公开(公告)号：EP0917171A3

公开(公告)日：1999-07-28

申请号：EP98121200.4

申请日：1998-11-13

申请人： Hitachi, Ltd.

发明人： Kikuchi, Shigeru ,  Kobayashi, Masato ,  Komuro, Katsuhiro ,  Tanimizu, Toru ,  Hakamata, Yoshimi ,  Kuroda, Kathumi ,  Okabe, Hitoshi ,  Baba, Noboru

IPC分类号： H01H33/66

CPC分类号： H01H33/664 ,  H01H1/0203 ,  H01H33/6643

摘要： The invention aims at providing a vacuum circuit-breaker, a vacuum bulb used therein and electrodes for the vacuum bulb, which can reduce the manufacturing cost while being of high performance and compact in size. The invention resides in a vacuum circuit-breaker, a vacuum bulb and electrodes for the vacuum bulb, which are characterized in that fixed and movable electrodes (30a, 30b) each comprise arc electrodes (1), whose entire surfaces, mutually facing each other, are made of an alloy containing a refractory metal and a highly conductive metal, and electrode rods (4) of a highly conductive metal supporting the respective arc electrodes, and that each arc electrode and the mating electrode rod are integrally formed by means of solid-phase diffusion bonding.

公开(公告)号：EP0905726A2

公开(公告)日：1999-03-31

申请号：EP98117800.7

申请日：1998-09-18

申请人： Hitachi, Ltd.

发明人： Komuro, Katsuhiro ,  Kojima, Yoshitaka ,  Baba, Noboru ,  Hiraga, Ryo ,  Tanimizu, Toru ,  Hakamata, Yoshimi ,  Kuroda, Katsumi ,  Okabe, Hitoshi ,  Kikuchi, Shigeru

IPC分类号： H01H1/02 ,  H01H33/66

CPC分类号： H01H33/6643 ,  H01H1/0206

摘要： Disclosed is a vacuum circuit breaker including a small-sized electrode structure capable of reducing deformation with age thereby enhancing the reliability and a vacuum bulb and a vacuum bulb electrode used for the breaker. In the vacuum circuit breaker, each of a fixed electrode and a movable side electrode includes an arc electrode made from particles of a refractory metal material, a high conductive metal material and a low melting point metal; an electrode supporting portion, made from the high conductive metal material, for supporting the arc electrode; a back conductor having a diameter smaller than the electrode supporting portion; and an external side connecting portion having a diameter larger than that of the back conductor. The arc electrode is integrated with the electrode supporting portion, back conductor, and external side connecting portion by the high conductive metal material, preferably, by melting of the highly conductive metal material.

摘要翻译： 公开了一种真空断路器，其包括能够随时间而减小变形的小尺寸电极结构，从而提高可靠性，以及用于断路器的真空灯泡和真空灯泡电极。 在真空断路器中，固定电极和可动侧电极中的每一个包括由难熔金属材料，高导电金属材料和低熔点金属的颗粒制成的电弧电极; 电极支撑部，由高导电性金属材料制成，用于支撑电弧电极; 背面导体，其直径小于所述电极支撑部分; 以及具有比背面导体的直径大的直径的外侧连接部。 电弧电极通过高导电性金属材料优选地通过熔融高导电性金属材料与电极支撑部分，背面导体和外部连接部分一体化。

公开(公告)号：EP0300808A3

公开(公告)日：1990-08-01

申请号：EP88306747.2

申请日：1988-07-22

申请人： HITACHI, LTD. ,  HITACHI MEDICAL CORPORATION

发明人： Tanaka, Akira ,  Shimada, Satoshi ,  Nakagawa, Yusaku ,  Yamada, Kazuji ,  Nishihara, Motohisa ,  Miyoshi, Tadahiko ,  Kagohara, Hiromi ,  Baba, Noboru ,  Inamura, Ichiro

IPC分类号： H01J35/10

CPC分类号： H01J35/108 ,  H01J2235/084

摘要： A method for generating X-rays in an X-ray tube (10), comprises the steps of rotating an X-ray target (17) of a rotating anode (16), the X-ray target having a metal coated layer (23) thereon, of applying electron beams (18) emitted from a cathode (15) onto the metal coated layer (23) of the X-ray target, and of offsetting thermal deformation of the X-ray target (17) due to the application of said electron beams by deformation of the X-ray target (17) due to centrifugal force, thereby maintaining a position of the X-ray target (17) in a direction of the application of the electron beams, at a room temperature of the X-ray target, thus generating the X-rays.

公开(公告)号：EP0266214A3

公开(公告)日：1990-01-31

申请号：EP87309609.3

申请日：1987-10-30

申请人： HITACHI, LTD.

发明人： Miura, Yuuji ,  Baba, Noboru

IPC分类号： G02B1/10 ,  G02B6/12 ,  G02B6/10

CPC分类号： G02B6/132 ,  C23C14/06 ,  G02B5/285 ,  G02B2006/12109 ,  Y10S359/90

摘要： Interference film filters and optical waveguides with low loss of light, including a laminate deposition-formed on a substrate (1,30) by alternate sputtered lamination of a first film (2,4,10) of amorphous Si x C y O z (x:y:z = 1:0.6-1:0-0.5) having refractive index up to 3.4 and an extinction coefficient below 0.1 and a second thin film (3,5,20) of amorphous Si x O y C z (x:y:z = 1:1.8-2:0-0.5) having a low refractive index in comparison with that of the first thin film. The two film types may be sputtered from a single sintered SiC target by varying oxygen content of a sputter gas mixture.