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Patent Searching and Data


Title:
COLD CATHODE DEVICE AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2012/108161
Kind Code:
A1
Abstract:
Provided is a cold cathode device that can achieve warming of the cold cathode to drive absorbed gas out of the cold cathode during vacuum evacuation of a container to increase the degree of vacuum in the vacuum container for the cold cathode device. A cold cathode device (1) has: a cold cathode (3) that releases electrons with the application of a voltage; a filament (4) that heats the cold cathode (3); a support shaft (6) that supports the cold cathode (3) and is conductive; a glass tube (2) that is a vacuum container surrounding the cold cathode (3), heater (4), and support shaft (6); heater terminals (7a, 7b) that exit to the outside of the glass tube (2) and are connected to the filament (4); and a support body terminal (7c) that exits to the outside of the glass tube (2) and is connected to the support shaft (6). The heater terminals (7a, 7b) and support body terminal (7c) are electrically independent from each other, and desired voltages can be accurately applied separately thereto.

Inventors:
NAKAMURA, Tomonori (3-9-18 Imai Oume-sh, Tokyo 23, 〒1980023, JP)
中村 智宣 (〒23 東京都青梅市今井3-9-18株式会社鬼塚硝子内 Tokyo, 〒1980023, JP)
ONIZUKA, Yoshihiro (3-9-18 Imai Oume-sh, Tokyo 23, 〒1980023, JP)
鬼塚 好弘 (〒23 東京都青梅市今井3-9-18株式会社鬼塚硝子内 Tokyo, 〒1980023, JP)
Application Number:
JP2012/000746
Publication Date:
August 16, 2012
Filing Date:
February 03, 2012
Export Citation:
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Assignee:
ONIZUKA GLASS CO. LTD. (3-9-18 Imai, Oume-shi Tokyo, 23, 〒1980023, JP)
株式会社鬼塚硝子 (〒23 東京都青梅市今井3-9-18 Tokyo, 〒1980023, JP)
NAKAMURA, Tomonori (3-9-18 Imai Oume-sh, Tokyo 23, 〒1980023, JP)
中村 智宣 (〒23 東京都青梅市今井3-9-18株式会社鬼塚硝子内 Tokyo, 〒1980023, JP)
ONIZUKA, Yoshihiro (3-9-18 Imai Oume-sh, Tokyo 23, 〒1980023, JP)
International Classes:
H01J1/304; H01J9/02; H01J9/39; H01J37/073
Foreign References:
JPS52127059A1977-10-25
JPH07182969A1995-07-21
JP2002361599A2002-12-18
JPS6454639A1989-03-02
JPH10172417A1998-06-26
JPH01187749A1989-07-27
Attorney, Agent or Firm:
YOKOKAWA, Kuniaki (A802 SS10 Bldg. 5-38-13 Chuo Nakano-k, Tokyo 11, 〒1640011, JP)
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Claims: