Abstract: The present invention provide a lateral type electron-emitting device in which abnormal discharge near an electron-emitting region is suppressed, electron emission characteristics are stable, and electron emission efficiency is high. A method of manufacturing an electron-emitting device of the invention includes: a first step of preparing an electron-emitting electrode and a control electrode that are arranged on a surface of an insulating substrate; and a second step of covering the surface of the insulating substrate, which is located between the electron-emitting electrode and the control electrode, with a resistive film to connect the electron-emitting electrode and the control electrode. In the method of manufacturing an electron-emitting device, the resistive film is arranged to cover an end of a surface of the electron-emitting electrode opposed to the control electrode.

Abstract: Disclosed is an electron-emitting device, an electron source, and an image-forming apparatus that have uniform electron-emitting characteristics, emit electron beams whose diameters are small, have simple constructions, and are easy to be manufactured. The electron-emitting device comprising: a first electrode arranged on a surface of a substrate; an insulating layer arranged on the first electrode; a second electrode arranged on the insulating layer; and an electron-emitting film arranged on the second electrode, where the second electrode has two side surfaces that oppose each other in a direction parallel to the surface of the substrate, and the electron-emitting film is arranged so as to be shifted toward one of the two side surfaces.

Abstract: There are provided a pressure intensifying cylinder 2a for allowing a pressure intensifying chamber 31 to communicate with a head-side cylinder chamber 22 of a working cylinder 1 and its control hydraulic circuit. When a load and a rated pressure Pp of a hydraulic pump 25 are balanced with each other at the time of inserting and setting a core 41, a check valve 21 is closed and a sequence valve 34 is opened to move the pressure intensifying cylinder 2a forward, so that the pressure of the head-side cylinder chamber 22 is increased. A pressure intensifying ratio of the pressure intensifying cylinder 2a is set such that the pressure of the head-side cylinder chamber 22 is higher than pressure occurring with molding pressure.

Abstract: Disclosed is an electron-emitting device, an electron source, and an image-forming apparatus that have uniform electron-emitting characteristics, emit electron beams whose diameters are small, have simple constructions, and are easy to be manufactured. The electron-emitting device comprising: a first electrode arranged on a surface of a substrate; an insulating layer arranged on the first electrode; a second electrode arranged on the insulating layer; and an electron-emitting film arranged on the second electrode, where the second electrode has two side surfaces that oppose each other in a direction parallel to the surface of the substrate, and the electron-emitting film is arranged so as to be shifted toward one of the two side surfaces.

Abstract: Disclosed are methods for driving an electron-emitting device, an electron source, and an image-forming apparatus, driving circuits for an electron source and an image-forming apparatus, and an electron source and an image-forming apparatus, with each of which electron emission is effectively halted. A voltage (Vg−Vc)>0 is applied to an electron-emitting device placed in a driving state in which electrons should be emitted, thereby having the electron-emitting device emit electrons. A voltage (Vg−Vc)<0 is applied to an electron-emitting device placed in a halt state in which no electrons should be emitted, thereby having the electron-emitting device halt electron emission.

Abstract: This invention aims to prevent a core from being pushed back when a hydraulic fluid is compressed by a high load occurring with a molding pressure of molten melt at a casting and pressing time in a core driving cylinder in a die cast machine.