中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

84 records (took 0.029 seconds)

    2.
    发明专利
    未知

    公开(公告)号：DE69705180D1

    公开(公告)日：2001-07-19

    申请号：DE69705180

    申请日：1997-08-29

    Applicant: NGK INSULATORS LTD

    Inventor： MIYAZAWA SUGIO ,  ASAI MICHIO

    IPC: C04B37/00 ,  C04B37/02 ,  H01J9/24 ,  H01J9/30 ,  H01J61/30

    Abstract: A process to produce a ceramic tube for a metallic halide lamp, comprising the steps of forming an integrally molded body (1) composed of an electrode member-inserting portion (1a) and an annular portion (1b) located around an outer periphery of the electrode member-inserting portion, inserting the annular portion of the integrally molded body into an open end portion of a molded cylindrical tubular body (3) in a state that each of the integrally molded body and the molded tubular body is used as molded or after being calcined, thereby forming an assembled body, and firing the assembled body, thereby forming an integrally fired body composed of the electrode member-inserting portion and the annular portion. The annular portion and the tubular body are sintered to each other by firing in a state that radial press fitting forces act between the annular portion and the tubular body.

    3.
    发明专利
    未知

    公开(公告)号：DE69713453D1

    公开(公告)日：2002-07-25

    申请号：DE69713453

    申请日：1997-03-27

    Applicant: NGK INSULATORS LTD

    Inventor： NIIMI NORIKAZU ,  ASAI MICHIO

    IPC: H01J9/32 ,  H01J9/40 ,  H01J61/36 ,  H01J61/82

    Abstract: A high pressure discharge lamp comprising a ceramic discharge tube (11) having an inner space filled with an ionizable light-emitting material and a starting gas, plugging members (14) each at least partially fixed to an inner side of respective one of end portions of the ceramic discharge tube and each having a through-hole provided therein, conductive members (5) inserted into or through the through-holes of the plugging members, respectively, and electrode units provided (7,9) in said inner space, wherein a material of the plugging members is the same as that of the ceramic discharge tube, and each of the plugging members is gas-tightly joined to the corresponding conductive member with a metallizing layer (15).

    4.
    发明专利
    未知

    公开(公告)号：DE69942052D1

    公开(公告)日：2010-04-08

    申请号：DE69942052

    申请日：1999-05-26

    Applicant: NGK INSULATORS LTD

    Inventor： MIYAZAWA SUGIO ,  ASAI MICHIO

    IPC: H01J61/30 ,  C04B35/115 ,  H01J9/24 ,  H01J9/26

    Abstract: A vessel according to the present invention is made of a transparent or translucent material; and comprises a main portion and end portions which are integrated into the main portion, respectively. At least a central area of the main portion has a thickness smaller than at the respective end portions and at the boundary areas of the respective end portions and the main portion. An inner diameter of the respective end portions is not more than about 2 mm.

    9.
    发明专利
    未知

    公开(公告)号：DE69913410T2

    公开(公告)日：2004-10-28

    申请号：DE69913410

    申请日：1999-03-24

    Applicant: NGK INSULATORS LTD

    Inventor： NIIMI NORIKAZU ,  ASAI MICHIO

    IPC: H01J61/36

    Abstract: A high pressure discharge lamp comprises a vessel made of a non-conductive material which forms an inner space filled with an ionizable light-emitting material and a starting gas. The vessel has an opening portion at one end thereof. A tubular member is arranged at the opening portion of the vessel and has an outer diameter which is substantially the same as an inner diameter of the first opening portion. An electrode unit is inserted into the tubular member and has an outer diameter which is smaller than an inner diameter of the tubular member. A stopper is arranged between the tubular member and the electrode unit and has an outer diameter which is substantially the same as the inner diameter of the tubular member. The stopper has a hole into which the electrode unit is inserted. A frit seal is filled in a gap which is formed by the tubular member, the stopper and the electrode unit. The stopper defines an inner end position of the frit seal in the tubular member.

    10.
    发明专利
    未知

    公开(公告)号：DE69919629D1

    公开(公告)日：2004-09-30

    申请号：DE69919629

    申请日：1999-06-08

    Applicant: NGK INSULATORS LTD

    Inventor： NIIMI NORIKAZU ,  ASAI MICHIO

    IPC: H01J9/02 ,  C03B23/24 ,  H01J9/24 ,  H01J17/04 ,  H01J17/16 ,  H01J61/32 ,  H01J9/26

    Abstract: A light emitting element comprises a housing (34) formed by allowing respective first principal surfaces of a rectangular upper housing member (12) made of glass material and having a recess at a central portion on its first principal surface and a rectangular lower housing member (14) made of glass material and having a recess at a central portion on its first principal surface as well to make contact with each other so that they are thermally glued by press under a pressure in a predetermined atmosphere; a cavity (16) formed by the respective recesses (30, 32) in the housing (34) and enclosed with at least one of a gas and a light emitting substance; and two lead wires (18, 20) confronted with each other with the cavity (16) interposed therebetween. Accordingly, it is possible to simultaneously realize the integration and the miniaturization of the electronic tube and present the display expression for information transmission at a high brightness.

Patent Agency Ranking