Patents by Inventor Seiji Take
Seiji Take 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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Publication number: 20090007726Abstract: The main object of the present invention is to provide an InSb nanoparticle to be dispersed independently, InSb nanoparticle dispersion and a method for producing an InSb nanoparticle. The object of the present invention is achieved by providing an InSb nanoparticle having an average particle size in a range of 2 nm to 200 nm, capable of being dispersed and to be dispersed independently in a dispersion medium.Type: ApplicationFiled: April 24, 2008Publication date: January 8, 2009Inventor: Seiji TAKE
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Patent number: 7259320Abstract: The main object of the present invention is to provide thermoelectric conversion materials having a high thermoelectric conversion performance and excellent mass productivity. The thermoelectric conversion materials have a core-shell structure with a plurality of core parts and shell parts for covering the core parts. The plurality of core parts are independent of each other and the shell parts are provided continuously such that the shell part of one core part is continuous with the shell part of a different core part.Type: GrantFiled: March 22, 2005Date of Patent: August 21, 2007Assignee: Dai Nippon Printing Co., Ltd.Inventor: Seiji Take
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Patent number: 7255922Abstract: The main object of the present invention is to provide an inorganic nanoparticle being a skutterudite compound, expected to realize the quantum effect, and a method for producing the same. The object of the present invention is achieved by providing an inorganic nanoparticle being a skutterudite compound, having the average particle size in a range of 2 nm to 100 nm.Type: GrantFiled: May 13, 2005Date of Patent: August 14, 2007Assignee: Dai Nippon Printing Co., Ltd.Inventor: Seiji Take
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Publication number: 20060094860Abstract: The main object of the present invention is to provide an InSb nanoparticle to be dispersed independently, InSb nanoparticle dispersion and a method for producing an InSb nanoparticle. The object of the present invention is achieved by providing an InSb nanoparticle having an average particle size in a range of 2 nm to 200 nm, capable of being dispersed and to be dispersed independently in a dispersion medium.Type: ApplicationFiled: October 28, 2005Publication date: May 4, 2006Inventor: Seiji Take
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Publication number: 20050268956Abstract: The main object of the present invention is to provide the thermoelectric conversion materials having a high thermoelectric conversion performance and the excellent mass productivity. The object of the present invention is achieved by providing the thermoelectric conversion materials comprising a core-shell structure having a plurality of core parts and shell parts for covering the above-mentioned core parts, wherein the plurality of the above-mentioned core parts are independent with each other and the above-mentioned shell parts are provided continuously.Type: ApplicationFiled: March 22, 2005Publication date: December 8, 2005Inventor: Seiji Take
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Publication number: 20050255319Abstract: The main object of the present invention is to provide an inorganic nanoparticle being a skutterudite compound, expected to realize the quantum effect, and a method for producing the same. The object of the present invention is achieved by providing an inorganic nanoparticle being a skutterudite compound, having the average particle size in a range of 2 nm to 100 nm.Type: ApplicationFiled: May 13, 2005Publication date: November 17, 2005Inventor: Seiji Take
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Patent number: 6013603Abstract: An image-receiving sheet having an opaque detection mark formed by coating a resin varnish comprising a resin, a low-boiling good solvent, and a high-boiling poor solvent, the detection mark being rendered transparent upon heating, the resin comprising a terpolymer of vinyl chloride, vinyl acetate, and vinyl alcohol monomers. By virtue of this constitution, before image formation, the detection mark has high opacity and can be detected in high sensitivity, that is, does not cause a lowering in infrared radiation transmission or reflectance properties before heating at the time of image information, while when an image is formed by means of a copying machine or a printer in high-processing electrophotographic system, thermal transfer system or the like, heating and application of pressure at the time of image formation erases the detection mark to such an extent that the detection mark is no longer visually noticeable.Type: GrantFiled: July 15, 1998Date of Patent: January 11, 2000Assignee: Dai Nippon Printing Co., Ltd.Inventors: Mikio Asajima, Seiji Take
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Patent number: 5981123Abstract: The present invention relates to an electrostatic information recording medium in which a charge retaining layer having high insulating properties is laminated on an electrode, and an electrostatic information recording/reproducing process wherein, while said electrostatic information recording medium is positioned in opposition to a photosensitive member on which a photoconductive layer is laminated, the recording medium is subjected to information exposure with the application of voltage between both electrodes to accumulate electrostatic charges thereon depending upon the dosage of said information exposure, and the electrostatic information thus accumulated is reproduced by potential reading.The present electrostatic information recording medium has an information density as expressed in terms of a high recording capacity of the order of 8.times.10.sup.8 bits/cm.sup.Type: GrantFiled: September 22, 1997Date of Patent: November 9, 1999Assignee: Dai Nippon Printing Co. Ltd.Inventors: Makoto Matsuo, Minoru Utsumi, Masayuki Iijima, Yukio Taniguchi, Hiroyuki Obata, Seiji Take
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Patent number: 5731116Abstract: The present invention relates to an electrostatic information recording medium in which a charge retaining layer having high insulating properties is laminated on an electrode, and an electrostatic information recording/reproducing process wherein, while said electrostatic information recording medium is positioned in opposition to a photosensitive member on which a photoconductive layer is laminated, the recording medium is subjected to information exposure with the application of voltage between both electrodes to accumulate electrostatic charges thereon depending upon the dosage of said information exposure, and the electrostatic information thus accumulated is reproduced by potential reading.The present electrostatic information recording medium has an information density as expressed in terms of a high recording capacity of the order of 8.times.10.sup.8 bits/cm.sup.Type: GrantFiled: May 26, 1995Date of Patent: March 24, 1998Assignee: Dai Nippon Printing Co., Ltd.Inventors: Makoto Matsuo, Minoru Utsumi, Masayuki Iijima, Yukio Taniguchi, Hiroyuki Obata, Seiji Take
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Patent number: 5718996Abstract: The electrostatic information recording medium according to the present invention comprises an electrode layer and an electric charge retaining layer. By improving the laminating method of electric charge retaining layer or by improving the layer arrangement or by converting electrostatic information to the visible information or position information, high information retaining property can be obtained and the accumulated electrostatic information can be maintained for long period.In the electrostatic information recording method according to the present invention, an electrostatic information recording medium is placed face-to-face to a photosensitive member having photoconductive layer on an electrode. The image exposure is performed by applying voltage between two electrodes, and the electrostatic information corresponding to the image exposure is recorded on the electrostatic information recording medium.Type: GrantFiled: August 27, 1996Date of Patent: February 17, 1998Assignee: Dai Nippon Printing Co., Ltd.Inventors: Masayuki Iijima, Kyoji Dantani, Hiroyuki Obata, Makoto Matsuo, Minoru Utsumi, Seiji Take
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Patent number: 5683838Abstract: Information recording media enable images to be recorded and reproduced with high resolution, wherein oozing of liquid crystal material thereof is prevented and the information is recorded without unevenness. A first recording medium has an information recording layer comprising a liquid crystal phase and an ultraviolet curing resin phase. The information recording layer is stacked on an electrode layer provided on a substrate by coating a mixed solution of liquid crystal and ultraviolet curing resin material on the surface of the electrode layer and then irradiating the coating by irradiation with ultraviolet rays, thereby forming a cured skin layer of the resin material on the outer surface of the information recording layer. A second recording medium has a transparent electrode layer additionally provided on the information recording layer of the first recording medium.Type: GrantFiled: December 29, 1995Date of Patent: November 4, 1997Assignee: Dai Nippon Printing Co., Ltd.Inventors: Masayuki Iijima, Seiji Take, Hironori Kamiyama, Masato Okabe, Hiroyuki Obata, Minoru Utsumi
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Patent number: 5660958Abstract: Information recording media enable images to be recorded and reproduced with high resolution, wherein oozing of liquid crystal material thereof is prevented and the information recorded without unevenness. A first recording medium has an information recording layer comprising a liquid crystal phase and an ultraviolet curing resin phase. The information recording layer is stacked on an electrode layer provided on a substrate by coating a mixed solution of liquid crystal and ultraviolet curing resin material on the surface of the electrode layer and then irradiating the coating by irradiation with ultraviolet rays, thereby forming a cured skin layer of the resin material on the outer surface of the information recording layer. A second recording medium has a transparent electrode layer additionally provided on the information recording layer of the first recording medium.Type: GrantFiled: June 7, 1995Date of Patent: August 26, 1997Assignee: Dai Nippon Printing Co., Ltd.Inventors: Masayuki Iijima, Seiji Take, Hironori Kamiyama, Masato Okabe, Hiroyuki Obata, Minoru Utsumi
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Patent number: 5587264Abstract: The electrostatic information recording medium according to the present invention comprises an electrode layer and an electric charge retaining layer. By improving the laminating method of electric charge retaining layer or by improving the layer arrangement or by converting electrostatic information to the visible information or position information, high information retaining property can be obtained and the accumulated electrostatic information can be maintained for long period.In the electrostatic information recording method according to the present invention, an electrostatic information recording medium is placed face-to-face to a photosensitive member having photoconductive layer on an electrode. The image exposure is performed by applying voltage between two electrodes, and the electrostatic information corresponding to the image exposure is recorded on the electrostatic information recording medium.Type: GrantFiled: June 5, 1995Date of Patent: December 24, 1996Assignee: Dai Nippon Printing Co. Ltd.Inventors: Masayuki Iijima, Kyoji Dantani, Hiroyuki Obata, Makoto Matsuo, Minoru Utsumi, Seiji Take
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Patent number: 5571646Abstract: The present invention provides an electrostatic information-recording medium including an electrode layer (13) and a charge-retaining layer, in which said charge-retaining layer is formed of a laminate of a resin layer (11a) having a low glass transition temperature with a heat-resistant, insulating layer (11b), or an electrostatic information-recording medium comprising at least an electrode layer (13) and a charge-retaining layer (11) in which said charge-retaining layer (11) is formed of a polymer layer (12) containing pentafluorostyrene as a monomer component and having a weight-average molecular weight of 10,000 to 2,000,000, or which includes a photoconductive layer (44) and a charge-retaining layer (43) between a pair of electrodes (42) and (45) and is designed to carry out exposure with the application of voltage between both said electrodes (42) and (45) or apply voltage between both said electrodes (42) and (45) while exposure is carried out, thereby forming an electrostatic latent image, which is tType: GrantFiled: November 17, 1995Date of Patent: November 5, 1996Assignee: Dai Nippon Printing Co., Ltd.Inventors: Minoru Utsumi, Hiroyuki Obata, Seiji Take, Masayuki Iijima, Hironori Kamiyama
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Patent number: 5514504Abstract: Information recording media enable images to be recorded and reproduced with high resolution, wherein oozing of liquid crystal material thereof is prevented and the information recorded without unevenness. A first recording medium has an information recording layer comprising a liquid crystal phase and an ultraviolet curing resin phase. The information recording layer is stacked on an electrode layer provided on a substrate by coating a mixed solution of liquid crystal and ultraviolet curing resin material on the surface of the electrode layer and then irradiating the coating by irradiation with ultraviolet rays, thereby forming a cured skin layer of the resin material on the outer surface of the information recording layer. A second recording medium has a transparent electrode layer additionally provided on the information recording layer of the first recording medium.Type: GrantFiled: April 19, 1993Date of Patent: May 7, 1996Assignee: Dai Nippon Printing Co., Ltd.Inventors: Masayuki Iijima, Seiji Take, Hironori Kamiyama, Masato Okabe, Hiroyuki Obata, Minoru Utsumi
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Patent number: 5492783Abstract: The present invention provides an electrostatic information-recording medium including an electrode layer (13) and a charge-retaining layer, in which said charge-retaining layer is formed of a laminate of a resin layer (11a) having a low glass transition temperature with a heat-resistant, insulating layer (11b), or an electrostatic information-recording medium comprising at least an electrode layer (13) and a charge-retaining layer (11) in which said charge-retaining layer (11) is formed of a polymer layer (12) containing pentafluorostyrene as a monomer component and having a weight-average molecular weight of 10,000 to 2,000,000, or which includes a photoconductive layer (44) and a charge-retaining layer (43) between a pair of electrodes (42) and (45) and is designed to carry out exposure with the application of voltage between both said electrodes (42) and (45) or apply voltage between both said electrodes (42) and (45) while exposure is carried out, thereby forming an electrostatic latent image, which is tType: GrantFiled: September 24, 1993Date of Patent: February 20, 1996Assignee: Dai Nippon Printing Co., Ltd.Inventors: Minoru Utsumi, Hiroyuki Obata, Seiji Take, Masayuki Iijima, Hironori Kamiyama
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Patent number: 5439768Abstract: The present invention relates to an electrostatic information recording medium in which a charge retaining layer having high insulating properties is laminated on an electrode, and an electrostatic information recording/reproducing process wherein, while said electrostatic information recording medium is positioned in opposition to a photosensitive member on which a photoconductive layer is laminated, the recording medium is subjected to information exposure with the application of voltage between both electrodes to accumulate electrostatic charges thereon depending upon the dosage of said information exposure, and the electrostatic information thus accumulated is reproduced by potential reading.The present electrostatic information recording medium has an information density as expressed in terms of a high recording capacity of the order of 8.times.10.sup.8 bits/cm.sup.Type: GrantFiled: November 20, 1990Date of Patent: August 8, 1995Assignee: Dai Nippon Printing Co., Ltd.Inventors: Makoto Matsuo, Minoru Utsumi, Masayuki Iijima, Yukio Taniguchi, Hiroyuki Obata, Seiji Take
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Patent number: 4981746Abstract: The heat-sensitive stencil sheet of the present invention is a heat-sensitive stencil sheet including a thermoplastic film (3) laminated through an adhesive layer (2) on one surface of a porous base (1). The adhesive layer includes an ionizing-radiation-curable adhesive, and therefore the above porous support (1) and the thermoplastic film (3) can be rapidly and firmly adhered together, and yet printing resistance during printing can be improved simultaneously with the additional excellent effect of making the printed image sharper.Type: GrantFiled: April 27, 1989Date of Patent: January 1, 1991Assignee: Dai Nippon Insatsu Kabushiki KaishaInventors: Makoto Matsuo, Ryohei Takiguchi, Masayuki Ando, Mitsuru Tsuchiya, Seiji Take, Kazue Ikarashi, Kenichi Takeda
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Patent number: 4841134Abstract: The IC card of the present invention comprises an IC card comprising an IC module embedded in a card substrate, said IC card having a reinforcing sheet layer laid in the planar direction of the card so as to cover at least the peripheral portion of the boundary between the card substrate and the IC module, and/or has a reinforcing member comprising at least a part of the side portion of said IC module extended in the outer circumferential direction, and it is excellent in mechanical strength and flexibility against bending of card.Type: GrantFiled: July 25, 1986Date of Patent: June 20, 1989Assignee: Dai Nippon Insatsu Kabushika KaishaInventors: Yoshiaki Hida, Satoshi Ishihara, Seiji Take, Masao Gogami, Toshiyuki Suzuki