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Kanagawa, Japan

Keiji Fukuyama

USPTO Granted Patents = 16

Average Co-Inventor Count = 5.3

ph-index = 7

Forward Citations = 116(Granted Patents)

Location History:

Kanagawa, JP (1990 - 1995)
Kamakura, JP (1979 - 1996)
Tokyo, JP (2003)

Company Filing History:

16 out of 21,351

Mitsubishi Denki Kabushiki Kaisha

Years Active: 1979-2003

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16 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6583561 - Material for converting ultraviolet ray and display device using the same (2003-06-24),

2. 6545397 - Cathode for electron tube (2003-04-08),

3. 5587627 - Planar display apparatus having exposed insulated substrate portion (1996-12-24),

4. 5495146 - Planar display apparatus (1996-02-27),

5. 5436530 - Flat display apparatus with supplemental biasing (1995-07-25),

6. 5122707 - Cathode in a cathode ray tube (1992-06-16),

7. 5118984 - Electron tube cathode (1992-06-02),

8. 5073743 - Electrode for discharge light source (1991-12-17),

9. 5015497 - Cathode for electron tube and manufacturing method thereof (1991-05-14),

10. 4924137 - Cathode for electron tube (1990-05-08),

11. 4897574 - Hot cathode in wire form (1990-01-30),

12. 4864187 - Cathode for electron tube and manufacturing method thereof (1989-09-05),

13. 4797593 - Cathode for electron tube (1989-01-10),

14. 4345186 - Metal vapor discharge lamp (1982-08-17),

15. 4319158 - Electrode for discharge lamp (1982-03-09),

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