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    • 4. 发明专利
    • Square-shaped nuclear fuel assembly for bwr type using pwr nuclear fuel rod
    • 使用PWR核燃料油的BWR型方形核燃料组件
    • JP2008045980A
    • 2008-02-28
    • JP2006221381
    • 2006-08-15
    • Toshihisa Shirakawa白川 利久
    • SHIRAKAWA TOSHIHISA
    • G21C3/30G21C3/62
    • Y02E30/31Y02E30/38
    • PROBLEM TO BE SOLVED: To solve the problem wherein cost reduction of a scale is insufficient, because each nuclear fuel assembly loaded in a BWR and a PWR is not the same, though having many similar points.
      SOLUTION: U235 enrichment, Pu enrichment, the material, shape and size of each cladding tube used for a square-shaped nuclear fuel assembly are allowed to match, respectively with U235 enrichment, Pu enrichment, the material, shape and size of each cladding tube used for a nuclear fuel for PWR. When MOX is to be used as the nuclear fuel, a combustible toxic substance-cum-moderator of lithium or boron is used.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题为了解决规模成本降低不足的问题,由于装载在BWR和PWR中的每个核燃料组件不相同,尽管具有许多相似点。 解决方案:U235富集,Pu富集,用于方形核燃料组件的每个包层管的材料,形状和尺寸分别与U235浓缩,Pu浓缩,材料,形状和尺寸相匹配 每个包层管用于PWR的核燃料。 当MOX用作核燃料时,使用锂或硼的可燃有毒物质 - 缓和剂。 版权所有(C)2008,JPO&INPIT
    • 6. 发明专利
    • Simplified reprocessing nuclear fuel assembly
    • 简化代替核燃料组件
    • JP2006250534A
    • 2006-09-21
    • JP2005063230
    • 2005-03-08
    • Toshihisa Shirakawa白川 利久
    • SHIRAKAWA TOSHIHISA
    • G21C3/328G21C3/62
    • Y02E30/38
    • PROBLEM TO BE SOLVED: To solve the problems wherein, when reprocessing spent nuclear fuel rods, and reusing them as a fuel after separating minor actinoids (MA), Pu or uranium therefrom, the operation requires high cost because of a strong radiation for MA or Pu and a critical problem, and the fuel rods are hard to be handled.
      SOLUTION: This simplified reprocessing nuclear fuel assembly (130) comprises a nuclear fuel formed by adding highly concentrated uranium in a cascade state to a part of actinoids acquired by being reprocessed simply without separating MA, Pu or uranium from the spent nuclear fuel rods.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了解决在将废核燃料棒进行再加工并在将小型锕系(Pu)或铀分离出来后将其再次用作燃料的问题时,由于强辐射,操作需要高成本 对于MA或Pu和关键问题,燃料棒难以处理。 解决方案:这种简化的后处理核燃料组件(130)包括通过将级联状态下的高度浓缩的铀添加到通过简单地再处理获得的锕系元素的一部分而不将MA,Pu或铀从废核燃料中分离而形成的核燃料 棒。 版权所有(C)2006,JPO&NCIPI
    • 7. 发明专利
    • Nuclear fuel assembly for reactor
    • 核反应堆核燃料组件
    • JP2005207814A
    • 2005-08-04
    • JP2004013161
    • 2004-01-21
    • Toshihisa Shirakawa白川 利久
    • SHIRAKAWA TOSHIHISA
    • G21C3/28G21C3/326G21C3/328
    • Y02E30/37Y02E30/38
    • PROBLEM TO BE SOLVED: To provide a nuclear fuel assembly for a reactor which is highly economical and can enhance the safety by being less likely to become critical promptly. SOLUTION: The nuclear fuel assembly containing nuclear fuel substances consists of nuclear fuel rods (131) including a quasi-external neutron source loaded with neptunium trifluoride (NpF 3 ) or a compound (NpBe13) of neptunium and beryllium in the center of nuclear fuel pellets (44). Consequently, 238 Pu, transformed through the absorption of neutrons by Np emits α rays. F generates neutrons when it reacts with the α rays. A subcritical reactor with a strong external neutron source can make the output equivalent to those of the current reactors generated. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种高度经济的反应器的核燃料组件,并且可以通过不太可能迅速变得关键性来提高安全性。 包含核燃料物质的核燃料组件包括核燃料棒(131),其包括装载有三氟化a(NpF 3 )的准外部中子源或化合物(NpBe 13) 核燃料颗粒中心的ium和铍(44)。 因此,通过Np吸收中子而转化的 238 Pu发射α射线。 当它与α射线反应时,F产生中子。 具有强大外部中子源的亚临界反应堆可使输出等效于所产生的电流反应堆。 版权所有(C)2005,JPO&NCIPI
    • 9. 发明专利
    • 火山性外気換気装置
    • 火花外部空气通风装置
    • JP2014214966A
    • 2014-11-17
    • JP2013092487
    • 2013-04-25
    • 白川 利久Toshihisa Shirakawa白川 利久
    • SHIRAKAWA TOSHIHISA
    • F24F7/06B01D45/08B01D45/12B01D53/04G21C13/00
    • Y02E30/40
    • 【課題】地球規模で長期間に亘って、地球大気は微粒子と火山性ガス含有空気からなる火山性外気になってしまう。火山性外気の中では動的機器の働きが損なわれ停止させざるを得ない事態が生じる恐れがある。動的機器を内包する建屋内の構造を変えずに、動的機器も変えずに、従来程度の清浄空気を取り入れるための換気をどのようにするかが課題である。【解決手段】火山性外気換気装置を建屋に敷設して、建屋内側の清浄空気の圧力を建屋外側の火山性外気の圧力よりも高くする。【選択図】図2
    • 要解决的问题:为了解决地球大气在全球尺度上长时间成为包含细颗粒和含有火山灰气体的空气的火山外部空气的问题,并且活性设备的操作在 火山外的空气也存在可能发生必须强制停止的情况的风险,因此为了吸收常规程度的清洁空气的通风方式是在不改变建筑物结构的情况下解决的问题 包含活动设备,不改变活动设备。解决方案:建筑物内设有火山外部通风装置,建筑物内清洁空气的压力高于建筑物外的火山外部空气的压力。
    • 10. 发明专利
    • Exhaust heat recovery type thermoelectric power generation device
    • 排气热回收型热电发电装置
    • JP2014170791A
    • 2014-09-18
    • JP2013040674
    • 2013-03-01
    • Toshihisa Shirakawa白川 利久
    • SHIRAKAWA TOSHIHISA
    • H01L35/30H01L35/16H02N11/00
    • PROBLEM TO BE SOLVED: To resolve problems that, in a volcanic gas atmosphere, a fossil fuel thermal power generator driven with a gas turbine has to be stopped, and a power generation capacity of photovoltaic power generation is considerably reduced, and accordingly, storage of a power by an accumulator battery becomes meaningless.SOLUTION: There is installed a thermoelectric power generator that can generate power even in a volcanic gas atmosphere, and that almost has no drive device, and that consists of a p-type semiconductor (11) and an n-type semiconductor (12) that are converter elements. Heat recovery is performed while associating a low-temperature heat source and a high-temperature heat source with each other.
    • 要解决的问题:为了解决在火山气体气氛中必须停止由燃气轮机驱动的化石燃料热发电机的问题,并且光伏发电的发电能力大大降低,因此, 蓄电池的电力变得无意义。解决方案:安装了即使在火山气氛中也能发电的热电发电机,几乎没有驱动装置,由p型半导体(11)和 作为转换元件的n型半导体(12)。 在将低温热源和高温热源彼此关联的同时进行热回收。