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1. 发明专利

JPH06254764A REGENERATING METHOD FOR POLISHING LIQUID 失效
公开(公告)号：JPH06254764A
公开(公告)日：1994-09-13
申请号：JP6763993
申请日：1993-03-03
申请人： ASAHI GLASS CO LTD
发明人： TAKENAKA ATSUYOSHI , TAKAKUSA TOSHIHARU , SUGIZAKI MASUO
IPC分类号： B24B57/02
摘要： PURPOSE:To perform the effective regeneration of polishing liquid by a method wherein an electrolytic material is added in the polishing liquid to dissolve a polished removed fundamental component, polishing grains in the polishing liquid are settled to separate the fundamental component from a polishing grain component. CONSTITUTION:In the regeneration of polishing liquid used for polishing of a glass base substance and a ceramics base substance, especially a glass base substance and a ceramics base substance containing an Si component and/or an Al component, by first adding an electrolytic material, such as an electrolytic material made of alkali, an alkali hydroxide metal or an alkali carbonate metal, in the polishing liquid, a polished removed base substance component is brought into a dissolved state and polishing grains in the polishing liquid are settled. This method causes separation of a base substance component in the polishing liquid from a polishing grain component therein and removal of the base substance component in the polishing liquid through removal of supernatant liquid in which the base substance component is dissolved. Secondly, fresh water is added and liquid on the side where the fresh water is added is used as polishing liquid.

2. 发明专利

JPS58140732A DISTINCTLY VISIBLE SCREEN AND ITS ARRANGING METHOD 失效
公开(公告)号：JPS58140732A
公开(公告)日：1983-08-20
申请号：JP2211082
申请日：1982-02-16
申请人： ASAHI GLASS CO LTD
发明人： TAKATSUKA TOYOMITSU , TAKAKUSA TOSHIHARU , TAKEHARA MIKIO
IPC分类号： A63J1/02 , G03B21/56 , G03B21/62
摘要： PURPOSE:To eliminate disturbance light, and to prevent a drop of contrast, by utilizing a directional pattern of a distinctly visible screen having a specified directional pattern, and specifying its arrangement. CONSTITUTION:An irregular reflected light distribution in the longitudinal direction of a distinctly visible screen is sharp and ''0'' degree

3. 发明专利

JPS5356965A PANEL DISPLAY UNIT SUBSTRATE 失效
公开(公告)号：JPS5356965A
公开(公告)日：1978-05-23
申请号：JP13125676
申请日：1976-11-02
申请人： ASAHI GLASS CO LTD
发明人： AKIYOSHI KAZUYUKI , TAKATSUKA TOYOMITSU , TAKAKUSA TOSHIHARU
IPC分类号： H01J17/02 , H01J17/16 , H01J17/48

4. 发明专利

JPH07116964A GLASS PLATE POLISHING PAD 失效
公开(公告)号：JPH07116964A
公开(公告)日：1995-05-09
申请号：JP27970193
申请日：1993-11-09
申请人： ASAHI GLASS CO LTD
发明人： ISEDA TORU , TAKAKUSA TOSHIHARU
IPC分类号： B24D11/00 , B24D11/02
摘要： PURPOSE:To obtain the surface of a glass plate which is little in undulation, and shallow and little in a flaw and a microcrack through a little quantity of polishing by specifying the hardness of a high hardness layer which functions as a surface layer for polishing and has an impregated abrasive grain. CONSTITUTION:A glass plate polishing pad has a soft layer 3 stuck to a high hardness layer 1 through a pressure sensitive adhesive double coated tape. The hardness of the high hardness layer 1 is set up to be more than Hs 90 in a hardness test (A type) prescribed by JIS:K6301. In addition, the hardness of the soft layer 3 serving as the backside of the high hardness layer 1 is set up to be less than 80 in a hardness test prescribed by JIS:S6050. The thickness of the high hardness layer 1 and of the soft layer 3 is set up to be 0.5 to 3mm or preferably 0.8 to 1.5mm, and the above thickness is desirable for the glass plate polishing pad to deform according to an irregular shape having a cycle larger than 50mm and not to deform according to the irregular shape having a small cycle being about 3 to 30mm.

5. 发明专利

JPH0770553A ABRASIVE FLUID AND GRINDING OF SUBSTRATE THEREWITH 失效
公开(公告)号：JPH0770553A
公开(公告)日：1995-03-14
申请号：JP21721093
申请日：1993-09-01
申请人： ASAHI GLASS CO LTD
发明人： TAKENAKA ATSUYOSHI , TAKAKUSA TOSHIHARU , HACHIUMA SUSUMU , SUGIZAKI MASUO
IPC分类号： B24B37/00 , C09K3/14
摘要： PURPOSE:To provide a new abrasive fluid which can keep its initial grinding speed for a long time in grinding, e.g. a glass substrate containing aluminum and to provide the method of grinding the substrate therewith. CONSTITUTION:An organic acid and/or a chelating agent each of which can form a complex with aluminum are added to a common abrasive fluid to much the aluminum component to thereby improve the dispersibility of the abrasive grains.

6. 发明专利

JPS6340734A FORMATION OF THROUGH-HOLE ON GLASS PLATE 失效
公开(公告)号：JPS6340734A
公开(公告)日：1988-02-22
申请号：JP18007786
申请日：1986-08-01
申请人： ASAHI GLASS CO LTD
发明人： TAKAKUSA TOSHIHARU
IPC分类号： C03C15/00 , C03B23/00 , C03B33/00
摘要： PURPOSE:To obtain a glass plate having many through-holes little in the variance of pore diameter by photoetching the glass plate wherein wettability is enhanced by using a surface active agent. CONSTITUTION:The wettability of a glass plate 1 is enhanced by immersing the glass plate 1 having 0.1-0.5mm thickness wherein photoresist layers 2 are formed on all surfaces excepting exposed parts 3, where through-holes 4 are formed, into an aq. soln. contg. 0.0001-10wt% fluorine-base surface active agent. Then many fine through-holes 4 are formed on the glass plate 1 by immersing this glass plate 1 into etching liquid contg. hydrofluoric acid and ammonium fluoride or the like.

7. 发明专利

JPS6184527A Optical sensor 失效
标题翻译：光传感器
公开(公告)号：JPS6184527A
公开(公告)日：1986-04-30
申请号：JP20562084
申请日：1984-10-02
申请人： Asahi Glass Co Ltd
发明人： TAKATSUKA TOYOMITSU , TAKEHARA MIKIO , TAKAKUSA TOSHIHARU
IPC分类号： G01J1/02
摘要： PURPOSE: To obtain an uniform sensor output by correcting the nonuniformity of the light quantity on an optical sensor caused by an optical lens with varying the element area of a photodetector.
CONSTITUTION: An optical sensor 1 is formed with juxtaposing plural photodetectors 3 and is made to receive the fields A-B through an optical lens and to produce the image A'-B' on the detecting face of the optical sensor 1. The photodetector 3 is a photoelectric element to output with converting into an electric signal according to the light quantity of the image, having a respective element space S. Each photodetector converts the space S so as to make Q×S constant according to the light quantity of the image produced by the optical lens 2 in all zones on the optical sensor 1.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过改变由光电检测器的元件面积改变的光学透镜引起的光学传感器上的光量的不均匀性来获得均匀的传感器输出。构成：光学传感器1与多个光电检测器3并置形成，并通过光学透镜接收场AB，并在光学传感器1的检测面上产生图像A'-B'。光检测器3是光电元件根据图像的光量转换为电信号，具有各自的元件空间S.每个光电检测器转换空间S，以使QXS根据光学产生的图像的光量恒定透镜2在光学传感器1上的所有区域中。

8. 发明专利

JPH07290366A METAL BOND GRINDING WHEEL 失效
公开(公告)号：JPH07290366A
公开(公告)日：1995-11-07
申请号：JP8475894
申请日：1994-04-22
申请人： ASAHI GLASS CO LTD
发明人： TAKAKUSA TOSHIHARU , ISEDA TORU , ITO MASABUMI
IPC分类号： B24D3/00 , B24D3/06
摘要： PURPOSE:To remarkably reduce the load fluctuation at the time of grinding, extremely reduce dressing, and improve the availability factor by flattening the tip sections of exposed abrasive grains, and specifying the concentration of the abrasive grains. CONSTITUTION:The content of abrasive grains in a grinding wheel, i.e., concentration specified by JIS-B 4131, is set to 1-20. The tip sections of the abrasive grains exposed on the surface of the grinding wheel are flattened. The flattened portion of the abrasive grains is preferably set to about 30% or more of the cumulative area. When the flattened portion is less than about 30% of the cumulative area, the roughness of the grinding surface of a work becomes too rough, the abrasive grains are abraded, and the frequency of dressing is nonpreferably increased.

9. 发明专利

JPH0768469A SHEET FOR GRINDING GLASS PLATE 失效
公开(公告)号：JPH0768469A
公开(公告)日：1995-03-14
申请号：JP21970193
申请日：1993-09-03
申请人： ASAHI GLASS CO LTD
发明人： ISEDA TORU , TAKAKUSA TOSHIHARU
IPC分类号： B24D11/00 , B24D11/02
摘要： PURPOSE:To provide a surface of a glass plate where there is little undulation and damages and micro-cracks are shallow and few by laminating a hard sheet for grinding made of the organic resin containing diamond powder of the specified mean grain size as the surface layer for the grinding and a soft sheet with the cushioning quality as the layer of the rear surface. CONSTITUTION:A hard sheet 3 for grinding made of the organic resin containing diamond powder is laminated on a soft sheet 1 with an adhesive layer 2 to make the desired sheet for grinding. The diamond powder of fine grain size where the mean grain size is 3mum or under is used. If the diamond powder whose mean grain size is >=4mum is used. micro-cracks of >=1mum in depth are likely to be generated in the surface of the glass plate, and to remove this, further grinding of several mum becomes unpreferably necessary. The grain size of 0.1-2mum is more preferable to increase the working and removing speed and to make it difficult to increase the depth of micro-cracks.

10. 发明专利

JPS63160013A PRODUCTION OF SUBSTRATE FOR MAGNETIC DISK 失效
公开(公告)号：JPS63160013A
公开(公告)日：1988-07-02
申请号：JP30542186
申请日：1986-12-23
申请人： ASAHI GLASS CO LTD
发明人： KOBAYASHI TAKAYUKI , TAKAKUSA TOSHIHARU , KIJIMA SHUN , OGATA HIROSHI
IPC分类号： G11B5/82 , G11B5/73 , G11B5/84
摘要： PURPOSE:To improve a CSS characteristic and head stick characteristic by bringing a glass stock sheet into contact with the vapor of hydrofluoric acid, then subjecting the sheet to a chemical treatment using an aq. soln. contg. potassium fluoride and hydrofluoric acid, thereby providing ruggedness on the surface. CONSTITUTION:The glass disk stock sheet is cleaned by a neutral detergent, is rinsed with ion exchange water and is then dried. Such stock sheet is brought into contact with the hydrofluoric acid vapor atmosphere on the liquid surface of an aq. hydrofluoric acid soln.; thereafter, the sheet is subjected to the chemical etching treatment by using the aq. soln. contg. the prescribed concn. of the potassium fluoride and hydrofluoric acid, by which the ruggedness is formed on the surface of the stock sheet. A magnetic film of Co system is formed by a sputtering method on such substrate and a carbon protective film is formed thereon to decreased the attraction characteristic to be generated between a head and medium. The contact start-stop CSS resistance characteristic and head stick characteristic are thereby improved.

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