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公开(公告)号：US10955401B2
公开(公告)日：2021-03-23
申请号：US16309310
申请日：2017-04-13
申请人： Hitachi, Ltd.
发明人： Hiroki Mizuno , Hisashi Nagano , Takahiro Itou , Makoto Namai , Fumihiko Nemoto
摘要： In order to suppress malfunctions even when using a reagent (chemical for reagent) corresponding to a hazardous substance, the present invention has an analyzing unit in which a chemical for reagent, having added thereto an indicator that is different from a hazardous material that is a detection target, is used to calibrate on the basis of the detection target included in the chemical for reagent, and which performs mass spectrometry. When a peak corresponding to the indicator is not included and a peak corresponding to the detection target material is included in the spectrum that is the analysis result of the analyzing unit, the detection target is determined to be included.
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公开(公告)号：US11371915B2
公开(公告)日：2022-06-28
申请号：US16305812
申请日：2017-05-29
申请人： Hitachi, Ltd.
发明人： Shun Kumano , Masuyuki Sugiyama , Hisashi Nagano , Makoto Namai , Takahiro Itou
IPC分类号： G01N1/22 , G01N21/3504 , G01N33/00 , G01N1/02
摘要： In order to detach substances stably from an inspection object, an adhering substance collecting device includes: ejection openings configured to eject gas; a housing on which the ejection openings are provided; and supporting portions which are installed on a surface of the housing on which the ejection openings are provided, and have a prescribed height. The supporting portions include protruded portions formed on the housing. The supporting portions each have a cuboid shape, and are installed such that a distance therebetween becomes smaller toward a direction of a recovery opening that is configured to collect substances having been detached from an inspection object, from the gas.
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公开(公告)号：US11536858B2
公开(公告)日：2022-12-27
申请号：US16645513
申请日：2018-08-30
申请人： HITACHI, LTD.
发明人： Takahiro Tadokoro , Yuichiro Ueno , Katsunori Ueno , Kouichi Okada , Shuichi Hatakeyama , Yasushi Nagumo , Takahiro Itou , Yoshinobu Sakakibara
摘要： Provided is a radiation monitor and the like capable of appropriately measuring radiation. A radiation monitor (100) includes: radiation detection units (11, 12); optical fibers (13p, 13q) that transmit light generated by a plurality of radiation detection elements (11a, 12a) to merge; a light detection unit (14) that converts the light after merging guided to the light detection unit into an electric pulse; a measurement device (15) that calculates a dose rate of radiation based on a count rate of the electric pulses; and an analysis/display device (16). Housings (11b, 12b) include a housing (11b) made of a first material and another housing (12b) made of a second material.
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公开(公告)号：US09828993B2
公开(公告)日：2017-11-28
申请号：US14764104
申请日：2013-01-29
申请人： Hitachi, Ltd.
发明人： Takahiro Itou , Tadashi Osaka
CPC分类号： F04C15/0019 , F01C19/005 , F01C21/108 , F04C2/18 , F04C15/0026 , F04C15/0034
摘要： A rotary fluid machine that reduces fluid leakage from a gear pump or gear motor and achieves improvement in responsiveness is provided. The present invention is configured such that force of pressing a side plate toward gears by a seal member provided between the side plate and a case and performing pressure compartment is partly strong, not uniform along the entire length of the seal member. Specifically, for example, a gear pump comprises an assembly including a pair of gears, a side plate sealing a side surface of the gears, and a seal block sealing tooth tips of the gears, a case housing the pump assembly, and a seal member being arranged between the side plate or the seal block and the case and along a notch portion formed in the side plate or the seal block. The seal member is wider at a portion in a position passing through a place with large pressure fluctuations than at other portions.
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