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21. 发明专利

CA2183987A1 Dental Attachment 未知
公开(公告)号：CA2183987A1
公开(公告)日：1996-07-04
申请号：CA2183987
申请日：1995-12-26
申请人： AICHI STEEL WORKS LTD
发明人： HONKURA YOSHINOBU , YOKOYAMA TAKASHI , FUJII HIDEKI , TANAKA YOSHINOBU
IPC分类号： A61C8/00 , A61C13/235
摘要： A denture attachment is planted in a denture base in such a manner as to oppose a keeper (103) made of a soft magnetic substance, and clamped by the keeper (103) through magnetic attraction. The attachment comprises at least plate-like three yokes made of a soft magnetic substance and at least two plate-like magnets the N and S poles are oriented in the direction of the thickness of the attachment. In the drawing, the attachment comprises a center yoke (10), a first magnet (1), a second magnet (2), a first side yoke (11) and a second side yoke (12). The magnetic poles of the first and second magnet (1, 2) on both sides of the center yoke (10) are characteristically opposed to one another. Therefore, an independent magnetic loop is formed for each magnet. Because of this novel structure, the magnetic force is about twice stronger than conventional while the denture has a compactness required generally. Spacers (21 and 22) made of a non-magnetic substance may cover the surfaces of both magnets (1 and 2) in contact with the keeper (103), and a casing (3) made of a non-magnetic substance may cover the entire portion other than the surfaces in contact with the keeper so as to improve both corrosion resistance and wear resistance.

22. 发明专利

DE3855217D1 未知
公开(公告)号：DE3855217D1
公开(公告)日：1996-05-23
申请号：DE3855217
申请日：1988-01-29
申请人： AICHI STEEL WORKS LTD
发明人： HONKURA YOSHINOBU , FUJII HIDEKI , MURATA KOJI
IPC分类号： C22C38/00 , C22C38/18 , C22C38/28 , C22C38/60

23. 发明专利

DE68913510T2 未知
公开(公告)号：DE68913510T2
公开(公告)日：1994-06-30
申请号：DE68913510
申请日：1989-06-01
申请人： AICHI STEEL WORKS LTD
发明人： TANAKA YOSHINOBU , IWAMA YOSHIRO , HONKURA YOSHINOBU , ARAI KAZUO , WATARAI AKI
IPC分类号： A61C13/235 , A61C8/00
摘要： A magnet-carrying artificial tooth attachment buried in a dental plate and consisting of a pair of end members of a soft magnetic alloy, a spacer of a non-magnetic alloy interposed between these end members, a magnet, and a cap covering a combination of these parts except for the root cap-contacting surfaces of the end members and spacer. In this attachment, a magnetic attractive force of the magnet is applied to the root cap buried in a pulp cavity of a crown-removed tooth and consisting of a soft magnetic alloy, to secure the dental plate on the gum. The magnet is set so that the north and south poles thereof are opposed to the end members.

24. 发明专利

DE68913510D1 未知
公开(公告)号：DE68913510D1
公开(公告)日：1994-04-07
申请号：DE68913510
申请日：1989-06-01
申请人： AICHI STEEL WORKS LTD
发明人： TANAKA YOSHINOBU , IWAMA YOSHIRO , HONKURA YOSHINOBU , ARAI KAZUO , WATARAI AKI
IPC分类号： A61C13/235 , A61C8/00
摘要： A magnet-carrying artificial tooth attachment buried in a dental plate and consisting of a pair of end members of a soft magnetic alloy, a spacer of a non-magnetic alloy interposed between these end members, a magnet, and a cap covering a combination of these parts except for the root cap-contacting surfaces of the end members and spacer. In this attachment, a magnetic attractive force of the magnet is applied to the root cap buried in a pulp cavity of a crown-removed tooth and consisting of a soft magnetic alloy, to secure the dental plate on the gum. The magnet is set so that the north and south poles thereof are opposed to the end members.

25. 发明专利

DE68908660D1 未知
公开(公告)号：DE68908660D1
公开(公告)日：1993-09-30
申请号：DE68908660
申请日：1989-10-26
申请人： AICHI STEEL WORKS LTD
发明人： TAKEUCHI HAJIME
IPC分类号： B21D43/05 , B21J13/08 , B21K27/04 , B21J13/03
摘要： This invention relates to a process for press-forming workpieces and a bolster apparatus for the same. The process employs a first bolster apparatus comprising a die holding portion and a transfer, and a second bolster apparatus comprising a die holding portion and transfer. The process comprises the steps performed sequentially: an exchanging step of removing the first bolster apparatus from a bolster mounting portion of a pressing apparatus and mounting the second bolster apparatus to a bolster mounting portion of the pressing apparatus, thereby exchanging the first bolster apparatus with the second bolster apparatus; and a press-forming step of press-forming second workpieces with the second dies held in the second bolster apparatus by operating the pressing apparatus. The process and the bolster apparatus improve the productivity, and are advantageous when producing various types of products by the small lot, because the transfer can be exchanged simultaneously with the exchange of the bolster apparatuses. In addition, the bolster apparatus has done away with the base for the transfer, because the transfer (2,3) is incorporated in the bolster apparatus.

26. 发明专利

DE4124704A1 Heat formable untempered steel having good mechanical properties - useful for making machine parts, comprises carbon, silicon, manganese, chromium, molybdenum, aluminium, vanadium, niobium and iron 未知
公开(公告)号：DE4124704A1
公开(公告)日：1992-01-30
申请号：DE4124704
申请日：1991-07-25
申请人： AICHI STEEL WORKS LTD
发明人： IWAMA NAOKI , NOMURA ICHIE
IPC分类号： C22C38/22 , C22C38/24
摘要： Untempered, heat formable steel is claimed. It needs no heat treatment, merely air cooling, and its deformation properties are independent of the size of the article. The compsn. of this steel is as follows: (wt.%) C 0.1-0.3; Si 0.05-0.5; Mn 0.8-2.0; Cr 0.3-1.5; Mo 0.05-0.5; Al 0.002-0.06; V 0.05-0.5; N 0.008-0.2, and the rest Fe with unavoidable impurities. Furthermore, the proportions of the individual elements must fulfil the following conditions: (a) %Mo + %V is at least .20%; (b) 1.8x%Mn + %Cr + 1/2%Mo is at least 20 x %C; (c) Bs is at least 550 deg. C (Bs is the Bainite transition temp.) and (d) Bs = 830-270x%C-90x%Mn-70x%Cr-83x%Mo. USE/ADVANTAGE - Useful for making parts for driving frames, power driven vehicles, and hydraulic parts in machine building. Economic on heat requirements, excellent properties.

27. 发明专利

IT1207964B 未知
公开(公告)号：IT1207964B
公开(公告)日：1989-06-01
申请号：IT2279582
申请日：1982-08-10
申请人： AICHI STEEL WORKS LTD
发明人： YAMAMOTO TOSHIRO , KOBAYASCHI RYOHEI , OZONE MAMORU KURIMOTO TOSHIO
IPC分类号： C22C38/00 , C21D6/02 , C21D9/02 , C22C38/12 , C22C38/16 , C22C

28. 发明专利

IT1207963B 未知
公开(公告)号：IT1207963B
公开(公告)日：1989-06-01
申请号：IT2279482
申请日：1982-08-10
申请人： AICHI STEEL WORKS LTD
发明人： YAMAMOTO TOSHIRO , KOBAYASHI RYOHEI , KYRIMOTO MAMORU , OZONE TOSHIO
IPC分类号： C22C38/00 , C22C38/04 , C22C38/12 , C22C

29. 发明专利

SE8804695L 未知
公开(公告)号：SE8804695L
公开(公告)日：1988-12-29
申请号：SE8804695
申请日：1988-12-29
申请人： AICHI STEEL WORKS LTD , KOYO SEIKO CO
发明人： TAKATA Y
IPC分类号： C21C7/10 , C22C38/18

30. 发明专利

SE8804695D0 未知
公开(公告)号：SE8804695D0
公开(公告)日：1988-12-29
申请号：SE8804695
申请日：1988-12-29
申请人： AICHI STEEL WORKS LTD , KOYO SEIKO CO
发明人： TAKATA Y
IPC分类号： C21C7/10 , C22C38/18

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