公开(公告)号：US06914373B2

公开(公告)日：2005-07-05

申请号：US10185794

申请日：2002-06-27

申请人： Takashi Itoh ,  Masahide Yamauchi ,  Koji Fujii ,  Keisuke Koga ,  Toru Kawase

发明人： Takashi Itoh ,  Masahide Yamauchi ,  Koji Fujii ,  Keisuke Koga ,  Toru Kawase

IPC分类号： H01J29/04 ,  H01J29/48 ,  H01J1/02 ,  H01J29/70

CPC分类号： H01J29/481

摘要： A cathode ray tube according to the present invention include a cold cathode electron gun, the cold cathode electron gun including a cold cathode array for emitting electrons through field emission, a gate electrode for controlling the field emission, a first selective electrode provided around the cold cathode array and the gate electrode, and a second selective electrode opposing the first selective electrode, and the second selective electrode is adapted to have a lower potential than the gate electrode and the first selective electrode. In accordance with this configuration, the divergence of electron beams emitted from any positions in the cold cathode array can be converged uniformly upon removing electron beams emitted at a great emission angle. This allows the electron beams thereafter to be made narrower by an electrostatic lens. As a result, the present invention can provide a cathode ray tube capable of forming a high-resolution image.

摘要翻译： 根据本发明的阴极射线管包括冷阴极电子枪，冷阴极电子枪包括用于通过场发射发射电子的冷阴极阵列，用于控制场致发射的栅电极，围绕冷端设置的第一选择电极 阴极阵列和栅电极以及与第一选择电极相对的第二选择电极，并且第二选择电极适于具有比栅电极和第一选择电极低的电位。 根据这种结构，从冷阴极阵列中的任何位置发射的电子束的发散度可以均匀地会聚在去除以大的发射角发射的电子束。 这样可以使静电透镜之后的电子束变窄。 结果，本发明可以提供能够形成高分辨率图像的阴极射线管。

公开(公告)号：US06794822B2

公开(公告)日：2004-09-21

申请号：US10293539

申请日：2002-11-12

申请人： Keisuke Koga ,  Toru Kawase ,  Masahide Yamauchi ,  Koji Fujii ,  Takashi Itoh

发明人： Keisuke Koga ,  Toru Kawase ,  Masahide Yamauchi ,  Koji Fujii ,  Takashi Itoh

IPC分类号： H01J2308

CPC分类号： H01J3/021 ,  H01J3/029 ,  H01J29/46 ,  H01J29/481 ,  H01J29/488

摘要： A field emission electron source includes: a field emission array portion composed of an insulation layer with a plurality of apertures, which is formed on a substrate, an extraction electrode formed on the insulation layer, and a plurality of cathodes formed respectively on the substrate in the plurality of apertures; a cathode base for fixing the field emission array portion; and an electron lens portion composed of a plurality of electrode members having a function of accelerating and converging an electron beam emitted from the field emission array portion. An emission axis of the electron beam emitted from the field emission array portion has a predetermined angle with respect to an optical axis of the electron lens portion. Thus, the field emission array portion can be protected from impact caused by ions generated in the electron lens portion, thereby improving the life of a field emission electron source.

摘要翻译： 场发射电子源包括：场致发射阵列部分，其由具有多个孔的绝缘层组成，形成在衬底上，形成在绝缘层上的引出电极和分别形成在衬底上的多个阴极 多个孔; 用于固定场致发射阵列部分的阴极基座; 以及电子透镜部分，其由具有加速和会聚从场发射阵列部分发射的电子束的功能的多个电极部件组成。 从场发射阵列部分发射的电子束的发射轴相对于电子透镜部分的光轴具有预定的角度。 因此，可以防止场发射阵列部分免受在电子透镜部分中产生的离子的影响，从而提高场发射电子源的寿命。

公开(公告)号：US06661166B2

公开(公告)日：2003-12-09

申请号：US10163146

申请日：2002-06-04

申请人： Masahide Yamauchi ,  Takashi Itoh ,  Koji Fujii ,  Keisuke Koga ,  Toru Kawase

发明人： Masahide Yamauchi ,  Takashi Itoh ,  Koji Fujii ,  Keisuke Koga ,  Toru Kawase

IPC分类号： H01J162

CPC分类号： H01J29/04 ,  H01J3/022

摘要： A cathode includes emitter tips provided on a substrate, a gate electrode with an electric field formed between the gate electrode and the emitter tips, and terminals and leads for supplying voltages to the emitter tips and the gate electrode, respectively. A shield electrode further is provided between the cathode and a control electrode, and the shield electrode has a cylindrical projecting portion projecting toward the cathode, through which electron beams pass. The disturbance of an electric field by the leads influences the electron beams; however, this can be prevented by the projecting portion. Because of this, even if the size of the cathode is reduced, the distortion of an electron beam spot on a phosphor screen can be reduced. As a result, a cathode-ray tube with high resolution can be provided at a low cost.

公开(公告)号：US06943491B2

公开(公告)日：2005-09-13

申请号：US10340160

申请日：2003-01-09

申请人： Masahide Yamauchi ,  Takashi Itoh ,  Koji Fujii

发明人： Masahide Yamauchi ,  Takashi Itoh ,  Koji Fujii

IPC分类号： H01J1/02 ,  H01J1/304 ,  H01J29/04 ,  H01J29/46 ,  H01J29/48 ,  H01J29/58

CPC分类号： H01J29/04 ,  H01J29/481 ,  H01J29/488 ,  H01J2201/30407 ,  H01J2229/481

摘要： In a picture tube device with a field-emission cold cathode, including a plurality of electron-emitting cathodes, and a lead electrode provided with a plurality of apertures surrounding the plurality of electron-emitting cathodes respectively, a surface of the lead electrode has a curved shape that is convex in an electron emission direction. This makes it possible to obtain a high-resolution and high-performance picture tube device that has an excellent focus performance over an entire beam current.

摘要翻译： 在具有场致发射冷阴极的显像管装置中，包括多个电子发射阴极，以及分别具有围绕多个电子发射阴极的多个孔的引线电极，所述引线电极的表面具有 在电子发射方向上凸起的弯曲形状。 这使得可以获得在整个束电流上具有优异的聚焦性能的高分辨率和高性能的显像管装置。

公开(公告)号：US06943489B2

公开(公告)日：2005-09-13

申请号：US10423098

申请日：2003-04-25

申请人： Takashi Itoh ,  Masahide Yamauchi ,  Koji Fujii

发明人： Takashi Itoh ,  Masahide Yamauchi ,  Koji Fujii

IPC分类号： H01J3/02 ,  H01J29/46 ,  H01J29/48 ,  H01J29/50 ,  H01J29/58 ,  H01J1/46

CPC分类号： H01J29/481 ,  H01J3/021 ,  H01J29/467

摘要： The CRT device comprises a cold cathode electron gun that includes cathodes, a peripheral focusing electrode, and an accelerating electrode. The cathode has a structure in which an emitter electrode and a gate electrode are joined together with an insulating layer interposed therebetween. The electric potential difference from the emitter electrode is 60V for the gate electrode, 0V for the peripheral focusing electrode, and 4.6 kV for the accelerating electrode.

摘要翻译： CRT装置包括一个包含阴极的冷阴极电子枪，外围聚焦电极和加速电极。 阴极具有其中发射极和栅电极之间具有绝缘层而接合在一起的结构。 与发射电极的电位差为栅电极为60V，外围聚焦电极为0V，加速电极为4.6kV。

公开(公告)号：US06605898B2

公开(公告)日：2003-08-12

申请号：US10047557

申请日：2002-01-15

申请人： Masahide Yamauchi ,  Kazunori Ohta ,  Masahiko Sukeno ,  Takashi Itoh

发明人： Masahide Yamauchi ,  Kazunori Ohta ,  Masahiko Sukeno ,  Takashi Itoh

IPC分类号： H01J2996

CPC分类号： H04N9/28 ,  H04N5/68

摘要： A CRT device with an electron gun provided therein includes control means for controlling voltages applied to a cathode and a control electrode constituting the electron gun. The control means exerts control on each electrode voltage so that the difference between the cutoff voltage of the cathode and the voltage of the control electrode is greater when the luminance level of a luminance signal separated from picture signal is higher, thereby minimizing a spot diameter.

公开(公告)号：US10215794B2

公开(公告)日：2019-02-26

申请号：US14763918

申请日：2013-02-12

申请人： Toru Fukasawa ,  Takashi Itoh ,  Hiroaki Miyashita

发明人： Toru Fukasawa ,  Takashi Itoh ,  Hiroaki Miyashita

IPC分类号： G01R31/12 ,  G01R29/08 ,  G01R35/00 ,  G01R31/14 ,  G01R29/10

摘要： A partial discharge sensor evaluation method includes a first frequency characteristic measuring process in which, in a state where a reference antenna 3 for which a frequency characteristic in an effective height is known and a measuring antenna 2 are installed on a flat ground 1 to be separated by a predetermined distance from each other, a transmission characteristic measurer 4 measures a frequency characteristic of a transmission characteristic between the reference antenna 3 and the measuring antenna 2, and a second frequency characteristic measuring process in which, in a state where a measured antenna 9 is installed inside a cylindrical ground 6 buried in a circular opening 5 formed at a position where the reference antenna 3 has been installed, the transmission characteristic measurer 4 measures the frequency characteristic of the transmission characteristic between the measured antenna 9 and the measuring antenna 2.

公开(公告)号：US09115420B2

公开(公告)日：2015-08-25

申请号：US13317848

申请日：2011-10-31

申请人： Takashi Itoh ,  Kento Hagio

发明人： Takashi Itoh ,  Kento Hagio

IPC分类号： C22C23/00 ,  C22C23/02 ,  B22F3/14 ,  C04B35/58 ,  C04B35/626 ,  C04B35/645 ,  C22C1/04 ,  C22C1/05

CPC分类号： C22C23/02 ,  B22F3/14 ,  C04B35/58085 ,  C04B35/6262 ,  C04B35/62665 ,  C04B35/645 ,  C04B2235/40 ,  C04B2235/401 ,  C04B2235/402 ,  C04B2235/405 ,  C04B2235/407 ,  C04B2235/428 ,  C04B2235/5436 ,  C04B2235/6567 ,  C04B2235/666 ,  C04B2235/81 ,  C22C1/0491 ,  C22C1/058

摘要： A thermoelectric material (and a method for producing the same) is essentially formed of an Mg2Si-based compound represented by the chemical formula Mg2-x-y-zAlxZnyMnzSi (x≠0, y≠0, z≠0, 0.04≦y/x≦0.6, and 0.013≦z/x≦0.075) wherein the total amount of Al, Zn, and Mn is 0.3 at % to 5 at %. Mg2-x-y-zAlxZnyMnz is provided in the form of an Mg alloy.

摘要翻译： 热电材料（及其制造方法）基本上由化学式Mg2-xy-zAlxZnyMnzSi（x≠0，y≠0，z≠0,0.04＆amp; nlE; y / x＆nlE）表示的Mg 2 Si系化合物 ; 0.6和0.013＆nlE; z / x＆nlE; 0.075）其中Al，Zn和Mn的总量为0.3原子％至5原子％。 Mg2-x-y-zAlxZnyMnz以Mg合金的形式提供。

公开(公告)号：US08345759B2

公开(公告)日：2013-01-01

申请号：US11744432

申请日：2007-05-04

申请人： Akira Nakagawa ,  Taizo Anan ,  Eishi Morimatsu ,  Takashi Itoh

发明人： Akira Nakagawa ,  Taizo Anan ,  Eishi Morimatsu ,  Takashi Itoh

IPC分类号： H04N7/12

CPC分类号： H04N19/00587 ,  H04N19/105 ,  H04N19/12 ,  H04N19/13 ,  H04N19/137 ,  H04N19/15 ,  H04N19/176 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61

摘要： A prediction error generating unit generates a predictive vector from the motion vectors of a plurality of adjacent blocks, and obtains a difference from a target vector. A plurality of variable-length coding units respectively encode the output of the prediction error generating unit with different encoding methods. A determining unit estimates the accuracy of the predictive vector generated by the prediction error generating unit based on the degrees of non-uniformity of the motion vectors of the plurality of adjacent blocks. A selecting unit selects one of the encoding results obtained by the plurality of variable-length coding units.

公开(公告)号：US07938045B2

公开(公告)日：2011-05-10

申请号：US11628528

申请日：2006-08-31

申请人： Takashi Itoh

发明人： Takashi Itoh

IPC分类号： B25B23/16 ,  B25G1/08

CPC分类号： B25B15/02 ,  B25F1/04 ,  B25G1/085

摘要： A driving tool including a guide groove shaped as a long hole receives a driver bit such that a portion thereof excluding its support is projectable outside of the handle body. The base material has the outline shape of the supporter of the driver bit and is formed so that it might project to the inner side in the inside wall of the circumference wall by the side of the central part of the guide groove of the top plate of the cap. The locking piece is formed in the inner wall of the open end of the cap so that it can stop the rotation part which can prevent a plurality of driver bits from entering the guide groove of the cap.

摘要翻译： 包括形成为长孔的引导槽的驱动工具接收驱动器钻头，使得不包括其支撑件的部分能够突出到手柄主体的外部。 基材具有驱动钻头的支撑件的轮廓形状，并且形成为能够通过顶板的引导槽的中心部分的侧面突出到圆周壁的内壁的内侧 这顶帽子。 锁定件形成在盖的开口端的内壁中，使得其可以停止旋转部分，这可以防止多个驾驶员位进入盖的引导槽。