公开(公告)号：JPH1071312A

公开(公告)日：1998-03-17

申请号：JP24884396

申请日：1996-08-30

Applicant: HOYA CORP

Inventor： OGAWA SHINICHI ,  MAEDA NOBUHIRO

IPC: B01D39/14 ,  B01J35/02

Abstract: PROBLEM TO BE SOLVED: To manufacture a highly efficient filter at a low cost by providing filter materials by forming projected parts on the surface of fibrous or platelike filter substrates and bundling or layering these filter materials. SOLUTION: Fibrous, platelike, rod-like ceramics, glass, etc., are used as filter substrates. Projected parts are formed on the surface of such filter substrates by applying ceramic or glass materials formed into a granular shape or amorphous state to the surface of the filter substrates and fixing the materials to give filter materials. Furthermore, a highly efficient filter is obtained by using such filter materials which bear the projected parts on the surface or depositing a catalyst on the filter materials and bundling or layering such filter materials. Since the filter has voids attributed to the projected parts, the stable function is retained for a long duration.

公开(公告)号：JP2556567B2

公开(公告)日：1996-11-20

申请号：JP30301688

申请日：1988-11-30

Applicant: HOYA CORP

Inventor： MAEDA NOBUHIRO ,  SAGAWA FUMIHIKO ,  KARYA HIROYUKI

IPC: C03B17/06

公开(公告)号：JPH05163032A

公开(公告)日：1993-06-29

申请号：JP32617491

申请日：1991-12-10

Applicant: HOYA CORP ,  NIPPON SHEET GLASS CO LTD

Inventor： HORIKAWA SUSUMU ,  MAEDA NOBUHIRO ,  KARIYA HIROYUKI ,  UCHIDA KAZUYA ,  ENDO SHIGEAKI ,  HOSHINO KAZUHIKO

IPC: C03B17/06

Abstract: PURPOSE:To provide an apparatus capable of producing glass plate having extremely small warpage and nonuniform thickness distribution (uneven thickness). CONSTITUTION:The subject production apparatus is composed of a forming oven 11 and a forming member 2 placed in the forming oven and having nearly wedge-shaped cross-section. Molten glass 3 is flowed down from the top 10 of the forming member along the front and rear faces of the member and both molten glass flows are joined together at the lower end of the forming member to form a glass plate 3A. Hollow shielding plates 4 are placed at both sides of the glass plate 3A under the forming member 2 in a state parallel and close to the glass plate 3A. A plural sets of the hollow shielding plates 4 are vertically arranged.

公开(公告)号：JPH02149486A

公开(公告)日：1990-06-08

申请号：JP30301888

申请日：1988-11-30

Applicant: HOYA CORP

Inventor： KARIYA HIROYUKI ,  MAEDA NOBUHIRO ,  SAGAWA FUMIHIKO

IPC: C04B41/88 ,  B23K20/00

Abstract: PURPOSE:To obtain a fireproof member having high shape accuracy and surface accuracy at the time of use even at a high temp. by cladding a fireproof material formed into a prescribed shape with a Pt or Pt alloy sheet and by adhering this cladding sheet to the fireproof material by heating while vacuum-sucking the air between them. CONSTITUTION:A fireproof material is formed into a prescribed shape and clad with a Pt or Pt alloy sheet. This cladding sheet is then adhered to the surface of the fireproof material by heating them to a temp. above the service temp. of the resulting fireproof member while keeping a vacuum state.

公开(公告)号：JP2012001391A

公开(公告)日：2012-01-05

申请号：JP2010137507

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 ,  C03B19/00

Abstract: PROBLEM TO BE SOLVED: To provide an apparatus for manufacturing a glass plate with 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 can stably be molded; a method for molding a glass plate; and methods for manufacturing a glass material for press molding and an optical element.SOLUTION: The apparatus for manufacturing a glass plate includes 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. The bottom part internally has at least two through-holes which are substantially perpendicular to the side walls and substantially parallel to the top surface, and the through-holes have openings in side faces of the bottom part connecting to the outer surfaces of the side walls. The apparatus includes a cooling medium supply pipe having at least one discharge port for discharging a cooling medium on the side face. The cooling medium supply pipe is disposed in such a way that it is put in and taken out of the through-holes and at least one discharge port is located in the through-hole. When the cooling medium supply pipe is disposed in the through-hole, a cooling medium discharged from the discharge port has such a size and/or shape that it can flow out of the opening to the outside of the through-hole.

Abstract translation: 要解决的问题：提供一种制造玻璃板的装置，其中可以防止向内折痕和产生不均匀的木质纹理图案，而不会导致玻璃与铸模的熔合，使得高品质的玻璃板 具有均匀的厚度和小的翘曲可以稳定地模制; 玻璃板的成型方法; 以及用于制造用于压制成型的玻璃材料和光学元件的方法。 解决方案：用于制造玻璃板的装置包括具有限定玻璃板的宽度的一对相对的侧壁的铸模和具有形成相对的两个之一的表面（顶表面）的底部 玻璃板的主表面。 底部内部具有至少两个基本上垂直于侧壁并且基本上平行于顶表面的通孔，并且通孔在底部的侧面中具有连接到侧壁的外表面的开口 。 该装置包括具有用于排出侧面上的冷却介质的至少一个排出口的冷却介质供给管。 冷却介质供给管被配置成使其被放入并从通孔中取出，并且至少一个排出口位于通孔中。 当冷却介质供给管设置在通孔中时，从排出口排出的冷却介质具有能够从开口流出到通孔外侧的尺寸和/或形状。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2010248010A

公开(公告)日：2010-11-04

申请号：JP2009096625

申请日：2009-04-13

Applicant: Hoya Corp ,  Hoya株式会社

Inventor： MAEDA NOBUHIRO

IPC: C03B11/00 ,  C03B11/12 ,  G11B5/84

CPC classification number: C03B11/088

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a glass blank for information recording medium substrate having high planarity even when manufacturing the glass blank which is thinner.
SOLUTION: There is provided the method for manufacturing the glass blank for information recording medium substrate through at least: a glass gob drawing process of pressing a glass gob in the softened state on a lower mold by means of an upper mold and the lower mold, and drawing the glass gob between two press surfaces; a stripping process of stripping a disk-shaped glass, which is completely drawn until completion and is left in the softened state in a state of being held between the two press surfaces, from the press surface of the upper mold; and a cooling process of substantially symmetrically cooling the neighborhood of outer peripheral edge of the disk-shaped glass in the softened state on the basis of the center part of the disk-shaped glass in the softened state at timings before and after performing the stripping process. A method for manufacturing a substrate for information recording medium and a method for manufacturing information recording medium using the method for manufacturing a glass blank for information recording medium are also provided.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 解决的问题：提供一种制造具有高平坦度的信息记录介质基板的玻璃坯料的方法，即使制造更薄的玻璃坯料也是如此。 解决方案：提供了一种用于信息记录介质基板的玻璃坯料的制造方法，该方法至少是：通过上模具在下模上将软化状态的玻璃料柱挤压的玻璃料滴拉拔工艺， 下模，并在两个压力表面之间拉制玻璃料滴; 汽提一个圆盘状玻璃的剥离过程，其完全被拉伸直到完成并且在保持在两个挤压表面之间的状态下处于软化状态，从上模的压制表面上剥离; 以及在执行剥离过程之前和之后的正时在软化状态下基于盘状玻璃的中心部分在软化状态下基本对称地冷却盘状玻璃的外围边缘附近的冷却过程 。 还提供了一种用于制造信息记录介质用基板的方法和使用该信息记录介质用玻璃坯料的制造方法制造信息记录介质的方法。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2009221089A

公开(公告)日：2009-10-01

申请号：JP2008070698

申请日：2008-03-19

Applicant: Hoya Corp ,  Hoya株式会社

Inventor： MAEDA NOBUHIRO

IPC: C03B11/00 ,  G11B5/84

CPC classification number: C03B11/088

Abstract: PROBLEM TO BE SOLVED: To provide a method for mass-producing glass blanks for substrates for information recording media; and to provide methods for manufacturing the substrates for information recording media and the information recording media.
SOLUTION: In press molding, a prescribed amount of glass gob in a softened state is pressed until the distance between the molding faces of a couple of pressing molds becomes a prescribed value. A couple of main surfaces and the outer peripheral face of a glass blank are formed by transferring the outer periphery-restricting face to the whole outer periphery of glass by extending the glass along opposing two molding faces of the pressing molds by pressing the glass gob. A thick part is formed at the outer edge of the glass blank by infiltrating the extended gas into a portion of a space for forming the thick part provided at the outer peripheral part of the molding face. The filling degree of the glass into the space for forming the thick part is changed in accordance with the variation of the amount of glass gob supplied at every press molding. The variation width of the amount of glass gob supplied at every press molding and the volume of the space for forming the thick part are set within a range that the thick part is formed, but the glass is not filled in an amount higher than the volume of the space for forming the thick part. The methods for manufacturing the substrates for the information recording media and the information recording media are also provided.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于批量生产用于信息记录介质的基板的玻璃坯料的方法; 并且提供用于制造用于信息记录介质和信息记录介质的基板的方法。 解决方案：在压制成型中，压制规定量的软化状态的玻璃料滴直到两个压模之间的距离成为规定值。 通过按压玻璃料滴使玻璃沿相对的两个成形面延伸，将外周限制面转移到玻璃的整个外周，形成玻璃坯料的一对主表面和外周面。 通过将延伸气体渗透到设置在成型面的外周部的厚部的空间的一部分中，在玻璃坯料的外缘形成厚的部分。 根据每次压制成型时供给的玻璃料块的量的变化，玻璃进入用于形成厚部的空间的填充度发生变化。 在每个压制成型时供给的玻璃料滴的量的变化宽度和形成厚部的空间的体积设定在形成厚部的范围内，但是玻璃的填充量不高于容积 的形成厚部分的空间。 还提供了用于制造用于信息记录介质和信息记录介质的基板的方法。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009149477A

公开(公告)日：2009-07-09

申请号：JP2007329859

申请日：2007-12-21

Applicant: Hoya Corp ,  Hoya株式会社

Inventor： MAEDA NOBUHIRO

IPC: C03B11/00 ,  C03B11/08 ,  G11B5/73 ,  G11B5/84

Abstract: PROBLEM TO BE SOLVED: To provide a method capable of obtaining a thin glass molded product with very little warpage without decreasing its production number in a direct pressing method, and an apparatus for manufacturing the thin glass molded product.
SOLUTION: The method is for manufacturing a thin glass by press-molding a molten glass gob fed on the shaping surface of a lower die for pressing with the shaping surface of an upper die for pressing which faces the lower die for pressing. For at least a part of time until the press-molded product is taken out from the shaping surface of the lower die after the upper die is removed from the press-molded product after press-molding, an upper die for cooling is put on the press-molded product so as to balance cooling conditions of the upper and lower surfaces of the press-molded product. The apparatus for manufacturing the thin glass is equipped with an upper die for pressing and an upper die for cooling.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够获得在直接压制方法中不降低其生产数量的具有非常小的翘曲的薄玻璃模制产品的方法，以及用于制造薄玻璃模制产品的装置。 解决方案：该方法是通过在与用于压制的下模的面对下压模的上压模的成形表面压制成型的下模的成形表面上进行加压成型的熔融玻璃料块进行压制成形来制造薄玻璃。 对于至少一段时间，直到在压模成型后将上模从压制成型品上取下之后，将压模成型品从下模的成型面上取出后，将冷却用上模 压制成型品，以平衡压制成形品的上表面和下表面的冷却条件。 用于制造薄玻璃的装置配备有用于压制的上模和用于冷却的上模。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009046360A

公开(公告)日：2009-03-05

申请号：JP2007215285

申请日：2007-08-21

Applicant: Hoya Corp ,  Hoya株式会社

Inventor： MAEDA NOBUHIRO

IPC: C03B19/02 ,  C03B11/00

Abstract: PROBLEM TO BE SOLVED: To provide a method for continuously manufacturing a glass plate with a small thickness deviation in the width direction of the plate, from molten glass.
SOLUTION: The manufacturing method of a glass plate comprises continuously casting molten glass into a casting mold having a pair of the sidewalls facing with each other, a bottom and an open top and moving the cast glass in one direction along to mold it in the form of a plate. A member having projections is brought in contact with the upper surface of the glass moving in the mold. This promotes the cooling of the upper surface and forms projections and depressions on the upper surface in a way that the projections extend from one side of the sidewalls to the other side of the sidewalls.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于连续制造在板的宽度方向上具有小的厚度偏差的玻璃板与熔融玻璃的方法。 解决方案：玻璃板的制造方法包括将熔融玻璃连续铸造到具有彼此面对的一对侧壁的铸模中，底部和敞开的顶部，并沿着一个方向移动铸造玻璃以使其成型 以板的形式。 具有突起的构件与在模具中移动的玻璃的上表面接触。 这促进了上表面的冷却，并且在上表面上形成突起和凹陷，突起从侧壁的一侧延伸到侧壁的另一侧。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2004292274A

公开(公告)日：2004-10-21

申请号：JP2003089531

申请日：2003-03-28

Applicant: Hoya Corp ,  Hoya株式会社

Inventor： MAEDA NOBUHIRO ,  UCHIDA KAZUYA

IPC: G02B3/00 ,  C03B11/00 ,  C03B17/06

CPC classification number: C03B17/062 ,  Y02P40/57

Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method of a glass plate to stably supply a glass plate having a constant thickness, a manufacturing method of a base material for press molding made of glass, and a manufacturing method of an optical part. SOLUTION: This glass plate is continuously manufactured by continuously introducing a melt glass flow into a mold and forms into a plate in the mold and the molded glass plate is drawn out of the mold. In this method, the variation of the thickness is reduced by changing the drawing speed of the glass plate based on the change of the height of the molten glass surface introduced in the die. This glass plate is processed into the glass base material for press molding of a desired weight, or the glass base material for press molding is heated and softened and this optical glass part is manufactured via press molding. COPYRIGHT: (C)2005,JPO&NCIPI