Patents by Inventor Akihiro Imai
Akihiro Imai 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: 5583227Abstract: This invention relates to a novel compound which is useful as a drug in preventing and/or treating peptic ulcer-related diseases, to a production process thereof and to a pharmaceutical composition containing the same.Particularly, it provides a compound which has a specified substituted alkynylpyrazine nucleus or a specified substituted alkynylquinoxaline nucleus, represented by the following formula (I) ##STR1## wherein A is represented by the following formula (II) or (III) ##STR2## and R.sup.1 is represented by the following formula (IV), ##STR3## and the salts thereof, a production process thereof and a pharmaceutical composition containing the same.The inventive compound is useful as a drug in preventing and/or treating peptic ulcer-related diseases.Type: GrantFiled: June 2, 1995Date of Patent: December 10, 1996Assignees: Mochida Pharmaceutical Co. Ltd., Hodogaya Chemical Co. Ltd.Inventors: Takeshi Niho, Ichiro Yamamoto, Hidenori Mochizuki, Ikuo Kimura, Akihiro Imai, Tetsuyuki Nakase
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Patent number: 5571766Abstract: The present invention enables to print the image of high picture quality on an ordinary paper or other arbitrary substrate for sublimation thermal transfer printing by the thermal transfer printing method, wherein using the combination of a transfer printing member with a coloring material layer on the substrate A, intermediate medium with dye-receiving layer on the substrate B and an image receiving member.Type: GrantFiled: June 5, 1995Date of Patent: November 5, 1996Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akihiro Imai, Hiroyuki Matsuo, Yasuo Fukui, Nobuyoshi Taguchi
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Patent number: 5545605Abstract: A thermal transfer printing method, in a combination of a transfer medium including a support on which at least a dyeing layer and a dye anti-diffusion layer (and a protecting layer) are provided separately from color layers, an intermediate medium, and an image-receiving medium, comprising steps of: transferring at least the dye anti-diffusion layer and the dyeing layer (and the protecting layer) onto the intermediate medium, thereby forming a sequential laminate on the intermediate medium; printing a thermal transfer image in the dyeing layer of the laminate formed on the intermediate medium; and transferring the laminate carrying the thermal transfer image thereon from the intermediate medium onto the image-receiving medium (and fixing it simultaneously, or after transferring), thereby finally forming a print image on the image-receiving medium.Type: GrantFiled: November 21, 1994Date of Patent: August 13, 1996Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akihiro Imai, Yasuo Fukui, Hiroyuki Matsuo
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Patent number: 5538933Abstract: A thermal transfer printing method which employs a dyeing layer transfer member having at least a dyeing layer on a base material, an ink transfer member having at least an ink layer containing a subliming dye on a base material, recording intermediate member having at least a base material, and an image-receptor. The thermal transfer printing method includes the steps of thermally transferring the dyeing layer of the dyeing layer transfer member onto the recording intermediate member, thermally transferring and recording ink of the ink transfer member onto the transferred dyeing layer according to image signals, and further thermally transferring the recorded dyeing layer onto the image-receptor. The disclosure also relates to printing media employed for effecting the method. The method may be rearranged to preliminarily form the dyeing layer on the recording intermediate member, and in this case, the dyeing layer transfer member and the process for its thermal transfer may be dispensed with.Type: GrantFiled: December 1, 1993Date of Patent: July 23, 1996Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Nobuyoshi Taguchi, Akihiro Imai, Yasuo Fukui
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Patent number: 5447902Abstract: The present invention provides a thermal printing method using a sublimable dye, which is capable of faithfully printing on any kind of substrates, including plain paper without the tack sheets which make the process complicated. The method of the present invention comprises forming an image into a printing layer by heating a color layer with a printing head and then transferring the printing layer onto an image receive sheet by pressure or heat; wherein the color layer and printing layer are respectively formed on one substrate in a certain interval of distance without putting one upon another, the surface of the color layer is placed on the surface of the printing layer and heat is applied to the color layer from the substrate side with a printing head to form an image into a printing layer.Type: GrantFiled: October 13, 1993Date of Patent: September 5, 1995Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akihiro Imai, Yasuo Fukui, Nobuyoshi Taguchi
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Patent number: 5448282Abstract: A process for thermal transfer printing method including the steps of forming a thermal transfer image in a dyeing layer of an intermediate sheet using a coloring layer of a transfer sheet and transferring the dyeing layer carrying the formed image from the intermediate sheet to an image receptor with a medium for applying heat and/or pressure, in which the medium is also used for fixing the transferred dyeing layer on the image receptor, and an thermal transfer printing apparatus having means for feeding an elongate intermediate sheet having a dyeing layer, means for cutting the elongate intermediate sheet, printing means for forming a thermal transfer image in the dyeing layer of intermediate sheet, and means for transferring the dyeing layer carrying the formed thermal transfer image to an image receptor, by which the printed image with low gloss is formed on the image receptor at a high printing speed.Type: GrantFiled: July 23, 1993Date of Patent: September 5, 1995Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akihiro Imai, Hiroyuki Matsuo, Yasuo Fukui, Nobuyoshi Taguchi
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Patent number: 5444037Abstract: The present invention enables to print the image of high picture quality on an ordinary paper or other arbitrary substrate for sublimation thermal transfer printing by the thermal transfer printing method, wherein using the combination of a transfer printing member with a coloring material layer on the substrate A, intermediate medium with dye-receiving layer on the substrate B and an image receiving member.Type: GrantFiled: December 28, 1992Date of Patent: August 22, 1995Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akihiro Imai, Hiroyuki Matsuo, Yasuo Fukui, Nobuyoshi Taguchi
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Patent number: 5438348Abstract: The present invention is directed to a thermal transfer printing process comprising:heating a thermal ink film with a printing head to print dye transferring images onto an intermediate sheet which comprises a substrate and a printing layer thereon,heaping an image receive sheet on said printing layer, andtransferring said printing layer onto the image receive sheet by pressure or heat;an improvement residing in that said printing layer is formed from polyvinyl acetal.The present invention also provides an intermediate sheet for the above thermal transfer printing process comprising a substrate and a printing layer on said substrate wherein said printing layer is formed from polyvinyl acetal.Type: GrantFiled: May 4, 1994Date of Patent: August 1, 1995Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akihiro Imai, Yasuo Fukui, Nobuyoshi Taguchi
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Patent number: 5398051Abstract: A thermal transfer recording method for recording, in which an intermediate transfer member having a recording layer formed on a polymeric layer is used in such a way that the intermediate transfer member and an ink sheet is placed one over the other, dye being thermally transferred from an ink material layer of the ink sheet to the recording layer. The intermediate transfer member and an image receiving medium are placed one over the other, and they are subjected to pressure and heat so that the recording layer is transferred from the intermediate transfer member onto the image receiving medium.Type: GrantFiled: April 22, 1993Date of Patent: March 14, 1995Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yasuo Fukui, Soichirou Mima, Hiroyuki Matsuo, Akihiro Imai, Nobuyoshi Taguchi
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Patent number: 5342818Abstract: The present invention provides a thermal transfer printing method, an intermediate medium and a transfer medium therefor, which make it possible to obtain printed image having deep color and high light resistance without back diffusion of dye.The method of the present invention comprises:transferring each color image by a printing head from a transfer medium A onto an intermediate medium wherein said transfer medium A has at least one color ink block consisting of color ink layers each of which contains different color ink, said intermediate medium has image receiving layers, whereby each image receiving layer on the intermediate medium contains one color image, andtransferring each color image receiving layer onto an imaging sheet from the intermediate medium, so that a same image receive portion of the imaging sheet contains the image receiving layers corresponding to one color ink block.Type: GrantFiled: September 18, 1992Date of Patent: August 30, 1994Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akihiro Imai, Hiroyuki Matsuo, Yasuo Fukui, Soichiro Mima, Nobuyoshi Taguchi
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Patent number: 5334574Abstract: Thermal dye transfer printing systems which are adapted For multiple-use printing modes wherein one dye transfer sheet is repeatedly used and which comprise a dye transfer sheet having, on a substrate, a dye transfer layer containing a sublimable dye and a binder resin and a dye receiving sheet having a dye receiving layer which has a diffusion rate of the dye smaller than the dye transfer layer. This is effective in suppressing a lowering of printing density owing to the increase in number of printing cycles using one dye transfer sheet. Alternatively, the dye transfer sheet is constituted such that the dye transfer layer is made of a plurality of sub-layers in which the concentration of the dye decreases from the sub-layer formed directly on the substrate toward the surface side of the dye transfer layer. The dye is invariably supplied from the higher concentration sub-layers to ensure full color printing with a remarkably increasing number of multiple-use printing cycles.Type: GrantFiled: June 29, 1992Date of Patent: August 2, 1994Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiromu Matsuda, Tetsuji Kawakami, Keiichi Yubakami, Akihiro Imai, Nobuyoshi Taguchi
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Patent number: 5332459Abstract: The present invention is directed to a thermal transfer printing process comprising:heating a thermal ink film with a printing head to print dye transferring images onto an intermediate sheet which comprises a substrate and a printing layer thereon,heaping an image receive sheet on said printing layer, andtransferring said printing layer onto an image receive sheet by pressure or heat;The improvement residing in that said printing layer is formed from polyvinyl acetal.The present invention also provides an intermediate sheet for the above thermal transfer printing process comprising a substrate and a printing layer on said substrate wherein said printing layer is formed from polyvinyl acetal.Type: GrantFiled: July 3, 1991Date of Patent: July 26, 1994Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akihiro Imai, Yasuo Fukui, Nobuyoshi Taguchi
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Patent number: 5292714Abstract: A dye transfer thermal printing sheet which can give a color record image excellent in color reproducibility and weather resistance with middle shade including black and sufficiently saturated density. This printing sheet includes a substrate on which are arranged, in face-sequence, coloring material layers which are different in hue and contain at least one dye represented by the formula (I), at least one dye represented by the formula (II) and at least one dye represented by the formula (III).Type: GrantFiled: February 10, 1993Date of Patent: March 8, 1994Assignees: Matsushita Electric Industrial Co., Ltd., Mitsubishi Kasei CorporationInventors: Tetsuji Kawakami, Akihiro Imai, Nobuyoshi Taguchi, Yukichi Murata, Takao Hirota
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Patent number: 5284814Abstract: A thermal transfer printing method which employs a dyeing layer transfer member having at least a dyeing layer on a base material, an ink transfer member having at least an ink layer containing a subliming dye on a base material, recording intermediate member having at least a base material, and an image-receptor. The thermal transfer printing method includes the steps of thermally transferring the dyeing layer of the dyeing layer transfer member onto the recording intermediate member, thermally transferring and recording ink of the ink transfer member onto the transferred dyeing layer according to image signals, and further thermally transferring the recorded dyeing layer onto the image-receptor. The disclosure also relates to printing media employed for effecting the method. It may be so arranged to preliminarily form the dyeing layer on the recording intermediate member, and in this case, the dyeing layer transfer member and the process for its thermal transfer may be dispensed with.Type: GrantFiled: October 2, 1991Date of Patent: February 8, 1994Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Nobuyoshi Taguchi, Akihiro Imai, Yasuo Fukui
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Patent number: 5281976Abstract: The present invention provides a thermal printing method using a sublimable dye, which is capable of faithfully printing on any kind of substrates, including plain paper without the tack sheets which make the process complicated. The method of the present invention comprises forming an image into a printing layer by heating a color layer with a printing head and then transferring the printing layer onto an image receive sheet by pressure or heat; wherein the color layer and printing layer are respectively formed on one substrate in a certain interval of distance without putting one upon another, the surface of the color layer is placed on the surface of the printing layer and heat is applied to the color layer from the substrate side with a printing head to form an image into a printing layer.Type: GrantFiled: August 13, 1991Date of Patent: January 25, 1994Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akihiro Imai, Yasuo Fukui, Nobuyoshi Taguchi
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Patent number: 5217941Abstract: The present invention provides a dye transfer type thermal printing sheet which can give a color record image excellent in color reproducibility and weather resistance with middle shade including black and sufficiently saturated density. This printing sheet comprising a substrate on which are arranged, in face-sequence, coloring material layers which are different in hue and contain either of at least one dye represented by the formula (I), at least one dye represented by the formula (II) and at least one dye represented by the formulas (III)-(VI).Type: GrantFiled: October 10, 1990Date of Patent: June 8, 1993Assignees: Matsushita Electric Industrial Co., Ltd., Mitsubishi Kasei CorporationInventors: Tetsuji Kawakami, Akihiro Imai, Nobuyoshi Taguchi, Yukichi Murata, Takao Hirota
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Patent number: 5145827Abstract: It can be obtained a receiving sheet for a dye transfer type thermal printing which is improved in a curing speed, image reliability, recording sensitivity, and dot reproducibility, and useful for high speed and/or relative-speeds printing by arranging a polymer layer on a substrate and then a cured resin layer of a moisture-curable resin on the polymer layer.Type: GrantFiled: June 12, 1990Date of Patent: September 8, 1992Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akihiro Imai, Tetsuji Kawakami, Hiromu Matsuda, Keiichi Yubakami, Nobuyoshi Taguchi
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Patent number: 5146237Abstract: A method of resistive sheet transfer recording is disclosed, in which the thermal diffusion coefficient of a resistive sheet (1) in the range of 1 to 100.times.10.sup.-6 m.sup.2 /s is combined with that of an electrode head (2) in the range of 0.1 to 50.times.10.sup.6 m.sup.2 /s, thereby making it possible to form a high-quality image at high sensitivity and high speed.Type: GrantFiled: January 11, 1990Date of Patent: September 8, 1992Assignee: Matushita Electric Industrial Co., Ltd.Inventors: Nobuyoshi Taguchi, Akihiro Imai, Hiromu Matsuda, Tetsuji Kawakami, Keiichi Yubakami
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Patent number: 5137865Abstract: Thermal dye transfer printing systems which are adapted for multiple-use printing modes wherein one dye transfer sheet is repeatedly used and which comprise a dye transfer sheet having, on a substrate, a dye transfer layer containing a sublimable dye and a binder resin and a dye receiving sheet having a dye receiving layer which has a diffusion rate of the dye smaller than the dye transfer layer. This is effective in suppressing a lowering of printing density owing to the increase in number of printing cycles using one dye transfer sheet. Alternatively, the dye transfer sheet is constituted such that the dye transfer layer is made of a plurality of sub-layers in which the concentration of the dye decreases from the sub-layer formed directly on the substrate toward the surface side of the dye transfer layer. The dye is invariably supplied from the higher concentration sub-layers to ensure full color printing with a remarkably increasing number of multiple-use printing cycles.Type: GrantFiled: March 3, 1989Date of Patent: August 11, 1992Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiromu Matsuda, Tetsuji Kawakami, Keiichi Yubakami, Akihiro Imai, Nobuyoshi Taguchi
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Patent number: RE35349Abstract: The present invention relates to a method of resistive sheet transfer recording using a recording member and an electrode head comprising oppositely aligned electrode pair trains embedded in the insulating support member and also relates to an electrode head use therefor, wherein abrasive wear of the electrode pair by sliding contact of the recording member is optimized in a manner that the resistive sheet usually contacts to a fresh surface of the electrode pair train.The present invention makes it possible to give a high quality image with high recording speed and high sensitivity.Type: GrantFiled: May 20, 1993Date of Patent: October 8, 1996Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Nobuyoshi Taguchi, Yasuo Fukui, Akihiro Imai