Patents by Inventor Katsutoshi Ohno
Katsutoshi Ohno 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: 7651631Abstract: A phosphor, an optical device, and a display device are provided. The phosphor includes a composition represented by (Sr(1-x-y)CaxBay)(Ga(1-m-n)AlmInn)aS4:Eu, wherein the concentration of europium is in the range of 1 to 9 mole percent; 0?x?1, 0?y?1, and x+y?1; 0?m?1, 0?n?1, m+n?1, and 2.9?a?5.9; and a main absorption wavelength range of the excitation is selected either a first wavelength range that overlaps the entirety of a reference wavelength range and extends to the shorter wavelength side or a second wavelength range that overlaps the entirety of the reference wavelength range and extends to the longer wavelength side according to the value a.Type: GrantFiled: July 27, 2006Date of Patent: January 26, 2010Assignee: Sony CorporationInventors: Takahiro Igarashi, Tsuneo Kusunoki, Katsutoshi Ohno, Isamu Kobori
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Patent number: 7528902Abstract: A liquid crystal display capable of expanding a color reproduction range in the case where a cold cathode fluorescent lamp is used as a light source is provided. A green phosphor of the cold cathode fluorescent lamp includes BaMgAl10O17:Eu, Mn. The wavelength range of a green emission spectrum is located on a shorter wavelength side than that in the case where the green phosphor includes LaPO4:Ce, Tb, so the spectral width of the green emission spectrum is narrower. Therefore, an overlap between the wavelength ranges of green display light and red display light is reduced. Moreover, the spectral characteristics of blue display light (blue spectral characteristics) are set so as to satisfy predetermined conditional expressions. An overlap between the wavelength ranges of the green display light and the blue display light is also reduced.Type: GrantFiled: May 16, 2006Date of Patent: May 5, 2009Assignee: Sony CorporationInventors: Takahiro Igarashi, Tsuneo Kusunoki, Katsutoshi Ohno
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Patent number: 7504518Abstract: Disclosed is a process for producing a blocked isocyanate compound represented by general formula (III): wherein R1, R2, Q1, and Q2 are as defined in the specification, characterized by comprising reacting a pyrazole compound (I) with an ethylenically unsaturated group-containing isocyanate compound (II) at a temperature in the range of 0° C. to 90° C. The production process can efficiently produce a high-purity blocked isocyanate compound without substantially producing by-products. In the production process, unlike the prior art technique, since there is no need to use any inert solvent such as toluene or xylene, safety to the human body and environment is excellent and the production processes and equipment can be simplified. The blocked isocyanate compound produced by the production process contains no residual inert solvent and is suitable for use in extensive fields such as various coating agents, adhesives, and molding materials.Type: GrantFiled: October 27, 2005Date of Patent: March 17, 2009Assignee: Showa Denko K.K.Inventors: Hideo Miyata, Masatoshi Murakami, Katsutoshi Ohno
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Publication number: 20090068483Abstract: To provide an acid-modified polypropylene resin which can be used for an adhesive capable of bonding a polyolefin type resin and a polar resin with sufficient force, its production process and a resin composition using it. An acid-modified polypropylene resin, which is obtained by grafting an organic acid component to a polypropylene resin, wherein the polypropylene resin is an isotactic polypropylene resin, the grafted amount X (wt %) of the organic acid component in the acid-modified polypropylene resin is within a range of from 1.0 wt % to 20.0 wt %, and the melt flow rate Y (g/10 min) of the acid-modified polypropylene resin satisfies the expression: Y?18.5 exp(0.82X), a process for producing such an acid-modified polypropylene resin, a resin composition using it and a laminate.Type: ApplicationFiled: April 28, 2006Publication date: March 12, 2009Applicant: Mitsubishi Chemical CorporationInventors: Kenichi Morikawa, Katsutoshi Ohno
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Publication number: 20090054543Abstract: A monomer is provided which is excellent in reactivity, can give high heat resistance and high refractive index, and has two or more polymerizable functional groups with different polymerization properties and an aromatic ring in the molecule. An industrial advantageous process for producing the monomer is also provided. The monomer is an aromatic isocyanate compound containing a (meth)acryloyl group, and is represented by Formula (I): wherein R1 is a single bond or a linear or branched alkylene group of 1 to 5 carbon atoms, R2 is a hydrogen atom or a methyl group, R3 is a single bond or a linear or branched alkylene group of 1 to 3 carbon atoms, X is independently a halogen atom or an electron-withdrawing group, m is an integer ranging from 0 to 4, n is an integer ranging from 1 to 3, and 1?m+n?5.Type: ApplicationFiled: March 15, 2006Publication date: February 26, 2009Applicant: SHOWA DENKO K.K.Inventors: Kaneo Nozawa, Katsutoshi Ohno, Yotaro Hattori
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Publication number: 20090009052Abstract: A phosphor includes Eu-activated YVO4:Eu doped Pith 10 ppm to 3,000 ppm of Tb and/or 50 ppm to 4,500 ppm of Sm. The luminance of light emitted by ultraviolet excitation is higher than that of undoped YVO4:Eu.Type: ApplicationFiled: July 2, 2008Publication date: January 8, 2009Applicant: SONY CORPORATIONInventors: Tsuneo Kusunoki, Masaaki Kawamata, Takahiro Igarashi, Takashi Tamura, Katsutoshi Ohno
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Publication number: 20070265454Abstract: Disclosed is a process for producing a blocked isocyanate compound represented by general formula (III): wherein R1, R2, Q1, and Q2 are as defined in the specification, characterized by comprising reacting a pyrazole compound (I) with an ethylenically unsaturated group-containing isocyanate compound (II) at a temperature in the range of 0° C. to 90° C. The production process can efficiently produce a high-purity blocked isocyanate compound without substantially producing by-products. In the production process, unlike the prior art technique, since there is no need to use any inert solvent such as toluene or xylene, safety to the human body and environment is excellent and the production processes and equipment can be simplified. The blocked isocyanate compound produced by the production process contains no residual inert solvent and is suitable for use in extensive fields such as various coating agents, adhesives, and molding materials.Type: ApplicationFiled: October 27, 2005Publication date: November 15, 2007Applicant: SHOWA DENKO K.K.Inventors: Hideo Miyata, Masatoshi Murakami, Katsutoshi Ohno
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Publication number: 20070188072Abstract: A display apparatus is provided. The display apparatus includes a light source apparatus including a white light source, a blue fluorescent material, a green fluorescent material, a red fluorescent material, a green color filter, and a red color filter. A green chromaticity point of an output of green light to be omitted from the green fluorescent material and a red chromaticity point of an output of red light to be emitted from the red fluorescent material on a chromaticity coordinate system are interconnected by an imaginary straight line which passes only points which are equal to or higher than (0.300, 0.600) with regard to at least one of an x-axis component and a y-axis component of the chromaticity coordinate system.Type: ApplicationFiled: February 7, 2007Publication date: August 16, 2007Applicant: SONY CORPORATIONInventors: Takahiro Igarashi, Tsuneo Kusunoki, Katsutoshi Ohno
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Patent number: 7239071Abstract: There is provided a fluorescent lamp having a construction where no difference is surely caused between a composition of the fluorescent particle mixture at one end portion of the glass tube and a composition of the fluorescent particle mixture at another end portion of the glass tube. The fluorescent lamp includes the glass tube and a fluorescent particle layer, formed on the inner surface of the glass tube, and including a fluorescent particle mixture of blue light emitting fluorescent particles having an average specific gravity of 4.0±0.4, red light emitting fluorescent particles having an average specific gravity of 4.0±0.4, and green light emitting fluorescent particles having an average specific gravity of 4.0±0.4, wherein the fluorescent particle mixture forming the fluorescent particle layer has a specific gravity of 4.0±0.4.Type: GrantFiled: May 5, 2005Date of Patent: July 3, 2007Assignee: Sony CorporationInventors: Takahiro Igarashi, Tsuneo Kusunoki, Katsutoshi Ohno
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Publication number: 20070076946Abstract: Disclosed is an object search apparatus, including: an imaging unit to acquire image data of a point group; a radiation unit to scan the imaging area; a three-dimensional analysis unit to calculate three-dimensional data indicating position coordinates of the point group, from the image data; a master data storage unit to store a master data which is each of the three-dimensional data of a search object to be searched in the imaging area in a plurality of directions; and a judgment unit to position one point of the master data in each direction to each point of the three-dimensional data, to judge whether position coordinates of points of the positioned master data in any direction approach to position coordinates of corresponding points of the three-dimensional data of the imaging area, and to perform a search of the search object based on a result of the judgment.Type: ApplicationFiled: September 29, 2006Publication date: April 5, 2007Applicant: Nachi-Fujikoshi Corp.Inventors: Akira Kunisaki, Masayuki Nakaya, Katsutoshi Ohno
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Publication number: 20070058105Abstract: A liquid crystal display capable of expanding a color reproduction range in the case where a cold cathode fluorescent lamp is used as a light source is provided. A green phosphor of the cold cathode fluorescent lamp includes BaMgAl10O17:Eu, Mn. The wavelength range of a green emission spectrum is located on a shorter wavelength side than that in the case where the green phosphor includes LaPO4:Ce, Tb, so the spectral width of the green emission spectrum is narrower. Therefore, an overlap between the wavelength ranges of green display light and red display light is reduced. Moreover, the spectral characteristics of blue display light (blue spectral characteristics) are set so as to satisfy predetermined conditional expressions. An overlap between the wavelength ranges of the green display light and the blue display light is also reduced.Type: ApplicationFiled: May 16, 2006Publication date: March 15, 2007Applicant: SONY CORPORATIONInventors: Takahiro Igarashi, Tsuneo Kusunoki, Katsutoshi Ohno
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Patent number: 7179572Abstract: The present invention relates to a fluorescent screen forming method, a fluorescent screen forming apparatus and a cathode-ray tube. In the fluorescent screen forming method according to the present invention, a transfer roller lowers a transfer sheet to somewhere above the inner surface of the panel and the transfer roller moves up to the end edge positions of the inner surface of the panel, whereafter the transfer roller moves downwards onto the end edges of the inner surface of the panel in unison with the transfer film to start pressing the transfer film. Therefore, the transfer roller can reach the end edges of the panel, and hence component layers of a fluorescent screen can be transferred up to the end edges of the inner surface of the panel. A fluorescent screen forming apparatus according to the present invention includes a transfer film supply means, a transfer roller, and a control means, wherein operations of the above-mentioned transfer method are executed.Type: GrantFiled: May 31, 2002Date of Patent: February 20, 2007Assignee: Sony CorporationInventors: Katsutoshi Ohno, Koji Fujita
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Publication number: 20070023734Abstract: A phosphor, an optical device, and a display device are provided. The phosphor includes a composition represented by (Sr(1-x-y)CaxBay)(Ga(1-m-n)AlmInn)aS4:Eu, wherein the concentration of europium is in the range of 1 to 9 mole percent; 0?x?1, 0?y?1, and x+y?1; 0?m?1, 0?n?1, and m+n?1; and a main absorption wavelength range of the excitation is selected either a first wavelength range that overlaps the entirety of a reference wavelength range and extends to the shorter wavelength side or a second wavelength range that overlaps the entirety of the reference wavelength range and extends to the longer wavelength side according to value a.Type: ApplicationFiled: July 27, 2006Publication date: February 1, 2007Applicant: SONY CORPORATIONInventors: Takahiro Igarashi, Tsuneo Kusunoki, Katsutoshi Ohno, Isamu Kobori
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Patent number: 7147890Abstract: This invention relates to coated particles used as phosphor particles for a phosphor screen of a display and a coating method for such particles. In the coating method of the present invention, first particles having a mean particle diameter of 3 to 10 ?m are fluidized, and slurry drops obtained by suspending second particles having a mean particle diameter of 5 to 500 nm are generated from a spray nozzle or the like. Then, the fluidized first particles and the slurry drops are collided with each other, and thereby the second particles are coated on the surfaces of the first particles. Thereby, this invention is able to present coated particles wherein each surface of the first particles is uniformly coated with the second particles that are more microscopic than the first particles.Type: GrantFiled: April 4, 2005Date of Patent: December 12, 2006Assignee: Sony CorporationInventors: Takahiro Igarashi, Tsuneo Kusunoki, Katsutoshi Ohno
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Publication number: 20060170319Abstract: A backlight device is provided that realizes high luminance while widening the color range. The backlight device illuminates a transmissive color liquid crystal display panel with white light from a back side of the transmissive color liquid crystal display panel having a color filter made of a three-primary-color filter which selectively transmits light having wavelengths of red light, green light, and blue light. The backlight device includes a plurality of cold cathode fluorescent lamp tubes having tube walls coated with a wide-color-range fluorescent material. The backlight device also includes a diffusion plate which diffuses white light emitted from the cold cathode fluorescent lamp tubes, illuminates the color liquid crystal display panel with the diffused white light, and is positioned at a predetermined distance from the cold cathode fluorescent lamp tubes.Type: ApplicationFiled: January 12, 2006Publication date: August 3, 2006Inventors: Takashi Oku, Yoshinori Yamazaki, Tsuneo Kusunoki, Katsutoshi Ohno, Takahiro Igarashi
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Patent number: 7067192Abstract: A transfer film capable of transferring thin films such as a conducting film, a heat absorption film onto a display apparatus panel, a method for fabricating thin films for a display apparatus panel using the transfer film, and a display apparatus having thin films fabricated by the method are provided. The transfer film is constructed by forming a conducting film layer and an adhesion layer on a base film. The transfer film is disposed on the display apparatus, and a heat pressure adhesive bonding process is performed to transfer the conducting film layer to the display apparatus. A high quality display apparatus is realized by fabricating a high quality conducting film using the transferring process.Type: GrantFiled: March 1, 2005Date of Patent: June 27, 2006Assignee: Sony CorporationInventors: Koji Fujita, Katsutoshi Ohno, Kazumasa Nomura
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Patent number: 7045180Abstract: According to the present invention, in a thermosensitive transfer film F in which at least a fluorescent substance layer 3 and an adhesive agent layer 4 are deposited onto a base film 1, this adhesive agent layer 4 is produced by mixing at least a pigment corresponding to a color of the fluorescent substance layer 3, a thermosensitive agent and a photosensitizer. Also, a display device manufacturing method comprises the steps of forming patterning by exposure and development and using the adhesive agent layer 4 as a color filter layer after the fluorescent substance layer 3 and the adhesive layer 4 have been transferred onto the inner surface of the display panel from this thermosensitive transfer film F. Thus, in the thermosensitive transfer film in which layers are formed by the transfer process, work efficiency of the transfer process can be improved, and the sharp pattern can be formed.Type: GrantFiled: April 8, 2004Date of Patent: May 16, 2006Assignees: Sony Corporation, Nippon Paper Industries Co., Ltd.Inventors: Koji Fujita, Katsutoshi Ohno, Norio Yabe
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Patent number: 7011886Abstract: A transfer film capable of transferring thin films, such as a conducting film, a heat absorption film onto a display apparatus panel, a method for fabricating thin films for a display apparatus panel using the transfer film, and a display apparatus having thin films fabricated by the method are provided. The transfer film is constructed by forming a conducting film layer and an adhesion layer on a base film. The transfer film is disposed on the display apparatus, and a heat pressure adhesive bonding process is performed to transfer the conducting film layer to the display apparatus. A high quality display apparatus is realized by fabricating a high quality conducting film using the transferring process.Type: GrantFiled: March 1, 2005Date of Patent: March 14, 2006Assignee: Sony CorporationInventors: Koji Fujita, Katsutoshi Ohno, Kazumasa Nomura
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Publication number: 20060050015Abstract: The present invention aims at compatibility between the improvement in luminance or suppression of deterioration in luminance and the improvement in contrast with respect to a display apparatus and a color cathode-ray tube. Each of the display apparatus and the color cathode-ray tube according to the present invention includes: a fluorescent screen having a color-filter layer and a phosphor layer, which is formed inside a panel glass having light transmissivity of 55% to 20% when a wavelength is 546 nm and a plate thickness is 20 mm and in which at least the phosphor layer is formed by the transfer method.Type: ApplicationFiled: November 20, 2003Publication date: March 9, 2006Inventors: Tsuneo Kusunoki, Katsutoshi Ohno, Koji Fujita, Takahiro Igarashi
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Publication number: 20050258733Abstract: There is provided a fluorescent lamp having construction where no difference is surely caused between a composition of the fluorescent particle mixture at one end portion of the glass tube and a composition of the fluorescent particle mixture at another end portion of the glass tube. The fluorescent lamp includes the glass tube and a fluorescent particle layer, formed on the inner surface of the glass tube, including a fluorescent particle mixture of blue light emitting fluorescent particles having an average specific gravity of 4.0±0.4, red light emitting fluorescent particles having an average specific gravity of 4.0±0.4, and green light emitting fluorescent particles having an average specific gravity of 4.0±0.4, wherein the fluorescent particle mixture forming the fluorescent particle layer has a specific gravity of 4.0±0.4.Type: ApplicationFiled: May 5, 2005Publication date: November 24, 2005Applicant: Sony CorporationInventors: Takahiro Igarashi, Tsuneo Kusunoki, Katsutoshi Ohno