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公开(公告)号：JP2000155411A
公开(公告)日：2000-06-06
申请号：JP33319098
申请日：1998-11-24
Applicant: SONY CORP
Inventor： IHARA MASARU , ONO KATSUTOSHI , ISHIBASHI TADASHI
Abstract: PROBLEM TO BE SOLVED: To provide the photosensitive material shortened in sensitive light wavelength and capable of matching with the elevatrd precision of a cathode ray tube by using a cross-linking agent having a benzene ring introduced by an alkoxy or alkyl group. SOLUTION: The photosensitive material to be used is a PVP-DAS type photosensitive material prepared by using a photosensitive liquid of polyvinylpyrrolidone(PVP) and the cross-linking agent of sodium 4,4'- diazidostilben-2-2'-disulfonate(DAS), and an electron-donative alkoxy or alkyl group is introduced to the 6-6'-position or 5-5'-position of the benzene ring of DAS to give the electron donative characteristics and steric hindrance and to shorten the PVP-DAS in the sensitive wavelength region. The (n) of (CH3O)n and (CH3)n is, preferably, 1-6, and the most preferable material is the following one most shortened in the photosensitive wavelength: Sodium 4,4'- diazidostilben-6-6'-dimethoxy-2-2'-disulfonate.
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公开(公告)号：JPH11293241A
公开(公告)日：1999-10-26
申请号：JP10503098
申请日：1998-04-15
Applicant: SONY CORP
Inventor： IHARA MASARU , KUSUKI TSUNEO , ONO KATSUTOSHI
Abstract: PROBLEM TO BE SOLVED: To obtain a nano-crystalline phosphor which can be excited at a low voltage and fluoresces a green or red color. SOLUTION: There is provided a nano-crystalline phosphor comprising a nano-structure crystal comprising a fluorine-charge-compensated terbium or europium-activated zinc sulfide and having a particle diameter of 2-5 nm. To produce the nano-crystalline phosphor, zinc acetate and sodium sulfide, terbium nitrate (or europium nitrate), and sodium fluoride are mixed in such amounts that the terbium (or europium) is present in an amount of 0.5-5 mol.% based on the zinc, and the fluorine is present in an amount of 1.5-15 mol.%, and the mixture is subjected to a liquid-phase reaction to coprecipitate nano-structure crystals of zinc sulfide doped with a fluorine-charge-compensated terbium (or europium). By compensating the difference between the charges of terbium or europium and zinc by introducing fluoride ions, the luminance characteristics can be markedly improved.
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公开(公告)号：JPH10310770A
公开(公告)日：1998-11-24
申请号：JP21217197
申请日：1997-08-06
Applicant: SONY CORP
Inventor： IHARA MASARU , ONO KATSUTOSHI , SENNA TAMOTSU , ISOBE TETSUHIKO , IGARASHI TAKAHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a luminophor having a nano- structure and excitable in a low voltage range by forming a semiconductor of the group II to VI doped with an activator by a coprecipitation-aided liquid- phase reaction process with an organic acid incorporated in the reaction system. SOLUTION: This luminophor is obtained by a coprecipitation-aided liquid- phase reaction process with an organic acid (preferably acrylic or methacrylic acid) incorporated in the reaction system, to form a semiconductor of the group II to VI (preferably zinc sulfide) doped with an activator (preferably manganese). When, for example, zinc sulfide as the semiconductor doped with manganese as the activator is to be formed, the liquid-phase reaction process reacts manganese acetate and zinc acetate with sodium sulfide in a solvent. This process polymerizes the incorporated organic acid into a polymer, which is chemically bound to the semiconductor to provide part of the energy required for emitting light.
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公开(公告)号：JPH08174888A
公开(公告)日：1996-07-09
申请号：JP33791694
申请日：1994-12-27
Applicant: SONY CORP , KASEI OPTONIX , MITSUBISHI CHEM CORP
Inventor： KURODA KATSUHIKO , KAWANA MAKOTO , IHARA MASARU , ONO KATSUTOSHI
Abstract: PURPOSE: To provide a thermal transfer head of a specific structure used to transfer a line. CONSTITUTION: The end of a head body 32 is formed in a circular arc state, and the peripheral surface directed at least any one peripheral direction with the vicinity of the most protruding part of the end as a base point can be heated by a heater 36 connected to conductive layers 34a, 34b.
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公开(公告)号：JP2000104058A
公开(公告)日：2000-04-11
申请号：JP27359698
申请日：1998-09-28
Applicant: SONY CORP
Inventor： IHARA MASARU , IGARASHI TAKAHIRO , KUSUKI TSUNEO , ONO KATSUTOSHI , SENNA TAMOTSU , ISOBE TETSUHIKO , KONISHI YOSHIO
Abstract: PROBLEM TO BE SOLVED: To produce a nanocrystal phosphor having a nanostructure crystal, doped well with an activator, and having a high luminous efficiency. SOLUTION: A nanocrystal phosphor activated with an activator and having a mean particle diameter of 2-5 nm is irradiated with ultraviolet rays. The nanocrystal phosphor is synthesized by a liquid-phase reaction utilizing coprecipitation. For example, a manganese-doped zinc sulfide nanocrystal phosphor is synthesized by reacting manganese acetate with zinc acetate together with sodium sulfide in a solvent. In carrying out the liquid phase reaction, an organic acid such as acrylic acid or methacrylic acid is added. Alternatively, after the liquid-phase reaction, a polymeric organic acid such as polyacrylic acid or polymethacrylic acid or a polystyrene is added.
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Patent Agency Ranking
公开(公告)号：JPH10298547A
公开(公告)日：1998-11-10
申请号：JP10615097
申请日：1997-04-23
Applicant: SONY CORP
Inventor： IHARA MASARU , KATO HIROSHI , ONO KATSUTOSHI
Abstract: PROBLEM TO BE SOLVED: To obtain a cathode-ray tube capable of bringing high luminance in blue color by forming a fluorescent surface using a high visibility and luminance by coactivating ZnS:Ag, Al with Cu. SOLUTION: This cathode-ray tube has a fluorescent surface using a blue fluorescent substance prepared by coactivating ZnS:Ag, Al with Cu. It is preferable to bring the amount of coactivated Cu in the blue fluorescent substance to 0.6-1.5 ppm and 1.5 ppm is most preferable. The blue fluorescent substance comprising ZnS:Ag, Al coactivated with Cu is prepared by a usual solid phase reaction.
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公开(公告)号：JPH10199451A
公开(公告)日：1998-07-31
申请号：JP235097
申请日：1997-01-09
Applicant: SONY CORP
Inventor： KOSUGI TOMOO , HAYASHI MUNEHARU , IHARA MASARU , MORI HIROSHI , ONO KATSUTOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a panel structure of a display device by which two panels can be accurately assembled and which is suitable for high volume production. SOLUTION: A flat panel 10 is constituted of a cathode panel (a front panel) 11 and an anode panel (a front panel) 12. The cathode panel 11 is constituted of a plate like glass substrate. On the other hand, the anode panel 12 is formed as a spacer integrated structure, and is constituted by preforming plural atmospheric pressure resistant spacer parts 12b and an airtightly sealing spacer part 12c on a plate-like panel body 12a. A height of the spacer parts 12b is formed in the size adjusted to the size of a clearance between the cathode panel 11 and the anode panel 12, and a height of the spacer part 12c is formed in the same as the atmospheric pressure resistant spacer parts 12b or lower than the spacer parts 12b. A clearance between the spacer part 12c and the cathode panel 12 is sealed by using frit glass 13, and when evacuation is performed, the plural spacer parts 12b function as an atmospheric pressure resistant structure.
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公开(公告)号：JPH06267418A
公开(公告)日：1994-09-22
申请号：JP5109093
申请日：1993-03-11
Applicant: MITSUBISHI CHEM IND , KASEI OPTONIX , SONY CORP
Inventor： SHINOHARA HIDEO , KURODA KATSUHIKO , OGURI YASUO , UCHIDA HIROSHI , ONO KATSUTOSHI , IHARA MASARU
IPC: H01J9/227
Abstract: PURPOSE:To easily and effectively form a fluorescent screen on a glass substrate, in particular, on the face plate of a cathode-ray tube by preliminarily preheating the glass substrate before a thermal transfer phosphor layer is transferred on the glass substrate. CONSTITUTION:When a fluorescent screen is to be formed on the face plate 8 of a cathode-ray tube, a detection means such as an optical sensor is swept on the plate 8 in the direction of driving a thermal head, to detect the position and the interval of a black matrix. A thermal transfer material 7 is preliminarily preheated and superimposed on a glass substrate, in particular, on the plate 8 of a cathode-ray tube, and is applied and swept while being pressed by a line thermal head 9. When the material 7 is peeled off, the transfer layer 10 of a phosphor layer is transferred into a desired shape. The temperature of preheating is no more than the blocking temperature of the thermal transfer phosphor layer and no less than room temperature. The plate 8 is baked at 400-500 deg.C, and a fluorescent screen is formed by removing organic components other than phosphor. The phosphor layer can thus be transferred without carrying out excess application.
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公开(公告)号：JP2002201471A
公开(公告)日：2002-07-19
申请号：JP2000398798
申请日：2000-12-27
Applicant: SONY CORP
Inventor： IGARASHI TAKAHIRO , IHARA MASARU , KUSUKI TSUNEO , ONO KATSUTOSHI , SENNA TAMOTSU , ISOBE TETSUHIKO , KUBO TAKASHI
Abstract: PROBLEM TO BE SOLVED: To produce a zinc sulfide:manganese emitter having a high emission intensity. SOLUTION: A sulfuric acid salt 3 is added to a zinc manganese aqueous solution composed of a zinc aqueous solution 1 and a manganese aqueous solution 2 to prepare a suspension of zinc sulfide:manganese emitter particles. An organic substance having a carboxy group or a phosphate group 4 (5) is added to this suspension to prepare a suspension of the above emitter particles covered with the above organic substance. The emitter particles covered with the above organic substance are obtained from this suspension by centrifugal separation and drying to produce a zinc sulfide:manganese emitter.
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公开(公告)号：JP2000215826A
公开(公告)日：2000-08-04
申请号：JP1221099
申请日：1999-01-20
Applicant: SONY CORP
Inventor： IHARA MASARU , IGARASHI TAKAHIRO , KUSUKI TSUNEO , ONO KATSUTOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a novel fluorescent screen structure with high brightness in spite of use of a phosphor having nanometer crystalstructure. SOLUTION: A fluorescent screen is constituted of a phosphor layer 3 containing an ultraviolet luminescent bulk phosphor 3b conducting ultraviolet luminescence by electron beam excitation and a nano-crystal phosphor 3a emitting light by ultraviolet ray excitation. Ultraviolet luminescence is conducted by irradiating with electron beams the ultraviolet luminescent bulk phosphor 3b, and the nano-crystal phosphor 3a emits light by exciting energy of the ultraviolet luminescence. The ultraviolet luminescent bulk phosphor 3b and the nano-crystal phosphor 3a may be stacked or mixed.
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