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公开(公告)号：JPH04268799A
公开(公告)日：1992-09-24
申请号：JP3030991
申请日：1991-02-25
Applicant: NEC CORP
Inventor： HARADA TAKASHI
Abstract: PURPOSE:To enable an electromagnetic shielding chamber to be enhanced in shielding capacity by a method wherein a high frequency current is prevented from leaking from an electromagnetic shielding panel mounting bracket, an electromagnetic shielding panel, and a contact part between the door and the wall of an electromagnetic shielding chamber. CONSTITUTION:An electromagnetic shielding chamber is composed of electromagnetic shielding panels 2 formed of a core material 4 and a metal plate 3 and plate-like coupling pieces 5 which joining the electromagnetic shielding panels 2 together. At the joint of the electromagnetic shielding panels 2, magnetic substances 1 are buried in a row or rows in a part of the metal plate 3 in contact with the coupling piece 5 in parallel with the end of the shielding panel 2 to constitute a magnetic substance row 1. The part where the magnetic substance row 1 is buried is enhanced in equivalent impedance at its surface, so that a high frequency current is prevented from leaking from the contact part.
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公开(公告)号：JPH0496013A
公开(公告)日：1992-03-27
申请号：JP21390990
申请日：1990-08-13
Applicant: NEC CORP , NIPPON ELECTRIC ENG
Inventor： TAGAI MITSUNORI , HARADA TAKASHI
IPC: G02B23/00
Abstract: PURPOSE:To easily retrieve a constellation regardless of age by specifying the constellation from the touch panel or the voice input part of a handy personal computer by touch input or a voice and comparing it with the information on the constellation with which a telescope is made to point to the constellation. CONSTITUTION:A floppy disk (FDD) where a program is inputted and a hard disk (HDD) where a data base relating to the characteristic of the constellation is stored are incorporated in the handy type personal computer 5. Then, the data base of the constellation stored in the HDD and a received input are compared. Based on the comparison, the name thereof is displayed on the touch panel screen 6a of the touch panel 6 and the content thereof is outputted by the voice from the voice output part 8 besides. When the received input does not coincide with the data base of the constellation, data for driving the motor of an equatorial 2 is transmitted to an equatorial controller 10 by a first weak electric wave 4 through a tranceiver 9. Thus, the equatorial 2 is moved to a position where the constellation exists and the constellation is retrieved.
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公开(公告)号：JPH03130876A
公开(公告)日：1991-06-04
申请号：JP26979689
申请日：1989-10-17
Applicant: NEC CORP
Inventor： HARADA TAKASHI
IPC: G06F17/50
Abstract: PURPOSE:To reduce the capacity of a storage means required for the depth- priority route search by storing a hierarchical element identification name only when the circuit connection data having a hierarchical structure passes through each element without performing the hierarchical evolution to the circuit connection data and checking the presence or absence of same names. CONSTITUTION:A hierarchical circuit structure storage means 1 is provided together with a searched element identification name storage means 2, and a depth-priority searching means 3. The means 1 expresses the connecting relation between the terminals of a circuit element and then holds only the reference relation with no evolition if the element has a hierarchical structure. The means 2 stores the hierarchical identification name of the element as a passed mark at pass through the least element. Then the means 3 checks whether the same identification names are already stored in each element or not. In such a constitution, an extremely large storage area is not required.
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公开(公告)号：JPS6482696A
公开(公告)日：1989-03-28
申请号：JP24213287
申请日：1987-09-25
Applicant: NEC CORP
Inventor： HARADA TAKASHI
IPC: B32B7/02 , B32B5/26 , D04H1/42 , D06M11/00 , D06M11/83 , D06M101/00 , D06M101/16 , D06M101/30 , H01Q17/00 , H05K9/00
Abstract: PURPOSE:To form a radio wave absorber in which its height and weight are reduced by composing it of polymer fiber nonwoven fabric coating a conductor. CONSTITUTION:A laminated structure 1 in which nonwoven fabrics dispersed with polymer fiber 2 coated with metal are laminated is formed on a metal surface 3. The nonwoven fabrics for forming the layers are formed, for example, by dispersing nickel-coated polyacrylic nitrile fiber 2 in binder-fiber 4 made of polyethylene and polypyrene, being extremely light. As the content ratio of the fiber 1 dispersed in the fabric is increased, the equivalent dielectric constant epsilone of the whole fabric is increased in both real section epsilone' and imaginary section epsilone'', and its magnetic permeability is increased. Since the structure 1 of such multilayer has a small variation in the equivalent dielectric constant of adjacent layers when an electromagnetic wave incident to the surface 5 of the structure is propagated in the structure 1, the reflection of the wave in the boundary of the layers is suppressed, and the electromagnetic energy is gradually intaken to the layers having larger losses. Therefore, preferable electromagnetic wave absorbing characteristic is obtained in a wide band.
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公开(公告)号：JPS6368934A
公开(公告)日：1988-03-28
申请号：JP21481386
申请日：1986-09-10
Applicant: NEC CORP , NIPPON ELECTRIC ENG
Inventor： TANAKA KAZUO , HARADA TAKASHI
Abstract: PURPOSE:To reduce variation at the start and end of a task and to reduce influence upon other systems by comparing the expected processing time of the task with the remaining time and increasing the priority of the task. CONSTITUTION:When the processing start of a task B is requested while a task A having high priority is run by a CPU 1 by referring to a task-A control information storage part 6, the mean processing time of the task B in a storage part 9 for expected processing time calculation and an idle task control information storage part 8, etc., are referred to. Then, the remaining time up to the end time of the processing by an external system time 2, actual time storage part 3, etc., is compared with the mean processing time of the task B and when the processing time is smaller, the start time and end time are determined so that the task B is finished by the end time and then written in a task-B control information storage part 7. The priority of the task B in a priority allocation storage part 4 is made highest at the start time and the task B is started. Consequently, the variation at the start and end of the task is reduced and the influence of data absence, etc., due to start or end time delay is made small.
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Patent Agency Ranking
公开(公告)号：JPS6245100A
公开(公告)日：1987-02-27
申请号：JP18473585
申请日：1985-08-21
Applicant: NEC CORP
Inventor： HARADA TAKASHI , HATAKEYAMA KENICHI , INUI TETSUJI
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公开(公告)号：JPS6242498A
公开(公告)日：1987-02-24
申请号：JP18235185
申请日：1985-08-19
Applicant: NEC CORP
Inventor： HATAKEYAMA KENICHI , HARADA TAKASHI , INUI TETSUJI
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公开(公告)号：JP2012175422A
公开(公告)日：2012-09-10
申请号：JP2011035828
申请日：2011-02-22
Applicant: Nec Corp , Nec Network Products Ltd , Necネットワークプロダクツ株式会社 , 日本電気株式会社
Inventor： KURAMOTO AKIO , HARADA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To improve durability and weather resistance while reducing the manufacturing cost.SOLUTION: An antenna device includes: a radiation element 2 radiating an electric wave; an electric power supply part 3 supplying electric power to the radiation element 2; a case 10 covering the radiation element 2 and formed by a conductor; and a slot 11 provided at a position of the case 10 which faces the radiation element 2 and electrically connecting with the electric wave radiated from the radiation element 2.
Abstract translation: 解决的问题：提高耐久性和耐候性，同时降低制造成本。 解决方案：一种天线装置包括：辐射电波的辐射元件2; 向辐射元件2提供电力的电力供给部3; 覆盖辐射元件2并由导体形成的壳体10; 以及设置在壳体10的面对辐射元件2并与从辐射元件2辐射的电波电连接的位置的槽11.版权所有（C）2012，JPO＆INPIT
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公开(公告)号：JP2010200211A
公开(公告)日：2010-09-09
申请号：JP2009045278
申请日：2009-02-27
Applicant: Nec Corp , Shibaura Institute Of Technology , 学校法人 芝浦工業大学 , 日本電気株式会社
Inventor： HANGUI EIJI , YAMAMOTO SHIO , KURAMOTO AKIO , TAURA TORU , HARADA TAKASHI , IWASAKI HISAO
Abstract: PROBLEM TO BE SOLVED: To provide a planar antenna having excellent directional characteristics.
SOLUTION: As a planar antenna 1 having directivity, the antenna includes: a first radiation element 11; a second radiation element 21 which extends in parallel with the first radiation element 11, at a position substantially away from the first radiation element 11 by λ/4; a connecting part 30 electrically connecting the first radiation element 11 and the second radiation element 21; a ground plate 40 disposed in parallel with the connecting part 30; and a feeding part 50 between the ground plate 40 and the first radiation element 11.
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 要解决的问题：提供具有优异的方向特性的平面天线。 解决方案：作为具有方向性的平面天线1，天线包括：第一辐射元件11; 第二辐射元件21，其在与第一辐射元件11基本上远离第一辐射元件11的位置处延伸λ/ 4; 电连接第一辐射元件11和第二辐射元件21的连接部分30; 与连接部30平行设置的接地板40; 以及在接地板40和第一辐射元件11之间的馈电部分50.版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2009260195A
公开(公告)日：2009-11-05
申请号：JP2008110396
申请日：2008-04-21
Inventor： OSHIMA DAISUKE , SASAKI HIDEKI , HARADA TAKASHI , MORI KENTARO
CPC classification number: H01L2224/16225
Abstract: PROBLEM TO BE SOLVED: To secure the flexibility of a layout of signal wiring, and to suppress voltage variations of a plurality of kinds of power sources and the deterioration of signal quality. SOLUTION: A printed wiring board has n kinds of power sources, and is provided with a plurality of power source wiring including the first power source wiring of a first voltage V1 to n-th power source wiring of n-th voltage Vn, and ground wiring making pairs with the power source wiring. At least three wiring layers include a ground layer 22 in which the ground wiring is formed, and wiring layers from a first wiring layer 23 in which the first power source wiring is formed to the n-th wiring layer in which the n-th power source wiring is formed, wherein the wiring layers from the first wiring layer 23 to the n-th wiring layer and the ground layer 22 are laminated sequentially, when a distance from the ground layer 22 to the n-th wiring layer is set to Dn, α1×Dn/Dm≤Vn/Vm COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：确保信号布线布局的灵活性，并且抑制多种电源的电压变化和信号质量的恶化。 解决方案：印刷电路板具有n种电源，并且设置有多个电源布线，其包括第n电压Vn的第一电压V1至第n电源布线的第一电源布线 ，接地线与电源线接合。 至少三个布线层包括其中形成接地布线的接地层22和从形成第一电源布线的第一布线层23到第n布线层的布线层，其中第n布线层 当从接地层22到第n布线层的距离设定为Dn时，形成源极布线，其中从第一布线层23到第n布线层和接地层22的布线层顺次层叠 ，α1×Dn /Dm≤Vn/ Vm <α2×Dn / Dm，则满足1≤m
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