专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2002163996A MANUFACTURING METHOD OF GYROTRON DEVICE 失效
公开(公告)号：JP2002163996A
公开(公告)日：2002-06-07
申请号：JP2000355158
申请日：2000-11-22
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： IMAI TAKESHI , SAKAMOTO KEIJI , MITSUNAKA YOSHIKA , KARIYA TSUYOSHI
IPC分类号： H01J25/00
摘要： PROBLEM TO BE SOLVED: To enable shortening of aging time and a stable and a stable long pulse actuation of a gyrotron device. SOLUTION: By making evacuation by a vacuum pump 22 while inputting a high frequency into a gyrotron tube main body 1 from high frequency generator 21, 23 when the gyrotron device is manufactured, outgas generated from a tube inner wall surface and parts surface in the tube in actuating is reduced beforehand. By this, a period required for aging of the gyrotron device is shortened, and the gyrotron device enabled to output an actuating pulse of a long pulse width is provided.

2. 发明专利

JP2001338586A MODE CONVERTER AND GYROTRON USING THE SAME 失效
公开(公告)号：JP2001338586A
公开(公告)日：2001-12-07
申请号：JP2000158729
申请日：2000-05-29
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： SAKAMOTO KEIJI , KASUGAI ATSUSHI , MITSUNAKA YOSHIKA
IPC分类号： H01J25/00 , H01J23/40 , H01J25/02 , H01P1/16
摘要： PROBLEM TO BE SOLVED: To suppress parasitic oscillation and improve conversion efficiency of a mode converter that converts higher mode millimeter waves, generated in a resonance cavity of a gyrotron and propagating within a circular waveguide, into an electromagnetic beam propagating in the free space. SOLUTION: A roughly circular waveguide constituting a mode converter 7 of a gyrotron of this invention has a region in which its internal cross-section changes from a true circular form to a noncircular form in a region of 0 to 5 mm from an entrance edge 27 toward a radiating opening 23, increasing deformation degree of the shape from there. On that reason, the possibility of the vicinity of the entrance of the mode converter constituting an undesirable resonance cavity is low, and it is possible to reduce parasitic oscillation generated when the mode converter is built in the gyrotron.

3. 发明专利

JP2003234074A VACUUM WINDOW FOR HIGH-FREQUENCY AND GYROTRON DEVICE 审中-公开
公开(公告)号：JP2003234074A
公开(公告)日：2003-08-22
申请号：JP2002030103
申请日：2002-02-06
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： SAKAMOTO KEIJI , MITSUNAKA YOSHIKA
IPC分类号： H01J25/00 , H01J23/40
摘要： PROBLEM TO BE SOLVED: To provide a gyrotron device which enables widening of its frequency band by raising cooling efficiency. SOLUTION: A vacuum window 14 for high-frequency is provided with a window base plate 23 which is made of synthetic diamond. Thin coatings 24 of fused silica which has a lower dielectric constant than that of the synthetic diamond are formed on both surfaces of the window base plate 23 corresponding to the inner section of the waveguide 12, and corresponding to only the areas inside the waveguide 12 where millimetric wave transmits. The coatings 24 function as antireflection coatings, and thereby the frequency band is widened. A cooling jacket 25 is disposed corresponding to a portion of the window base plate 23 without the coating 24 which protrudes from the waveguide 12, and the window base plate 23 is cooled by coolant. The window base plate 23 made of the synthetic diamond which has high thermal conductivity contacts directly with the coolant because the protruding portion of the window base plate 23 dose not have the coatings 24, and thereby the cooling efficiency can be raised, enabling transmission of high power long pulses. COPYRIGHT: (C)2003,JPO

4. 发明专利

JPH04192240A GYROTRON DEVICE 失效
公开(公告)号：JPH04192240A
公开(公告)日：1992-07-10
申请号：JP32374790
申请日：1990-11-27
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： SAKAMOTO KEIJI , NAGASHIMA TAKASHI , MITSUNAKA YOSHIKA
IPC分类号： G21B1/05 , H01J23/12 , H01J23/54 , H01J25/00 , H01J25/02
摘要： PURPOSE:To prevent oscillating operations and outputs thereof from being unstable due to spurious milli-waves by providing a milli-wave absorbing means absorbing spurious milli-waves generated by the circuit loss of a mode converter. CONSTITUTION:A gyrotron device is provided with a milli-wave absorbing material layer 21 composed of a solid conductive layer such as silicone carbide and the like which absorb milli-waves, in a region enclosing a semi-optical mode converter 7 and in a region which does not interfere with the emission of milli-wave beams 8 in the inner circumferential surface of a converter wall 10 forming a space which houses the semi-optical mode converter 7. In this constitution, most of spurious milli-waves generated by the circuit loss of the mode converter 7 are absorbed by the layer 21. This can thereby prevent useless milli-waves from coming in a cavity resonator 3 and an electron gun 1, thereby making it possible oscillating operations and outputs thereof.

5. 发明专利

FR2669772B1 未知
公开(公告)号：FR2669772B1
公开(公告)日：1994-10-14
申请号：FR9114680
申请日：1991-11-27
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA KK
发明人： SAKAMOTO KEISHI , NAGASHIMA TAKASHI , MITSUNAKA YOSHIKA
IPC分类号： G21B1/05 , H01J23/12 , H01J23/54 , H01J25/00 , H01J25/02
摘要： There is provided a gyrotron including a quasi-optical mode converter wherein a solid dielectric layer such as silicon carbide for absorbing unnecessary millimeter waves generated by diffraction of the quasi-optical mode converter is arranged in annular shape in the periphery of the quasi-optical mode converter, and millimeter absorption fluid can be supplied to the periphery of the mode converter in a predetermined direction through vacuum barrier walls formed by a dielectric member, thereby efficiently absorbing the diffracted millimeter wave which is the cause of generating heat.

6. 发明专利

JPH03117201A WAVEGUIDE CORNER 失效
公开(公告)号：JPH03117201A
公开(公告)日：1991-05-20
申请号：JP25494089
申请日：1989-09-29
申请人： TOSHIBA CORP
发明人： ITO YASUYUKI , MITSUNAKA YOSHIKA
IPC分类号： H01P1/02
摘要： PURPOSE:To correct a gradient error of a guide axis of a waveguide to be connected by making each angle of guide axes of two waveguides with respect to a normal erected on a reflecting face of a reflecting member variable. CONSTITUTION:A reflecting member 3 is moved vertically along a normal 103 through the movement of a mobile shaft 7 in accordance with a change in an angle theta made of guide axes 101, 102 and the normal 103. That is, a bottom part 3b of the reflecting member 3 is formed as a shaft, the reflecting member 3 is moved in the direction of the arrow 107 with respect to a support 8b the reflecting member 3 formed to a base 8 by turning a cap nut 15, then fixed by a lock nut 16. A horn antenna 17 is arranged along with the guide axis 102 and the reflecting member 3 is moved and adjusted in the direction of the arrow 107 so that the reflecting face 3a is in agreement with a cross point of the guide axes 101, 102. Then a radio wave made incident in a waveguide 2 is received by the antenna 17 and it output is led to a detector 18 and the position of the reflecting member 3 is adjusted to maximize the output of the detector 18 thereby correcting a gradient error of the guide axis.

7. 发明专利

JP2010232072A Microwave transmission window structure 审中-公开
标题翻译：微波传输窗口结构
公开(公告)号：JP2010232072A
公开(公告)日：2010-10-14
申请号：JP2009079751
申请日：2009-03-27
申请人： Toshiba Corp , Toshiba Electron Tubes & Devices Co Ltd , 東芝電子管デバイス株式会社 , 株式会社東芝
发明人： OKAZAKI YUKIO , MITSUNAKA YOSHIKA
IPC分类号： H01J23/40 , H01J25/00
摘要： PROBLEM TO BE SOLVED: To provide a microwave transmitting window frame capable of preventing corrosion of a metal portion and having high cooling efficiency.
SOLUTION: A microwave transmitting window structure provided with: a flat-plate shaped dielectric disc 21 having, a metallization portion M extending along loop-shaped peripheral portions on both sides thereof and along an end face connecting the peripheral portions; metal sleeves 22 and 23 fixed on the metallization portion extending along the peripheral portions of the dielectric disc 21; and a brazing-filler 40 that is interposed between the metallization portion and the metal sleeves, and that covers at least parts of the metallization portion extending along the peripheral portions outside the metal sleeves and the end face.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够防止金属部分腐蚀并具有高冷却效率的微波传输窗框。解决方案：一种微波传输窗结构，具有：平板状介质盘21，具有沿着连接周边部分的端面沿着环形周边部分延伸的金属化部分M; 固定在金属化部分上的金属套筒22和23沿着电介质盘21的周边部分延伸; 以及插入在金属化部分和金属套筒之间的钎料40，并且覆盖沿着金属套筒和端面外部的周边部分延伸的金属化部分的至少一部分。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2005185574A X-ray computer tomography system 有权
标题翻译： X射线计算机图像系统
公开(公告)号：JP2005185574A
公开(公告)日：2005-07-14
申请号：JP2003431436
申请日：2003-12-25
申请人： Toshiba Corp , 株式会社東芝
发明人： MOTOI YUICHI , ARADATE HIROSHI , SATO KOZO , AOKI NOBUTADA , MITSUNAKA YOSHIKA
IPC分类号： A61B6/03
摘要： PROBLEM TO BE SOLVED: To realize improvement of rotational speed with the reduction of the influence of scattered radiation in an X-ray computer tomography system.
SOLUTION: The X-ray computer tomography is provided with: a plurality of X-ray generation elements 1a arrayed annularly surrounding a photographing area FOV and having electronic emitters; a plurality of X-ray detectors 3-1, 3-2 and 3-3 provided rotatably between the X-ray generation elements and the photographing area; and a plurality of collimators 5-1, 5-2, and 5-3 respectively fitted to the plurality of X-ray detectors.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过降低X射线计算机断层摄影系统中的散射辐射的影响，实现旋转速度的提高。解决方案：X射线计算机断层摄影设置有多个X射线产生元件1a，其围绕拍摄区域FOV环绕并具有电子发射器; 多个X射线检测器3-1,3-2和3-3可旋转地设置在X射线产生元件和拍摄区域之间; 以及分别装配到多个X射线检测器的多个准直器5-1,5-2和5-3。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JPH07254802A MODE CONVERTER 失效
公开(公告)号：JPH07254802A
公开(公告)日：1995-10-03
申请号：JP4376294
申请日：1994-03-15
申请人： TOSHIBA CORP
发明人： MITSUNAKA YOSHIKA
IPC分类号： H01P1/16
摘要： PURPOSE:To provide the mode converter with high precision easily manufactured in which the conversion efficiency for converting harmonic mode millimeter waves into a beam is high. CONSTITUTION:A degree of deformation of ruggedness in the circumferential direction is gradually increased from a circular shape from an entry 12 toward a radiation opening 13 with respect to the inner cross sectional shape in radial direction of a circular waveguide 11 through which millimeter waves in the harmonic mode are propagated and in which the millimeter waves are converted to a millimeter waves of the main mode. Thus, the millimeter waves are gradually focused to a prescribed position depending on the degree of deformation and then the energy density at an output terminal is minimized to enhance the conversion efficiency and the working of the inner face of the circular waveguide 11 is facilitated to improve the precision.

10. 发明专利

JPH0936615A ELECTROMAGNETIC WAVE MATCHING DEVICE 失效
公开(公告)号：JPH0936615A
公开(公告)日：1997-02-07
申请号：JP18692795
申请日：1995-07-24
申请人： TOSHIBA CORP
发明人： HIRATA YOSUKE , MITSUNAKA YOSHIKA , HAYASHI KENICHI , ITO YASUYUKI
IPC分类号： G21B1/11 , G21B1/00 , H01P5/08
摘要： PROBLEM TO BE SOLVED: To improve the efficiency of coupling to a transmission system as much as possible by changing the phase of an electromagnetic beam by a prescribed extent corresponding to the position of a reflection face. SOLUTION: The electromagnetic beam made incident from an entrance is reflected by plural phase correction mirrors 3 and 5, and this reflected electromagnetic beam is coupled to an external transmission system 10 through an exit. Phase correction mirrors 3 and 5 have such shapes that the phase of the electromagnetic beam made incident on reflection faces of these mirrors 3 and 5 is changed by prescribed extents corresponding to positions of reflection faces.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式