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公开(公告)号：JPH08156437A
公开(公告)日：1996-06-18
申请号：JP29993394
申请日：1994-12-02
Applicant: TSUTSUNAKA PLASTIC KOGYO , SONY CORP
Inventor： AMI HIDEYUKI , MAJIMA OSAMU
Abstract: PURPOSE: To obtain a printing plate material excellent in both durability and recycling properties. CONSTITUTION: A printing machine plate is made of a plate material consisting of a resin composition, which is prepared by mixing carbon black and a heat decomposable substance with the resin component prepared by mixing an acrylic resin with an impact modifier mainly made of an acrylic rubber under the condition that the mixing ratio of the resin component is 50-160 pt.wt. impact modifier to 100 pt.wt. acrylic resin and the mixing ratio of the resin composition is 5-25 pt.wt. carbon black and 1-10 pt.wt. heat decomposable substance to 100 pt.wt. resin component. Further, as the carbon black, furnace black or minute particle having a primary average particle diameter of 50nm or less is preferable. Furthermore, as the heat decomposable substance, one, which decomposes is the temperature range of 170-500 deg.C, is preferable. As the acrylic resin, one having a weight average molecular weight of 70,000-300,000, is preferable.
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公开(公告)号：JPH0848019A
公开(公告)日：1996-02-20
申请号：JP23283695
申请日：1995-09-11
Applicant: SONY CORP
Inventor： MAJIMA OSAMU , KOBAYASHI KAZUO , KUWABARA SOICHI
Abstract: PURPOSE:To obtain a plate material for plate making suitable for high-grade printing of a medium number of sheets and utilizable by an individual or in an office. CONSTITUTION:In a plate material for plate making, a plate material 6a composed of a synthetic resin sheet is wound around a cylindrical member 17 to be rotated and irradiated with laser beam from a laser irradiation means 24 to form recessed parts 15 having the depths and/or areas corresponding to the variable density of input image data to simply obtain a plate cylinder.
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公开(公告)号：JPH0584489B2
公开(公告)日：1993-12-02
申请号：JP9280285
申请日：1985-04-30
Applicant: SONY CORP
Inventor： MAJIMA OSAMU , KOBAYASHI KAZUO , MISAO IKUO
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公开(公告)号：JPH05246165A
公开(公告)日：1993-09-24
申请号：JP8483692
申请日：1992-03-06
Applicant: SONY CORP
Inventor： BENNO HIROSHI , MAJIMA OSAMU
Abstract: PURPOSE:To enhance the quality of printed matter by providing an intaglio printing plate material excellent in gradation reproducibility or the reproducibility of the image of a highlight part. CONSTITUTION:A hydrophilic substance 12 is contained in a hydrophobic sheetlike base material 1. For example, a light absorbing material covered with a hydrophilic film or an oleophilic substance covered with a light absorbing film is contained in the hydrophobic sheetlike base material. Or, a hydrophobic layer is formed on the upper surface of a sheetlike base material at least of which the upper layer is hydrophilic or an oleophilic substance or a light absorbing material covered with an oleophilic film or the oleophilic substance covered with a light absorbing film is contained in a sheetlike base material having a property repelling an oily solution or an oleophobic layer having a property repelling an oily solution is formed on the upper surface of a sheetlike base material at least of which the upper layer is oleophilic.
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公开(公告)号：JPS61256329A
公开(公告)日：1986-11-13
申请号：JP9896585
申请日：1985-05-10
Applicant: SONY CORP
Inventor： MAJIMA OSAMU , MISAO IKUO
Abstract: PURPOSE:To obtain an image which has no irregularity in density and correct gradations by detecting the density of a picture element written in a liquid crystal cell and feeding its detection signal back to a writing system. CONSTITUTION:The density of the picture element written in the liquid crystal cell is detected and the detection signal of it is fed back to the writing system to represent gradations of an image. For example, when density at points Pa-Pc is denoted as Ci, preliminary writing is performed according to a curved line 1A, so main writing is performed with a pulse Pw of Tw=0 at the point Pa, with a pulse of Tw=Tb at the point Pb in consideration of the error between curved lines 1A and 1B, and with a pulse Pw of Tw=Tc at the point Pc in consideration of an error between curved lines 1A and 1C. Therefore, the writing becomes equivalent to writing based upon the respective curves 1A-1C at the points Pa-Pc and other points are the same.
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Patent Agency Ranking
公开(公告)号：JPS5818283A
公开(公告)日：1983-02-02
申请号：JP11588481
申请日：1981-07-25
Applicant: SONY CORP
Inventor： MAJIMA OSAMU
Abstract: PURPOSE:To fix a recording image without causing any ink staining by a method in which a power source to generate an electric field is connected between a heat roller and a metal roller and dye present in an ink is polarized by heating and sublimed by the heat roller and diffused along the line of electric force. CONSTITUTION:A metal roller 14 is moved in the direction of arrow B, a heat roller 13 heated by a heating means inside is rotationally moved in the direction of arrow C, and a printing paper 4 is run in the direction of arrow A. On the other hand, the line of electric force is generated between both the rollers 13 and 14 by a power source 15, and then the printing paper 4 is heated by the heat roller 13 and the dispersion dye of the image 16A is sublimated or vaporized and polarized. The polarized dye vapor is diffused acceleratedly along the line of electric force and fixed in the form of the image 16B with lesser ink staining.
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公开(公告)号：JPS5669185A
公开(公告)日：1981-06-10
申请号：JP14568379
申请日：1979-11-09
Applicant: SONY CORP
Inventor： MAJIMA OSAMU , HONDA SHIGEMICHI
Abstract: PURPOSE:To simplify the structure of a copying medium, make possible multi- color copying and obtain higher definition by a method wherein heat-sublimating dyes in the copying medium is sublimated according to image element information by means of the local generation of heat when electricity is being applied, before being attached to a copying body. CONSTITUTION:A copying medium 13 in such a state that solid dyes 11 are being attached to a belt 6 is transferred to the portion between recording paper 1 and a needle recording electrode 14. If a current flows in this state between the recording elecrrode 14 and an opposite electrode 15 according to image element information 17, the end portion of the recording electrode 14 of the copying medium 13 locally generates heat due to the Joule heat effect, sublimating the dyes 11 in that portion from a solid to liquid. Since a temperature inclination occurs in the direction of low temperatures starting from the recording electrode 14 up to a platen 3 via the copying medium 13 and the recording paper 1, the liquefied dye 11 is cooled on the surface of the recording paper 1, before being attached to the recording paper 1 as they are returned to a solid. As a result, a dyeing point is formed by the dyes 11 as the tip of the needle recording electrode 13 moves.
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公开(公告)号：JPH0760936A
公开(公告)日：1995-03-07
申请号：JP21583793
申请日：1993-08-31
Inventor： MAEHARA TAKEMASA , MAJIMA OSAMU , HIRASHIMA SHIGEYOSHI
Abstract: PURPOSE:To obtain a photogravure printing press protecting a plastic gravure plate from a flaw and less susceptible to quality changes by placing an impression cylinder of a specific unit, and an impression cylinder and a transfer cylinder of an upper unit so that transfer may be made at the nearest contact point between the impression cylinder and the transfer cylinder of the upper unit. CONSTITUTION:Impression cylinders 11, 21, transfer cylinder 2, and a gripper 4 are placed in such a manner that allows printing paper transferred at the mearest contact point P1 between the impression cylinder 11 and the transfer cylinder 2 of Unit 1, at the transfer cylinder 2 between the impression cylinder 11 of Unit 1 and the impression cylinder 21 of Unit 2, to be transferred at the nearest contact point P2 between a cylinder 21 of Unit 2 and a transfer cylinder 2 of Unit 2 by the rotation of the transfer cylinder 2. If it is assumed that the transfer cylinder 2 and the impression cylinders 11, 12 have an equal diameter and that angle P1 O P2 formed at the three points: the nearest contact point P1, the shaft center of the transfer cylinder 2, O, and the nearest contact point P2, is theta, theta=180 deg. must be valid.
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公开(公告)号：JPH01216893A
公开(公告)日：1989-08-30
申请号：JP4336188
申请日：1988-02-26
Applicant: SONY CORP
Inventor： KAKINUMA KOICHIRO , MAJIMA OSAMU , ANDO MASATO
Abstract: PURPOSE:To obtain an electrostatic recording medium capable of favorable indication through writing of a manuscript, by providing a conductive layer on a sheet-shaped base, providing a dielectric layer on the conductive layer, and making the base or the conductive layer white in color. CONSTITUTION:An electrostatic recording medium comprises a sheet-shaped base 21, a conductive layer 23 provided on the base 21, and a dielectric layer 25 provided on the conductive layer 23. In the electrostatic recording layer, the base 21 or the conductive layer 23 is made to be white in color. With the base 21 or the conductive layer 23 in the recording medium being white, the dielectric layer 23 can be transparent. For example, the dielectric layer 25 is formed from polyvinylidene fluoride, whereby the dielectric layer 25 can be provided with favorable characteristics, and favorable indication through writing of a manuscript can be performed.
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公开(公告)号：JPH0126353B2
公开(公告)日：1989-05-23
申请号：JP16281980
申请日：1980-11-19
Applicant: SONY CORP
Inventor： MAJIMA OSAMU
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