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1. 发明专利

JP2013229071A Semiconductor memory device 审中-公开
标题翻译：半导体存储器件
公开(公告)号：JP2013229071A
公开(公告)日：2013-11-07
申请号：JP2012098847
申请日：2012-04-24
申请人： Toshiba Corp , 株式会社東芝
发明人： WATANABE SHOICHI , KUTSUKAKE HIROYUKI
IPC分类号： G11C16/06 , G11C16/04 , H01L21/336 , H01L21/8247 , H01L27/10 , H01L27/115 , H01L29/788 , H01L29/792
摘要： PROBLEM TO BE SOLVED: To provide a semiconductor memory device allowing reduction of a chip area.SOLUTION: In data writing to a memory cell, a control circuit gives a first voltage to a gate electrode 45 of a transistor 40, and in data reading from a memory cell, the control circuit gives a second voltage different from the first voltage to the gate electrode 45 of the transistor 40 connected to a bit line connected to a memory cell as a data reading target.
摘要翻译：要解决的问题：提供一种允许减少芯片面积的半导体存储器件。解决方案：在对存储单元的数据写入中，控制电路向晶体管40的栅电极45提供第一电压，并且在从存储单元，控制电路向连接到连接到作为数据读取目标的存储单元的位线的晶体管40的栅电极45提供不同于第一电压的第二电压。

2. 发明专利

JP2011237343A Fuel assembly and method of designing the same 审中-公开
标题翻译：燃油组件及其设计方法
公开(公告)号：JP2011237343A
公开(公告)日：2011-11-24
申请号：JP2010110408
申请日：2010-05-12
申请人： Toshiba Corp , 株式会社東芝
发明人： WATANABE SHOICHI , KUMANOMIDO HIRONORI , MITSUHASHI ISHI , YOSHIOKA KENICHI , SUGAWARA SATOSHI
IPC分类号： G21C3/62 , G21C3/326 , G21C3/328
CPC分类号： Y02E30/31 , Y02E30/38
摘要： PROBLEM TO BE SOLVED: To reduce reactivity loss at the end of an operation cycle of a core loaded with fuel assemblies without spoiling criticality safety as compared with the fuel assembly using only erbium as burnable poison.SOLUTION: In a method of designing the fuel assembly loadable in a nuclear reactor by bundling fuel rods filled with uranium pellets, first, a virtual fuel assembly is designed which can be loaded in the nuclear reactor using only erbium as the burnable poison. Next, the fuel assembly, which has the same uranium enrichment distribution as the virtual fuel assembly and of which the maximum value of a neutron multiplication factor is smaller than that of the virtual fuel assembly, is designed by subtracting erbium enrichment from the virtual fuel assembly and adding gadolinium thereto.
摘要翻译：要解决的问题：与仅使用铒作为可燃毒物的燃料组件相比，为了减少装载有燃料组件的核心的操作循环结束时的反应性损失，而不损害临界安全性。解决方案：在通过捆扎填充有铀颗粒的燃料棒来设计在核反应堆中装载的燃料组件的方法中，首先，设计虚拟燃料组件，其可以仅使用铒作为可燃毒物装载在核反应堆中。接下来，通过从虚拟燃料组件中减去铒浓缩来设计具有与虚拟燃料组件相同的铀浓缩分布并且其中子倍增系数的最大值小于虚拟燃料组件的燃料组件的燃料组件并向其中加入钆。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2010109185A Semiconductor device 审中-公开
标题翻译：半导体器件
公开(公告)号：JP2010109185A
公开(公告)日：2010-05-13
申请号：JP2008280217
申请日：2008-10-30
申请人： Toshiba Corp , 株式会社東芝
发明人： WATANABE SHOICHI
IPC分类号： H01L21/8247 , H01L27/115 , H01L29/788 , H01L29/792
摘要： PROBLEM TO BE SOLVED: To provide a semiconductor device having good write/erase characteristics wherein the degradation of an FN tunnel current is suppressed.
SOLUTION: A plurality of memory cell transistors allowing information to be electrically written therein and erased therefrom are disposed on a semiconductor substrate 1, wherein each memory cell transistor includes: first and second diffusion layers 2 formed on the semiconductor substrate 1 apart from each other; a channel region 3 provided between the first and second diffusion layers 2; and a gate electrode part 10 including a first insulating film 11 provided on a surface of the channel region 3, a charge storage film 12 provided on the first insulating film 11, a second insulating film 13 provided on the charge storage film 12, and a control gate electrode 14 provided on the second insulating film 13. A third insulating film 30 having a higher dielectric constant than that of a silicon nitride film is provided on a side wall portion in a gate lengthwise direction of the gate electrode part 10.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有良好的写入/擦除特性的半导体器件，其中FN隧道电流的劣化被抑制。解决方案：在半导体衬底1上设置允许电子写入和擦除信息的多个存储单元晶体管，其中每个存储单元晶体管包括：形成在半导体衬底1上的第一和第二扩散层2 彼此; 设置在第一和第二扩散层2之间的沟道区3; 以及包括设置在沟道区域3的表面上的第一绝缘膜11，设置在第一绝缘膜11上的电荷存储膜12，设置在电荷存储膜12上的第二绝缘膜13的栅电极部分10和设置在第二绝缘膜13上的控制栅电极14.在栅电极部10的栅极长度方向的侧壁部分上设置具有比氮化硅膜更高的介电常数的第三绝缘膜30.
版权所有（C）2010，JPO＆INPIT

4. 发明专利

JPH1194972A BOILING WATER REACTOR 失效
公开(公告)号：JPH1194972A
公开(公告)日：1999-04-09
申请号：JP25547897
申请日：1997-09-19
申请人： TOSHIBA CORP
发明人： HIRAIWA KOJI , WATANABE SHOICHI , YOSHIOKA RITSUO
IPC分类号： G21C5/00 , G21C3/328 , G21C3/62 , G21C7/00 , G21C7/10
摘要： PROBLEM TO BE SOLVED: To improve conversion ratio and burning efficiency of plutonium without lowering the critical power ratio by properly setting the pressure in the core and the ratio of boiling part area to non-boiling part area. SOLUTION: A multitude of fuel rods 10 sealed with nuclear fuel material containing plutonium are bundled, which are surrounded with a channel box 13. By arranging fuel assemblies 12 with a certain interval in a reactor pressure vessel, a core is constituted. An outer bypass part where non-boiling water flows is provided between fuel assemblies and to part or whole of the bypass part, control rods 11 with cross shape cross section movable up and down are arranged. The operating pressure of the core part is set in the range at 5 MPa or less and the ratio of boiling part area (A) in horizontal cross section in the core to the sum of non-boiling part area (B) in outer bypass part and the inside of water rods, A/B is set at 3 or more.

5. 发明专利

JPH10288686A NUCLEAR FUEL ELEMENT AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JPH10288686A
公开(公告)日：1998-10-27
申请号：JP9759697
申请日：1997-04-15
申请人： TOSHIBA CORP
发明人： KAWASHIMA MASATOSHI , YUTANI YORIAKI , WATANABE SHOICHI
IPC分类号： G21C3/16 , G21C3/26 , G21C3/42 , G21C21/02 , G21C21/04
摘要： PROBLEM TO BE SOLVED: To cope with various kinds of fuel specifications flexibly without making complex a fuel-manufacturing process. SOLUTION: A nuclear fuel element 10 accommodates an inner pipe 12 for dividing a region in a metal covering pipe 11 for dividing into a central region 4 and a peripheral region 15. A granular substance such as a granular non-fuel substance (containing a fuel parent substance) and a granular non-fuel substance (a diluted substance, a neutron absorption substance, or a neutron deceleration substance) is filled into the central region 14 and the peripheral region 14 in the metal covering pipe 11 by vibration filling for sealing. By performing the vibration filling of the granular substance into the metal covering pipe 11, a nuclear fuel element can be diversified to cope with various kinds of fuel specifications flexibly.

6. 发明专利

JPH1090460A FUEL ASSEMBLY 失效
公开(公告)号：JPH1090460A
公开(公告)日：1998-04-10
申请号：JP24946296
申请日：1996-09-20
申请人： TOSHIBA CORP
发明人： WATANABE SHOICHI , HIRANO YASUSHI , YOSHIOKA RITSUO
IPC分类号： G21C3/328 , G21C3/62
摘要： PROBLEM TO BE SOLVED: To improve the fuel design flexibility and fuel economy of a MOX (mixed oxide) fuel assembly by eliminating the cinder of a burnable poison in the last stage of an operation cycle by reducing the kinds of degrees of Pu(plutonium) enrichment in the fuel assembly and increasing the charging amount of Pu and, at the same time, flattening the output distribution of a reactor core in the height direction. SOLUTION: Fuel rods Gi which contain a burnable poison in their axial centers which are surrounded by a material containing no burnable poison are arranged in the outermost peripheral area of a fuel assembly. The diameters of the fuel rods Gi containing the burnable poison are made larger in the order of G1, G2, and G4 and the diameter of the upper half sections of the fuel rods G3 are made equal to that of the rods G2 that of the lower half sections of the rods G3 are made to that of the rods G4. The rods G3 are also arranged to the positions facing water rods. In the other area of the fuel assembly, fuel rods M containing no burnable poison are arranged.

7. 发明专利

JPH03237385A NEUTRON COLLIMATOR 失效
公开(公告)号：JPH03237385A
公开(公告)日：1991-10-23
申请号：JP3236690
申请日：1990-02-15
申请人： TOSHIBA CORP
发明人： UEDA KIYOSHI , WATANABE SHOICHI , KIKUCHI SHIGETO
IPC分类号： G01T3/00 , G01T7/00 , G21K1/02
摘要： PURPOSE:To exactly detect the concn. of plutonium by providing a neutron absorber container and a thermal neutron barrier which is housed in the neutron absorber container by maintaining the thickness to about the diffusion distance of thermal neutrons while enclosing a neutron detector. CONSTITUTION:The thermal neutron barrier 18 made of polyethylene is housed in the neutron absorber container 17 in the same manner as the outer side of the neutron absorber container 17 and the neutron detector 14 is disposed nearly at the center of this thermal neutron barrier. Since a material having the neutron absorbing effect and a small thermal neutron moving distance is used for the thermal neutron barrier 18 the neutrons passed through a measuring window 13 are hardly absorbed in a B4C plate 15 as the neutron absorber. Further, the thickness of the thermal neutron barrier 18 is confined to the diffusion distance of the thermal neutrons or to the thickness up to 2 times this distance at the most and, therefore, the ratio of the neutrons to be detected in the neutron detector 14 increases. The concn. of the plutonium is thus measured without worrying about the influence of the neutron background from other pulse columns.

8. 发明专利

JPS6457195A FUEL ASSEMBLY FOR BOILING WATER REACTOR 失效
公开(公告)号：JPS6457195A
公开(公告)日：1989-03-03
申请号：JP21125887
申请日：1987-08-27
申请人： NIPPON ATOMIC IND GROUP CO , TOSHIBA CORP
发明人： HIRAIWA KOJI , WATANABE SHOICHI , NAGANO MAMORU
IPC分类号： G21C3/328 , G21C3/30 , G21C3/32 , G21C3/326
摘要： PURPOSE:To raise an infinite multiplication factor and fuel economy, by flattening a ratio distribution of density of hydrogen atoms to uranium atoms (H/U) for all region from an upper part to a lower part of a fuel in a reactor core during its operation. CONSTITUTION:An upper part of a water rod 6 has a number of water outlets 14 on an upper end position of fuel pellets, is constricted upwardly from the position, an upper end of the rod 6 is connected to an upper end plug 8 and the end plug 8 is fixed to a central part of an upper tie plate 10. And a lower part of the rod 16 is constricted downwardly from a position of one-third of whole rod length to become approximately the same diameter as an outer diameter of a fuel rod 4. And also an upper end of a short length fuel having two-thirds length of a full length fuel is fixed by a spacer 5 and there exists no fuel rod above there. An upper end of another short length fuel 4 having one-third length of a full length fuel is also fixed by a spacer 16 and there exists no fuel rod above there. In this way, a distribution of H/U can be flattened from an upper stream side through a down stream side a coolant pass by combining a rod 6 being fat at a down stream side of a coolant pass and slender at a upper stream side of that, with two kinds of the partial length fuels.

9. 发明专利

JPS63252289A FUEL AGGREGATE FOR BOILING WATER TYPE REACTOR 失效
公开(公告)号：JPS63252289A
公开(公告)日：1988-10-19
申请号：JP8574687
申请日：1987-04-09
申请人： NIPPON ATOMIC IND GROUP CO , TOSHIBA CORP
发明人： HIRAIWA KOJI , WATANABE SHOICHI , OGIYA TOSHISUKE
IPC分类号： G21C3/30 , G21C3/326 , G21C3/328

10. 发明专利

JPS6312989A FUEL ROD FOR NUCLEAR REACTOR 失效
公开(公告)号：JPS6312989A
公开(公告)日：1988-01-20
申请号：JP15508186
申请日：1986-07-03
申请人： NIPPON ATOMIC IND GROUP CO , TOSHIBA CORP
发明人： WATANABE SHOICHI
IPC分类号： G21C3/62

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