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1. 发明专利

JP2003215069A METHOD OF MEASURING X-RAY DIFFRACTION AND X-RAY DIFFRACTOMETER 审中-公开
公开(公告)号：JP2003215069A
公开(公告)日：2003-07-30
申请号：JP2002012849
申请日：2002-01-22
申请人： MITSUBISHI CHEM CORP
发明人： KIJIMA NAOTO , SETO TAKATOSHI
IPC分类号： G01B11/00 , G01N23/201 , G21K1/06
摘要： PROBLEM TO BE SOLVED: To solve the problem that the X-ray diffraction pattern of each sample is hardly obtained independently and accurately when a plurality of samples is subjected to X-ray diffraction. SOLUTION: An X-ray diffractometer has an X-ray projecting section for projecting X-rays onto a sample, a diffracted X-ray detecting section for detecting diffracted X-rays, and a sample holding section for holding a sample. The diffractometer also has a position adjusting mechanism provided with a light projecting section which projects light upon a prescribed position of the sample holding section, a light receiving section which receives reflected light from the sample when the light generated from the light projecting section is projected upon the sample, and a position control section which measures the received angle or position of the reflected light and decides the moving distance of the sample holding section in the thickness direction of the sample in accordance with the measured received angle or position of the reflected light. The mechanism is also provided with a moving section which moves the sample holding section in the thickness direction of the sample in accordance with the decided moving distance. COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2002155276A METHOD FOR PRODUCING RARE EARTH PHOSPHATE FLUOPHOR 失效
公开(公告)号：JP2002155276A
公开(公告)日：2002-05-28
申请号：JP2000352355
申请日：2000-11-20
申请人： KASEI OPTONIX , MITSUBISHI CHEM CORP
发明人： IGNATIUS ULETTO LENGORO , OKUYAMA KIKUO , KIJIMA NAOTO
IPC分类号： C01B25/45 , C09K11/08 , C09K11/81 , H01J11/22 , H01J11/34 , H01J11/42 , H01J29/20 , H01J61/44 , H01J11/02
摘要： PROBLEM TO BE SOLVED: To provide a method for inexpensively producing a high-purity rare earth phosphate fluophor of spherical particle shape with narrow particle size distribution, slight aggregated particles, uniform chemical composition and excellent emission characteristics, and suitable for forming coating film on cathod ray tubes, fluorescent lamps, plasma display panels(PDP), field emission displays(FED), etc. SOLUTION: This method for producing a rare earth phosphate fluophor comprises the following process: a fluophor stock aqueous solution containing at least one rare earth element selected from La, Gd and Y, P, Ce and Tb is prepared and made into droplets, which are then introduced together with a carrier gas into a pyrolysis oven and heated at 800-1,900 deg.C for 1 s to 10 min.

3. 发明专利

JP2001220581A PREPARATION PROCESS OF PHOSPHOR PARTICLE 失效
公开(公告)号：JP2001220581A
公开(公告)日：2001-08-14
申请号：JP2000365369
申请日：2000-11-30
申请人： MITSUBISHI CHEM CORP , KASEI OPTONIX
发明人： KIJIMA NAOTO , MIWA TAIICHIRO
IPC分类号： C09K11/08
摘要： PROBLEM TO BE SOLVED: To provide a process for preparing a phosphor particle which has narrow particle size distribution, contains a few agglomerated particles, has a globular shape or a shape close to this, has a high purity and a uniform chemical composition and shows excellent luminous properties with a small energy consumption. SOLUTION: In the process for preparing a phosphor particle from a solution containing a metal element constituting a phosphor, using a nozzle which has a phorality of solution channels and a piezoelectric element head 3 or a thermal head at its tip part 1, the above-mentioned phosphor material solution 5 is discharged from the nozzle as fine droplets 6 into a gas atmosphere. The droplets are dried, heated and subjected to pyrolysis synthesis.

4. 发明专利

JP2001152146A PREPARATION PROCESS OF FLUORESCENT BODY 失效
公开(公告)号：JP2001152146A
公开(公告)日：2001-06-05
申请号：JP34185699
申请日：1999-12-01
申请人： MITSUBISHI CHEM CORP , KASEI OPTONIX
发明人： KIJIMA NAOTO , MIWA TAIICHIRO
IPC分类号： C01G9/08 , C01F17/00 , C09K11/08 , C09K11/56 , C09K11/64 , C09K11/78 , C09K11/84
摘要： PROBLEM TO BE SOLVED: To provide a process for surely preparing a fluorescent body which has a narrow particle size distribution of the fluorescent body particles, contains little coagulated particles, has a globular or nearly globular form, has a high purity and a uniform chemical composition and shows an excellent luminous property. SOLUTION: In this preparation process of a fluorescent body, a solution containing the metal element constituents of the fluorescent body is atomized into an accompanying gas as fine droplets, and dried. Then, the gas accompanying the dried particles is introduced into a pyrolysis synthesis oven, heated at from 600 to 1,900 deg.C for from 0.5 see to 10 min to generate a pyrolysate. The pyrolysate is scavenged, subsequently filled in a calcine vessel for re-heating and re-heated at a temperature which is at least 10 deg.C higher than the above pyrolysis temperature and yet within the range of from 500 to 1,800 deg.C for from 10 min to 24 hr.

5. 发明专利

JP2002322471A FLUOROPHOR AND METHOD FOR PRODUCING THE SAME 失效
公开(公告)号：JP2002322471A
公开(公告)日：2002-11-08
申请号：JP2001131210
申请日：2001-04-27
申请人： KASEI OPTONIX , MITSUBISHI CHEM CORP
发明人： SHIMOMURA YASUO , KIJIMA NAOTO
IPC分类号： C09K11/08 , C09K11/78
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive fluorophor which can form a homogeneous, dense, highly bright fluorescent film, has a narrow particle size distribution, scarcely contains agglomerates, is spherical, and has a high purity, a uniform chemical composition, and excellent light-emitting characteristics. SOLUTION: This method for producing the fluorophor, comprising spraying a solution containing metal elements constituting the fluorophor in a carrier gas to form fine liquid drops, drying the fine liquid drops to form the metal salt particles or metal complex particles, and then heating the metal salt particles or metal complex particles to carry out the thermal decomposition synthesis of the fluorophor, is characterized by adding a thin film layer-forming substance to the solution, evaporating or decomposing the thin film layer-forming substance in a gas state in the thermal decomposition synthesis process, and depositing the gas state thin film layer-forming substance to the surfaces of the fluorophor particle surfaces to form the thin film layers having an average film thickness of >=10 nm.

6. 发明专利

JP2002322470A FLUOROPHOR AND METHOD FOR PRODUCING THE SAME 失效
公开(公告)号：JP2002322470A
公开(公告)日：2002-11-08
申请号：JP2001131209
申请日：2001-04-27
申请人： KASEI OPTONIX , MITSUBISHI CHEM CORP
发明人： SHIMOMURA YASUO , KIJIMA NAOTO
IPC分类号： C09K11/08 , C09K11/64 , C09K11/78
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive fluorophor which can form a homogeneous, dense, highly bright fluorescent film, when applied to a cathode-ray tube, a fluorescent lamp, a PDP, has a narrow particle size distribution, scarcely contains agglomerates, is spherical, and has a high purity, a uniform chemical composition, and excellent light-emitting characteristics. SOLUTION: This method for producing the fluorophor, comprising spraying a solution containing metal elements constituting the fluorophor in a carrier gas to form fine liquid drops, drying the fine liquid drops to form the metal salt particles or metal complex particles, and then heating the metal salt particles or metal complex particles to carry out the thermal decomposition synthesis of the fluorophor, is characterized by allowing a gas state metal hydroxide to expose the atmospheric gas of the thermal decomposition synthesis.

7. 发明专利

JP2002194348A METHOD FOR PRODUCING RARE EARTH BORATE FLUORESCENT SUBSTANCE 失效
公开(公告)号：JP2002194348A
公开(公告)日：2002-07-10
申请号：JP2000394653
申请日：2000-12-26
申请人： KASEI OPTONIX , MITSUBISHI CHEM CORP
发明人： KIJIMA NAOTO
IPC分类号： C09K11/08 , C09K11/78
摘要： PROBLEM TO BE SOLVED: To provide a method for producing at a low cost a rare earth silicate borate fluorescent substance whose particles have a narrow particle distribution and which are little in coagulated particles, spherical, and highly pure, and have a uniform chemical composition and excellent fluorescent brightness. SOLUTION: This method for producing the rare earth silicate borate fluorescent substance comprises preparing a fluorescent substance solution containing at least one rare earth element selected from La, Gd and Y, and Eu and B, changing the solution into a liquid drop-like form, introducing the liquid drops together with a carrier gas into a thermal decomposition reaction oven and heating the mixture at a temperature ranging from 850 to 1450 deg.C for 1 sec to 10 min.

8. 发明专利

JP2002038144A METHOD FOR PRODUCING ZINC SILICATE FLUORESCENT SUBSTANCE 失效
公开(公告)号：JP2002038144A
公开(公告)日：2002-02-06
申请号：JP2000228834
申请日：2000-07-28
申请人： KASEI OPTONIX , MITSUBISHI CHEM CORP
发明人： IGNATIUS ULETTO LENGORO , OKUYAMA KIKUO , KIJIMA NAOTO
IPC分类号： C09K11/08 , C09K11/59
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a manganese-activated zinc silicate fluorescent substance having a narrow particle size distribution, uniform in shape and chemical composition and excellent in luminous characteristics. SOLUTION: This method for manganese-activated zinc silicate fluorescent substance is characterized by preparing an aqueous solution containing at least manganese, silicon and zinc, forming the resultant solution into droplets, introducing the formed droplets, together with a carrier gas, into a thermal decomposition reactional furnace, heating and thermally decomposing the droplets at 1,050-1,430 deg.C temperature for a time within the range of 1 s to 10 min.

9. 发明专利

JP2002012862A ZINC SULFIDE PHOSPHOR AND METHOD FOR EVALUATING LUMINANCE OF THE PHOSPHOR. 失效
公开(公告)号：JP2002012862A
公开(公告)日：2002-01-15
申请号：JP2000196499
申请日：2000-06-29
申请人： KASEI OPTONIX , MITSUBISHI CHEM CORP
发明人： KAKIHANA MASATO , OSADA MINORU , ADACHI RYUJI , ICHIHARA TAKASHI , KIJIMA NAOTO
IPC分类号： G01N21/65 , C09K11/56
摘要： PROBLEM TO BE SOLVED: To provide a zinc sulfide phosphor having high luminance and a method for evaluating the luminance of the zinc sulfide phosphor. SOLUTION: The objective zinc sulfide phosphor is characterized by the near infrared Raman spectrum obtained by irradiating a zinc sulfide fluorescent material with monochromatic near infrared ray and spectroscoping the scattered rays and having an intensity ratio (ILO/IS) of >=0.7 wherein ILO is the intensity of Raman line at a Raman shift value σLO of 330-354 cm-1 and IS is the intensity of Raman line on a silicon wafer surface of the face index 100 at a Raman shift value σS of 521 cm-1 and measured under the condition the same as the measuring condition of the Raman intensity ILO.

10. 发明专利

JP2001220580A PREPARATION PROCESS OF PHOSPHOR PARTICLE 失效
公开(公告)号：JP2001220580A
公开(公告)日：2001-08-14
申请号：JP2000365368
申请日：2000-11-30
申请人： MITSUBISHI CHEM CORP , KASEI OPTONIX
发明人： KIJIMA NAOTO , MIWA TAIICHIRO
IPC分类号： C09K11/08
摘要： PROBLEM TO BE SOLVED: To provide a preparation process of a phosphor which has a narrow particle size distribution of phosphor particles, contains a few agglomerated particles, has a globular shape or shape close to this, has a high purity and a uniform chemical composition and shows excellent luminous properties. SOLUTION: In the process for preparing phosphor from a solution containing a metal element constituting a phosphor, the above-mentioned solution is previously prepared, and, using a nozzle which has an ejection outlet 2 for a highpressure gas behind a smooth surface 1 and a feed opening 3 for the above- mentioned solution at the middle part of the smooth surface and discharges fine droplets from the end of the smooth surface, the solution is supplied from the feed opening while the highpressure gas ejected from the ejection outlet toward the smooth surface flows down and forms a high-speed gas flow without detaching from the smooth surface. The highspeed gas flow pushes the solution against the smooth surface to form a thin film flow, which is discharged as fine droplets 5 from the end 4 of the smooth surface. The droplets are dried, heated and subjected to pyrolysis synthesis to prepare a phosphor.

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