Patents by Inventor Yumi Ito
Yumi Ito 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: 8471283Abstract: A white LED lamp including: a conductive portion; a light emitting diode chip mounted on the conductive portion, for emitting a primary light having a peak wavelength of 360 nm to 420 nm; a transparent resin layer including a first hardened transparent resin, for sealing the light emitting diode chip; and a phosphor layer covering the transparent resin layer, the phosphor layer being formed by dispersing a phosphor powder into a second hardened transparent resin, and the phosphor powder receiving the primary light and radiating a secondary light having a wavelength longer than that of the primary light. An energy of the primary light contained in the radiated secondary light is 0.4 mW/lm or less. In the white LED lamp, a backlight, and an illumination device using the white LED lamp an amount of UV light to be contained in the released light and an amount of heat to be generated from the lamp are decreased to be small.Type: GrantFiled: February 19, 2009Date of Patent: June 25, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.Inventors: Tsutomu Ishii, Hajime Takeuchi, Yasumasa Ooya, Katsutoshi Nakagawa, Yumi Ito, Masaki Toyoshima, Yasuhiro Shirakawa, Ryo Sakai
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Patent number: 8426882Abstract: A white light emitting lamp 1 includes a phosphor layer 5 which emits white light by being excited by light emitted from a semiconductor light emitting element 2. A transparent resin layer 4 is interposed between the semiconductor light emitting element 2 and the phosphor layer 5. The phosphor layer 5 contains, as a green phosphor, a rare earth borate phosphor activated by trivalent cerium and terbium.Type: GrantFiled: September 19, 2008Date of Patent: April 23, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.Inventors: Ryo Sakai, Tsutomu Ishii, Yasuhiro Shirakawa, Masahiko Yamakawa, Yumi Ito
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Publication number: 20130010456Abstract: A white LED lamp including: a conductive portion; a light emitting diode chip mounted on the conductive portion, for emitting a primary light having a peak wavelength of 360 nm to 420 nm; a transparent resin layer including a first hardened transparent resin, for sealing the light emitting diode chip; and a phosphor layer covering the transparent resin layer, the phosphor layer being formed by dispersing a phosphor powder into a second hardened transparent resin, and the phosphor powder receiving the primary light and radiating a secondary light having a wavelength longer than that of the primary light. An energy of the primary light contained in the radiated secondary light is 0.4 mW/Im or less.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Applicants: TOSHIBA MATERIALS CO., LTD., KABUSHIKI KAISHA TOSHIBAInventors: Tsutomu ISHII, Hajime TAKEUCHI, Yasumasa OOYA, Katsutoshi NAKAGAWA, Yumi ITO, Masaki TOYOSHIMA, Yasuhiro SHIRAKAWA, Ryo SAKAI
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Patent number: 8288937Abstract: A white LED includes a light emitting element with a light emission peak wavelength equal to or longer than 380 nm and equal to or shorter than 420 nm, and a phosphor layer containing three or more types of phosphors including at least a blue phosphor, a green phosphor, and a red phosphor and disposed in a manner to cover at least part of the light emitting element. The phosphor layer has a first phosphor layer and a second phosphor layer disposed in an opposite side of a side of the light emitting element of the first phosphor layer. In the first phosphor layer, a content of the blue phosphor in an entire phosphor contained in the first phosphor layer is equal to or less than 5 mass %, or the blue phosphor is not contained. In the second phosphor layer, a content of phosphor other than the blue phosphor in an entire phosphor contained in the second phosphor layer is equal to or less than 5 mass %, or no phosphor other than the blue phosphor is contained.Type: GrantFiled: November 30, 2010Date of Patent: October 16, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.Inventors: Tsutomu Ishii, Yasumasa Ooya, Ryo Sakai, Katsutoshi Nakagawa, Hajime Takeuchi, Yumi Ito, Yasuhiro Shirakawa
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Publication number: 20120223352Abstract: An LED light emitting device is provided that has high color rendering properties and is excellent color uniformity and, at the same time, can realize even luminescence unattainable by conventional techniques. A phosphor having a composition represented by formula: (Sr2-X-Y-Z-?BaXMgYMnZEu?)SiO4 wherein x, y, z, and u are respectively coefficients satisfying 0.1<x<1, 0<y<0.5, 0<z<0.1, y>z, and 0.01<?<0.2. is provided. The phosphor is used in combination with ultraviolet and blue light emitting diodes having a luminescence peak wavelength of 360 to 470 nm to form an LED light emitting device.Type: ApplicationFiled: May 14, 2012Publication date: September 6, 2012Applicants: Toshiba Materials Co., Ltd., Kabushiki Kaisha ToshibaInventors: Tsutomu ISHII, Yoshitaka FUNAYAMA, Yumi ITO, Yasumasa OOYA, Ryo SAKAI, Katsutoshi NAKAGAWA, Hajime TAKEUCHI, Yasuhiro SHIRAKAWA
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Patent number: 8173573Abstract: In one embodiment, a visible light responsive photocatalyst powder has organic gas decomposition performance that responds nonlinearly to an amount of irradiated light under visible light in an illuminance range of not less than 200 lx nor more than 2500 lx. The visible light responsive photocatalyst powder has a gas decomposition rate of 20% or more, for example, when visible light having only a wavelength of not less than 380 nm and an illuminance of 2500 lx is irradiated, the gas decomposition rate (%) being set as a value calculated based on [formula: (A?B)/A×100], where A represents a gas concentration before light irradiation and B represents a gas concentration when not less than 15 minutes have elapsed from the light irradiation and, at the same time, the gas concentration is stable, the gas concentrations being measured while allowing an acetaldehyde gas having an initial concentration of 10 ppm to flow into a flow-type apparatus in which 0.2 g of a sample is placed.Type: GrantFiled: July 27, 2010Date of Patent: May 8, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.Inventors: Kayo Nakano, Akira Sato, Yasuhiro Shirakawa, Keiichi Fuse, Masami Okamura, Shinya Kasamatsu, Yumi Ito
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Publication number: 20110128466Abstract: A white LED includes a light emitting element with a light emission peak wavelength equal to or longer than 380 nm and equal to or shorter than 420 nm, and a phosphor layer containing three or more types of phosphors including at least a blue phosphor, a green phosphor, and a red phosphor and disposed in a manner to cover at least part of the light emitting element. The phosphor layer has a first phosphor layer and a second phosphor layer disposed in an opposite side of a side of the light emitting element of the first phosphor layer. In the first phosphor layer, a content of the blue phosphor in an entire phosphor contained in the first phosphor layer is equal to or less than 5 mass %, or the blue phosphor is not contained. In the second phosphor layer, a content of phosphor other than the blue phosphor in an entire phosphor contained in the second phosphor layer is equal to or less than 5 mass %, or no phosphor other than the blue phosphor is contained.Type: ApplicationFiled: November 30, 2010Publication date: June 2, 2011Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.Inventors: Tsutomu ISHII, Yasumasa Ooya, Ryo Sakai, Katsutoshi Nakagawa, Hajime Takeuchi, Yumi Ito, Yasuhiro Shirakawa
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Publication number: 20110006325Abstract: An LED light emitting device is provided that has high color rendering properties and is excellent color uniformity and, at the same time, can realize even luminescence unattainable by conventional techniques. A phosphor having a composition represented by formula: (Sr2-X-Y-Z-?BaXMgYMnZEu?)SiO4 wherein x, y, z, and ? are respectively coefficients satisfying 0.1<x<1, 0<y<0.5, 0<z<0.1, y>z, and 0.01<?<0.2 is provided. The phosphor is used in combination with ultraviolet and blue light emitting diodes having a luminescence peak wavelength of 360 to 470 nm to form an LED light emitting device.Type: ApplicationFiled: December 4, 2008Publication date: January 13, 2011Inventors: Tsutomu Ishii, Yoshitaka Funayama, Yumi Ito, Yasumasa Ooya, Ryo Sakai, Katsutoshi Nakagawa, Hajime Takeuchi, Yasuhiro Shirakawa
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Publication number: 20110006334Abstract: A white LED lamp including: a conductive portion; a light emitting diode chip mounted on the conductive portion, for emitting a primary light having a peak wavelength of 360 nm to 420 nm; a transparent resin layer including a first hardened transparent resin, for sealing the light emitting diode chip; and a phosphor layer covering the transparent resin layer, the phosphor layer being formed by dispersing a phosphor powder into a second hardened transparent resin, and the phosphor powder receiving the primary light and radiating a secondary light having a wavelength longer than that of the primary light. An energy of the primary light contained in the radiated secondary light is 0.4 mW/lm or less. In the white LED lamp, a backlight, and an illumination device using the white LED lamp an amount of UV light to be contained in the released light and an amount of heat to be generated from the lamp are decreased to be small.Type: ApplicationFiled: February 19, 2009Publication date: January 13, 2011Applicants: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.Inventors: Tsutomu Ishii, Hajime Takeuchi, Yasumasa Ooya, Katsutoshi Nakagawa, Yumi Ito, Masaki Toyoshima, Yasuhiro Shirakawa, Ryo Sakai
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Publication number: 20100292075Abstract: In one embodiment, a visible light responsive photocatalyst powder has organic gas decomposition performance that responds nonlinearly to an amount of irradiated light under visible light in an illuminance range of not less than 200 lx nor more than 2500 lx. The visible light responsive photocatalyst powder has a gas decomposition rate of 20% or more, for example, when visible light having only a wavelength of not less than 380 nm and an illuminance of 2500 lx is irradiated, the gas decomposition rate (%) being set as a value calculated based on [formula: (A?B)/A×100], where A represents a gas concentration before light irradiation and B represents a gas concentration when not less than 15 minutes have elapsed from the light irradiation and, at the same time, the gas concentration is stable, the gas concentrations being measured while allowing an acetaldehyde gas having an initial concentration of 10 ppm to flow into a flow-type apparatus in which 0.2 g of a sample is placed.Type: ApplicationFiled: July 27, 2010Publication date: November 18, 2010Inventors: Kayo NAKANO, Akira Sato, Yasuhiro Shirakawa, Keiichi Fuse, Masami Okamura, Shinya Kasamatsu, Yumi Ito
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Publication number: 20100237361Abstract: A white light emitting lamp 1 includes a phosphor layer 5 which emits white light by being excited by light emitted from a semiconductor light emitting element 2. A transparent resin layer 4 is interposed between the semiconductor light emitting element 2 and the phosphor layer 5. The phosphor layer 5 contains, as a green phosphor, a rare earth borate phosphor activated by trivalent cerium and terbium.Type: ApplicationFiled: September 19, 2008Publication date: September 23, 2010Applicants: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.Inventors: Ryo Sakai, Tsutomu Ishii, Yasuhiro Shirakawa, Masahiko Yamakawa, Yumi Ito
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Publication number: 20100037179Abstract: The present invention provides a display control apparatus including a display control unit that causes a display apparatus to display thumbnails of a plurality of pieces of content by associating with a date/time display showing date/time information of a predetermined period for each piece of the date/time information of thumbnails of the plurality of pieces of content, and a selection unit that selects one of thumbnails of the plurality of pieces of content displayed in the display apparatus in accordance with a user operation, wherein the display control unit causes the display apparatus to display thumbnails of one piece or more than one pieces of content corresponding to date information of a thumbnail of one piece of content selected by the selection unit by arranging thumbnails of the content clockwise in descending order of time.Type: ApplicationFiled: July 23, 2009Publication date: February 11, 2010Applicant: Sony CorporationInventor: Yumi Ito
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Publication number: 20100031293Abstract: Disclosed herein is a program listing display control apparatus including: a program listing picture storage block configured to store a program listing picture in which are disposed program time slots to which a plurality of broadcast programs are allocated; a display control block configured to control a display apparatus to display the program listing picture; a control information input block configured to input control information for controlling the acquisition of additional information to be added to the program listing picture; and an information acquisition block configured to acquire program identification information for identifying the programs to which the additional information is added and the additional information regarding the programs identified by the program identification information, on the basis of the control information input through the control information input block.Type: ApplicationFiled: July 30, 2009Publication date: February 4, 2010Applicant: Sony CorporationInventors: Junya Ohde, Yumi Ito
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Publication number: 20100011395Abstract: An information processing unit includes: a receiving unit which receives, via a communication network, first specifying information which is used by a content source to specify the content, from a display device which receives and displays broadcast content; a converting unit which, upon retrieval request from the display device for related information which is related to the content, converts the first specifying information into second specifying information, which is used by a source of the related information to specify the content; a retrieval controlling unit which transmits the second specifying information to a retrieval device, which retrieves the related information based on the second specifying information, via the communication network and controls retrieval of the related information; and a providing unit which provides the display device with the related information acquired from the retrieval device via the communication network upon retrieval request for the related information to the retrievType: ApplicationFiled: June 3, 2009Publication date: January 14, 2010Applicant: Sony CorporationInventor: Yumi Ito
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Publication number: 20060067914Abstract: The present invention provides an immortalized natural killer cell line retaining the function and characteristics intrinsic to natural killer cells, a method for establishing the same, a method for screening for useful substances using the immortalized natural killer cell line, and a cell vaccine. By culturing natural killer cells obtained by isolating natural killer cells from the spleen of a transgenic mouse to which a large T-antigen gene of SV40 temperature-sensitive mutant tsA58 is introduced, a cell line which proliferates and activates in the presence of Interleukin-2, has azurophilic granules within cytoplasm, and retains an ability to kill a target cell without presensitization and/or an ability to kill target cells coated with an antibody, is established.Type: ApplicationFiled: April 26, 2005Publication date: March 30, 2006Inventors: Satoru Iizuka, Toshiyuki Takai, Yumi Ito, Kozue Ito, Masuo Obinata
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Patent number: 6670005Abstract: The disclosed method can manufacture a thick-walled cylindrical part of an excellent quality which is free from the interlayer separation, by using a fiber reinforced plastic composite material. The fiber reinforced plastic composite material having a small thermal expansion coefficient is laminated in the circumferential direction of a mandrel; the laminated fiber reinforced plastic composite material layer is heat-cured to form an auxiliary member of the mandrel; a plurality of sorts of fiber reinforced plastic composite materials having a different elastic modulus, respectively are laminated on the formed auxiliary member; and the laminated fiber reinforced plastic composite materials are all heat-cured.Type: GrantFiled: September 23, 1998Date of Patent: December 30, 2003Assignee: Fuji Jukogyo Kabushiki KaishaInventors: Minoru Kimura, Haruko Nagai, Yumi Ito, Naoya Takizawa, Takashi Nagumo
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Patent number: 6299718Abstract: The disclosed method can manufacture a thick-walled cylindrical part of an excellent quality which is free from the interlayer separation, by using a fiber reinforced plastic composite material. The fiber reinforced plastic composite material having a small thermal expansion coefficient is laminated in the circumferential direction of a mandrel; the laminated fiber reinforced plastic composite material layer is heat-cured to form an auxiliary member of the mandrel; a plurality of sorts of fiber reinforced plastic composite materials having a different elastic modulus, respectively are laminated on the formed auxiliary member; and the laminated fiber reinforced plastic composite materials are all heat-cured.Type: GrantFiled: July 6, 1999Date of Patent: October 9, 2001Assignee: Fuji Jukogyo Kabushiki KaishaInventors: Minoru Kimura, Haruko Nagai, Yumi Ito, Naoya Takizawa, Takashi Nagumo
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Publication number: 20010008163Abstract: The disclosed method can manufacture a thick-walled cylindrical part of an excellent quality which is free from the interlayer separation, by using a fiber reinforced plastic composite material.Type: ApplicationFiled: September 23, 1998Publication date: July 19, 2001Inventors: MINORU KIMURA, HARUKO NAGAI, YUMI ITO, NAOYA TAKIZAWA, TAKASHI NAGUMO
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Patent number: 5985073Abstract: The disclosed method can manufacture a thick-walled cylindrical part of an excellent quality which is free from the interlayer separation, by using a fiber reinforced plastic composite material. The fiber reinforced plastic composite material having a small thermal expansion coefficient is laminated in the circumferential direction of a mandrel; the laminated fiber reinforced plastic composite material layer is heat-cured to form an auxiliary member of the mandrel; a plurality of sorts of fiber reinforced plastic composite materials having a different elastic modulus, respectively are laminated on the formed auxiliary member; and the laminated fiber reinforced plastic composite materials are all heat-cured.Type: GrantFiled: June 5, 1997Date of Patent: November 16, 1999Assignee: Fuji Jukogyo Kabushiki KaishaInventors: Minoru Kimura, Haruko Nagai, Yumi Ito, Naoya Takizawa, Takashi Nagumo