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    • 5. 发明专利
    • Magnetic flaw detector
    • JP5374328B2
    • 2013-12-25
    • JP2009264262
    • 2009-11-19
    • 大阪瓦斯株式会社
    • 智 藤田秀樹 早川建郎 安松
    • G01N27/84
    • PROBLEM TO BE SOLVED: To obtain a magnetic flaw detection sheet hard to produce the deviation of a magnetism-sensitive body even if the specific magnetic flaw detection sheet is used over a long period of time in regard to using this sheet. SOLUTION: This magnetic flaw detector is equipped with a first pressure applying means P1, which is equipped with an energizing mechanism B producing energizing force from the attraction force for attracting the magnetic pole 3 of a magnetism generation mechanism A to an inspection target by magnetism and presses the magnetic flaw detection sheet to the inspection target through a contact bonding body 4 being a rigid body and a freely deformable pressure member C, as a pressure applying means P. A spacer 37 is interposed between the surface material 35 and back material 36 of the magnetic flaw detection sheet D and the inside of the magnetic flaw detection sheet D is partitioned into a plurality of magnetism-sensitive body moving zones D1, D2 and D3 enabling the movement of the magnetism-sensitive body 38 to prevent the movement of the magnetism-sensitive body 38 straddling the magnetism-sensitive body moving zones D1, D2 and D3. COPYRIGHT: (C)2011,JPO&INPIT
    • 10. 发明专利
    • DC power supply system and the power storage device
    • JP5297127B2
    • 2013-09-25
    • JP2008233560
    • 2008-09-11
    • 大阪瓦斯株式会社
    • 敏史 伊瀬浩明 柿ヶ野敏成 百瀬秀樹 早川
    • H02J7/34H02J9/06
    • PROBLEM TO BE SOLVED: To provide a DC power feeding system in which a voltage of a DC bus bar can be maintained using a power storage device even at both normal power supply and power failure of a commercial power system. SOLUTION: By a control means 14, the operation of a rectifier 2 is controlled so that the voltage of the DC bus bar 4 becomes a reference voltage in system linkage when the voltage of the commercial power system 3 satisfies a normal operation condition, the power storage device 1 is charged and operated when the voltage of the DC bus bar 4 is equal to or more than an upper limit voltage in the system linkage which is higher than the reference voltage in the system linkage, and the power storage device 1 is discharged and operated when the voltage of the DC bus bar 4 is equal to or less than a lower limit voltage in the system linkage which is lower than the reference voltage in the system linkage. At the same time, the operation of the rectifier 2 is stopped when the voltage of the commercial power system 3 does not satisfy a predetermined normal operation condition, the power storage device 1 is charged and operated when the voltage of the DC bus bar 4 is higher than the reference voltage in independent operation, and the power storage device 1 is discharged and operated when the voltage of the DC bus bar 4 is lower than the reference voltage in the independent operation. COPYRIGHT: (C)2010,JPO&INPIT