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公开(公告)号：JPH11202336A
公开(公告)日：1999-07-30
申请号：JP298298
申请日：1998-01-09
Applicant: SONY CORP
Inventor： CHISAKI MAKOTO , KAWAKADO KOICHI
IPC: G02F1/1337 , C08J7/00
Abstract: PROBLEM TO BE SOLVED: To produce the high molecular alignment layer of satisfactory liquid crystal alignment property by enabling uniform treatment even in the case of oblique light radiation by irradiating an object to be irradiated with light into narrow pattern in the direction crossing a moving direction while moving the body to be irradiated relatively obliquely to the radiation direction of this light. SOLUTION: Emitted light 1A from a light source (mercury lamp) 1 is made into parallel light 1B by a collimator lens 2 or the like, passed through a polarizer 3 and converted into linearly polarized light 1C. Then, the polarized light 1C passed through the polarizer 3 is passed through a linear mask 4 having a slit-shaped aperture 10 in the breadthwise direction of an alignment layer 5 (namely in the direction orthogonal to its moving direction A) and only one part of polarized light 1C is passed. By using such a linear mask 4, an area B to be irradiated on a substrate 6 forming the oriented film 5 of polyimide or the like is limited into narrow pattern. The substrate 6 (high molecular alignment layer 5) to be irradiated with the polarized light 1C is moved upward obliquely on the drawing at fixed speed by a substrate moving device 7.
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公开(公告)号：JPH0896353A
公开(公告)日：1996-04-12
申请号：JP22784594
申请日：1994-09-22
Applicant: SONY CORP
Inventor： FUJIWARA ICHIRO , KAMEI TAKAHIRO , TANAKA KOICHI , KAWAKADO KOICHI
Abstract: PURPOSE: To reduce the coefft. of friction of a magnetic recording medium even in a severe environment by forming a mixed lubricant layer consisting of a coupling agent and a specified amine salt of fluoroalkylcarboxylic acid on a protective film on a magnetic layer. CONSTITUTION: When a ferromagnetic metallic film 2, a protective film 3 and a lubricant film 4 are laminated on a base film 1 to obtain a magnetic recording medium, a mixed lubricant layer consisting of a coupling agent and an amine salt of fluoroalkylcarboxylic acid represented by formula I, II or III is used as the film 4. The coefft. of friction of the magnetic recording medium can be reduced even in a severe environment such as an environment at a high temp. and humidity or at a low temp. and the objective magnetic recording medium having improved running performance, frictional resistance and durability over a long period of time is obtd.
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公开(公告)号：JPH0892749A
公开(公告)日：1996-04-09
申请号：JP22711994
申请日：1994-09-21
Applicant: SONY CORP
Inventor： WATABE KOJI , TANAKA NAOHIRO , SADAMOTO MIHO , KAWAKADO KOICHI
Abstract: PURPOSE: To provide a producing method of a ruthenium oxide thin film, which is capable of producing a single phase ruthenium oxide thin film with a low cost and simple method and producing the ruthenium oxide thin film excellent in electrical property. CONSTITUTION: A precursor sol solution is prepared by pulverizing a lumpy ruthenium chloride as a raw material to make powdery and dissolving in ethanol as a solvent and is passed through a filter having
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公开(公告)号：JPH07129951A
公开(公告)日：1995-05-19
申请号：JP27652193
申请日：1993-11-05
Applicant: SONY CORP
Inventor： FUJIWARA ICHIRO , KAMEI TAKAHIRO , TANAKA KOICHI , KAWAKADO KOICHI
Abstract: PURPOSE:To attain superior lubricity by a lubricant layer independently of service environment, to maintain its lubricating effect over a long period of time and to ensure satisfactory traveling performance, wear resistance and durability by forming a mixed lubricant layer having a prescribed structure on a protective layer. CONSTITUTION:A magnetic metallic thin film 2 of Co-Ni and a carbon protective layer 3 are successively formed on a PET film as a non-magnetic substrate 1 and a mixed lubricant consisting of partially fluorinated alkylcarboxylic acid represented by formula I and a titanate coupling agent represented by formula II is stuck as a lubricant layer 4 on the protective layer 3 to obtain the objective magnetic recording medium. The titanate coupling agent has superior lubricating action but this action is deteriorated under severe environment at high temp. and high humidity or low temp. and low humidity. The deterioration of the lubricating action of the coupling agent and the increase of the coefft. of friction are inhibited by mixing the coupling agent with the partially fluorinated alkylcarboxylic acid and satisfactory traveling performance, wear resistance and durability are ensured.
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公开(公告)号：JPH06138713A
公开(公告)日：1994-05-20
申请号：JP30966292
申请日：1992-10-23
Applicant: SONY CORP
Inventor： YAKURA YUJI , KAWAKADO KOICHI
IPC: G03G9/13
Abstract: PURPOSE:To improve the quality of the developer by using a compd. having a hydroxyl group as an essential component and a resin as a dispersion medium. CONSTITUTION:This developer wet process contains the dispersion medium, coloring agents, resin and charge imparting agent. The resin is copolymerized by using the compd. expressed by formula as an essential component in addition to components of an arom. group, alkyl group, oxyethylene group and acetoacetoxy group in its side chain so that the resin is soluble in the dispersion medium. In the formula, R, R', R'' are to 20C straight chain or branched alkyl group, arom. ring or straight chain or branched alkyl group having an ether group, ester group or arom. ring. The resin plays a surfactant-like role and the hydroxy group existing in the side chains is adsorbed on the surface of coloring agent particles of pigments, etc., by which the pigments, etc., are stably dispersed in the dispersion medium even in a high-temp. region.
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Patent Agency Ranking
公开(公告)号：JPH0619216A
公开(公告)日：1994-01-28
申请号：JP3260392
申请日：1992-01-22
Applicant: SONY CORP , SONY CHEMICALS
Inventor： YAKURA YUJI , MORI TAKAYOSHI , KAWAKADO KOICHI
IPC: G03G9/13
Abstract: PURPOSE:To obtain excellent resolution, gradation and dispersion stability by improving the stability of a wet developer for developing the electrostatic latent image. CONSTITUTION:This developer contains dospersing medium, colorant grain, resin and charge donating agent. A resin having an acetoacetoxyethyl group is used as the resin. This resin has -C(=O)-, takes in the metal ion of the charge donating agent due to its excellent chelating capacity and combines with the colorant grain to increase the charge amt.
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公开(公告)号：JPH0561267A
公开(公告)日：1993-03-12
申请号：JP24484991
申请日：1991-08-30
Applicant: SONY CORP
Inventor： YAKURA YUJI , KAWAKADO KOICHI
Abstract: PURPOSE:To enable development superior in resolution, gradation, and fixability by surface treating-colorant particles with a compound having a specified group and chemically combining this compound with a resin having functional groups reactive with this compound and oxyethylene groups. CONSTITUTION:The wet developer comprises a dispersing agent and the colorant particles 2 and an electric charge donor 4, and the particles 2 are surface treated with a compound having an isocyanate group and chemically combined with the resin 3 having the functional groups reactive with the isocyanate group, such as amino, carboxyl, hydroxyl or the like, and the oxyethylene groups. The functional groups of the resin 3 and the isocyanate groups introduced into the surfaces of the resin 2 are allowed to react to form the combined parts 1. Since this combination is very strong and fast, the resin 3 is stably adsorbed into the colorant particles 2, and the charge donor 4 is surrounded in a coordinated site formed by the oxyethylene unit chain 3a.
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公开(公告)号：JPH04232787A
公开(公告)日：1992-08-21
申请号：JP41634790
申请日：1990-12-28
Applicant: SONY CORP
Inventor： NATORI MARI , SHINOZAKI KENJI , KAWAKADO KOICHI
Abstract: PURPOSE:To obtain a recording image excellent in mobility of dye and preservability even if a rubber product comes in tight contact therewith. CONSTITUTION:Upper and lower image receiving layers are formed on a base material where the glass transition point of the upper layer is set higher than that of the lower layer, the compatibility with dye of the upper image receiving layer is set lower than that of the lower image receiving layer.
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公开(公告)号：JPH03196159A
公开(公告)日：1991-08-27
申请号：JP33751189
申请日：1989-12-26
Applicant: SONY CORP
Inventor： TSUCHIYA TAKAHISA , SHIROKURA AKIRA , WATANABE HARUO , KAWAKADO KOICHI
Abstract: PURPOSE:To allow the reutilization mainly of the dispersion medium occupying the greater part of the wet developer by removing the unstable charge component of a compsn. by electrophoresis from the used developer. CONSTITUTION:A pair of counter electrodes 8, 9 are disposed on the inner peripheral wall of the electrophoresis part 7 and a DC power source 10 is connected between the counter electrodes 8 and 9. A strong electric field is, therefore, eventually impressed to a used solid toner 1a. The charge components remaining in the used solid toner 1a are attracted to the electrodes of respective reverse polarities by the impression of this electric field and are removed from the solid toner 1a. The components mainly of the dispersion medium occupying the greater part of the wet developer are effectively regenerated in this way.
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公开(公告)号：JPH03196152A
公开(公告)日：1991-08-27
申请号：JP33750589
申请日：1989-12-26
Applicant: SONY CORP
Inventor： KAWAKADO KOICHI , WATANABE HARUO , TSUCHIYA TAKAHISA , SHIROKURA AKIRA
IPC: G03G9/12
Abstract: PURPOSE:To lessen the unequal development and to allow efficient development with a smaller amt. of the developer to be used by specifying the concn. of a coloring agent in a developing stage to 2 to 10wt.%. CONSTITUTION:The prepd. developer 5 is put between a transparent electrode 2 and a metallic plate 3 and the entire part of the device is heated to maintain the developer 5 in a liquefied state and thereafter, a voltage is impressed between the transparent electrode 2 and the metallic plate 3 to develop the positive charged coloring agent on the transparent electrode 2. The concn. of the coloring agent 5 in the developing stage is specified to 2 to 10wt.% at this time. Since the concn. of the coloring agent is sufficiently high, the sufficient development concn. is obtd. only in the thin developer layer 5 in the extreme neighborhood of the electrostatic latent images formed on a photosensitive body and since the shorter migration resistance of the coloring agent particles is necessitated, the generation of convection in the developer is obviated. The development of good uniformity without having the unequal concn. is executed in this way and the amt. of the necessary developer is decreased.
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