SURFACE CONDUCTIVE ELECTRON EMISSION ELEMENT, ELECTRON SOURCE AND IMAGE FORMING DEVICE USING IT

    公开(公告)号:JPH08162003A

    公开(公告)日:1996-06-21

    申请号:JP32116294

    申请日:1994-12-01

    Applicant: CANON KK

    Inventor: NOMA TAKASHI

    Abstract: PURPOSE: To reduce forming power, and also to stabilize electron emission characteristics of a surface conductive electron emission element to be used as an electron source of an image forming device. CONSTITUTION: In a surface conductive electron emission element wherein an electron emitting part 2 is provided on a conductive thin film 3 extending over electron electrodes 4, 5 by electrification forming, the conductive thin film 3 is formed of mixture of high melting point particulates 7 and low melting point particulates 8.

    THIN FILM HAVING FINE PORE STRUCTURE AND METHOD FOR MANUFACTURING FINE PORE STRUCTURAL BODY

    公开(公告)号:JP2002308623A

    公开(公告)日:2002-10-23

    申请号:JP2002027055

    申请日:2002-02-04

    Applicant: CANON KK

    Abstract: PROBLEM TO BE SOLVED: To prepare a thin film of a tin oxide meso structural body provided with a fine pore structure having high structural regularity and a crystalline fine pore wall, and to provide a manufacturing method thereof. SOLUTION: The thin film has the fine pore structure formed by containing an oxide, holds a surfactant in the fine pore and contains tin oxide crystal in the fine pore wall. The manufacturing method for the fine pore structural body has a process for preparing a reaction solution containing a metallic compound and the surfactant, a process for applying the reaction solution on a substrate and a process for holding the substrate in an atmosphere containing steam.

    SAMPLE HOLDER FOR MEASURING DIFFRACTION OF OBLIQUELY EMITTED X-RAYS AND APPARATUS AND METHOD FOR MEASURING DIFFRACTION OF OBLIQUELY EMITTED X-RAYS USING THE SAME

    公开(公告)号:JP2001141674A

    公开(公告)日:2001-05-25

    申请号:JP32534599

    申请日:1999-11-16

    Applicant: CANON KK

    Abstract: PROBLEM TO BE SOLVED: To measure a diffraction pattern having a desired S/B ratio by reducing the scattering of air around a sample by a simple method without scaling up an apparatus in the case of the measurement of the diffraction of obliquely emitted X-rays. SOLUTION: A sample holder 15 for measuring the diffraction of obliquely emitted X-rays is constituted of a container 14 holding a sample 3 therein, and an atmosphere control means 13 for controlling the atmosphere in the container 14. An X-ray incident window 11 for permitting primary X-rays 4 to transmit to allow the same to be incident on the sample 3, and an X-ray emitting window 12 for permitting diffracted X-rays to transmit to emit the same to the outside, are formed to the container 14 so as to be separated mutually. When the diffraction of obliquely emitted X-rays is measured, primary X-rays 4 are emitted from an X-ray source 9 in such a state that the atmosphere in the container 14 holding the sample 3 therein is controlled by the atmosphere control means 13 to be diffracted by the sample 3, and the diffracted X-rays 5 are detected and recorded by an X-ray detector 6 to measure the diffraction pattern of the sample 3.

    METHOD AND APPARATUS FOR MEASURING SURFACE DENSITY

    公开(公告)号:JP2000275193A

    公开(公告)日:2000-10-06

    申请号:JP8173799

    申请日:1999-03-25

    Applicant: CANON KK

    Abstract: PROBLEM TO BE SOLVED: To measure the surface density of a minute region in a non-destructive manner. SOLUTION: In this measuring apparatus, a sample 3 is held on a goniometer 14 having a sample rotating mechanism and the incident angle α of primary X-rays 4 from an X-ray source 10 is set by the sample rotating mechanism. The intensity of diffracted/scattered X-rays 5 from the sample 3 is measured by an X-ray detector 6 and a calculation part 13 detects the angle 2 θ of diffraction of X-rays from the intensity distribution of diffracted/scattered X-rays 5 measured by the X-ray detector 6 and also regulates the emitting angle βof X-rays. The change quantity of the angle of diffraction due to the refraction effect of X-rays is calculated from the data of the incident angle a and the angle 2 θ of diffraction or the data of the emitting angle B and the angle 2 θof diffraction and the density of the substance constituting the surface of the sample 3 is calculated on the basis of the change quantity.

    SAMPLE MEASURING DEVICE
    67.
    发明专利

    公开(公告)号:JPH11201916A

    公开(公告)日:1999-07-30

    申请号:JP771098

    申请日:1998-01-19

    Applicant: CANON KK

    Abstract: PROBLEM TO BE SOLVED: To implement a sample measuring device capable of measuring wide- angle regions and narrow-angle regions and of switching the constitution of the device in the case of measuring wide-angle regions and the case of measuring narrow-angle regions by simple operation. SOLUTION: An x-ray generating means 1, a slit 4, and goniometers 2 and 3 are arranged in a line in this order. The goniometer 2 is provided with a sample holder 8 rotated about the axis of rotation 2a and an arm 11 with a slit 5 swung about the axis of rotation 2a. In the case of measuring wide-angle regions, a sample 10 is placed to the sample holder 8, and an x-ray detector 7 is installed on the arm 11. The goniometer 3 is provided with a sample holder 9 rotated about the axis of rotation 3a and an arm 12 swung about the axis of rotation 3a. In the case of measuring narrow-angle regions, the sample 10 is placed to the sample holder 9, and the x-ray detector 7 is installed on the arm 12. The slit 5 is arranged between the goniometer 2 and the goniometer 3.

    MANUFACTURE OF ELECTRON EMITTING ELEMENT AND IMAGE FORMING DEVICE

    公开(公告)号:JPH07192613A

    公开(公告)日:1995-07-28

    申请号:JP34593093

    申请日:1993-12-24

    Applicant: CANON KK

    Abstract: PURPOSE:To suppress a fluctuation of electric resistance of an electron emitting part forming thin film and to collect its material made reusable. CONSTITUTION:An electron emitting part 3 is provided between opposed electrodes 5, 6 formed on an insulating substrate 1. An organic metal compound having volatility is applied onto the substrate, formed with electrodes, to form a thin film 7. A region, where the electron emitting part of this organic metal compound thin film is formed, is coated with a coating material 8. An organic metal compound in a part except the region, coated with this coating material, is removed. By heating the film baked, a thin film 14 consisting of metal particulates or metal oxide particulates or a mixture thereof is created. Next by a current carrying process, the electron emitting part is formed in the thin film.

    LIQUID CRYSTALLINE COPOLYMER, AND LIQUID CRYSTAL COMPOSITION AND POLYMER LIQUID CRYSTAL ELEMENT PREPARED THEREFROM

    公开(公告)号:JPH0463829A

    公开(公告)日:1992-02-28

    申请号:JP17699290

    申请日:1990-07-03

    Applicant: CANON KK

    Abstract: PURPOSE:To prepare the title copolymer which exhibits a chiral smectic phase over a wide temp. range and a high spontaneous polarization and is easily formed into a thin film by incorporating two specific repeating units into the copolymer. CONSTITUTION:For instance, a dicarboxylic acid having a mesogen and an optically active diol are copolymerized to give the title copolymer which has a degree of polymn. of 5-1000, a wt.-average mol.wt. of 2000-100000, the repeating units of formula I or II (wherein X and Y are each H or CH3 provided that Xnot equal to Y; k is 0-1; m1 is 1-18; m2 is 2-10; m3 is 2-5; and a carbon atom to which CH3 is bound is an asymmetric carbon atom) in the main chain as the first flexible spacer, and the repeating units of formula III (wherein x and y are each 0-18 provided that xnot equal to y and x+y

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