFiled: August 15, 2007Date of Patent: June 26, 2012Assignee: Panasonic CorporationInventors: Eiichi Satoh, Shogo Nasu, Reiko Taniguchi, Toshiyuki Aoyama, Masayuki Ono, Kenji Hasegawa, Masaru Odagiri
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Patent number: 8179033Abstract: A display is provided with: a substrate; a plurality of parallel scan wires extending over the substrate in a first direction; a plurality of parallel data wires extending parallel to a surface of the substrate in a second direction perpendicular to the first direction; at least one switching element per intersection between the scan wires and the data wires; pixel electrodes connected to the switching elements; at least one phosphor layer provided above the pixel electrodes; and common electrodes provided above the phosphor layer, and the phosphor layer has a polycrystalline structure made of a first semiconductor material and a second semiconductor material segregated between grain boundaries in the polycrystalline structure, which is different from the first semiconductor material.Type: GrantFiled: September 12, 2007Date of Patent: May 15, 2012Assignee: Panasonic CorporationInventors: Reiko Taniguchi, Masayuki Ono, Shogo Nasu, Eiichi Satoh, Toshiyuki Aoyama, Kenji Hasegawa, Masaru Odagiri, Masato Murayama
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Patent number: 8110831Abstract: A display device is provided with a pair of a first electrode and a second electrode at least one of which is transparent or translucent and a phosphor layer formed so as to be sandwiched between the first electrode and the second electrode, and the phosphor layer has a polycrystal structure made of a first semiconductor substance in which a second semiconductor substance different from the first semiconductor substance is segregated on a grain boundary of the polycrystal structure, and the phosphor layer has a plurality of pixel regions that are selectively allowed to emit light in a predetermined range thereof and non-pixel regions that divide at least one portion of the pixel regions.Type: GrantFiled: February 21, 2008Date of Patent: February 7, 2012Assignee: Panasonic CorporationInventors: Masayuki Ono, Shogo Nasu, Toshiyuki Aoyama, Eiichi Satoh, Reiko Taniguchi, Masaru Odagiri
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Patent number: 7982388Abstract: This light emitting device includes a pair of electrodes at least one of which is transparent or translucent, and a phosphor layer that is sandwiched between the electrodes and has a polycrystalline structure made of a first semiconductor material, and in this structure, a second semiconductor material different from the first semiconductor material is segregated on a grain boundary of the polycrystalline structure. The first semiconductor material and the second semiconductor material preferably have semiconductor structures of conduction types that are different from each other. Moreover, the first semiconductor material preferably has an n-type semiconductor structure, and the second semiconductor material preferably has a p-type semiconductor structure. Furthermore, in the case where the first semiconductor material is a zinc-based material containing zinc, at least one of the paired electrodes is preferably made of a material containing zinc.Type: GrantFiled: July 24, 2007Date of Patent: July 19, 2011Assignee: Panasonic CorporationInventors: Masayuki Ono, Reiko Taniguchi, Shogo Nasu, Eiichi Satoh, Kenji Hasegawa, Toshiyuki Aoyama, Masaru Odagiri
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Patent number: 7981710Abstract: A light emitting device of the invention includes an electron transporting layer, a hole transporting layer provided mutually facing the electron transporting layer with a distance between the hole transporting layer and the electron transporting layer, a phosphor layer having a layer of a plurality of semiconductor fine particles sandwiched between the electron transporting layer and the hole transporting layer, a first electrode provided facing the electron transporting layer and connected electrically, and a second electrode provided facing the hole transporting layer and connected electrically: in which the semiconductor fine particles composing the phosphor layer have a p-type part and an n-type part inside of the particles and have a pn-junction in the interface of the p-type part and the n-type part and are arranged in a manner that the p type part is partially brought into contact with the hole transporting layer and at the same time, the n type part is partially brought into contact with the electronType: GrantFiled: March 28, 2008Date of Patent: July 19, 2011Assignee: Panasonic CorporationInventors: Eiichi Satoh, Shogo Nasu, Reiko Taniguchi, Masayuki Ono, Masaru Odagiri
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Patent number: 7973747Abstract: There is provided a display device: a display unit including a plurality of scan electrodes arranged to extend in parallel to each other along a first direction, a plurality of data electrodes arranged to extend in parallel to each other along a second direction crossing the scan electrodes, and a plurality of pixels, each pixel at which a pair of the scan electrode and the data electrode cross each other, each pixel having a light emitting layer and a dielectric layer interposed between the scan electrode and the data electrode from a direction vertical to a face; and an erasing pulse supplying unit operable to supply attenuation voltage pulse, to the light emitting layer of each pixel, which starts at a voltage not more than an emission starting voltage at which the light emitting layer starts emission and in which polarity is alternately reversed between positive and negative.Type: GrantFiled: October 25, 2005Date of Patent: July 5, 2011Assignee: Panasonic CorporationInventors: Masayuki Ono, Shogo Nasu, Toshiyuki Aoyama, Masaru Odagiri
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Publication number: 20110006296Abstract: A light emitting device (10) of the present invention includes: a back electrode (2) as a first electrode and a transparent electrode (3) as a second electrode facing each other, at least one of the back electrode and the transparent electrode having transparency to light; and luminescent particles (4) provided between the back electrode (2) and the transparent electrode (3) and connected electrically to the back electrode (2) and the transparent electrode (3). The back electrode (2) as the first electrode has recesses in a surface thereof facing the transparent electrode (3).Type: ApplicationFiled: March 16, 2009Publication date: January 13, 2011Applicant: PANASONIC CORPORATIONInventors: Eiichi Satoh, Takayuki Shimamura, Reiko Taniguchi, Shogo Nasu, Masayuki Ono, Masaru Odagiri
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Patent number: 7868351Abstract: A light emitting device includes a pair of electrodes, wherein at least one electrode is transparent or semi-transparent, and an phosphor layer provided between the pair of electrodes, wherein the phosphor layer includes a layer having nitride semiconductor particles, and wherein the nitride semiconductor particles have metal nano structures precipitated in grain boundaries between the nitride semiconductor particles.Type: GrantFiled: March 28, 2008Date of Patent: January 11, 2011Assignee: Panasonic CorporationInventors: Reiko Taniguchi, Masayuki Ono, Shogo Nasu, Eiichi Satoh, Masaru Odagiri
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Publication number: 20100308332Abstract: A display device is provided with a pair of a first electrode and a second electrode at least one of which is transparent or translucent and a phosphor layer formed so as to be sandwiched between the first electrode and the second electrode, and the phosphor layer has a polycrystal structure made of a first semiconductor substance in which a second semiconductor substance different from the first semiconductor substance is segregated on a grain boundary of the polycrystal structure, and the phosphor layer has a plurality of pixel regions that are selectively allowed to emit light in a predetermined range thereof and non-pixel regions that divide at least one portion of the pixel regions.Type: ApplicationFiled: February 21, 2008Publication date: December 9, 2010Inventors: Masayuki Ono, Shogo Nasu, Toshiyuki Aoyama, Eiichi Satoh, Reiko Taniguchi, Masaru Odagiri
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Publication number: 20100283066Abstract: A light emitting device (10) of the present invention includes luminescent particles (14) and a pair of electrodes (12, 16) for injecting an electric current into the luminescent particles (14). An inorganic hole transport material (15) is disposed between the electrodes (12, 16). The luminescent particles (14) are dispersed in the inorganic hole transport material (15). Conductive fine particles may be adhered to at least a part of the surfaces of the luminescent particles (14) for the purpose of achieving further high brightness and high efficiency.Type: ApplicationFiled: December 4, 2008Publication date: November 11, 2010Applicant: PANASONIC CORPORATIONInventors: Masayuki Ono, Shogo Nasu, Eiichi Satoh, Reiko Taniguchi, Takayuki Shimamura, Masaru Odagiri
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Publication number: 20100276675Abstract: Disclosed is a light emitting device including a pair of electrodes at least one of which is transparent or semi-transparent, and a phosphor layer arranged between the pair of electrodes. The phosphor layer contains phosphor particles dispersed therein, and conductive nano particles are interposed at the interface between the phosphor layer and one of the electrodes. Also disclosed is another light emitting device including a pair of electrodes at least one of which is transparent or semi-transparent, and a phosphor layer arranged between the pair of electrodes. In this light emitting device, the phosphor layer contains phosphor particles dispersed therein, and at least one of the pair of electrodes is provided with a brush-like electrode projecting towards the phosphor layer. The brush-like electrode may be provided on the electrode on the positive electrode side, and the brush-like electrode provided on the electrode on the positive electrode side may preferably have a work function of 4.5 eV or more.Type: ApplicationFiled: December 3, 2008Publication date: November 4, 2010Inventors: Reiko Taniguchi, Masayuki Ono, Shogo Nasu, Eiichi Satoh, Takayuki Shimamura, Masaru Odagiri
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Publication number: 20100245218Abstract: Disclosed is a light-emitting device including a first electrode and a second electrode arranged facing each other, at least one of the electrodes being transparent or semi-transparent, and a phosphor layer provided as being sandwiched between the first electrode and the second electrode. In the phosphor layer, conductive nano particles and phosphor particles are dispersed in a matrix including a hole-transporting material. Also disclosed is another light-emitting device including a first electrode and a second electrode arranged facing each other, at least one of the electrodes being transparent or semi-transparent, and a phosphor layer sandwiched between the first electrode and the second electrode. This phosphor layer includes a phosphor particle powder containing phosphor particles, the phosphor particle having at least surface covered with a coating layer, the coating layer including a hole transport material and conductive nano particles dispersed in the hole transport material.Type: ApplicationFiled: October 31, 2008Publication date: September 30, 2010Inventors: Shogo Nasu, Reiko Taniguchi, Eiichi Satoh, Takayuki Shimamura, Masayuki Ono, Masaru Odagiri
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Publication number: 20100231487Abstract: This light-emitting device includes a first electrode, a second electrode disposed opposite to the first electrode and a phosphor layer which is sandwiched between the first electrode and the second electrode and constituted by dispersing n-type semiconductor particles in a p-type semiconductor medium. A light-emitting device in another embodiment includes a first electrode, a second electrode disposed opposite to the first electrode and a phosphor layer which is sandwiched between the first electrode and the second electrode wherein a p-type semiconductor is segregated among the n-type semiconductor particles.Type: ApplicationFiled: August 15, 2007Publication date: September 16, 2010Inventors: Eiichi Satoh, Shogo Nasu, Reiko Taniguchi, Toshiyuki Aoyama, Masayuki Ono, Kenji Hasegawa, Masaru Odagiri
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Publication number: 20100213450Abstract: A phosphor element is provided with a first electrode and a second electrode. The electrodes are arranged to face each other, and at least one of the electrodes is transparent or semi-transparent. The phosphor element is also provided with a phosphor layer, which is sandwiched between the first electrode and the second electrode and has phosphor particles dispersed in a medium made of a hole transport material. Conductive nano particles are held on the surface of each of the phosphor particles.Type: ApplicationFiled: October 9, 2008Publication date: August 26, 2010Inventors: Eiichi Satoh, Takayuki Shimamura, Reiko Taniguchi, Shogo Nasu, Masayuki Ono, Masaru Odagiri