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公开(公告)号：JPS62167089A
公开(公告)日：1987-07-23
申请号：JP946186
申请日：1986-01-20
Applicant: SONY CORP
Inventor： TOMIMURO HIROSHI , ISHIMOTO HIKARI , SETO NOBUYOSHI
Abstract: PURPOSE:To make it possible to repeatedly perform recording and erasure, in a laser recording medium having a recording layer obtained by forming org. coloring matter into a built-up film of a J-association band along with a film forming substance, by forming the built-up film using a specific compound as the film forming substance. CONSTITUTION:A cyanine dye represented by formula I, dioctadecyldimethylammonium chloride (DODAC) and methyl stearate (StME) are dissolved in a solvent mixture of chloroform/methanol to prepare a solution adjusted so that the combined concn. of DODAC and StME is 1mg/ml and 25 monomolecular films are built up on a glass substrate 1 having an aluminum reflecting film 2 using said solution according to a LB method to form a recording layer 3 and a recording medium sample is obtained. This sample is irradiated with flash light from the side of the recording layer 2 and instantaneously heated to perform recording. Next, the sample irradiated with flash light is allowed to stand for 24hr under such a condition that temp. is 30 deg.C and humidity is about 100% RH to perform erasure.
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公开(公告)号：JPS62167088A
公开(公告)日：1987-07-23
申请号：JP946086
申请日：1986-01-20
Applicant: SONY CORP
Inventor： ISHIMOTO HIKARI , SETO NOBUYOSHI , TOMIMURO HIROSHI
Abstract: PURPOSE:To increase the recording density of information by performing multiple recording to the same area, by constituting a laser recording medium by superposing a plurality of ultrathin built-up film recording layers respectively containing org. coloring matters having absorption peaks in different wavelength regions by a LB method. CONSTITUTION:An aluminum reflecting film 2 is provided to a glass substrate 1 by vapor deposition and recording layers are formed in the order of a first recording layer 3 and a second recording layer 4 by LB method to obtain a high density recording medium sample. A cyanine dye represented by formula I, dioctadecyldimethylammonium chloride (DODAC) and methyl stearate (StME) are dissolved in chloroform/methanol to prepare a solution adjusted so that the combined concn. of DODAC and StME is 1mg/ml and 25 monomolecular film are built up according to the LB method using said solution to form a first recording layer 3 having an absorption peak at about 780nm. A cyanine dye represented by formula II and arachic acid are dissolved to prepare a solution adjusted so that the concn. of arachic acid is 1mg/ml and 6 monomolecular films are built up according to the LB method using said solution to form a second recording layer 4 having an absorption peak at about 670nm.
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公开(公告)号：JPS62164591A
公开(公告)日：1987-07-21
申请号：JP738586
申请日：1986-01-17
Applicant: SONY CORP
Inventor： ASAI NOBUTOSHI , TAMURA SHINICHIRO , ARAKAWA SEIICHI , SETO NOBUYOSHI
Abstract: PURPOSE:To write a plurality of informations in each memory pit, by forming an optical recording layer form two or more kinds of spiropirane substances having different absorption wavelengths and performing recording and/or reproduction by laser beams corresponding to said absorption wavelengths. CONSTITUTION:An optical recording layer consisting of two or more kinds of spiropirane substances having different absorption wavelengths is provided on a substrate to form an optical recording medium and recording and/or reproduction is performed by laser beams corresponding to respective absorption wavelengths. Concretely, 30pts.wt. of benzopirane type spiropirane and 50pts.wt. of benzothiopirane type spiropirane are dispersed in 100pts.wt. of a vinyl chloride/vinylidene chloride compolymer and the resulting composition is dissolved in a solvent to prepare a solvent solution which is, in turn, applied to a glass substrate to obtain an optical recording medium having an optical recording layer 2 with a thickness of 1mum formed thereto.
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公开(公告)号：JPS60262884A
公开(公告)日：1985-12-26
申请号：JP11969784
申请日：1984-06-11
Applicant: SONY CORP
Inventor： TAMURA SHINICHIROU , SETO NOBUYOSHI
IPC: C09K9/02
Abstract: PURPOSE:The titled photosensitive material improved in shelf stability in colored form, comprising a polymeric material, a specified benzoindolinothiopyran-base spiropyran compd. and an antioxidant. CONSTITUTION:100pts.wt. polymeric material such as polymethyl methacrylate is compounded with 10-60pts.wt. benzoindolinothiopyran-base spriropyran compd. of the formula (wherein R1 is 1-20C alkyl; R2-R5 are each H, 1-5C alkyl; 1-5C alkoxy, halogen, nitro or dimethylamino; R6-8 are each H, 1-5C alkyl, 1-5C alkoxy or halogen) and 10-60pts.wt. 1,3,5-tris(4-t-butyl-3-hydroxy- 2,6-dimethyl benzyl) isocyanuric acid as an antioxidant, and the resulting compsn. is dissolved in a suitable solvent. The solution is applied to a substrate, such as a quartz glass substrate, to obtain a photochromic photosensitive material.
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公开(公告)号：JPS6031150A
公开(公告)日：1985-02-16
申请号：JP14015083
申请日：1983-07-30
Applicant: SONY CORP
Inventor： WATANABE HARUO , SETO NOBUYOSHI , SUZUKI SEISUKE , FUKUMA TOSHIAKI
Abstract: PURPOSE:To obtain image elements with high sensitivity through exposure in only once by scattering magenta, yellow, and cyan photoconductive toners sensitive to red, green, and bule lights, respectively, on a substrate, electrostatically charging these toners, exposing them to erase the charge, and finally removing the remaining charge-erased toner particles. CONSTITUTION:Colored photoconductive toners each having a high sensitivity wavelength region and a colored absorption wavelength region not overlapping with each other are used, and they are exposed to converted lights corresponding to electric color image signals to form an image. Magenta, yellow, and cyan colored photoconductive toners sensitive to red, green, and bule lights, respectively, are uniformly scattered on a substrate, these 3 kinds of toners are charged and exposed to erase said charge selectively, and the charge-erased toner particles are removed from the substrate. Said photoconductive toners are formed by adding a photosensitizer and a colorant to a photoconductor, such as S, Se, or Zn compd, and further adding a binder resin.
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Patent Agency Ranking
公开(公告)号：JPS59215382A
公开(公告)日：1984-12-05
申请号：JP8899583
申请日：1983-05-20
Applicant: Sony Corp
Inventor： KAWAKADO KOUICHI , ISHIMOTO HIKARI , SETO NOBUYOSHI
Abstract: PURPOSE: To provide a photosensitive material capable of producing multicolor images with high resolving power and excellent gradation, prepd. by forming at least two photosensitive layers having different degrees of wavelength absorption on a base material.
CONSTITUTION: The photosensitive material is prepd. by forming a photosensitive layer 2, a separating layer 4 (e.g. PVA resin layer) and a photosensitive layer 3 which develops a color different from that of the layer 2, on a base material 1 by the use of photochromic photosensitive materials which consist of combinations of a spiropyran compd. and a medium and develop a variety of colors [e.g. cyan color material obtd. by dispersing and dissolving 6-nitro-1'-3',3'-trimethylspiro[2H-1-benzopyran-2,2'-indoline] in polystyrene. magenta color material obtd. by dispersing and dissolving the above spiropyran in alkylphenol resin and yellow color material obtd. by dispersing and dissolving 1',3-dimethyl-6-nitrospiro {2H-1-benzopyran-2,2'-[2H]-pyridine} in cellulose acetate].
COPYRIGHT: (C)1984,JPO&JapioAbstract translation: 目的：提供能够生产具有高分辨能力和优异等级的多色图像的感光材料， 通过在基材上形成具有不同波长吸收程度的至少两个感光层。 构成：感光材料制成。 通过使用由组合物组成的光致变色感光材料在基材1上形成感光层2，分离层4（例如PVA树脂层）和形成与层2不同的颜色的感光层3 的spiropyran compd 和介质，并开发各种颜色[例如 青色色料 通过将6-硝基-1'-3'，3'-三甲基螺[2H-1-苯并吡喃-2,2'-二氢吲哚]分散并溶解在聚苯乙烯中。 品红色材料 通过将上述螺吡喃分散并溶解在烷基酚树脂和黄色材料中。 通过将1'，3-二甲基-6-硝基螺[2H-1-苯并吡喃-2,2' - [2H] - 吡啶}分散并溶解在乙酸纤维素中]。
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公开(公告)号：JPS5835728A
公开(公告)日：1983-03-02
申请号：JP13191581
申请日：1981-08-21
Applicant: SONY CORP
Inventor： NOGUCHI TSUTOMU , ARAKAWA SEIICHI , NAGAI TOORU , SETO NOBUYOSHI
IPC: C09D5/23 , C09D175/04 , C09D175/14 , G11B5/702
Abstract: PURPOSE:To improve adhesive property, wear resistance and solvent resistance, by using a 3-functional urethane acrylic resin as a binder component of electron ray curing type. CONSTITUTION:Trifunctional acrylic resin expressed in general formula (where; R is a lower alkyl group, R1-R3 are lower alkylene group, m is 0 or 1, n1-n3 are 1-8, and uA is diisocyanate acid radical), and a thermoplastic resin such as a urethane resin, polyvinyl resins, and cellulose derivatives are mixed in about 95/5-20/80 mixing ratio, magnetic powder is mixed to a binder having about 25-80 deg.C glass transition temperature to form a magnetic paint, which is coated on a base, and curing is done by irradiating electron rays of >= about 100keV.
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公开(公告)号：JPS57138110A
公开(公告)日：1982-08-26
申请号：JP2339181
申请日：1981-02-19
Applicant: SONY CORP
Inventor： KITAGAWA MASATAKA , WATANABE HARUO , NAKAMURA TOKIO , SETO NOBUYOSHI
Abstract: PURPOSE:To improve the rectangular ratio of magnetic recording medium manufactured by ferromagnetic powder largely by coating the ferromagnetic powder with a Co compound in an alkaline aqueous solution and treating the magnetic powder with a cation surface active agent. CONSTITUTION:The ferromagnetic powder is coated with the compound of Co ions or Co and Fe ions in the alkaline aqueous solution. When washing the Co compound layer, the magnetic powder is treated with the cation surface active agent, and dried. Consequently, the direct contact of the Co compound layer is prevented, and the cementation of the magnetic powder grains can be obviated. Accordingly, the rectangular ratio of the magnetic recording medium manufactured by the magnetic powder can be improved remarkably.
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公开(公告)号：JPS57131596A
公开(公告)日：1982-08-14
申请号：JP1844981
申请日：1981-02-10
Applicant: SONY CORP
Inventor： OGISU KENJI , SETO NOBUYOSHI
Abstract: PURPOSE:To provide a heat-sensitive recording medium made possible to preserve for a long period of time, wherein a data recording layer consisting of hydrated iron oxide powder, microcapsules each formed by encapsulating a reducer in a high-molecular material, and a binder is provided on a carrier, thereby to shut off the reducer from the outside air and the color changing material. CONSTITUTION:Powder of hydrated iron oxide (A) (e.g., alpha-,gamma-,delta-FeOOH or the like) as a color changing material, microcapsules (B) each formed by encapsulating a reducer (preferably, sodium thiosulfite or the like) in a high-molecular material, as a capsule material, preferably one which is stable to the reducer and the color changing material and has a small water and gas (oxygen or the like) transmission rate as well as is pyrolytically decomposed at the temperature during recording, e.g., a polyvinylidene chloride-containing polymer, and a binder (C) (e.g., an electron radiation curing type bromie-containing epoxy resin or the like) are applied on a carrier in the shape of film, tape or the like, together with a dispersant such as lecithin and a solvent such as toluene and hardened by means of the electron radiation to obtain the objective recording medium. EFFECT:Recording can be effected at a low temperatur and for a short period of time.
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公开(公告)号：JPS5786130A
公开(公告)日：1982-05-29
申请号：JP16030180
申请日：1980-11-14
Applicant: SONY CORP
Inventor： NAGAI TOORU , SETO NOBUYOSHI
Abstract: PURPOSE:To obtain a magnetic recording medium which has a magnetic layer having high cross-linking density, large modulus of elasticity, and excellent wear resistance, by utilizing cross-linking reaction by irradiating an acrrylic oligomer with an electron beam. CONSTITUTION:With a 100pts.wt. resin mixture consisting of 30-80pts.wt. vinyl chloride resin and 70-20pts.wt. rubber resin, a 10-200pts.wt. acrylic oligomer having >=3 functions, such as the reaction product of trimethylolpropane and 2-hydroxyethyl(meth)acrylate, the reaction product of pentaerythritol and 2- hydroxyethyl(meth)acrylate, and the reaction product of dipentaerythritol and 2-hydroxyethy(meth)acrylate, is mixed to obtain a binder. Magnetic paint which uses the said binder is applied to a base and irradiated with an electron beam, thus obtaining a magnetic recording medium of cross-linking structure by the cross-linking reaction of the acrylic oligomer.
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