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11. 发明专利

JPH02223126A MANUFACTURE OF CATHODE HOLDING HERMETIC COMPONENT FOR ELECTRON GUN 失效
公开(公告)号：JPH02223126A
公开(公告)日：1990-09-05
申请号：JP1494990
申请日：1990-01-26
申请人： HITACHI LTD
发明人： KAWAMURA HIROMITSU , MIYAZAKI MASAHIRO , OBARA KATSUMI
IPC分类号： H01J9/04
摘要： PURPOSE:To prevent the occurrence of rise sections caused by the increase of the filled quantity of a glass material and the increase of the baking temperature by limiting the drop quantity of a carbon weight on carbon jigs inserted with the glass material for baking. CONSTITUTION:Stoppers 5a' and 5c' limiting the drop quantity of a load carbon weight 7 are provided on the upper opening ends of side mold carbon jigs 5a and 5c, and a gap 5b' in which an excess quantity of a glass material escapes is provided on a lower mold carbon jig 5b. The carbon weight 7 is lowered downward as a glass button 8 is softened and fluidized, and it is stopped in contact with stoppers 5a' and 5c' limiting the drop quantity at the fixed position. Excess glass is sucked to the gap 5b' of the lower mold carbon jig 5b, almost all the glass is filled when heating is completed, and a cathode holding hermetic component is formed. The occurrence of rise sections 2a of a glass board is prevented.

12. 发明专利

JPH0283239A FORMATION OF DIELECTRIC THIN FILM 失效
公开(公告)号：JPH0283239A
公开(公告)日：1990-03-23
申请号：JP23244088
申请日：1988-09-19
申请人： HITACHI LTD
发明人： SAITO AKIO , NAKATANI MITSUO , KAWAMURA HIROMITSU
IPC分类号： G02B1/10 , C03C17/25 , G02B1/111
摘要： PURPOSE:To form the title thin film in high throughput at low cost by coating a glass substrate with an organic solvent solution of an organometallic complex followed by irradiating the resultant coated surface with pulse rays. CONSTITUTION:About 7.5wt.% of an organometallic complex, e.g., a metal alkoxide (e.g., titanium isopropoxide) is dissolved in ethylene glycol monoethyl ether followed by addition of ca. 1wt.% of nitric acid into a coating solution 2. Thence, a glass substrate 1 is coated with this solution 2 at a spinner turns of revolution of ca. 500-3000rpm followed by irradiating, for several minutes, the resultant coated surface with rays a with a lamp made into pulses through a chopper to promote the hydrolysis of the coating solution 2, thus obtaining the objective dielectric thin film 3. In the pulse ray irradiation, it can be con firmed by e.g., a thermocouple that the glass substrate 1 has been kept at low temperatures. By the above forming method, lens products, filters, etc., can be manufactured at low cost.

13. 发明专利

JPH01298301A ANTIREFLECTION FILM 失效
公开(公告)号：JPH01298301A
公开(公告)日：1989-12-01
申请号：JP12832088
申请日：1988-05-27
申请人： HITACHI LTD
发明人： ENDO KIJU , ARAYA TAKESHI , ONO MASAHIKO , HIOKI SUSUMU , KAWAMURA HIROMITSU
IPC分类号： G02B1/11 , G02B1/111
摘要： PURPOSE:To form a film the volume of which is changed nearly continuously by superfine particles in the depth direction on a glass surface and to easily obtain the antireflection film in mass production by coating the glass surface with a soln. contg. superfine SiO2 particles which have a specific average grain size and are imparted with a grain size distribution. CONSTITUTION:The glass surface is coated with the solvent added with the superfine particles having the grain size distribution of

14. 发明专利

JPH01211830A MANUFACTURE OF CATHODE-RAY TUBE 失效
公开(公告)号：JPH01211830A
公开(公告)日：1989-08-25
申请号：JP3521288
申请日：1988-02-19
申请人： HITACHI LTD
发明人： KAWAMURA HIROMITSU , OBARA KATSUMI , KAWAMURA TAKAO
IPC分类号： H01J9/20 , H01J29/88
摘要： PURPOSE:To obtain a highly durable coating by applying a solution, which is prepared by mixing the fine grains of predetermined transparent and electrically conductive oxides and mixture thereof into alcoholic solution with predetermined composition, onto the panel surface of a cathode-ray tube, then carrying out heat treatment thereof at a specific temperature. CONSTITUTION:An antistatic coating 2 formed on the panel surface of a cathode-ray tube 1 is formed in the following way. Fine transparent grains having electrical conductivity e.g., (a) SnO2, (b) In2O3, (c) Sb2O3, and mixture thereof, i.e. fine grains of any one of (a), (b), (a+b), (a+b+c), (a+c) and (b+c) are sufficiently well mixed into an alcoholic solution of alkyl silicate Si-(OR), (R: alkyl group) to produce a solution. While the cathode ray tube 1 is rotated at a speed of 100rpm with the panel surface upward, this solution is dropped on the panel surface and when the solution has been spread all over the surface, the rotating speed is increased to 500rpm to coat the surface thinly and uniformly with the solution, then, after heating and drying thereof at a temperature less than 200 deg.C, e.g., at 105 deg.C, for about 10min, burning is effected at 160 deg.C for 30min to form the antistatic coating 2.

15. 发明专利

JPS6476001A ANTIREFLECTION FILM 失效
公开(公告)号：JPS6476001A
公开(公告)日：1989-03-22
申请号：JP23216387
申请日：1987-09-18
申请人： HITACHI LTD
发明人： OBARA KATSUMI , KAWAMURA HIROMITSU , KAWAMURA TAKAO
IPC分类号： G02B1/11 , G02B1/111
摘要： PURPOSE:To improve an antireflection effect by using a film which is formed by adhering the fine particles of MgF2 coated on an SiO2 film formed by a special stage to glass and has fine ruggedness on the surface. CONSTITUTION:A soln. prepd. by adding and dispersing the fine particles of MgF2 sized within a 0.01-1mum range in an alcohol soln. of Si(OR)4 (R is an alkyl group) is coated on the surface of a glass plate 1 and is calcined. The fine particles 2 of the MgF2 coated to the SiO2 film 3 formed in such a manner are adhered the glass plate 1 to form the fine ruggedness on the surface of the film. The film formed in such a manner is used. Not only the antidazzling property by diffuse reflection is thereby obtd. but also the quantity of the reflected light itself is decreased.

16. 发明专利

JPS6372028A MANUFACTURE OF CATHODE-RAY TUBE 失效
公开(公告)号：JPS6372028A
公开(公告)日：1988-04-01
申请号：JP21383386
申请日：1986-09-12
申请人： HITACHI LTD
发明人： KAWAMURA HIROMITSU , OBARA KATSUMI
IPC分类号： H01J9/20 , H01J29/88
摘要： PURPOSE:To obtain an excellent glare-resisting performance and a high-contrast image at a low cost by spraying the surface of a front panel with an alcohol solution consisting of Si metallic alcoxide and the metallic alcoxide having coloring function and thereafter firing this panel at a specific temperature. CONSTITUTION:An outer surface of a front panel is sprayed with alcohol solution of a mixture consisting of Si(OR)4 as metallic alcoxide end consisting of at least one or more kinds of, for example, Co(OR)2, Mn(OR)2, Ni(OR)2, Fe(OR)3, Ce(OR)3, etc. as metallic alcoxide having coloring function, and thereafter the panel is fired at 250 deg.C to 80 deg.C. Thus a part of metallic alcoxide remains on the outer surface of the front panel, and both transparent and colored recessed/projected parts are formed there. Furthermore HNO3 is added as catalyst to the alcohol solution in order to improve film adhesion strength.

17. 发明专利

JPS6365477A DISPLAY DEVICE 失效
公开(公告)号：JPS6365477A
公开(公告)日：1988-03-24
申请号：JP20948786
申请日：1986-09-08
申请人： HITACHI LTD
发明人： KAWAMURA HIROMITSU , OBARA KATSUMI , SUZUKI HIROSHI
IPC分类号： G09F9/00

18. 发明专利

JPS62136740A CATHODE-RAY TUBE HAVING SCREEN APPLIED WITH NON-REFLECTION PROCESSING 失效
公开(公告)号：JPS62136740A
公开(公告)日：1987-06-19
申请号：JP27670185
申请日：1985-12-11
申请人： HITACHI LTD
发明人： KAWAMURA HIROMITSU , OBARA KATSUMI
IPC分类号： H01J29/88 , H01J29/89
摘要： PURPOSE:To facilitate non-reflection processing on the surface of CRT by applying a coating onto the outside face of a plate glass while combining the thickness of a specific metal or a metal oxide film and a refractive index such that the lowest reflection can be achieved within predetermined wavelength range of a reflected light. CONSTITUTION:In a picture tube 1, a plate glass 4 is fixed through an organic adhesive 3 onto the surface 2' of a panel glass 2 and a complex layer 5 applied with non- reflection processing is formed onto the surface. Said layer 5 is formed by applying an organic silicate or an alcohol solution of alkoxide Si(OR)4 through a spinner onto the outer face of a glass 4, for example. Then it is burnt for predetermined time, and applied with hydrolysis and polymerization through the function of the water in the air or previously added water and an acid catalyst, then a thin transparent glass film mainly composed of SiO2 is applied. Assuming lambda0 is the wavelength of light and (n) is the refractive index of the thin film, the lowest reflection is achieved when (nd) is lambda0/4, thereby the thickness of the film is determined so as to satisfy said relation. In addition, Mg, Th, Ce, Al, Ti, Zr, La, Pr, Sb, Nd, or Zn may be employed in place of Si.

19. 发明专利

JPS62131450A CATHODE-RAY TUBE 失效
公开(公告)号：JPS62131450A
公开(公告)日：1987-06-13
申请号：JP27141085
申请日：1985-12-04
申请人： HITACHI LTD
发明人： KAWAMURA HIROMITSU , SUZUKI HIROSHI , MISUMI AKIRA , OBARA KATSUMI , SAITO AKIO
IPC分类号： H01J29/86 , H01J29/89
摘要： PURPOSE:To manufacture a cathode-ray tube whose display is easily seen even in the irradiation of external light, through a manufacturing means easily controllable and appropriate for mass production, by providing the outside surface of the faceplate of the cathode-ray tube with numerous holes of prescribed dimensions and form. CONSTITUTION:The outside surface of the faceplate of a cathode-ray tube is provided with a glass layer having holes which are continuously adjacent to each other and have a depth of 50Angstrom -3mu and an outermost diameter or pitch of 100-2,000Angstrom and whose diameter gradually decreases from the top toward the bottom thereof. The glass layer having the holes of prescribed form and dimensions may be either integrally provided in the faceplate of the tube or previously provided in a glass plate which is stuck to the faceplate by an organic adhesive whose refractive index is almost equal to that of glass.

20. 发明专利

JPS61290622A MANUFACTURE OF CATHODE-RAY TUBE 失效
公开(公告)号：JPS61290622A
公开(公告)日：1986-12-20
申请号：JP13170185
申请日：1985-06-19
申请人： HITACHI LTD
发明人： OBARA KATSUMI , KAWAMURA HIROMITSU
IPC分类号： H01J29/88 , H01J9/20 , H01J29/89
摘要： PURPOSE:To obtain a highly reliable cathode-ray tube with a picture easy to see while having a full non-glare effect by forming an SiO2 film while spraying Si(OR)4 followed by adding a processing to remove the surface layer part of said film. CONSTITUTION:A film 3 having minute unevenness of transparent SiO2 is formed on the outer surface 21 of the face plate 2 of a cathode-ray tube 1. Said film 3 is formed so as to cover an effective face of the fluorescent surface 4 formed inside the face plate 2. Said forming methode is as follows: Firstly, 1% of HNO3 is added to an ethanol solution of Si(OC2H5)4 as a catalyzer for being applied to the outer surface 21 of the face plate preheated up to about 40 deg.C by spraying with a spray nozzle in order to make the outer surface 21 coarse. Next, said cathode-ray tube 1 is given the heat treatment at about 150 deg.C to firmly bond the SiO2 film thereon. Thereafter, the whole surface of said film is evenly rubbed by a felt made of stainless steel.

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