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1. 发明授权

US5601010A Piston unit of an internal combustion engine 失效
标题翻译：内燃机的活塞单元
公开(公告)号：US5601010A
公开(公告)日：1997-02-11
申请号：US423719
申请日：1995-04-18
申请人： Tomohiro Sawada , Shuji Inoue , Yuji Kato
发明人： Tomohiro Sawada , Shuji Inoue , Yuji Kato
IPC分类号： F02F3/00 , C22C9/04 , F02B3/06 , F16J9/00 , F16J1/04
CPC分类号： F16J9/00 , F02B3/06 , F05C2201/021 , F05C2203/0882 , F05C2251/042
摘要： Piston unit used in an internal combustion engine, which allows no interfacial crack between a piston and a wear-proof ring as well as allowing to provide T6 treatment to aluminum base alloy used for the piston. The piston unit has a piston formed of aluminum base alloy, and a wear-proof ring that has been fused with a first ring groove of the piston. The wear-proof ring is formed of copper-zinc alloy with its thermal expansion coefficient ranging from 19.5.times.10.sup.-6 m/m to 22.0.times.10.sup.-6 m/m. The copper zinc alloy may contain 63 wt. % of copper, 30 wt. % of zinc, 15 wt. % of aluminum, and 4% of titanium, or it may contain 70 wt. % of copper and 30% of zinc only.
摘要翻译：用于内燃机的活塞单元，其允许在活塞和耐磨环之间不发生界面裂纹，并且允许为用于活塞的铝基合金提供T6处理。活塞单元具有由铝基合金形成的活塞和已经与活塞的第一环槽熔合的耐磨环。耐磨环由铜 - 锌合金形成，其热膨胀系数为19.5×10-6m / m至22.0×10-6m / m。铜锌合金可以含有63重量％％的铜，30wt。％的锌，15wt。％的铝和4％的钛，或者它可以含有70wt。铜的百分比和仅锌的30％。

2. 发明授权

US08369167B2 Semiconductor memory device and method of testing a sense amplifier of the same 失效
标题翻译：半导体存储器件及其测试方法
公开(公告)号：US08369167B2
公开(公告)日：2013-02-05
申请号：US12984217
申请日：2011-01-04
申请人： Tomohiro Sawada
发明人： Tomohiro Sawada
IPC分类号： G11C29/02
CPC分类号： G11C29/12 , G11C2029/1204
摘要： A semiconductor device includes the following elements. A sense amplifier amplifies signal on a bit line. A column switch is between the bit line and a local input-output line. A sub-amplifier amplifies signal on the local input-output line. A write switch is between the local input-output line and a main input-output line. A write amplifier amplifies write data and supplies the amplified write data to the main input-output line when data write operation is performed. A test circuit activates the sense amplifier while the test circuit deactivating the sub-amplifier and the write amplifier when a data read operation is performed in test mode. The test circuit places the column switch and the write switch in conductive state.
摘要翻译：半导体器件包括以下元件。读出放大器放大位线上的信号。列开关位于位线和本地输入 - 输出线之间。子放大器放大本地输入输出线上的信号。写入开关位于本地输入 - 输出线和主输入 - 输出线之间。当执行数据写入操作时，写入放大器放大写入数据并将放大的写入数据提供给主输入 - 输出线。当在测试模式下执行数据读取操作时，测试电路激活读出放大器，同时测试电路停用子放大器和写放大器。测试电路将列开关和写开关置于导通状态。

3. 发明申请

US20110164464A1 SEMICONDUCTOR MEMORY DEVICE AND METHOD OF TESTING THE SAME 失效
标题翻译：半导体存储器件及其测试方法
公开(公告)号：US20110164464A1
公开(公告)日：2011-07-07
申请号：US12984217
申请日：2011-01-04
申请人： Tomohiro SAWADA
发明人： Tomohiro SAWADA
IPC分类号： G11C29/04
CPC分类号： G11C29/12 , G11C2029/1204
摘要： A semiconductor device includes the following elements. A sense amplifier amplifies signal on a bit line. A column switch is between the bit line and a local input-output line. A sub-amplifier amplifies signal on the local input-output line. A write switch is between the local input-output line and a main input-output line. A write amplifier amplifies write data and supplies the amplified write data to the main input-output line when data write operation is performed. A test circuit activates the sense amplifier while the test circuit deactivating the sub-amplifier and the write amplifier when a data read operation is performed in test mode. The test circuit places the column switch and the write switch in conductive state.
摘要翻译：半导体器件包括以下元件。读出放大器放大位线上的信号。列开关位于位线和本地输入 - 输出线之间。子放大器放大本地输入输出线上的信号。写入开关位于本地输入 - 输出线和主输入 - 输出线之间。当执行数据写入操作时，写入放大器放大写入数据并将放大的写入数据提供给主输入 - 输出线。当在测试模式下执行数据读取操作时，测试电路激活读出放大器，同时测试电路停用子放大器和写放大器。测试电路将列开关和写开关置于导通状态。

4. 发明授权

US5737838A Method of making a piston unit for an internal combustion engine 失效
标题翻译：制造用于内燃机的活塞单元的方法
公开(公告)号：US5737838A
公开(公告)日：1998-04-14
申请号：US758858
申请日：1996-12-02
申请人： Hiromi Niimi , Yasuhiro Kawabata , Soichi Hara , Tomohiro Sawada
发明人： Hiromi Niimi , Yasuhiro Kawabata , Soichi Hara , Tomohiro Sawada
IPC分类号： B22C9/10 , B22D19/00 , F02F3/00 , F02F3/22 , F16J1/09 , F16J9/00 , B23P15/10
CPC分类号： B22D19/0027 , F02F3/003 , F02F2003/0061 , F05C2201/021 , F05C2201/0448 , Y10T29/49261
摘要： The method of making a piston unit for an internal combustion engine incorporates the steps of pinching a melting core in a mold cavity of a piston mold wherein the melting core includes an inner ring that forms a ring shaped passage within a piston body, an outer ring and a plurality of coupling portions connected with between the inner ring and the outer ring. The method further includes pouring molten metallic alloy into the cavity and solidifying therein, removing the outer ring of the melting core, filling the space left by removal of the outer ring with reinforced material, and then melting the inner ring and the coupling portions of the melting core.
摘要翻译：制造用于内燃机的活塞单元的方法包括将熔化芯夹在活塞模具的模腔中的步骤，其中熔化芯包括在活塞体内形成环形通道的内环，外环以及与内圈和外圈之间连接的多个联接部。该方法还包括将熔融的金属合金浇注到空腔中并在其中固化，去除熔化芯的外环，通过用增强材料去除外环来填充剩余的空间，然后熔化内环和熔芯。

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