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United States Patent | 6,019,653 |
Suzuki ,   et al. | February 1, 2000 |
When manufacturing an electron-beam source, an activation is performed to generate activation material at a plurality of electron-emitting devices. The activation is generated by dividing the plurality of electron-emitting devices into plural groups and sequentially applying voltage to each group.
Inventors: | Suzuki; Noritake (Atsugi, JP); Suzuki; Hidetoshi (Fujisawa, JP); Yamaguchi; Eiji (Zama, JP) |
Assignee: | Canon Kabushiki Kaisha (Tokyo, JP) |
Appl. No.: | 584689 |
Filed: | January 11, 1996 |
Jan 13, 1995[JP] | 7-004025 | |
Sep 07, 1995[JP] | 7-230022 | |
Nov 27, 1995[JP] | 7-307291 |
Intern'l Class: | H01J 009/02 |
Field of Search: | 445/24,50,6 313/336 427/77,78 |
5066883 | Nov., 1991 | Yoshioka et al. | 313/309. |
5185554 | Feb., 1993 | Nomura et al. | 313/495. |
5455597 | Oct., 1995 | Nakamura et al. | 345/75. |
5591061 | Jan., 1997 | Ikeda et al. | 445/3. |
5593335 | Jan., 1997 | Suzuki et al. | 445/50. |
5597338 | Jan., 1997 | Iwai et al. | 427/77. |
5627111 | May., 1997 | Tsukamoto et al. | 427/77. |
Foreign Patent Documents | |||
0620581 | Oct., 1994 | EP. | |
0660357 | Jun., 1995 | EP. | |
6431332 | Feb., 1989 | JP. |
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