公开(公告)号：JP2572444B2

公开(公告)日：1997-01-16

申请号：JP13809389

申请日：1989-05-31

Applicant: HOYA CORP

Inventor： MAEDA NOBUHIRO ,  SAGAWA FUMIHIKO ,  KARYA HIROYUKI ,  MAEDA TOSHIO

IPC: C03B17/06

公开(公告)号：JPH05124827A

公开(公告)日：1993-05-21

申请号：JP28690891

申请日：1991-10-31

Applicant: HOYA CORP ,  NIPPON SHEET GLASS CO LTD

Inventor： MAEDA NOBUHIRO ,  KARIYA HIROYUKI ,  HOSHINO KAZUHIKO

IPC: C03B17/06

Abstract: PURPOSE:To prevent the uniform part of thickness in width direction of a glass plate from being diminished by molding molten glass into a plate and pulling the obtained glass plate down via a cooler by tension rollers. CONSTITUTION:Homogeneous molten glass 3 is supplied to the recessed part 2a of a molded body 2, overflowed and allowed to fall down on the surface 2b and the rear 2c of the molded body 2 from the slitlike opening of the upside of the recessed part 2a and then joined in the lower end part of the molded body 2 to obtain a glass plate 4. After the edge parts of both sides of this glass plate 4 are cooled by a cooler 5 provided via the space for the glass plate 4, the glass plate 4 is pulled down by a pair of tension rollers 11.

公开(公告)号：JPH02149438A

公开(公告)日：1990-06-08

申请号：JP30301788

申请日：1988-11-30

Applicant: HOYA CORP

Inventor： SAGAWA FUMIHIKO ,  MAEDA NOBUHIRO ,  KARIYA HIROYUKI

IPC: C03B17/06

Abstract: PURPOSE:To eliminate the temp. unevenness in the forming atmosphere and to obtain the glass plate of uniform thickness distribution by providing the unit sending preheat air from above a forming body to the vicinity of the forming body and pulling down the plate type glass while it is being cooled. CONSTITUTION:A molten glass supply pipe 3 is connected with the recessed part 2a of the forming body 2. The molten glass 4 supplied to the recessed part 2a from the molten glass supply pipe 3 is overflowed from a slit type opening of the upper part of the recessed part 2a, flowed down along both side surface of the forming body 2, and joined together at the lower end part of the forming body 2. The confluent molten glass 4 is cooled into glass plate 4' and pulled down by a pair of tension rollers 5 revolvingly driven. The unit sending preheat air as the forming atmosphere 1a is provided above the forming body 2. This preheat air keeps the forming atmosphere 1a in high temp., and prevents the air ascending by convection as shown by arrow 11 from flowing into the forming atmosphere 1a by keeping the pressure in the furnace chamber to be positive, where the furnace chamber means the inner chamber enclosed by furnace walls 1.

公开(公告)号：JP2012001390A

公开(公告)日：2012-01-05

申请号：JP2010137505

申请日：2010-06-16

Applicant: Hoya Corp ,  Hoya株式会社

Inventor： MAEDA NOBUHIRO ,  UCHIDA KAZUYA ,  WATANABE YOSHIHARU ,  OGUMA MAGONORI

IPC: C03B19/02 ,  C03B11/00

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a glass plate by which inward creasing and the generation of a nonuniform woody texture pattern are prevented without causing fusion of glass to a casting mold, so that a high-quality glass plate with a uniform thickness and small warpage is stably molded; and to provide methods for manufacturing a glass material for press molding, an optical element and a thin sheet glass using such a glass plate.SOLUTION: The method for manufacturing a glass plate includes: continuously casting molten glass flowing out of an orifice into a casting mold having a pair of opposed side walls which define the width of a glass plate, and a bottom part having a surface (a top surface) which forms one of opposed two principal surfaces of a glass plate; and continuously molding a flat glass plate while moving the cast glass along both the side walls in one direction (a molding direction) from the upstream side to the downstream side. The casting of the molten glass and the molding to the flat plate shape are carried out while locally cooling, when the top surface is viewed from above, a position of the top surface directly below the orifice and a region which extends from the position directly below the orifice in the molding direction and the width of which increases discontinuously or continuously toward the downstream side.

Abstract translation: 解决问题的方案：提供一种制造玻璃板的方法，通过该方法可以防止向内折痕和不均匀的木质纹理图案的产生，而不会导致玻璃与铸模的熔合，从而使高质量的玻璃板 具有均匀的厚度和小的翘曲稳定地模制; 并提供使用这种玻璃板制造用于压制成型的玻璃材料，光学元件和薄板玻璃的方法。 解决方案：制造玻璃板的方法包括：将从孔中流出的熔融玻璃连续铸造到具有限定玻璃板宽度的一对相对的侧壁的铸模中，以及具有表面的底部 （顶面），其形成玻璃板的相对的两个主表面之一; 并且在从上游侧向下游侧沿一个方向（成型方向）沿两侧壁移动铸造玻璃的同时连续成型平板玻璃板。 熔融玻璃的铸造和平板形状的铸造在局部冷却的同时进行，当从上方观察顶表面时，直接在孔的下方的顶表面的位置和从正下方的位置延伸的区域 模制方向上的孔口和其宽度向下游侧不连续地或连续地增加。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012001389A

公开(公告)日：2012-01-05

申请号：JP2010137502

申请日：2010-06-16

Applicant: Hoya Corp ,  Hoya株式会社

Inventor： MAEDA NOBUHIRO ,  UCHIDA KAZUYA ,  WATANABE YOSHIHARU ,  OGUMA MAGONORI

IPC: C03B17/06 ,  G02B3/00

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a glass plate by which inward creasing and the generation of a nonuniform woody texture pattern are prevented without causing fusion of glass to a casting mold, so that a high-quality glass plate with a uniform thickness and small warpage is stably molded.SOLUTION: The method for manufacturing a glass plate includes: continuously casting molten glass 2 flowing out of an orifice 3 into a casting mold 1 having a pair of opposed side walls 11, 11' which define the width of a glass plate, and a bottom part 13 having a surface (called a top surface) which forms one of opposed two principal surfaces of a glass plate; and continuously molding a flat glass plate while moving the cast glass 2 along both the side walls 11, 11' in one direction (called a molding direction) from the upstream side to the downstream side. The casting of the molten glass 2 and the molding to the flat plate shape are carried out while locally cooling, when the top surface is viewed from above, a position of the top surface directly below the orifice 3 and a region which extends from the position directly below the orifice 3 in the molding direction and has much the same width.

Abstract translation: 解决问题的方案：提供一种制造玻璃板的方法，通过该方法可以防止向内折痕和不均匀的木质纹理图案的产生，而不会导致玻璃与铸模的熔合，从而使高质量的玻璃板 具有均匀的厚度和小的翘曲稳定地模制。 解决方案：制造玻璃板的方法包括：将从孔3流出的熔融玻璃2连续铸造成具有限定玻璃板宽度的一对相对侧壁11,11'的铸模1， 和具有形成玻璃板的相对的两个主表面之一的表面（称为顶面）的底部13; 并且在从上游侧向下游侧沿两个侧壁11,11'沿一个方向（称为成型方向）移动铸造玻璃2的同时连续地成型平板玻璃板。 熔融玻璃2的铸造和平板形状的铸造在局部冷却的同时进行，当从上方观察顶表面时，直接在孔3的下方的顶表面的位置和从该位置延伸的区域 在模制方向上直接在孔口3的下面，具有大致相同的宽度。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011111368A

公开(公告)日：2011-06-09

申请号：JP2009269806

申请日：2009-11-27

Applicant: Hoya Corp ,  Hoya株式会社

Inventor： MAEDA NOBUHIRO ,  UCHIDA KAZUYA ,  FUJIMOTO MAMORU ,  SATO TAKASHI

IPC: C03B11/00 ,  C03B11/08 ,  G11B5/84

CPC classification number: C03B11/088

Abstract: PROBLEM TO BE SOLVED: To obtain a glass blank having higher flatness even when the thinner glass blank is produced. SOLUTION: There are provided a method for producing the glass blank where the glass blank for an information recording medium is produced at least via a pressing step to press-mold softened glass between an upper die and a lower die after supplying the softened glass on the center of the pressing surface of the lower die and where the temperature in the vicinity of the center of the pressing surface of the upper die just before performing the pressing step is lower than that in another area on the pressing surface of the upper die, the upper die and a press-molding apparatus used in the method, a method for producing a substrate for the information recording medium using the apparatus and a method for producing the information recording medium. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：即使制造较薄的玻璃坯料，获得具有较高平整度的玻璃坯料。 解决方案：提供一种玻璃坯料的制造方法，其中至少通过压制步骤制造用于信息记录介质的玻璃坯料，以在供给软化的玻璃坯料之后在上模和下模之间挤压软化玻璃 在下模的按压表面的中心处的玻璃，并且刚好在执行挤压步骤之前在上模的按压表面的中心附近的温度低于在上模的按压表面上的另一区域中的温度 模具，上模和在该方法中使用的加压成型装置，使用该装置的信息记录介质的基板的制造方法和信息记录介质的制造方法。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010205354A

公开(公告)日：2010-09-16

申请号：JP2009051452

申请日：2009-03-05

Applicant: Hoya Corp ,  Hoya株式会社

Inventor： MAEDA NOBUHIRO

IPC: G11B5/84 ,  C03B11/00 ,  G11B5/73

CPC classification number: C03B11/088

Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method which suppresses adhesion of glass to an upper die during pressing even when a thinner glass blank is produced, and to provide a device which implements the method. SOLUTION: The glass blank manufacturing method includes a glass supply step of supplying softened glass onto a press surface of a lower die, an agglomerate glass-cooling step of cooling the glass agglomerated on the press surface by contacting a cooling member to a center portion of an upper surface of the agglomerated glass, and a press step of pressing the agglomerated glass using the upper and lower dies immediately after the agglomerated glass cooling step, to produce a glass blank satisfying 0.01≤t/d≤0.02 (wherein, t represents a thickness (mm) of the glass blank, and d represents a diameter (mm) of the glass blank). Note that a press forming device is a device which implements the manufacturing method, and a method for manufacturing a substrate for an information recording medium and a method for manufacturing an information recording medium are each a method which utilizes the manufacturing method. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种制造方法，即使在制造较薄的玻璃坯料时也能抑制玻璃对上模的粘合，并提供实现该方法的装置。 解决方案：玻璃坯料的制造方法包括将软化玻璃供给到下模的压制面上的玻璃供给工序，通过使冷却部件与冷却部件接触来冷却凝聚在压制面上的玻璃的附聚玻璃冷却工序 凝聚玻璃的上表面的中心部分，并且在凝聚玻璃冷却步骤之后立即使用上模和下模冲压凝聚玻璃的压制步骤，以制备满足0.01≤t/d≤0.02的玻璃坯料（其中， t表示玻璃坯料的厚度（mm），d表示玻璃坯料的直径（mm）。 注意，压制成型装置是实现制造方法的装置，以及用于制造信息记录介质的基板的方法和用于制造信息记录介质的方法各自是利用该制造方法的方法。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2005213109A

公开(公告)日：2005-08-11

申请号：JP2004023662

申请日：2004-01-30

Applicant: Hoya Corp ,  Hoya株式会社

Inventor： MAEDA NOBUHIRO ,  UCHIDA KAZUYA

IPC: C03B33/037 ,  C03B11/00 ,  C03B17/06 ,  C03B23/02

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a plurality of glass raw materials for press forming, which have high weight precision and high quality, by introducing continuously melted glass into a fixed die and extruding a glass plate from one end of the die and cutting it efficiently. SOLUTION: The method for producing the glass raw materials for press forming comprises introducing continuously the melted glass into the fixed die and extruding the glass plate having a constant thickness and having such a width as controlled by the die from one end of the die to give the glass plate and cutting it into a plurality of the glass raw materials for press forming. In the method, the glass plate is cut in the vertical direction against the width direction, and almost all glass plates are partitioned into a plurality of longitudinal articles, wherein cutting is conducted in such a way as capable of producing at least one group of a plurality of the longitudinal glass materials having the same cross-cut surface area with one another against the extruding direction. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 解决的问题：为了提供一种制造多个重量精度高，质量高的用于冲压成形的玻璃原料的方法，通过将连续熔融的玻璃引入固定模具中并从一端挤出玻璃板 的模具和切割它有效。 解决方案：用于压制成型的玻璃原料的制造方法包括将熔融的玻璃连续引入固定模具中，并挤出具有恒定厚度并且具有由模具控制的宽度的玻璃板， 模具，将玻璃板切割成多个用于冲压成形的玻璃原料。 在该方法中，相对于宽度方向在垂直方向上切割玻璃板，并且几乎所有的玻璃板被分隔成多个纵向制品，其中切割是以能够产生至少一组 多个纵向玻璃材料具有相对于挤压方向彼此相同的横切面积。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2004345916A

公开(公告)日：2004-12-09

申请号：JP2003146325

申请日：2003-05-23

Applicant: Hoya Corp ,  Hoya株式会社

Inventor： MAEDA NOBUHIRO ,  UCHIDA KAZUYA

IPC: C03B23/00 ,  C03B25/00 ,  C03B25/06 ,  C03B29/00 ,  C03B35/00

CPC classification number: C03B25/06

Abstract: PROBLEM TO BE SOLVED: To provide a method for efficiently heating glass, a method for annealing glass, a method for manufacturing a glass molding, and a heat treatment apparatus.
SOLUTION: In the method for annealing or heating a glass article, the glass article is annealed or heated by transporting the glass article sequentially inside a plurality of heat treatment chambers 13 each communicating with adjacent chambers through respective openings. In the method for manufacturing the glass molding, molten glass, or the like, is molded and the obtained glass molding is annealed by transporting the glass molding sequentially inside the plurality of the heat treatment chambers 13 through respective openings. In the method for manufacturing the glass article, the glass article is heated and softened by transporting the glass article sequentially inside the plurality of the heat treatment chambers through respective openings and molding the softened glass article. The adjacent heat treatment chambers are mutually heat insulated by heat insulating walls 14 and the atmospheric temperature of each chamber is independently set. The heat treatment apparatus 10 has a tunnel type furnace 11 and a transporting device for transporting the article along the inside of the furnace 11, and is used for heat treating the article introduced from the outside of the furnace while transporting the article through the inside of the furnace 11. The heat treatment apparatus 10 has the heat insulating walls 14 for partitioning the inside of the furnace 11 into the plurality of the heat treatment chambers 13 in the direction to transport the article so as not to disturb the transport of the article, and atmosphere temperature setting units.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种高效加热玻璃的方法，玻璃退火方法，玻璃成型制造方法和热处理装置。 解决方案：在玻璃制品的退火或加热方法中，玻璃制品通过在多个热处理室13内依次传送玻璃制品进行退火或加热，每个热处理室13通过相应的开口连通相邻的室。 在制造玻璃成型体的熔融玻璃等的制造方法中，通过各自的开口在多个热处理室13内依次输送玻璃成形体，对得到的玻璃成形体进行退火。 在制造玻璃制品的方法中，玻璃制品通过相应的开口在多个热处理室内依次传送玻璃制品并加热并软化，并模制软化的玻璃制品。 相邻的热处理室由绝热壁14相互隔热，并且各室的大气温度被独立地设定。 热处理装置10具有隧道式炉11和用于沿炉内部输送物品的输送装置，并且用于对从炉外引入的物品进行热处理，同时将制品运送到炉内 热处理装置10具有隔热壁14，用于将炉11的内部沿着输送物品的方向分隔成多个热处理室13，以不干扰物品的运送， 和气氛温度设定单位。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JPH1110591A

公开(公告)日：1999-01-19

申请号：JP17650397

申请日：1997-06-17

Applicant: HOYA CORP

Inventor： MAEDA NOBUHIRO ,  UCHIDA KAZUYA

IPC: B26D5/26 ,  C03B33/023

Abstract: PROBLEM TO BE SOLVED: To cut a sheet-like continuous material always at right angles or at a fixed angle by using servo motors having a function of varying the magnification of a command pulse to an input pulse for the drive of an advancing sheet-like continuous. material and the drive of an advancing cutter, respectively, and electrically synchronizing the motors with each other. SOLUTION: When the advancing speeds of a sheet-like continuous material and a cutter are taken to be V, v, and the angle made among the advancing direction of the sheet-like continuous material, the right-angled direction and the advancing direction of the cutter is taken to be θ, at the time of cutting the sheet-like continuous material 1 at right angles, the relation is expressed by V=vsinθ. The diameter of a driving feed roller 3 for the sheet-like continuous material is equal to the diameter of a cutter driving pulley 6, the command pulse magnification of the servo motors 2, 4 for driving the sheet-like continuous material and the cutter is set to 1, 1/sinθ, and the respective servo motors 2, 4 are wired in parallel to the input pulse. By this arrangement, even if the advancing speed of the sheet-like material is changed or varied, the sheet-like continuous material 1 can be cut always at right angles.