ELECTRON EMITTING ELEMENT AND IMAGE FORMING APPARATUS EMPLOYING IT

WIPO Patent Application WO/2004/095146

A1

An electron emitting element (11) having a semiconductor layer (14) formed between an upper electrode (16) and a lower electrode (13), characterized in that an organic compound adsorption layer (15) is formed by adsorbing an organic compound to the surface of semiconductor of the semiconductor layer (14). The semiconductor layer (14) is composed of silicon or polysilicon and may be porous partially or entirely. The organic compound being adsorbed may be a compound formed of acyclic hydrocarbon, acyclic hydrocarbon bonded with at least an aldehyde group, or acyclic hydrocarbon having an unsaturated bonding. An electron emitting element operating stably even under atmospheric pressure or in low vacuum, and an image forming apparatus employing it can thereby be provided.

Koshida, Nobuyoshi (3-12-8, Midori-cho Koganei-shi, Tokyo 03, 18400, JP)
Iwamatsu, Tadashi (3-20, Saidaiji-shinden-cho Nara-shi, Nara 32, 63108, JP)
Hirakawa, Hiroyuki (580-1-301, Karamomo-cho Nara-shi, Nara 54, 63084, JP)

PCT/JP2004/005278

November 04, 2004

April 13, 2004

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SHARP KABUSHIKI KAISHA (22-22, Nagaike-cho Abeno-k, Osaka-shi Osaka 22, 54585, JP)
Koshida, Nobuyoshi (3-12-8, Midori-cho Koganei-shi, Tokyo 03, 18400, JP)
Iwamatsu, Tadashi (3-20, Saidaiji-shinden-cho Nara-shi, Nara 32, 63108, JP)
Hirakawa, Hiroyuki (580-1-301, Karamomo-cho Nara-shi, Nara 54, 63084, JP)

G03G15/02; H01J1/312; H01J31/12; G03G15/02; H01J1/30; H01J31/12; (IPC1-7): G03G15/02; B41J2/385

Fukami, Hisao (Fukami Patent Office, Mitsui Sumitomo Bank Minamimorimachi Bldg., 1-29, Minamimorimachi 2-chome, Kita-k, Osaka-shi Osaka 54, 53000, JP)

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