公开(公告)号：JPH08227671A

公开(公告)日：1996-09-03

申请号：JP3227895

申请日：1995-02-21

Applicant: TOSHIBA CORP

Inventor： SATO KAZUNORI ,  ONO OSAMU ,  OKUBO SHUNJI

IPC: H01J29/50 ,  H01J29/48

Abstract: PURPOSE: To prevent a resolution drop in the peripheral section of a color cathode-ray tube screen by providing a field correction electrode on an electrode to form a main lens. CONSTITUTION: Regarding a color cathode-ray tube equipped with at least the first electrode G3 of relatively low potential and the second electrode G4 of relatively high potential laid in such a state as faced to the electrode G3 respectively as a main electron gun lens to emit one row of three electron beams, non-circular three electron beam transmission holes as a combination of 29B, 29G, 29R, 30B, 30G and 30R without any bar ring are formed on the opposite faces of the first and second electrodes G3 and G4. In addition, at least one of the electrodes G3 and G4 is provided with a plate or cup type field correction electrode 31 to adjust stronger focusing action in an orthogonal direction than in the array direction of the three electron beams in a focusing zone formed with the electrodes G3 and G4, and at the same time, to adjust diverging action in a divergent zone similarly formed.

公开(公告)号：JPH0877940A

公开(公告)日：1996-03-22

申请号：JP21442194

申请日：1994-09-08

Applicant: TOSHIBA CORP

Inventor： SATO KAZUNORI ,  HASEGAWA TAKAHIRO ,  OKUBO SHUNJI

IPC: H01J29/50

Abstract: PURPOSE: To sufficiently exhibit the performance of a large aperture lens by forming a main lens of three or more electrodes different in electric potential arranged in the direction for separating from the central axis of an electron gun in a color cathode-ray tube. CONSTITUTION: In an electron gun of a color cathode-ray tube, among plural electrodes constituting a main lens part, a main lens to finally focus three electron beams on a phosphor screen is composed of substantially cylindrical three electrodes 25, 26 and 27 different in a diameter. These electrodes 25, 26 and 27 are coaxially arranged in the direction for separating from the central axis of the electron gun so that an electrode having a large diameter wraps a cylindrical electrode having a small diameter in order of the intermediate electrode 26 and the second electrode 27 by putting the first electrode 25 having the smallest diameter most inside. In the electrodes 25, 26 and 27, the phosphor screen side edge becomes close to the phosphor screen in order of the second electrode 27, the intermediate electrode 26 and the first electrode 25.

公开(公告)号：JPH07288089A

公开(公告)日：1995-10-31

申请号：JP8149594

申请日：1994-04-20

Applicant: TOSHIBA CORP

Inventor： SATO KAZUNORI ,  HASEGAWA TAKAHIRO ,  OKUBO SHUNJI

IPC: H01J29/50

Abstract: PURPOSE:To attain excellent resolution over the whole image screen area by forming an asymmetric electron lens of an opening hole through which electron beams do not pass, and excellently focusing a pair of side beams on a phosphor screen. CONSTITUTION:An opening hole 31 through which a pair of respective electron beams do not pass is arranged on the outside along the vertical directional side edge of a pair of side beam passing holes 30B and 30R on a surface where a fourth grid G4 of an electron gun is opposed to a third grid G3. This hole 31 is formed outside in the arranging direction of the respective holes 30B, 30G and 30R, symmetrically to the arranging axis (X axis) of the electron beam passing hole 30B, 30G and 30R arranged in a row in the horizontal direction, and asymmetrically to the vertical axis 32 of the respective holes 30B and 30R. Thereby, since an asymmetric electron lens can be formed in a main electron lens part, a pair of side beams can be excellently focused on a phosphor screen. Thereby, excellent resolution can be attained over the whole image screen area.

公开(公告)号：JPH06162945A

公开(公告)日：1994-06-10

申请号：JP30574192

申请日：1992-11-17

Applicant: TOSHIBA CORP

Inventor： SATO KAZUNORI ,  NAKANE KAZUNORI ,  URATA HIROSHI

IPC: H01J29/07 ,  H01J29/02

Abstract: PURPOSE:To alleviate the deterioration of withstand voltage characteristics and the defect of an image due to the separation of a black oxide film by forming a recess at least on one of the opposite surfaces of a mask frame and an inner magnetic shield body for providing a gap at a position other than a fixed point between the surfaces. CONSTITUTION:A plurality of apertures 34 are formed on the inner bulge section 32 of a mask frame 23 and each side of an inner magnetic shield body 30 faced thereto including the mounting side of the body 30. This body 30 is mechanically fixed with elastic clips inserted in the apertures 34. Furthermore, a recess 37 comprising a groove of circular arc cross section is formed between the apertures 34 of the bulge section 32, and the mounting side of the body 30 covers the recess 37. According to this construction, the contact area of each opposite side is reduced, and even if vibration is transmitted to the frame 23 and the shield body 30, a damage due to friction and the separation of a black oxide film are lessened. Consequently, an image defect due to a withstand voltage drop and the clogging of the electron beam transmission holes of a shadow mask 21 can also be lessened.

公开(公告)号：JP2003256242A

公开(公告)日：2003-09-10

申请号：JP2002061128

申请日：2002-03-06

Applicant: TOSHIBA MICRO ELECTRONICS ,  TOSHIBA CORP

Inventor： SATO KAZUNORI

IPC: G06F11/30 ,  G06F13/00

Abstract: PROBLEM TO BE SOLVED: To provide a system capable of surely transmitting the process of the reason why the error is caused in a program to the development origin of the program. SOLUTION: A server program for supporting the analysis of the fault of a program to be executed by a client terminal connected through a network comprises a routine for receiving and holding information related with an exception caused in the program to be executed by the client terminal in a real time from the client terminal, a routine for judging whether or not to acquire input information operated by the user of the client terminal just before the occurrence of the exception based on the information related with the exception, a routine for transmitting the judgment result to the client terminal, and a routine for receiving input information operated just before the occurrence of the exception, which is transmitted from the client terminal. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2002083557A

公开(公告)日：2002-03-22

申请号：JP2001119664

申请日：2001-04-18

Applicant: TOSHIBA CORP

Inventor： SATO KAZUNORI ,  ISHIHARA TOMONARI

IPC: H01J29/48 ,  H01J29/50

Abstract: PROBLEM TO BE SOLVED: To provide a cathode-ray tube device capable of forming a uniform- shaped beam spot over the whole surface of a phosphor screen. SOLUTION: A main lens comprises a second segment G5-2, a sixth grid G6, and an additional electrode GM disposed between them. The second segment and the sixth grid are impressed with a constant fixed voltage of a first level and a constant fixed voltage of a second level, respectively. The additional electrode is applied with a voltage of a third level between the first and second levels and also applied with a voltage for changing the value of ((additional electrode applied voltage)-(focusing electrode applied voltage))/((anode electrode applied voltage)-(focusing electrode applied voltage)) as the amount of deflection of an electron beam increases. An auxiliary lens formed by a third grid G4 to a first segment G5-1 disposed in front of the main lens decreases in focusing action as the amount of deflection of the electron beam increases.

公开(公告)号：JP2002075242A

公开(公告)日：2002-03-15

申请号：JP2000252781

申请日：2000-08-23

Applicant: TOSHIBA CORP ,  TOSHIBA ELECTRONIC ENG

Inventor： ISHIHARA TOMONARI ,  SATO KAZUNORI ,  UENO HIROBUMI

IPC: H01J29/04 ,  H01J29/48

Abstract: PROBLEM TO BE SOLVED: To provide an electron gun structure and a cathode-ray tube device having this electron structure in which increase of a burden to the driving circuit is suppressed and expansion of the diameter of the spot size in the horizontal and vertical direction on the fluorescent screen at the time of changing from small current to the large current is reduced, and thereby a high precision is obtained. SOLUTION: The electron beam generating section of the electron gun structure contains a cathode K. This cathode K comprises at least three regions of different electron emission property made of the first region Ka in the center of the cathode face, the second region Kb arranged so as to interpose the first region in the horizontal direction X, and the third region Kc arranged so as to interpose the first region in the vertical direction Y.

公开(公告)号：JP2002008557A

公开(公告)日：2002-01-11

申请号：JP2000183195

申请日：2000-06-19

Applicant: TOSHIBA CORP ,  TOSHIBA ELECTRONIC ENG

Inventor： MIYAMOTO NORIYUKI ,  TAKEGAWA TSUTOMU ,  UENO HIROBUMI ,  HARUTA MASAKAZU ,  SATO KAZUNORI ,  ISHIHARA TOMONARI

IPC: H01J29/48 ,  H01J29/50 ,  H01J29/70

Abstract: PROBLEM TO BE SOLVED: To provide a cathode ray tube device which can restrain the lowering of velocity modulation effect due to eddy current loss caused by magnetic field generated at a velocity modulation coil at an electrode, a component of an electron gun structure, without increasing magnetic field of a velocity modulation coil, and to provide a picture with high sharpness without deteriorating structural strength of the electrode, a component of electron gun structure, and workability of assembly. SOLUTION: At least one electrode G3, a component of an electron gun structure 6, is formed by bonding at least two electrode members G3-1, G3-2, arranged in the traveling direction of electron beam. The first electron member G3-1 has protrusions 10 formed at the end surface bonded to the second electrode G3-2 arranged adjacent to the first electrode G3-1, and bonded to the second electrode member G3-2 through the protrusions 10.

公开(公告)号：JP2001068040A

公开(公告)日：2001-03-16

申请号：JP24302999

申请日：1999-08-30

Applicant: TOSHIBA CORP ,  TOSHIBA ELECTRONIC ENG

Inventor： SATO KAZUNORI ,  UENO HIROBUMI ,  TAKEGAWA TSUTOMU

IPC: H01J29/48

Abstract: PROBLEM TO BE SOLVED: To provide a color cathode-ray tube which generates high grade images by reducing the elliptical distortion of beam spot over the whole screen surface. SOLUTION: A color cathode-ray tube device includes an electron gun 27, having a main lens configured with a focus electrode G32 on which a dynamic voltage incremental in synchronization with the deflection of an electron beam made by a deflection yoke, an anode electrode G4, and an additional electrode Gm which is installed between them G32 and G4 and supplied with a voltage formed by dividing the anode electrode voltage by a resistor, where an additional electrode is furnished with noncircular electron beam passing holes, and with this additional electrode a capacitance element 32 is connected, and a grounding or a connection to other electrode is made via the capacitance element.

公开(公告)号：JP2000048738A

公开(公告)日：2000-02-18

申请号：JP21111298

申请日：1998-07-27

Applicant: TOSHIBA CORP

Inventor： ONO OSAMU ,  SUGAWARA SHIGERU ,  SATO KAZUNORI ,  AWANO KOJI

IPC: H01J29/48 ,  H01J29/50

Abstract: PROBLEM TO BE SOLVED: To make a beam spot small and uniform and enhance resolution by forming electron beam passing holes on an intermediate electrode side of a focusing electrode and on an intermediate electrode side of a final accelerating electrode so as not to have a side wall, and forming electron beam passing holes on the focusing electrode side of the intermediate electrode and on a final focusing electrode side of the intermediate electrode in a longitudinally long shape. SOLUTION: Electron beam passing holes on a first intermediate electrode Gm1 of a fifth grid G5 of an electron gun and on a second intermediate electrode Gm2 side of a sixth grid G6 are formed so as not to form a side wall surface of the surface, or burring. Electron beam passing holes on the fifth grid G5 side of the intermediate electrode Gm1 adjacent to the fifth grid G5 and on the sixth grid G6 side of the second intermediate electrode Gm2 adjacent to the sixth grid G6 are formed in a longitudinally long shape whose diameter in vertical direction is larger than that in the horizontal direction to decrease spherical aberration. An electron beam is uniform on the whole surface of a screen and almost completely round, very small electron beam spot can be obtained, and resolution is enhanced.