公开(公告)号：EP2554526A4

公开(公告)日：2013-11-27

申请号：EP11759561

申请日：2011-03-25

申请人： TOYO TANSO CO

发明人： MACHINO HIROSHI ,  HIRAOKA TOSHIHARU ,  TOMITA YUJI ,  FUJIOKA YUJI

IPC分类号： C04B35/83 ,  B32B18/00

CPC分类号： C04B35/83 ,  B32B18/00 ,  C04B35/63468 ,  C04B35/63476 ,  C04B35/63496 ,  C04B35/638 ,  C04B2235/5256 ,  C04B2235/5268 ,  C04B2235/614 ,  C04B2235/656 ,  C04B2235/6567 ,  C04B2235/658 ,  C04B2235/661 ,  C04B2235/77 ,  C04B2235/96 ,  C04B2235/9607 ,  C04B2237/385 ,  C04B2237/704 ,  Y10T428/24124 ,  Y10T428/249921 ,  Y10T442/50

公开(公告)号：EP2472524A4

公开(公告)日：2014-06-18

申请号：EP10815476

申请日：2010-09-13

申请人： TOYO TANSO CO

发明人： HIRAOKA TOSHIHARU ,  KONISHI TAKASHI ,  YAMAJI MASATOSHI ,  MACHINO HIROSHI ,  SHIBATA TAIJU ,  SAWA KAZUHIRO

IPC分类号： G21C7/10 ,  G21C1/07 ,  G21C7/107 ,  G21C7/24

CPC分类号： G21C7/10 ,  G21C1/07 ,  G21C7/107 ,  G21C7/24 ,  Y02E30/33 ,  Y02E30/39

公开(公告)号：EP3006574A4

公开(公告)日：2017-02-22

申请号：EP14806927

申请日：2014-06-04

申请人： TOYO TANSO CO

发明人： TOMITA SYUHEI ,  MACHINO HIROSHI ,  HIRAOKA TOSHIHARU ,  BITO SHINGO

IPC分类号： C21D1/00 ,  B22F3/10 ,  D03D1/00 ,  F27D5/00

CPC分类号： F27D5/0006 ,  C21D9/0025 ,  D03D1/00 ,  D03D13/002 ,  D03D15/12 ,  D03D19/00 ,  D10B2101/12 ,  D10B2505/00 ,  F27D3/0024 ,  F27D3/022 ,  F27D3/024 ,  F27D3/12 ,  F27D5/0012 ,  F27D2003/121 ,  F27D2005/0081

摘要： The present invention improves the strength of the bottom (net) of the jig and makes it more difficult and unlikely for deviation of the mesh to occur. A workpiece is loaded on the net (2) of the heat treat furnace jig (hereinafter, heat treatment furnace jig). In the net (2), a first strand (10), a second strand (20) and a third strand (30) are in contact at a contact point (X1). Near the contact point (X1), the second strand (20) overlaps the first strand (10) from above and the third strand (30) overlaps the first strand (10) from below. As a result, the first strand (10) is held between the second strand (20) and the third strand (30) in the up/down directions.

公开(公告)号：EP1306354A4

公开(公告)日：2005-03-30

申请号：EP01921810

申请日：2001-04-11

申请人： SHINETSU QUARTZ PROD ,  TOYO TANSO CO

发明人： KUSANO YOSHIHISA ,  SHIMADA ATSUYUKI ,  HIRAOKA TOSHIHARU

IPC分类号： C03B8/04 ,  C03B19/02 ,  C03B19/09 ,  C03B19/14 ,  C03B37/012 ,  C03B37/014 ,  C03B37/027 ,  C03B37/018 ,  G02B6/00

CPC分类号： C03B19/02 ,  C03B19/1484 ,  C03B37/0126 ,  C03B37/01268 ,  C03B37/0128 ,  C03B37/01486 ,  C03B37/02736

摘要： A mandrel for producing quartz glass, comprising at least two columnar or cylindrical, carbon fiber-reinforced, carbon composite material-made members joined in series by screw units. The mandrel is carbon-impregnated and/or carbon-coated on the screw units, and, in addition, may be provided with reinforcing members on the outer sides of the screw portions. Quartz glass fine particles obtained by flame-hydrolyzing a volatile silicon compound are deposited, using this mandrel, on the surface of a heat-resisting base or on a pilot rod at the end of the mandrel to easily form a large porous quartz glass matrix, the glass matrix is dehydrated and transparently vitrified to produce a large optical fiber matrix, and further the optical fiber matrix is drawn to produce a low-cost, high-precision optical fiber. In addition, a columnar or cylindrical mandrel for producing quartz glass is disposed at the center of a heat-resisting mold, is filled with silicon dioxide powder, and melted in a heating furnace for vitrifying, thereby producing a large, high-precision quartz glass element at low costs.

公开(公告)号：EP0913504A4

公开(公告)日：2001-12-19

申请号：EP97928477

申请日：1997-06-26

申请人： TOYO TANSO CO

发明人： YAMAJI MASATOSHI ,  NAGAOKA KATSUHIDE ,  HIRAOKA TOSHIHARU ,  MATSUMOTO TSUYOSHI ,  ISHIKAWA SATOSHI

IPC分类号： C04B35/83 ,  C30B15/10

CPC分类号： C04B35/83 ,  C30B15/10 ,  Y10S117/90 ,  Y10T117/10

摘要： A crucible of carbon fiber reinforced carbon composite material for crystal pulling and a method of manufacturing the same, the crucible being formed using filament windings in a combination of axially reinforced layers as well as circumferentially reinforced layers, which combination is given in two or more sets. The circumferentially reinforced layers resist a force tending to expand a drum portion of the crucible, and the axially reinforced layers resist a force tending to push down a bottom of the crucible. The axially reinforced layers extending from the bottom to the drum portion can be formed by at least either of a level winding having a contact angle of 0 DEG to 10 DEG relative to the central axis or a poral winding, and the circumferentially reinforced layers in areas adjacent to the drum portion out of the drum portion and the bottom portion can be formed by at least either of a parallel winding having a contact angle of 70 DEG to 90 DEG relative to the central axis or a helical winding. When the axially reinforced layers cover the center of the bottom, an integral crucible of C/C composite material with no hole is provided. The surface of the C/C composite material is impregnated and covered with a pyrolytic carbon to improve resistance to going SiC.