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Patent Searching and Data


Matches 1,401 - 1,450 out of 12,812

Document Document Title
WO/1988/006345A1
An array of microelectronic tubes which includes a plate-like substrate upon which an array of sharp needle-like cathode electrodes is located. Each tube in the array includes an anode electrode spaced from the cathode electrode. The tub...  
WO/1988/004468A1
A dish-shaped dispenser cathode (28) is mounted at one end of a cathode housing (10), with a heater wire coil (42) mounted behind the cathode (28). A warm-up power supply (70) electrically connected between the central region and the per...  
WO1987003739A1
A liquid metal ion source which is prepared by melting a material to be ionized. The material to be ionized is an alloy represented by the compositional formula of LX?RY?MA? wherein X, Y, and A each represents an atomic %, L represents a...  
WO/1986/007187A1
A digital cathode current control circuit (50) for controlling the cathode current of a travelling wave tube (TWT) amplifier. The cathode current control circuit (50) includes circuitry (11) for providing a comparison signal (Vc) indicat...  
WO/1985/001831A1
An integrated electron-tube structure which may be employed for a rugged, low-cost cathode-ray tube in which a very high stability electron-beam is required. The structure is manufactured by simultaneous reaction bonding of selectively m...  
WO/1985/000692A1
Each of the electrodes (5), (6), (7), differing from each other in their degree of rigidity is provided between a cathode (2) and a fluorescent material surface (1) through a connecting spacer (3), and the electrodes (5), (6), (7), are j...  
WO/1985/000071A1
An electron emission system includes a high-brightness field-emitter cathode (10). Advantageously, the tip (22) of the cathode is shaped to minimize structural variations caused by surface tension forces. In addition, an electrode assemb...  
WO/1984/004202A1
A nickel-based alloy containing elements of ions to be taken out including B, P, Si, As, and C is used as liquid metal ion source. The alloy has a composition of NiaXb wherein X represents at least one element selected from among B, P, S...  
WO/1984/001664A1
An emitter-dispenser housing (48) for a controlled porosity dispenser cathode manufactured of a single material as a unitary piece by a chemical vapor deposition process in which a configured mandrel (20) is coated with a layer of materi...  
WO/1984/000610A1
A field emission electron gun (10) which has an extraction electrode, composed of one or more sharply pointed electrode tips (17) in close proximity to a field emission cathode tip (11), such that a relatively low voltage between the cat...  
WO/1983/002034A1
The making of an electrode assembly which comprises providing anode electrodes (30) on one surface of a photosensitive glass plate (10), providing cathode electrodes (40) on the opposite surface of said glass plate (10) oriented transver...  
WO/1983/002035A1
Making of an electrode assembly which comprises forming partial slots (40) in the bottom surface of a glass plate (10), providing anode electrodes (70) in the slots, applying cathode electrodes (50) on the top surface of the plate (10) o...  
WO/1982/004350A1
Thermionic cathode (12) for a plasma ion source (10) has tungsten wire (64) advanced by wheels (56) from supply (50) to take-up spool (58). In chamber (48), the active cathode region (64) acts with anode (16) to supply electrons for ioni...  
WO/1982/001276A1
A thyristor/capacitor inverter bridge (10) energizes the lamp circuit (21) with a high frequency oscillating voltage derived from full-wave rectified line voltage. Lamp current is regulated by a commutation circuit which is synchronized ...  
WO/1981/002364A1
In a direct heated grid cathode shaped as a one-piece hollow metallic cylinder the working surface has a form of intercrossing spiral-like filaments (3 and 4) with openings (5) between them, the thickness of each of the filaments (3 and4...  
WO/1981/001937A1
A device for stabilization of the electron beam current comprises a sensor (12) of the deviation of the electron beam current from a preset value, a sawtoothed voltage former (14) which is connected to the high-voltage transformer (2) of...  
WO/1980/000282A1
A gun for a linear-beam electron tube has a control grid (40) for modulating the beam current which consists of an array of conductive web elements (50, 52) whose spacing from each other is much larger than their spacing from the concave...  
JP7493662B2
An electron gun comprising a cathode having an electron emitting surface and whose planar shape is circular, a heater to increase the temperature of the cathode, and an anode to apply a positive electric potential relative to the cathode...  
JP7488039B2
An electron gun comprising a cathode having an electron emitting surface and whose planar shape is circular, a heater to increase the temperature of the cathode, and an anode to apply a positive electric potential relative to the cathode...  
JP7486107B2
Embodiments include a vacuum device, comprising: an enclosure configured to enclose a vacuum, comprising an external base forming at least a portion of the enclosure; an internal base within the enclosure; and at least one thermal dissip...  
JP7480939B2
To provide a method for manufacturing an Fe-based nano-micro protrusion structure and an Fe-based nano-micro protrusion structure, the Fe-based nano-micro protrusion structure having better strength and corrosion resistivity than Cu and ...  
JP7467801B1
The present invention provides a novel field emission assembly and electromagnetic wave generation device. A field emission assembly according to an aspect of the present specification includes a linear emitter that includes carbon nanot...  
JP7466874B2
To provide a heater integrated type cathode tube that is excellent in vibration and shock resistance of a heater and has good heating efficiency.A heater integrated type cathode tube includes: a bottomed cylindrical cathode tube 20 havin...  
JP7464793B2
A field emission cathode device comprises a field emission cathode including a cylindrical substrate and a field emission material deposited on a cylindrical surface thereof. The field emission cathode defines a longitudinal axis. A sole...  
JP7458441B2
Provided is a high voltage driving device including a housing and a cathode, an anode, and an insulation structure, which are disposed in the housing. Here, the cathode and the anode are spaced apart from each other with the insulation s...  
JP7445993B2
An electron gun device according to the present invention emits an electron beam by means of heating to a high temperature in a vacuum. According to the present invention, the surface of a material (108, 125), which emits an electron bea...  
JP7445550B2
This electron emitting element includes a lower electrode, a surface electrode facing the lower electrode, a resistance layer arranged between the lower electrode and the surface electrode, and an insulating layer arranged between the lo...  
JP7445098B1
The electron tube 1 includes a photocathode 3 that converts incident light into photoelectrons, a plurality of dynodes 11 and an anode 6, and an insulating substrate that holds the dynodes 11 and 11 and the dynodes 11 and the anode 6 in ...  
JP7442299B2
An electron emission apparatus, an electron gun, and a method of fabrication of the electron gun are provided. The electron gun includes a cathode, a Wehnelt, and an anode. The cathode is configured to provide an electron beam. The Wehne...  
JP7431649B2
Disclosed is an electron beam generation source including: an electron discharge part extending on a desired axis and configured to discharge electrons; a movable part connected to one end of the electron discharge part; a support part c...  
JP7429287B2
A light modulated electron source utilizes a photon-beam source to modulate the emission current of an electron beam emitted from a silicon-based field emitter. The field emitter's cathode includes a protrusion fabricated on a silicon su...  
JP7422147B2
A photocathode including a substrate, a photoelectric conversion layer provided on the substrate and generating photoelectrons in response to incidence of light, and an underlayer provided between the substrate and the photoelectric conv...  
JP7422035B2
A photoelectric-surface electron source includes: a glass substrate that receives laser light from a substrate light-receiving surface including microlenses and that focuses the laser light toward a substrate main surface located on the ...  
JP2024001910A
[Problem] To provide an emitter that emits electrons stably with high efficiency, a method for manufacturing the same, an electron gun using the same, and an electronic device using the same. The emitter of the present invention includes...  
JP7407476B2
The present invention relates to an X-ray source device and a method of controlling the same and includes emitters formed on an upper surface of a cathode electrode to emit electrons; an anode electrode formed to be spaced apart from the...  
JP7403678B2
The current stability of a field emission electron source and a Schottky electron source where a {100} plane of a hexaboride single crystal is used as an electron emission surface is improved. The electron source includes a tip of a hexa...  
JP7399034B2
A photocathode including a substrate, a photoelectric conversion layer provided on the substrate and generating photoelectrons in response to incidence of light, and an underlayer provided between the substrate and the photoelectric conv...  
JP2023552083A
A method for making a field emission cathode, the field emission cathode comprising a substrate having a layer of field emission material engaged therewith, the field emission material incorporating a carbon nanotube material and a metal...  
JP7394453B2
Provided in the present disclosure is an electron emitting element 10 including a laminated structure in which a first electrode 1, an electron accelerating layer 6 made of an insulation film, a second electrode 3, and a cover film 7 are...  
JP2023173840A
To provide an indirect heated cathode capable of shortening the time up to a start of radiation of thermoelectrons, and a method of manufacturing the indirect heated cathode in which a heat absorption layer which has a uniform thickness ...  
JP7393246B2
To provide a carbon nanotube (CNT) dispersion capable of forming a field electron emission film which is improved in power saving property, by reducing an application voltage required for a fixed amount of field electron emission without...  
JP2023169465A
To provide high efficiency electron sources, plasma sources, and switching devices.According to one embodiment, an electron source includes a base body and a first cathode layer. The first cathode layer includes a first diamond layer inc...  
JP2023169459A
To provide a field emission type electron source formed to form a curved surface.An electron source of the present invention has: an etch-stop layer with a first region supported by a substrate and a second region not supported by the su...  
JP2023549000A
The metasurface element includes a support and a metasurface formed on the surface of the support. The metasurface includes a metal pattern arranged to emit electrons in response to incidence of electromagnetic waves, and a metal layer c...  
JP2023545682A
A method and system for cleaning a field emission cathode device, the field emission cathode device including a substrate having a field emission layer engaged thereto, the method and system including a substrate disposed over the field ...  
JP2023545261A
A method for making a field emission cathode, the field emission cathode comprising a substrate having a field emission layer engaged therewith, the field emission layer comprising: A method of incorporating carbon nanotube and metal com...  
JP7369473B2
The present invention provides a simpler method for sharpening a tip of an emitter. In addition, the present invention provides an emitter including a nanoneedle made of a single crystal material, an emitter including a nanowire made of ...  
JP7369675B2
The electron tube includes a vacuum container having a light transmitting substrate, a photocathode provided on an inner surface of the light transmitting substrate, an anode provided in the vacuum container, and a prism. The prism inclu...  
JP7366953B2
A charged particle beam source, such as for use in an electron microscope, can include an electrically conductive support member coupled to a base, a mounting member coupled to the support member and defining a bore, and an emitter membe...  
JP2023544168A
Field emission cathode devices and methods of forming the same include: a rotating field emission cathode having a field emission material deposited on its surface, the field emission cathode rotating about an axis and electrically groun...  

Matches 1,401 - 1,450 out of 12,812