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1. 发明授权

US5468278A Cermet alloy 失效
标题翻译：金属陶瓷合金
公开(公告)号：US5468278A
公开(公告)日：1995-11-21
申请号：US149939
申请日：1993-11-10
申请人： Yuichi Nakahara , Katsuhiko Kojo
发明人： Yuichi Nakahara , Katsuhiko Kojo
IPC分类号： C22C29/02 , C22C29/00
CPC分类号： C22C29/02
摘要： This invention provides a cermet alloy having a structure comprising a hard phase and a bonding phase, wherein the hard phase comprising carbide particles rich An TiC, those rich in WC and (Ti, W, MO)C or (Ti, W, Mo)(C, N) and the bonding phase comprising at least one of Co and Ni. Mo contents in the bonding phase satisfies the conditions: 1.0.ltoreq.Mo (wt %)/Ti (wt %) and 6 (wt %).ltoreq.Ti+Mo. The cermet alloy has superior hardness and toughness as well as improved heat resistance and is applicable as a material for a wet machining tool.
摘要翻译：本发明提供一种具有包含硬质相和结合相的结构的金属陶瓷合金，其中，包含富Ti的碳化物颗粒，WC和（Ti，W，MO）C或（Ti，W，Mo）（C，N）和包含Co和Ni中的至少一种的结合相。粘结相中的Mo含量满足条件：1.0

2. 发明授权

US5248352A TiC-base cermet alloy 失效
标题翻译： TIC-BASE CERMET合金
公开(公告)号：US5248352A
公开(公告)日：1993-09-28
申请号：US858000
申请日：1992-03-26
申请人： Yuichi Nakahara , Katsuhiko Kojo
发明人： Yuichi Nakahara , Katsuhiko Kojo
IPC分类号： C22C29/10
CPC分类号： C22C29/10
摘要： There can be provided a TiC-base cermet alloy whose hardness is equal to or higher than that of a Ti(C, N)-base cermet alloy and which is excellent in toughness by strengtening the binder phase of the TiC-Base cermet alloy which does not involve the problem of denifrification at the time of sintering. The titanium-carbide-base cermet alloy comprises a hard phase which contains titanium carbide as a main component and a binder phase which contains one or both of Co and Ni as main components, wherein amounts of Ti and Mo in the binder phase satisfy the conditions, by weight T: 0.85.ltoreq.Mo (wt. %)/Ti (wt. %), and 6 wt. %.ltoreq.[Ti +Mo].

3. 发明授权

US5360674A Permanent magnet coated with Ni or Ni alloy having a specific cell structure and growth pattern 失效
标题翻译：用具有特定细胞结构和生长模式的Ni或Ni合金涂覆的永磁体
公开(公告)号：US5360674A
公开(公告)日：1994-11-01
申请号：US992823
申请日：1992-12-16
申请人： Hideki Kawai , Katsuhiko Kojo , Kiyoshi Eguchi , Yoshiko Ogawa
发明人： Hideki Kawai , Katsuhiko Kojo , Kiyoshi Eguchi , Yoshiko Ogawa
IPC分类号： H01F1/053 , H01F1/057 , H01F1/08 , H01F7/02 , H01F41/02 , B22F7/02 , B22F7/04
CPC分类号： H01F41/026 , H01F1/0577 , Y10T428/12028 , Y10T428/12056
摘要： A permanent magnet formed by a permanent magnet alloy of R--T--B system chiefly comprising a transition metal T, a rare earth element R including yttrium and boron B, and coated with a protective plating layer of Ni or an Ni alloy, wherein said protective plating layer is 30 .mu.m or less in thickness, and the inter-cell pitch in the surface of said protective plating layer is 14 .mu.m or more.
摘要翻译：由永磁体合金形成的永磁体，其主要包括过渡金属T，包含钇和硼B的稀土元素R，并且涂覆有Ni或Ni合金的保护镀层，其中所述保护镀层为所述保护镀层的表面间的间隙为14μm以上。

4. 发明授权

US5348806A Cermet alloy and process for its production 失效
标题翻译：金属陶瓷合金及其生产工艺
公开(公告)号：US5348806A
公开(公告)日：1994-09-20
申请号：US946849
申请日：1992-09-18
申请人： Katsuhiko Kojo , Akibumi Negishi , Masayuki Gonda
发明人： Katsuhiko Kojo , Akibumi Negishi , Masayuki Gonda
IPC分类号： B22F1/00 , B22F3/10 , B23B27/14 , C22C1/05 , C22C29/00 , C22C29/02 , C22C29/04 , C22C29/14 , C22C29/16 , B22F3/00
CPC分类号： C22C29/14 , C22C29/02 , Y10T428/12056
摘要： A cermet alloy having a structure comprising a hard phase and a bonding phase, said hard phase comprising (1) at least one of MC, MN, and MCN, wherein M is at least one element selected from Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, and W (2) at least one compound selected from (M,Mo)(B,C), M,Mo)(B,N) and (M,Mo)(B,CN) and (3) at least one Mo--Co--B compound; said bonding phase comprising Co. The cermet alloy has superior toughness and hardness, and can be worked by conventional sintering methods. The invention also includes a method for producing the cermet alloy.
摘要翻译： 1.一种具有包含硬质相和结合相的结构的金属陶瓷合金，所述硬质相包含（1）MC，MN和MCN中的至少一种，其中M为选自Ti，Zr，Hf，V， Nb，Ta，Cr，Mo和W（2）至少一种选自（M，Mo）（B，C），M，Mo）（B，N）和（M，Mo）（B，CN）和（3）至少一种Mo-Co-B化合物; 所述粘合相包括Co。金属陶瓷合金具有优异的韧性和硬度，并且可以通过常规烧结方法进行加工。本发明还包括一种生产金属陶瓷合金的方法。

5. 发明授权

US5457075A Sintered ceramic composite and molten metal contact member produced therefrom 失效
标题翻译：由其制造的烧结陶瓷复合材料和熔融金属接触构件
公开(公告)号：US5457075A
公开(公告)日：1995-10-10
申请号：US241331
申请日：1994-05-11
申请人： Hideko Fukushima , Yasuo Sawano , Katsuhiko Kojo
发明人： Hideko Fukushima , Yasuo Sawano , Katsuhiko Kojo
IPC分类号： C04B35/581 , C04B35/583 , B32B9/00
CPC分类号： C04B35/581 , C04B35/583
摘要： A sintered ceramic composite comprising 35 to 80 wt. % of aluminum nitride, 2 to 60 wt. % of boron nitride, 0.1 to 25 wt. % of an oxide of magnesium, 0.5 to 20 wt. % of at least one of rare earth oxides including yttrium oxide as an optional component and 25 wt. % or less of aluminum oxide as an optional component is disclosed.
摘要翻译：一种烧结陶瓷复合体，其包含35〜80wt。％的氮化铝，2〜60wt。％的氮化硼，0.1〜25wt。镁的氧化物的％，0.5〜20重量％至少一种稀土氧化物（包括氧化钇作为任选组分）和25wt。公开了作为任选成分的氧化铝的％以下。

6. 发明授权

US5149595A Cermet alloy and process for its production 失效
标题翻译： CERMET合金及其生产工艺
公开(公告)号：US5149595A
公开(公告)日：1992-09-22
申请号：US757752
申请日：1991-09-11
申请人： Katsuhiko Kojo , Akibumi Negishi , Hisaaki Ida
发明人： Katsuhiko Kojo , Akibumi Negishi , Hisaaki Ida
IPC分类号： C22C1/05 , B23B27/14 , C22C29/00 , C22C29/02 , C22C29/04 , C22C29/08 , C22C29/10 , C22C29/14 , C22C29/16
CPC分类号： C22C29/10 , C22C29/02 , C22C29/08 , C22C29/14 , Y10T428/12056 , Y10T428/30
摘要： A cermet alloy having a structure comprising a hard phase and a bonding phase, said hard phase comprising (1) at least one of MC, MN and MCN, wherein M is at least one element selected from Ti, Zr, Hf, Th, V, Nb, Ta, Pa, Cr, Mo, U and W and (2) at least one W-Co-B compound; said bonding phase comprising Co. The cermet has superior toughness and hardness, and can be worked by conventional sintering methods. The invention also includes a method for producing the cermet.

7. 发明授权

US6126713A Additive for use in producing spheroidal graphite cast iron 失效
标题翻译：用于生产球墨铸铁的添加剂
公开(公告)号：US6126713A
公开(公告)日：2000-10-03
申请号：US956788
申请日：1997-10-23
申请人： Yoshio Igarashi , Hideharu Nakano , Kenya Matsuyama , Masahiro Takahashi , Senri Okada , Masahide Kawabata , Katsuhiko Kojo , Toshiki Yoshida
发明人： Yoshio Igarashi , Hideharu Nakano , Kenya Matsuyama , Masahiro Takahashi , Senri Okada , Masahide Kawabata , Katsuhiko Kojo , Toshiki Yoshida
IPC分类号： C21C1/10 , C22C37/04
CPC分类号： C22C37/04 , C21C1/105
摘要： An additive for use in producing spheroidal graphite cast iron of the present invention contains a fine particle of magnesium oxide having a purity of 90 weight % or more and at least one selected from the group consisting of a graphite-spheroidizing material, an inoculant and a graphite-spheroidizing inoculant. The fine particle of highly pure magnesium oxide increases the number of nuclei in a melt, and as a result thereof, increases the graphite spheroid count of a spheroidal graphite cast iron being produced. Another additive for use in producing spheroidal graphite cast iron of the present invention contains at least one selected from the group consisting of a graphite-spheroidizing material, an inoculant and a graphite-spheroidizing inoculant, and an oxide of a metal which has, at a temperature of a melt at a time when subjected to a graphite-spheroidizing treatment, an affinity for oxygen smaller than that of a graphite-spheroidizing element being used in the graphite-spheroidizing treatment. By adding to the melt the metal oxide which oxidizes the graphite-spheroidizing element in the melt to an oxide thereof, a great number of fine oxide particles of the graphite-spheroidizing element is dispersed in the melt to provide a spheroidal graphite cast iron having a great number of fine graphite spheroids and a small chill area ratio.
摘要翻译：本发明的球墨铸铁用添加剂含有纯度为90重量％以上的氧化镁微粒子和选自石墨球化材料，孕育剂和石墨球化孕育剂。高纯度氧化镁的微粒增加了熔体中的核的数量，其结果是增加了所生产的球墨铸铁的石墨球体数。本发明的球状石墨铸铁用的另一种添加剂含有选自由石墨球化材料，孕育剂和石墨球化孕育剂组成的组中的至少一种和金属氧化物，在进行石墨球化处理时熔融物的温度比石墨球化处理中使用的氧化石墨球化元素的亲和力小。通过向熔体中加入将熔体中的石墨球化元素氧化成其氧化物的金属氧化物，将许多石墨球化元素的细小氧化物颗粒分散在熔体中，以提供一种球状石墨铸铁，其具有大量细石墨球体和小的冷却面积比。

8. 发明授权

US5569334A Stainless steel member for semiconductor fabrication equipment and surface treatment method therefor 失效
标题翻译：半导体制造设备用不锈钢构件及其表面处理方法
公开(公告)号：US5569334A
公开(公告)日：1996-10-29
申请号：US162479
申请日：1993-12-07
申请人： Tsunehiro Kawata , Katsuhiko Kojo , Youichiro Kazama , Takayuki Fukaya , Toshihiko Tsujimura
发明人： Tsunehiro Kawata , Katsuhiko Kojo , Youichiro Kazama , Takayuki Fukaya , Toshihiko Tsujimura
IPC分类号： C23C8/10
CPC分类号： C23C8/10
摘要： Stainless steel member for semiconductor fabrication equipment having a passive state coating on the surface of the stainless steel comprising, in weight percent, 0.1% or less of C, 2.0% or less of Si, 3.0% or less of Mn, 10% or more of Ni, 15 to 25% of Cr, 1.5 to 4.5% of Mo, 0.5% or less of one or more rare earth element and Fe for substantially the whole remainder. Said passive state coating has a pitting potential of at least 900 mV (when the current density of the anode polarization curve determined with a potentiostat in 3.5% aqueous sodium chloride solution is 10 .mu.A/cm.sup.2) and has a thickness of 0.5 to 20 nm. The invention also includes a surface treatment method for the stainless steel.
摘要翻译：用于半导体制造设备的不锈钢构件在不锈钢表面上具有被动状态涂层，其重量百分比包含0.1％或更少的C，2.0％以下的Si，3.0％以下的Mn，10％以上的Ni，15〜25％的Cr，1.5〜4.5％的Mo，0.5％以下的一种或多种稀土元素，Fe基本上全部为余量。所述被动状态涂层具有至少900mV的点蚀电位（当在3.5％氯化钠水溶液中用恒电位仪测定的阳极极化曲线的电流密度为10μA/ cm 2）时，其厚度为0.5〜20nm 。本发明还包括不锈钢的表面处理方法。

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