Patents by Inventor Niro Watanabe
Niro Watanabe 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: 6045953Abstract: A photosensitive recording material comprising an alicyclic, solvent-soluble, thermosetting epoxy oligomer capable of cationic polymerization, the oligomer being of a specified structure, an aliphatic monomer having at least one ethylenically unsaturated bond, the monomer being liquid at normal temperature and pressure, having a boiling point of 100.degree. C. or above at normal pressure and being capable of radical polymerization, a photoinitiator selected from the group consisting of i) a first photoinitiator capable of simultaneously generating a radical species that activates radical polymerization and a Br.o slashed.nsted acid or Lewis acid that activates cationic polymerization, upon exposure to actinic radiation, and ii) a second photoinitiator comprised of a radical polymerization photoinitiator capable of generating a radical species that activates radical polymerization upon exposure to actinic radiation and a cationic polymerization photoinitiator capable of generating a Br.o slashed.Type: GrantFiled: May 6, 1997Date of Patent: April 4, 2000Assignee: Toppan Printing Co., Ltd.Inventors: Yasushi Ohe, Hiromitsu Ito, Niro Watanabe
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Patent number: 5837646Abstract: A reversible thermal recording medium having a core material capable of being change in state by heat and a recording layer including capsules containing this core material. A repeatability corresponding to the limit of possible repeated recording/erasing effected by a physical or chemical change in the material constituting the recording can be obtained. A deterioration in image quality caused by transfer of a part of the recording layer to the heating unit can be prevented and repeat characteristics can be improved, thereby limiting the running cost.Type: GrantFiled: January 15, 1997Date of Patent: November 17, 1998Assignees: Toppan Printing Co., Ltd., Mitsubishi Denki Kabushiki KaishaInventors: Niro Watanabe, Yuji Nakatsu, Keiki Yamada, Masaru Ohnishi
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Patent number: 5837647Abstract: A reversible thermal recording medium having a core material capable of being change in state by heat and a recording layer including capsules containing this core material. A repeatability corresponding to the limit of possible repeated recording/erasing effected by a physical or chemical change in the material constituting the recording can be obtained. A deterioration in image quality caused by transfer of a part of the recording layer to the heating unit can be prevented and repeat characteristics can be improved, thereby limiting the running cost.Type: GrantFiled: January 15, 1997Date of Patent: November 17, 1998Assignees: Toppan Printing Co., Ltd., Mitsubishi Denki Kabushiki KaishaInventors: Niro Watanabe, Yuji Nakatsu, Keiki Yamada, Masaru Ohnishi
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Patent number: 5837348Abstract: A reversible thermal recording medium having a core material capable of being change in state by heat and a recording layer including capsules containing this core material. A repeatability corresponding to the limit of possible repeated recording/erasing effected by a physical or chemical change in the material constituting the recording can be obtained. A deterioration in image quality caused by transfer of a part of the recording layer to the heating unit can be prevented and repeat characteristics can be improved, thereby limiting the running cost.Type: GrantFiled: January 13, 1997Date of Patent: November 17, 1998Assignees: Toppan Printing Co., Inc., Mitsubishi Denki Kabushiki KaishaInventors: Niro Watanabe, Yuji Nakatsu, Keiki Yamada, Masaru Ohnishi
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Patent number: 5672559Abstract: A reversible thermal recording medium having a core material capable of being change in state by heat and a recording layer including capsules containing this core material. A repeatability corresponding to the limit of possible repeated recording/erasing effected by a physical or chemical change in the material constituting the recording can be obtained. A deterioration in image quality caused by transfer of a part of the recording layer to the heating unit can be prevented and repeat characteristics can be improved, thereby limiting the running cost.Type: GrantFiled: September 21, 1995Date of Patent: September 30, 1997Assignees: Toppan Printing Co., Ltd., Mitsubishi Denki Kabushiki KaishaInventors: Niro Watanabe, Yuji Nakatsu, Keiki Yamada, Masaru Ohnishi
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Patent number: 5658845Abstract: A reversible thermal recording medium having a core material capable of being change in state by heat and a recording layer including capsules containing this core material. A repeatability corresponding to the limit of possible repeated recording/erasing effected by a physical or chemical change in the material constituting the recording can be obtained. A deterioration in image quality caused by transfer of a part of the recording layer to the heating unit can be prevented and repeat characteristics can be improved, thereby limiting the running cost.Type: GrantFiled: June 5, 1995Date of Patent: August 19, 1997Assignees: Toppan Printing Co., Ltd., Mitsubishi Denki Kabushiki KaishaInventors: Niro Watanabe, Yuji Nakatsu, Keiki Yamada, Masaru Ohnishi
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Patent number: 5637551Abstract: A reversible thermal recording medium having a core material capable of being change in state by heat and a recording layer including capsules containing this core material. A repeatability corresponding to the limit of possible repeated recording/erasing effected by a physical or chemical change in the material constituting the recording can be obtained. A deterioration in image quality caused by transfer of a part of the recording layer to the heating unit can be prevented and repeat characteristics can be improved, thereby limiting the running cost.Type: GrantFiled: September 17, 1996Date of Patent: June 10, 1997Assignees: Toppan Printing Co., Ltd., Mitsubishi Denki Kabushiki KaishaInventors: Niro Watanabe, Yuji Nakatsu, Keiki Yamada, Masaru Ohnishi
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Intermediate transfer medium and process for producing image-recorded article making use of the same
Patent number: 5344808Abstract: An intermediate transfer medium comprises a heat-resistant base sheet and provided thereon a release layer and an image-receiving adhesive layer on which an image pattern is formed by a sublimation transfer means in accordance with image data, said image-receiving adhesive layer, on which said image pattern has been formed, being transferred to a transfer substrate together with said release layer to produce an image-recorded article, wherein said image-receiving adhesive layer is comprised of a thermoplastic resin having a glass transition point of 50.degree. C. or above and a filler added to the thermoplastic resin and selected from the group consisting of an inorganic filler having a melting point of 200.degree. C. or above and an organic filler having a softening point or decomposition point of 200.degree. C. or above.Type: GrantFiled: August 25, 1993Date of Patent: September 6, 1994Assignee: Toppan Printing Co., Ltd.Inventors: Niro Watanabe, Tatsuya Morimitsu, Kazuhisa Hoshino, Akihiko Kobayashi, Kiyoshi Horie, Naoaki Shindo, Yoshiaki Tada, Takashi Sato -
Patent number: 5278129Abstract: A rewritable thermosensitive recording medium having a recording layer, the transparency of which reversibly changes depending on the temperature thereof. Further, the recording layer contains a matrix material and an organic low-molecular-weight material dispersed in the matrix material as main components thereof. Moreover, an alicyclic dicarboxylic acid compound is added to the organic low-molecular-weight material dispersed in the matrix material. Furthermore, by adding the alicyclic dicarboxylic acid compound to the organic low-molecular-weight material, the eutectic point of the organic low-molecular-weight material and the alicyclic dicarboxylic acid compound becomes higher than the melting point of the organic low-molecular-weight material.Type: GrantFiled: November 6, 1992Date of Patent: January 11, 1994Assignee: Toppan Printing Co., Ltd.Inventors: Niro Watanabe, Atsushi Kijima, Yuji Nakatsu, Susumu Watanabe
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Patent number: 5231505Abstract: A rewritable recording/display apparatus using a rewritable recording medium in which color development reaction occurs by thermal energy at a predetermined temperature, and in which a color extinguishing reaction occurs by thermal energy at a temperature lower than the color development temperature, and which is capable of repeatingly performing recording and erasing of images. The apparatus also has a color developing heating device for recording an image on the rewritable recording medium by heating the rewritable recording medium, and an erasing heating device for erasing the image after the image has been recorded. Thus, the apparatus is designed so as to have a recording section simplified and reduced in size, and to reduce the maintenance and running cost. A method of erasing a rewritable record enables images to be erased completely or suitably in terms of practice and enables formation of high-quality image after erasing of the previous image.Type: GrantFiled: June 14, 1991Date of Patent: July 27, 1993Assignees: Mitsubishi Denki K.K., Toppan Printing Co., Ltd.Inventors: Niro Watanabe, Yoshihiro Hino, Masashi Tamura, Masaru Ohnishi, Keiki Yamada, Takashi Hiroishi, Narihiro Matoba
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Patent number: 5178669Abstract: A composition for reversible thermal recording media which contains an amphoteric compound having at least one of a phenolic hydroxyl group and a carboxyl group and also having an amino group either as a functional group or as part of a salt compound, and a leuco compound.Type: GrantFiled: January 31, 1991Date of Patent: January 12, 1993Assignee: Toppan Printing Co., Ltd.Inventors: Niro Watanabe, Toyoko Shimizu, Yoshihiro Hino
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Patent number: 5064807Abstract: A coloring agent carrying medium comprises a heat-resistant flexible substrate having a front surface, a plurality of transfer ink films formed on the front surface of the heat-resistant substrate at spacings and containing a pigment transferred to a recording medium upon application of heat, and a plurality of sublimation ink films formed on the front surface of the heat-resistant substrate between the transfer ink films and containing dyestuffs and at least one binder mainly composed of a crosslinked product of polyvinyl alcohol, and the binder allows the dyestuffs to penetrate into the recording medium without leaving from the heat-resistant flexible substrate.Type: GrantFiled: August 22, 1990Date of Patent: November 12, 1991Assignee: Toppan Printing Co., Ltd.Inventors: Masato Yoshida, Niro Watanabe
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Patent number: 5019452Abstract: Thermal transfer material which is adopted for use in transferring an image of high resistances to wear, water and chemicals on a plastic base such as pre-paid card, coupon card and the like. The thermal transfer material comprises a heat-resistant support and a thermal transfer recording layer stacked on the support. The thermal transfer recording layer comprises a coloring agent, a hot-melt material comprising a thermoplastic resin having a glass transition point of 50 to 110.degree. C., and a lubricant. There is also proposed a recording material adopted for use in combination with the thermal transfer material. The recording material comprises a support and an image-receiving layer formed on the support and comprising a lubricating agent and a thermoplastic resin having a glass transition point of 50.degree. to 110.degree. C. A method of transfer-recording using the thermal transfer material and the recording material is also proposed.Type: GrantFiled: June 6, 1990Date of Patent: May 28, 1991Assignee: Toppan Printing Co., Ltd.Inventors: Niro Watanabe, Masato Yoshida, Noriyuki Ito
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Patent number: 4487826Abstract: A diazotype heat development recording medium of the present invention has excellent shelf life and heat sensitivity. The medium comprises a support and a recording layer which is formed on said support and which comprises a diazo compound, a coupler, an acid stabilizer, a thermal developer, and a polymeric binder. The thermal developer is a salt of an organic or inorganic acid having a primary dissociation constant of 2.times.10.sup.-1 to 1.times.10.sup.-4 and an alkyl-substituted guanidine represented by the general formula: ##STR1## (wherein at least one of R1 and R2 is an alkyl group of C.sub.8 to C.sub.24, and the other of R1 and R2 is a hydrogen atom or an alkyl group of C.sub.1 or more).Type: GrantFiled: January 17, 1983Date of Patent: December 11, 1984Assignee: Toppan Printing Co., Ltd.Inventors: Niro Watanabe, Shiro Nemoto, Hiroyuki Yasujima, Kaneki Yoshida