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1. 发明专利

JPH0436382A FLUORPHOR AND CATHODE-RAY TUBE USING IT 失效
公开(公告)号：JPH0436382A
公开(公告)日：1992-02-06
申请号：JP14140390
申请日：1990-06-01
申请人： HITACHI LTD , KASEI OPTONIX
发明人： YAMAMOTO AKIRA , SUZUKI TERUKI , YAMADA TAKAMICHI , MATSUKIYO HIDEJI , MORITA YASUKAZU , UEHARA YASUHIKO , KOSEKI NOBUHIRO , YAMADA TSUTOMU , OMATOI SUSUMU , FUJINO SHIGEO , HASE TAKASHI
IPC分类号： C09K11/78 , C09K11/79 , C09K11/80 , H01J29/20
摘要： PURPOSE:To obtain a green emitting fluorphor lessened in the drop of luminance upon irradiation with high-density electron beams, decreased in the satd. luminance and high in the luminescent efficiency by selecting a Tb-activated oxide fluophor contg. a specified additive element and emitting a light of specified color tone. CONSTITUTION:An oxide fluophor prepd. by adding at least one additive element selected from Yb, Tm, Sm and Eu to a Tb-activated fluophor of the formula (Y1-xTbx)3 (Al1-zGaz)5O12(1X10 ppm (mol fraction) based on the sites to be occupied by Tb and emitting a light of which color tone is in the range of 0.325

2. 发明专利

JPH02135276A BRAUN TUBE 失效
公开(公告)号：JPH02135276A
公开(公告)日：1990-05-24
申请号：JP28767988
申请日：1988-11-16
申请人： HITACHI LTD
发明人： YAMAMOTO AKIRA , SUZUKI TERUKI , YAMADA TAKAMICHI , MATSUKIYO HIDEJI
IPC分类号： C09K11/08 , C09K11/56 , H01J29/20
摘要： PURPOSE:To obtain a blue image receiving tube among red, green and blue luminescent image receiving tubes useful for projection television, having a fluorescent screen consisting of a first fluorescent substance of ZnS:Ag, Al and a second fluorescent substance except the first fluorescent substance in a specific ratio. CONSTITUTION:A monochromatic Braun tube having >=0.1w/cm tubular surface load and a fluorescent screen containing (A) a first fluorescent substance having a composition formula shown by ZnS:Ag,Al and (B) a second fluorescent substance except the component A. A Braun tube comprising the second fluorescent substance having higher luminescent energy efficiency by electron beam excitation than 15% luminescent energy of the first fluorescent substance, having >=0.8 exponent in approximation of emission luminance proportional to exponent of electric current of cathode, a luminescent chromaticity coordinate in ranges of

3. 发明专利

JPS6247229B2 失效
公开(公告)号：JPS6247229B2
公开(公告)日：1987-10-07
申请号：JP2052080
申请日：1980-02-22
申请人： HITACHI LTD
发明人： YAMADA TAKAMICHI , SUZUKI ATSUSHI , UCHIDA YOKO , TANIMIZU SHINKICHI
IPC分类号： C09K11/08 , C09K11/86 , H01J61/44

4. 发明专利

JPS5975042A X-ray ct apparatus 失效
公开(公告)号：JPS5975042A
公开(公告)日：1984-04-27
申请号：JP18448482
申请日：1982-10-22
申请人： Hitachi Ltd , Hitachi Medical Corp
发明人： KOUNO HIDEKI , SUZUKI ATSUSHI , YOSHIDA MINORU , YAMADA TAKAMICHI , UCHIDA YOUKO , SUZUKI KOUJI
IPC分类号： G01N23/04 , A61B6/02 , A61B6/03

5. 发明专利

JPS58786A RADIATION DETECTOR 失效
公开(公告)号：JPS58786A
公开(公告)日：1983-01-05
申请号：JP9766782
申请日：1982-06-09
申请人： HITACHI LTD
发明人： SUZUKI ATSUSHI , URABE KOUICHI , YAMADA TAKAMICHI , KOUNO HIDEKI
IPC分类号： G01T1/20 , G01T1/202
摘要： PURPOSE:To obtain a detector having a uniform capacity, by detecting the fluorescence due to the radiation of phosphor particles held in a vessel, which has a light reflective inside wall and has a light transmissive window partially, in the detector of an X- ray CT or the like. CONSTITUTION:A vessel 1 has the inside wall coated with a film consisting of silver or the like, which has a high reflection factor for visible and near infrared rays, and is formed with a radiation shielding material such as lead except the incidence face of radiant rays 6. Phosphor particles 2 are held in the vessel 1 and have an average particle size of 5-15mum and consist of Y2O2S, La2O2S, Gd2O2S, Lu2O2S, LaOBr, BaFCl, BaFBr, and BaSO4, which are invigorated by one, at least of Eu, Pr, and Tb, and CdS or Cu, Al, and CdS or Ag, Cl, ZnS or Cu, Al, and CaWO4 or CdWO4. The light emitted from particles 2 is led by an optical guide 3 and is received on a photodetector 5 and is converted to an electric signal. The layer of particles 2 is fixed with an epoxy resin or the like. Thus, a detector having a uniform capacity is obtained.

6. 发明专利

JPH02132396A RADIATION DETECTOR 失效
公开(公告)号：JPH02132396A
公开(公告)日：1990-05-21
申请号：JP23163589
申请日：1989-09-08
申请人： HITACHI LTD , HITACHI MEDICAL CORP
发明人： YOSHIDA MINORU , YAMADA TAKAMICHI , UCHIDA YOKO , KONO HIDEKI , TAKAGI HIROSHI
IPC分类号： G01T1/161 , A61B6/03 , G01T1/20
摘要： PURPOSE:To reduce crosstalk by forming detecting elements of photodiodes arrayed on a substrate at fine intervals and scintillators arranged on the respective photodiodes. CONSTITUTION:Extremely small grooves are formed in a printed board 8 and a light shield plate 5 where Si photodiodes 7 with which scintillator crystal 6 is coupled optically are arrayed and installed at the specific intervals and partition plates 9 for respective detecting elements are inserted into the grooves. Thus, the partition plates 9 are inserted and when grooves which prevent a light leak between adjacent detecting elements are formed, the grooves need to be at least 1mm. In this case, the intensity of radiation is 0.5 - several % and a difference in elements due to the leak of light or radiation at the tip part of the partition late between detecting element is reduced extremely.

7. 发明专利

JPH01261258A PRODUCTION OF CERAMIC SCINTILLATOR 失效
公开(公告)号：JPH01261258A
公开(公告)日：1989-10-18
申请号：JP8738488
申请日：1988-04-11
申请人： HITACHI LTD , HITACHI METALS LTD , HITACHI MEDICAL CORP
发明人： KANETOMO MASABUMI , IMAI KUNINORI , ITO YUKIO , TAKEUCHI HIROYUKI , YAMADA TAKAMICHI , TODA AKIZO , TSUKUDA YASUO
IPC分类号： C04B35/547 , C04B35/00 , C04B35/64
摘要： PURPOSE:To obtain a ceramic scintillator having high light-emission intensity, extremely low scattering of the intensity and excellent uniformity, by adopting a pressing mechanism with a hydrostatic press in the vacuum sealing step in the sintering of a rare-earth metal oxysulfide by HIP process. CONSTITUTION:A rare-earth metal oxysulfide 1 is vacuum-sealed in a metal capsule 2 and sintered under pressure. In the above process, the vacuum-sealing of the metal capsule is performed with a pressing mechanism without applying vibration to the metal capsule. A sealed part 9 can be formed at the tip end of a pipe 3 by using a hydraulic press 6 as a pressing means 7 and pressing the vacuum-sealing part 5 of the pipe 3 protruded from the metal capsule 2 with a cylindrical cemented carbide tip 8.

8. 发明专利

JPH01185389A PHOSPHOR AND FLUORESCENT LAMP PREPARED FROM THE SAME 失效
公开(公告)号：JPH01185389A
公开(公告)日：1989-07-24
申请号：JP956888
申请日：1988-01-21
申请人： HITACHI LTD
发明人： YAMADA TAKAMICHI , SUZUKI TERUKI , YAMAMOTO AKIRA
IPC分类号： H01J61/44 , C09K11/64
摘要： PURPOSE:To obtain a highly bright phosphor emitting blue light which gives a fluorescent lamp having high color rendering properties, high luminous flux efficiency, high color temp. and less occurrence of color shade, by mixing together compds. contg. ingredient elements of a desired substance in predetermined proportions, optionally followed by addition of a flux, and calcining it. CONSTITUTION:Oxides or precursor substances contg. ingredient elements of a desired substance are mixed together in predetermined element proportions, optionally followed by addition of a flux comprising a fluoride compd. which vaporizes at high temps., such as ZnF2. The mixture is calcined in a reducing atmosphere (e.g., in H2 or atmosphere of H2 + inert gas) at 1,000-1,500 deg.C, and pulverized. Optionally, a flux such as an alkali metal salt is added thereto and the mixture is and re-calcined in the aforesaid atmosphere at 1,000-1,500 deg.C. Thus, a phosphor of the formula (wherein M is Zn or Mg; Z is Ca, Sr, or Ba; 0

9. 发明专利

JPS6130221B2 失效
公开(公告)号：JPS6130221B2
公开(公告)日：1986-07-11
申请号：JP9766782
申请日：1982-06-09
申请人： HITACHI LTD
发明人： SUZUKI ATSUSHI , URABE KOICHI , YAMADA TAKAMICHI , KONO HIDEKI
IPC分类号： G01T1/20 , G01T1/202

10. 发明专利

JPS61136580A Preparation of phosphor 失效
标题翻译：磷的制备
公开(公告)号：JPS61136580A
公开(公告)日：1986-06-24
申请号：JP25751484
申请日：1984-12-07
申请人： Hitachi Ltd
发明人： YAMADA TAKAMICHI , SUZUKI TERUKI , MATSUKIYO HIDEJI , SUZUKI ATSUSHI , YAMAMOTO AKIRA
IPC分类号： C09K11/08 , C09K11/74
摘要： PURPOSE: To obtain a blue light-emitting phosphor with prolonged after-grow for a color display tube with excellent luminance, by baking oxides of Sr, Ca, Mn and Sb, etc. with addition of a sulfate of K, Rb, Na or Cs as a flux.
CONSTITUTION: Oxides of Sr, Ca, Mn and Sb, or compounds forming these oxides by heating are well mixed and then fired at about 1,100°C. The fired product is crushed and then fired again at about 1,200°C in O
2 with addition of at least one comp. selected from among K
2 SO
4 , Rb
2 SO
4 , Na
2 SO
4 and Cs
2 SO
4 as a flux, to obtain a blue light-emitting phosphor of the formula (wherein 0≤x≤0.99; 0.01≤y≤0.25).
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了获得具有优异亮度的彩色显像管长时间生长的蓝色发光荧光体，通过加入Sr，Ca，Mn和Sb等的氧化物，加入K，Rb，Na的硫酸盐或 Cs作为助焊剂。构成：Sr，Ca，Mn和Sb的氧化物或通过加热形成这些氧化物的化合物充分混合，然后在约1100℃下烧制。将烧制的产品粉碎，然后再次在约1,200℃下在O 2中再加入至少一种化合物。选自K2SO4，Rb2SO4，Na2SO4和Cs2SO4作为助熔剂，得到下式的蓝色发光荧光体（其中0 <= x <= 0.99; 0.01 <= y <= 0.25）。

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