Canon Kabushiki Kaisha

Kumi Nakamura

Taiko Motoi

Masaaki Shibata

Masato Yamanobe

Toshiaki Aiba

Rie Ueno

Takeshi Imamura

Tadashi Okamoto

Manabu Komatsu

Hiroyuki Hashimoto

Shin Kobayashi

Kazuhiro Ban

Katsuaki Kuge

Takeo Tsukamoto

Sotomitsu Ikeda

Toyoko Kobayashi

Naoko Miura

An information acquisition method for acquiring information on a target object, that includes a step of promoting ionization of the target object using a substance for promoting ionization of the target object to cause the target object to emit, and a step of acquiring information on the mass of the flew target object using time-of-flight secondary ion mass spectrometry.

Information acquisition method, information acquisition apparatus and disease diagnosis method

Provided is an electron-emitting device with high electron emission efficiency and with stable electron emission characteristics over a long period. The electron-emitting device has a substrate, first and second carbon films laid with a first gap in between on the surface of the substrate, and first and second electrodes electrically connected to the first carbon film and to the second carbon film, respectively. In the electron-emitting device, a narrowest gap portion between the first carbon film and the second carbon film in the first gap is located above a surface of the substrate and the substrate has a depressed portion, at least, in the first gap.

Electron-emitting device, electron source using the electron-emitting devices, and image-forming apparatus using the electron source

An electron-emitting device includes a substrate, first and second carbon films disposed so as to have a first gap between the first and second carbon films on a surface of the substrate, and first and second electrodes electrically connected with the first and the second carbon films respectively, wherein the carbon film has a region showing orientation, and a direction of the orientation is in an approximately parallel direction along the substrate surface. Thereby, it is possible to improve thermal and chemical stability of a carbon film and stabilize good electron emission characteristics over a long period.

Electron-emitting device having carbon films with a particular orientation, electron source using electron-emitting device, and image forming apparatus

Electron-emitting device, electron source using electron-emitting device, and image forming apparatus

An electron-emitting device has a pair of device electrodes formed on a substrate, an electroconductive film connecting the device electrodes and an electron-emitting region formed in the electroconductive film. The electron-emitting device is manufactured by (1) applying an ink containing the material for producing the electroconductive film to a predetermined position of the substrate in the form of one or more than one drops by means an ink-jet apparatus, (2) drying and/or baking the applied drop(s) to turn the drop(s) into an electroconductive thin film and (3) applying a voltage to the pair of device electrodes to flow an electric current through the electroconductive film and produce an electron-emitting region. Steps (1) and (2) are so conducted that the electroconductive film formed by steps (1) and (2) have a latent image apt to produce an electron-emitting region by the Joule's heat generated by step (3).

Method of manufacturing electron-emitting device, electron source and

Growing community of inventors

Isehara, Japan

Kumi Nakamura