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公开(公告)号：JPH05297511A
公开(公告)日：1993-11-12
申请号：JP10468492
申请日：1992-04-23
Applicant: SONY CORP
Inventor： KISHII NORIYUKI , SHIRAI KATSUYA , TAMURA SHINICHIRO , ASAI NOBUTOSHI , IWAMURA TAKASHI , SETO NOBUYOSHI
Abstract: PURPOSE:To stabilize characteristic, to improve a recording state and to enable the execution of recording with high efficiency by executing good recording and reproducing without deterioration by stepwise two photon excitation in the wavelength multiplex recording medium and wavelength multiplex recording method utilizing a light hole burning phenomenon. CONSTITUTION:The wavelength multiplex recording medium is obtd. by dispersing zinc tetraphenyl porphine and adamantane bromide into a supporting material or dispersing dyestuff which has zinc tetraphenyl porphine skeleton and is introduced with electron acceptors as the substitution group into the supporting material. Information signals are recorded by stepwise two photon excitation on the wavelength multiplex recording medium.
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公开(公告)号：JPH0472716B2
公开(公告)日：1992-11-18
申请号：JP7514483
申请日：1983-04-28
Applicant: SONY CORP
Inventor： ISHIMOTO HIKARI , NAGAI TOORU , SATAKE KAZUMOTO , NAKAMURA ETSUKO , SETO NOBUYOSHI
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公开(公告)号：JPH03274545A
公开(公告)日：1991-12-05
申请号：JP7592790
申请日：1990-03-26
Applicant: SONY CORP
Inventor： TAMURA SHINICHIRO , KISHII NORIYUKI , ASAI NOBUTOSHI , SETO NOBUYOSHI
Abstract: PURPOSE:To allow the execution of good recording and reproducing without deterioration by dispersing a light absorptive dye and electron receptor or electron donor into a supporting material, specifying the free energy change of an electron transfer reaction and executing the recording by stepwise two photon stimulation. CONSTITUTION:The light absorptive dye and the electron receptor or electron donor are dispersed into the supporting material and the free energy change DELTAG of the electron transfer reaction is specified to >=-2.0eV; in addition, the recording is executed by the stepwise two photon stimulation. The recording is executed by the photochemical hole burning by the stepwise two photon stimulation if the free energy change DELTAG of the electron transfer reaction is specified to >=-2.0eV by adding the electron receptor or electron donor to the light absorbing dye in such a manner, then this material is cooled to a cryogenic temp. and is simultaneously irradiated with wavelength selecting light and gate light. The reading-out can be executed by the irradiation of only the wavelength selecting light, the photochemical burning is not generated by the irradiation with only the wavelength selecting light and the recording state is maintained as it is. The good recording and reproducing are executed in this way without deterioration.
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公开(公告)号：JPH0245668B2
公开(公告)日：1990-10-11
申请号：JP13505981
申请日：1981-08-28
Applicant: SONY CORP
Inventor： ARAKAWA SEIICHI , KAWAKADO KOICHI , SETO NOBUYOSHI
Abstract: PCT No. PCT/JP82/00345 Sec. 371 Date Apr. 21, 1983 Sec. 102(e) Date Apr. 21, 1983 PCT Filed Aug. 28, 1982 PCT Pub. No. WO83/00873 PCT Pub. Date Mar. 17, 1983.A photochromic photosensitive composition contains a benzothiazolinospiropyran compound represented by the general formula: wherein R1 represents an alkyl group containing 1 to 10 carbon atoms, R2 represents an alkyl group containing 1 to 10 carbon atoms or a phenyl group, R3 represents a hydrogen atom, a halogen atom, a methoxy group or an alkyl group containing 1 to 5 carbon atoms, and R4 represents a hydrogen atom, an alkyl group containing 1 to 5 carbon atoms, a methoxy group or a methylthio group, dissolved or dispersed in a bisphenol A type polyether resin for enhancing thermal stability of the compound in a colored state. Addition of a phenol to the composition serves to further enhance the heat stability. As compared with conventional photochromic compositions, this photochromic photosensitive composition is thermally extremely stable in a colored state, and the developed color image can be stored for an enough long time to be suited for long-time recording.
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公开(公告)号：JPH02195326A
公开(公告)日：1990-08-01
申请号：JP1406289
申请日：1989-01-25
Applicant: SONY CORP
Inventor： URABE TETSUO , SUTEIIBUN BEEKAA , SEKI ATSUSHI , SETO NOBUYOSHI
IPC: G02F1/1337
Abstract: PURPOSE:To allow an easy and highly reliable orientation treatment even with the liquid crystal display element, etc., by an active matrix system by subjecting the surface, which faces a liquid crystal layer, of one substrate to a rubbing treatment and forming an LB film on the surface, which faces the liquid crystal layer, of the other substrate. CONSTITUTION:The LB film is formed on the surface, which faces the liquid crystal layer, of the one substrate of the liquid crystal display element constituted by crimping the liquid crystal layer exhibiting a twisted nematic phase between a pair of the substrates previously formed with electrodes and the surface, which faces the liquid crystal layer, of the other substrate is subjected to the rubbing treatment. Namely, an adequate pretilt angle theta is attained and the sufficient orientation control power is exhibited by combining the orientation treatment by the LB film and the orientation treatment by the rubbing treatment. The liquid crystal display element having the excellent reliability and electric field responsiveness and a high contrast ratio is obtd. in this way.
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Patent Agency Ranking
公开(公告)号：JPH02138708A
公开(公告)日：1990-05-28
申请号：JP8411788
申请日：1988-04-07
Applicant: SONY CORP
Inventor： WATANABE HARUO , KAWAKADO KOICHI , SETO NOBUYOSHI , SHOJI HIROSHI
IPC: C01G49/00 , C09D5/23 , C09D175/06 , G11B5/706 , H01F1/11
Abstract: PURPOSE:To prevent the deterioration of a solvent medium when a magnetic coating material is manufactured by a method wherein the physical properties of surface of powder is remodelled by conducting a prescribed surface treatment on hexagonal system ferrite magnetic powder. CONSTITUTION:Hexagonal system ferrite magnetic powder is surface-treated using tangstic acid anion and/or molybdic acid anion. WO4 , [W12O46] , and the like, MoO4 , [MoO7O24] and the like are used. The larger the valence number becomes, the easier the specific attraction becomes. Magnetic powder is dispersed into the aqueous solution of tangstate or molybdate and anion is adsorbed. The surface density of the tangstic acid ions on the magnetic powder is selected to 0.1 to 10ion/nm , and the surface density of molybdic acid ion is also selected in the range same as above- mentioned. This surface-treated magnetic powder is kneaded with bonding resin, and it is spread on the surface of the non-magnetic supporting member which is publicly known. According to this constitution, no deterioration is generated in a solvent medium when it is formed into a coating material, high filling adaptability and a high orientation can be obtained, and a recording medium of high output can also be obtained.
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公开(公告)号：JPH01125275A
公开(公告)日：1989-05-17
申请号：JP28446587
申请日：1987-11-11
Applicant: SONY CORP
Inventor： YASUDA AKIO , WATANABE HARUO , ITO KENGO , SETO NOBUYOSHI
Abstract: PURPOSE:To enable full color recording through a single operation by forming a color developing part consisting of a plurality of color combinations on a base and providing a position detecting means in accordance with the cycle of the color developing part. CONSTITUTION:A color developing part consisting of a plurality of color combinations on a base is periodically formed on a color developing paper. The conductivity of an index part becomes higher than that of the color developing part, for instance, by forming fine conductive particles obtained by coating SnO2 on the surface of TiO2 as the index part. Thus a resistance is measured by a pair of needle electrodes to detect the location of the index part. The index part I is provided separately from the color developing part and may be formed at a position adjacent to the color developing part consisting of three primary colors of subtractive color process (yellow color developing part Y, magenta color developing part M and cyan color developing part C). The position of a write means on recording paper is correctly controlled and each color developing part develops color accurately in accordance with an image signal. In this way, multicolor recording, especially full color recording is possible.
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公开(公告)号：JPH01105785A
公开(公告)日：1989-04-24
申请号：JP26439387
申请日：1987-10-20
Applicant: SONY CORP
Inventor： YASUDA AKIO , WATANABE HARUO , ITO KENGO , SETO NOBUYOSHI
Abstract: PURPOSE:To obtain an image which is efficient in light resistance and fastness, by a method wherein a material to be transferred is brought opposingly into contact with an ink layer prepared by dispersing charged coloring pigments into bonding agent to be fused by heating, the bonding agent is fused by heating, and the coloring pigment is transferred to the material to be transferred by impressing an electric field. CONSTITUTION:It is necessary that bonding agent is high in insulation property, is solidified and liquefied by heating or cooling, and has a suitable melting point or the like. As coloring agents, those which are known in public such as polyethylene, polyethylene glycol, etc. can be used. When the material to be transferred 1 is opposingly brought into contact with an ink layer 2 and they are heated with an electric heat sensitive head 3, bonding agents of the ink layer 2 of a heated part are fused. When power is applied between the electric heat sensitive head 3 and an electrode 4 under this state, charged coloring pigments 5 show electrophoretic behaviour to be sucked onto the material to be transferred 1 side. Imaging and printing by pigments will become possible by above-mentioned constitution, and the light resistance and fastness thereof will be efficient.
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公开(公告)号：JPS648812B2
公开(公告)日：1989-02-15
申请号：JP13565980
申请日：1980-09-29
Applicant: SONY CORP
Inventor： ARAKAWA SEIICHI , KAWAKADO KOICHI , SETO NOBUYOSHI
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公开(公告)号：JPS63298815A
公开(公告)日：1988-12-06
申请号：JP13399187
申请日：1987-05-29
Applicant: SONY CORP
Inventor： WATANABE HARUO , SETO NOBUYOSHI
Abstract: PURPOSE:To obtain excellent magnetic characteristics such as saturation magnetic flux density and squareness ratio, etc., by compounding polishing powder having the surface tension smaller than the surface tension of a magnetic coating compd. which is subjected to a surface treatment by a dispersant contg. a fluorinated org. material into a magnetic coated film. CONSTITUTION:The polishing powder 1 having the surface tension smaller than the surface tension of the magnetic coating compd. which is subjected to the surface treatment by the dispersant contg. the fluorinated org. material is compounded into the magnetic coated film 2. The polishing powder 1 subjected to the surface treatment by the dispersant contg. the fluorinated org. matter exists in the direction where the powder floats on the surface of the magnetic coated film 2 at the time of coating the magnetic coating compd. The density of the polishing powder 1 near the surface of the coated film 2 increases after the coated film cures. The surfaces of the polishing powder 1 itself are eventually exposed on the surface of the coated film 2 without being covered by the coated film 2. The magnetic characteristics, more particularly, the saturation magnetic flux density and squareness ratio are thereby improved.
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