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1. 发明申请

WO1990000528A1 MOLD MATERIAL FOR MOLDING OPTICAL PARTS AND PROCESS FOR ITS PRODUCTION 审中-公开
标题翻译：用于模制光学部件的模具材料及其生产工艺
公开(公告)号：WO1990000528A1
公开(公告)日：1990-01-25
申请号：PCT/JP1989000709
申请日：1989-07-14
申请人： TOSHIBA TUNGALOY CO., LTD. , KOBAYASHI, Masaki , OSHITA, Tomoyuki , KIJIMA, Hiroshi
发明人： TOSHIBA TUNGALOY CO., LTD.
IPC分类号： C03B11/00
CPC分类号： C03B11/086 , C03B11/084 , C03B2215/03 , C03B2215/07 , C03B2215/11 , C03B2215/12 , C03B2215/26 , C03B2215/31 , C03B2215/34 , C03B2215/38
摘要： A mold material for molding optical parts and a process for its production are disclosed, wherein at least the molding surface of the mold material comprises a sinter or a coating layer containing as the major component at least one chromium compound selected from among chromium oxide, chromium oxide carbide, chromium oxide nitride and chromium oxide carbide nitride. Molding of optical parts using this mold enables molded optical parts to be easily taken out, so that the mold has a prolonged life and provides optical parts with good surface accuracy.

2. 发明申请

WO1987004652A1 CONSTITUENT ELEMENTS FOR ULTRA-ABRASIVE-GRAIN GRINDING TOOL AND GRINDING TOOL EMPLOYING SAID ELEMENTS 审中-公开
标题翻译：用于超磨料磨粒工具和磨削工具的组成元素使用同样的元素
公开(公告)号：WO1987004652A1
公开(公告)日：1987-08-13
申请号：PCT/JP1987000084
申请日：1987-02-10
申请人： KOYO-SHA CO., LTD. , TOSHIBA TUNGALOY CO., LTD. , SCIENCE AND CREATIVE CO., LTD. , ENDO, Yukio , MITANI, Kazuyuki , MATSUOKA, Tadashi , UEKI, Masayoshi , OOTAKE, Norio
发明人： KOYO-SHA CO., LTD. , TOSHIBA TUNGALOY CO., LTD. , SCIENCE AND CREATIVE CO., LTD.
IPC分类号： B24D11/00
CPC分类号： B24D11/001
摘要： Constituent elements for an ultra-abrasive-grain grinding tool and a grinding tool composed of said elements, wherein the constituent elements are formed by sticking abrasive grains (3) containing ultra-abrasive grains such as diamond etc. on a network base material (1) with resin adhesive (4) in such a manner that openings of the network are left exposed, the tool being firmed using said constituent elements. Accordingly, a projection of cutting edge of abrasive grains is satisfactory, allowing coolants to be supplied sufficiently and the possibility of clogging to be reduced, resulting in a good cutting quality and an excellent durability thereof.

3. 发明专利

SG77526A1 Plate-crystalline tungsten carbide-containing ard alloy composition for forming plate-crystalline tungsten carbide and process for preparing said hard alloy 未知
公开(公告)号：SG77526A1
公开(公告)日：2001-01-16
申请号：SG1995001109
申请日：1995-08-12
申请人： TOSHIBA TUNGALOY CO LTD
发明人： KOBAYASHI MASAKI , KITAMURA KOZO , KINOSHITA SATOSHI
IPC分类号： B22F7/00 , C22C29/08

4. 发明专利

AT44724T 未知
公开(公告)号：AT44724T
公开(公告)日：1989-08-15
申请号：AT85103359
申请日：1985-03-22
申请人： TOSHIBA TUNGALOY CO LTD
发明人： HIRANO SHIN-ICHI , NAKA SHIGEHARU
IPC分类号： C04B35/583 , C01B21/064 , C04B35/58 , C04B35/5831
摘要： Disclosed are a method for preparing a sintered body containing cubic boron nitride which comprise the steps ofcontacting a starting material containing boron nitride and/or a starting material containing at least one selected from the group consisting of metals of groups IVa, Va and Via of the periodic table, silicon, aluminum, iron group metals and compounds of the aforesaid metals with at least one selected from the group consisting of borazine, a borazine derivative and a compound composed of boron, nitrogen and hydrogen as will release hydrogen by a thermal decomposition under pressure to form boron nitride; andsintering the material under conditions of a predetermined pressure and temperature under which cubic boron nitride is kept stable; and a method for preparing cubic boron nitride which comprises, in addition to the above steps, recovering cubic boron nitride from the obtained sintered body by a chemical and/or physical manner.These methods are considered to be greatly valuable from the viewpoint of industrial usefulness, because of being simple, very high in efficiency and excellent in economy.

5. 发明专利

CA1223013A SILICON NITRIDE SINTERED BODY AND METHOD FOR PREPARING THE SAME 未知
公开(公告)号：CA1223013A
公开(公告)日：1987-06-16
申请号：CA452515
申请日：1984-04-19
申请人： TOSHIBA TUNGALOY CO LTD
发明人： FUKUHARA MIKIO , MAEKAWA YOSHITAKA
IPC分类号： C04B35/584 , C04B35/593 , C04B35/58
摘要： : Silicon nitride sintered body and method for preparing the same There are disclosed a silicon nitride body comprising (A) 0.5 to 25 % by weight of at least one of oxides, nitrides and oxynitrides of rare earth elements consisting of Sc, Y and lanthanide elements; (B) 0.5 to 25 % by weight of at least one of oxides, nitrides and oxynitrides of elements consisting of Be, Mg, Ca, Sr, Ba and Ra in group IIa and/or of nitrides and oxynitrides of elements consisting of B, A1, Ga, In and Tl in group IIIb of the periodic table; and (C) a remainder including Si3N4 and inevitable impurities; provided that the case where a combination of (A) at least one of the oxides of the rare earth element with (B) at least one of the oxides of the elements in group IIa and a combination of (A) at least one of the oxides of the rare earth element with (B) at least one of the oxides of the elements in group IIa and nitrides of the elements in group of IIa are excluded, and a method for preparing the same. The silicon nitride sintered body of this invention has excellent wear resistance and toughness, and are suitable for an industrial production of materials for heat resistant structures.

6. 发明专利

CA1205621A QUICK-CHANGE TOOL 未知
公开(公告)号：CA1205621A
公开(公告)日：1986-06-10
申请号：CA439216
申请日：1983-10-18
申请人： TOSHIBA TUNGALOY CO LTD
发明人： KANNO SHIGEYUKI , MATSUBARA HAJIME
IPC分类号： B23B29/04 , B23P15/28
摘要： QUICK-CHANGE TOOL A quick-change tool comprises a shank assembly and a cutting head cartridge detachably mounted on the shank assembly. The cartridge supports thereon a cutting insert and is provided with a receptacle engaging portion on the rear end portion thereof. The shank assembly comprises a shank body having an axial bore and a draw bar slidably held in the axial bore. The draw bar is provided with a plug engaging portion on its front end. The engaginq portions are provided with flat engaging surfaces. The cartridge is fixed to the shank assembly by rearwardly drawing the draw bar with the engaging portions being engaged with each other. The shank body is provided with a step-like extension extending forwardly from the lower part of its front end surface below the axial bore. A key member adapted to be snugly received between a pair of laterally opposed walls on the cartridge body is fixed to the step-like extension. The receptacle engaging portion is formed of laterally opposed side walls and a cross bar portion connecting the upper ends of the side walls. A laterally elongated upper abutment surfaces are formed on the rear end surface of the cross bar portion and on the front end surface of the shank body. Laterally elongated lower abutment surfaces are formed on the front end surface of the step-like extension and the rear end portion of the cartridge body. When the cartridge is fixed to the shank body the upper abutment surfaces abut against each other, the lower abutment surfaces abut against each other and the receptacle engaging portion rests on the step-like extension with the key member received between the walls.

7. 发明专利

DE69901985T2 未知
公开(公告)号：DE69901985T2
公开(公告)日：2002-12-05
申请号：DE69901985
申请日：1999-04-09
申请人： TOSHIBA TUNGALOY CO LTD
发明人： KIRIYAMA SEIJI
IPC分类号： C23C30/00 , C23C28/00
摘要： Disclosed is an aluminum oxide coated tool member which comprises a substrate, an intermediate layer containing elements of Al, Ti, O and C provided on the substrate and an outer layer adjacent to the intermediate layer, wherein the outer layer comprises Al2O3, and the intermediate layer comprises at least one layer selected from the group consisting of a single-phase layer of a composite carboxide containing Ti and Al, and a complex-phase layer in which at least two selected from the group consisting of TiC, TiN, Ti(C,N), Ti(C,O), Ti(N,O), Ti(C,N,O), Al2O3, AlN, Al(O,N), Al(O,C), Al(O,N,C), a composite nitride containing Ti and Al, a composite oxide containing Ti and Al, a composite carboxide containing Ti and Al, a composite nitroxide containing Ti and Al, and a composite carbonitroxide containing Ti and Al are dispersed.

8. 发明专利

DE69525248T2 未知
公开(公告)号：DE69525248T2
公开(公告)日：2002-09-26
申请号：DE69525248
申请日：1995-08-23
申请人： TOSHIBA TUNGALOY CO LTD
发明人： KOBAYASHI MASAKI , KITAMURA KOZO , KINOSHITA SATOSHI
IPC分类号： C22C1/05 , C22C29/08

9. 发明专利

DE19729797C2 未知
公开(公告)号：DE19729797C2
公开(公告)日：2002-09-19
申请号：DE19729797
申请日：1997-07-11
申请人： TOSHIBA TUNGALOY CO LTD
发明人： HIRANAKA MAKOTO
IPC分类号： B23B51/00 , B23B27/14 , B23B51/04 , B23B27/16 , B23B27/22
摘要： A drill comprising, a central cutting edge tip which is arranged on an axial portion of a distal end of a spindle body, and a peripheral cutting edge tip which is arranged on an outer peripheral portion of the distal end of the spindle body, each of the tips including a tip body, the central cutting edge tip being arranged so that its longitudinal direction is parallel with a radius direction of the spindle body, a long-side cutting edge and a long-side corner cutting edge adjacent to an axial side of the long-side cutting edge being formed as an end cutting edge, and the short-side corner cutting edge adjacent to the long-side corner cutting edge being arranged so as to go beyond the axis of the spindle body, the peripheral cutting edge tip being arranged so that its longitudinal direction is parallel with a radius direction of the spindle body, the short-side cutting edge and the short-side corner cutting edge adjacent to an outer peripheral side of the short-side cutting edge being 9 formed as an end cutting edge, and the long-side corner cutting edge adjacent to the short-side corner cutting edge being arranged so as to be inclined with respect to an axis of the spindle body.

10. 发明专利

DE19729797A1 Drill and drill head 未知
公开(公告)号：DE19729797A1
公开(公告)日：1998-01-15
申请号：DE19729797
申请日：1997-07-11
申请人： TOSHIBA TUNGALOY CO LTD
发明人： HIRANAKA MAKOTO
IPC分类号： B23B51/00 , B23B27/14 , B23B51/04 , B23B27/16 , B23B27/22
摘要： The drill has a drill head central cutting edge (7A) located on an axial section of the outer end of the spindle (1) so that it forms an end cutter, and a circumferential cutting edge (7B) located on the outer circumferential section of the spindle end so that it also forms an end cutter. Both drill heads have a body (7) which is formed as a flat-form parallelogram. Side cutting edges (7a,7c) are formed on each of the two narrow sides (S) of the drill head body and on each of the two longitudinal sides (L) of the drill head.

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