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21. 发明专利

JPH06308485A DISPLAY DEVICE 失效
公开(公告)号：JPH06308485A
公开(公告)日：1994-11-04
申请号：JP9407293
申请日：1993-04-21
申请人： HITACHI LTD
发明人： YAMAGUCHI TOSHIHIRO , KABUTO NOBUAKI , KONUMA YOSHIHIRO
IPC分类号： G02B5/02 , G02F1/1335 , G02F1/13357
摘要： PURPOSE:To obtain the display device whose brightness is high and which can efficiently utilize light from a light source by making the shapes of plural prisms a pyramid state having one or more slant faces. CONSTITUTION:A conventional back light system constituted of the light source 1 such as a fluorescent tube, etc., a reflection box 2 whose inside surface is a mirror surface or a white surface, etc., and an opal diffusing board 3; and a plate-like prism sheet 401 in which plural quadrangular pyramid prisms are arrayed in a grid-state on one surface on the light source 1 side of a transmission type display panel 5 are arranged, and the flat surface side of the prism sheet 401 is on the diffusing board 3 side. In this case, as to the partially enlarged flat surface and the cross section of the prism sheet 401, the shape of the prism is the quadrangular pyramid state, and the cross section in a right- and-left direction and the cross section in an up-and-down direction are tooth- shaped. The diffused light made incident on the flat surface side of the prism sheet 401 is condensed in a normal direction by the prism sheet. Furthermore, a collecting rate is adjusted by the angle of the prism.

22. 发明专利

JPH0459180A WELD LINE DETECTOR 失效
公开(公告)号：JPH0459180A
公开(公告)日：1992-02-26
申请号：JP16821890
申请日：1990-06-28
申请人： HITACHI LTD , HITACHI KEIYO ENG
发明人： YAMAGUCHI TOSHIHIRO , NAKAJIMA JUN , SARUGAKU SHINICHI
IPC分类号： B23K9/127 , G05B19/18 , G05B19/404 , G06T1/00
摘要： PURPOSE:To stably carry out profile control of a welding torch by providing an arithmetic means of convolution integration in calculating the weld line position correction quantity by the distance data operated in the orthogonal direction to a weld line and detecting the weld line position by integration with the abovementioned data as a value to be convoluted. CONSTITUTION:At the time of teaching, data detection processing for one scanning is carried out in advance and a distance data column is obtained and stored and made to a reference value. This reference value is multiplied by the time series sequence formed from plural detection results obtained by measurement at each point of parts where these two series sequences overlap each other. When the result is made to a convolution integration value at that time, the time series sequence of one series is obtained by carrying out the same processing on each sampling time. Since an obtained value of each point is expressed as the integration value, an error and a noise component with respect to a data value are relatively suppressed. In other words, these are made smooth. Consequently, the profile control of the welding torch can be stably carried out.

23. 发明专利

JPH0273227A SURFACE LIGHT SOURCE DEVICE 失效
公开(公告)号：JPH0273227A
公开(公告)日：1990-03-13
申请号：JP22461588
申请日：1988-09-09
申请人： HITACHI LTD
发明人： YAMAGUCHI TOSHIHIRO , SATO KOZO , INOUE FUMIO
IPC分类号： G02F1/1335 , G02F1/13357 , G09F9/00
摘要： PURPOSE:To improve the utilization factor of a light beam from a light source by arranging an opening type fluorescent tube whose opening part is shaped like a convex lens on an optical axis of a cylindrical lens. CONSTITUTION:The opening type fluorescent tube 1 is arranged on one end part of a box body 2, and a cylindrical lens 5 is arranged on a position separated therefrom by a prescribed distance. By forming an opening part of the fluorescent tube 1 in a shape of a convex lens, a light beam emitted from the opening part is condensed and more emitted light beams are made incident on the lens 5. By such a constitution, a light beam 8-1 which transmits through the lens 5 becomes roughly parallel rays. The light beam 8-1 is reflected by semi- transmissive mirrors 6-1 - 6-4 and a total reflection mirror 7 arranged on an optical axis of the lens 5. These reflected light beams 9-1 - 9-5 are all quasi- parallel rays and its intensity is equal, and to a transmissive display panel 3, uniform quasi-parallel rays are made incident extending over the whole surface. Therefore, an emitted light beam 10 from the panel 3 becomes an optical component having good contrast to a liquid crystal panel.

24. 发明专利

JP2001185567A SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREFOR 失效
公开(公告)号：JP2001185567A
公开(公告)日：2001-07-06
申请号：JP36363499
申请日：1999-12-22
申请人： HITACHI LTD , HITACHI YONEZAWA ELECTRONICS
发明人： YAMAGUCHI TOSHIHIRO
IPC分类号： H01L21/56 , H01L23/50
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a semiconductor device, which can ensure sufficient margin of stand off enough, and can prevent the turning of sealing material into a lead terminal part. SOLUTION: This QFN structure of surface-mounting-type package is composed of a semiconductor chip mounted on a tub, and a plurality of leads electrically connected to the pad on this semiconductor chip through a wire, a sealing material to seal the tube, a semiconductor chip, a wire, and a lead such that is exposes the downside of these leads, and others, and out of the molds used for sealing elements with this sealing material, especially a lower mold 11 has a structure with the section that the lead being engage with is recessed, and that the section to come under the tub is projected, within the range of being sealed with a sealing material, excluding the section that the lead is to engage with, and also the height of the section of the projection under the tab is set, based on the thickness of the lead.

25. 发明专利

JPH11284093A SEMICONDUCTOR DEVICE AND ITS MANUFACTURE 失效
公开(公告)号：JPH11284093A
公开(公告)日：1999-10-15
申请号：JP8073798
申请日：1998-03-27
申请人： HITACHI LTD , HITACHI YONEZAWA ELECTRONICS
发明人： YAMAGUCHI TOSHIHIRO , IMURA KENICHI , ICHITANI MASAHIRO , HARUTA AKIRA
IPC分类号： H01L23/12 , H01L21/50 , H01L21/52 , H01L23/28 , H01L23/50
摘要： PROBLEM TO BE SOLVED: To obtain a semiconductor device which can fill a part between a package substrate and a lead frame with resin for encapsulation, and makes the device of high reliability and moreover high performance. SOLUTION: In this semiconductor device, a sticking part 1a in a lead frame 1 for manufacturing process is stuck to a package substrate 2 through the use of an adhesive agent, and a semiconductor chip set on a package substrate 2 and the sticking part 1a in the lead frame 1 are encapsulated with resin for encapsulation. The width of a lead 1b attached to the sticking part 1a is set at most 80% of the maximum film thickness of the lead 1b.

26. 发明专利

JPH06301019A DISPLAY DEVICE 失效
公开(公告)号：JPH06301019A
公开(公告)日：1994-10-28
申请号：JP8482293
申请日：1993-04-12
申请人： HITACHI LTD
发明人： TAKASHIMIZU SATOSHI , YAMAGUCHI TOSHIHIRO , KABUTO NOBUAKI
IPC分类号： G02F1/1335
摘要： PURPOSE:To embody the display device which minimizes the degradation in brightness of the display elements of the display device adequate for mounting on an instrument panel of an automobile by providing one sheet of filter with a visual field angle limiting function and a heating function in combination. CONSTITUTION:A conductive light shielding film 2 is formed of a louver structure having plural wings on a transparent substrate 1. This conductive light shielding film 2 limits the visual field angle so as to emit only the light near a front surface by limiting the upward emission of the light from a back transmitted through a liquid crystal panel 6, thereby preventing the reflection of the displayed image on a front windshield. A switch control circuit 9 turns a switch 5 on to make the conductive light shielding film 2 generate heat when the temp. detected by a temp. detecting sensor 8 is below the prescribed value. As a result, the liquid crystal panel 6 is heated and the response characteristic in low-temp. environment is improved.

27. 发明专利

JPH05249456A 失效
公开(公告)号：JPH05249456A
公开(公告)日：1993-09-28
申请号：JP4577692
申请日：1992-03-03
申请人： HITACHI LTD
发明人： YAMAGUCHI TOSHIHIRO , INOUE FUMIO , TAKASHIMIZU SATOSHI
IPC分类号： G02F1/1335
摘要： PURPOSE:To obtain the liquid crystal display device which can change display brightness over a wide range, is hardly deteriorated in images by the effect of heat and is suitable for mounting on a vehicle. CONSTITUTION:This liquid crystal display device has a liquid crystal display part having at least one sheet of polarizing plates 3, 4, a light source 6 for transmitting light through the liquid crystal display part and a rotatable polarizing plate 5 disposed between the liquid crystal display part and the light source 6. The rotatable polarizing plate 5 is formed as a polarizing plate of a dye system having dichromatic dyestuff.

28. 发明专利

JPH0557642A INDUSTRIAL ROBOT CONTROL DEVICE 失效
公开(公告)号：JPH0557642A
公开(公告)日：1993-03-09
申请号：JP23687291
申请日：1991-08-26
申请人： HITACHI LTD , HITACHI KEIYO ENG
发明人： SUZUKI MASAFUMI , TERAMOTO KAZUYOSHI , SARUGAKU SHINICHI , ANDO TAKESHI , YAMAGUCHI TOSHIHIRO , YOKOYAMA SHIGEYOSHI , SESHIMO TATSUYA , HIROBE KENJI
IPC分类号： B23K9/12 , B23K9/127 , B25J9/10 , G05B19/4093
摘要： PURPOSE:To remove a re-interpolation in the case of interpolation end by correcting a weaving frequency so that a weaving superimposition amount may become zero corresponding to the moving distance and moving speed of a robot in a section between an interpolation start point and end point. CONSTITUTION:An interpolation distance L and vector IL are calculated by an interpolation start point Ps and interpolation end point Pc and a corrected frequency F' is calculated so that a weaving amount at the interpolation end point may become zero. Then, the position IPi of a work point is calculated and further, a corrected weaving frequency is calculated when the operation speed or weaving frequency of the work point is changed during interpolation operation. A weaving phase and an interpolation accumulated time in a present interpolation period are calculated and after calculating the weaving vector based on a renewed phase, a weaving vector IW is added to the position vector IPi of the work point and a position vector IPi' to be approached in the present interpolation period is calculated. The change of a joint angle corresponding to the position vector IPi' carried out so as to move respective actuators.

29. 发明专利

JPH0445423A COLOR LIQUID CRYSTAL DISPLAY PANEL 失效
公开(公告)号：JPH0445423A
公开(公告)日：1992-02-14
申请号：JP15280490
申请日：1990-06-13
申请人： HITACHI LTD
发明人： YAMAGUCHI TOSHIHIRO , KABUTO NOBUAKI
IPC分类号： G02F1/1335 , G09F9/00
摘要： PURPOSE:To obtain the product having a high contrast and high image quality and to improve productivity by using plural polarizing plates on a substrate side and disposing the polarizing plates in superposition by varying the polarization directions from each other in such a manner that the optically rotatory light of respectively different wavelength regions past a TN liquid crystal layer is shielded. CONSTITUTION:The polarization directions of the polarizing plates 1-1 to 1-3 are so set that the transmitted light is kept at a minimum level with respect to the light of the respective wavelength regions of green (G), red (R) and blue (B) as the form of disposition of these polarizing plates. Since the polarizing plate 1-1 is in the orthogonal relation with the polarization direction N-1, only the green light is shut off and the red and blue light is transmitted. The red light is shut off by the next polarizing plate 1-2 and further, the blue light is shut off by the polarizing plate 1-3. Then, the rays of R, G, B are completely shut off and the leak light and the coloration of the black chromatic colors by the optical rotatory power of the liquid crystal are drastically decreased when the liquid crystal segments make black display. The high contrast and the high image quality are thus obtd.

30. 发明专利

JPS6188429A Horizontal deflection circuit 失效
标题翻译：水平偏转电路
公开(公告)号：JPS6188429A
公开(公告)日：1986-05-06
申请号：JP20816384
申请日：1984-10-05
申请人： Hitachi Ltd
发明人： INOUE FUMIO , SHIMIZU TOSHIHARU , YAMAGUCHI TOSHIHIRO
IPC分类号： H01J29/76 , H01J29/70 , H04N3/237
CPC分类号： H01J29/701
摘要： PURPOSE:To correct the linearity of a horizontal scanning beam in a television receiver by installing magnets near the right and the left ends of the opening of the deflection york in such a manner as to equalize the polarities of the magnets relative to the horizontal scanning beam. CONSTITUTION:Linear correction magnets 3 and 4 are installed near the right and the left ends of the opening of a deflection york 2 attached to a picture tube 1 in such a manner as to locate the S-poles on the scanning initiation side and locate the N-poles on the scanning termination side. An upward magnetic line of force is formed between the magnets 3 and 4 and the magnetic field strength at the start and the end of horizontal deflection is made greater than that at the geometrical center of the york 2. Accordingly, it is possible to easily correct horizontal linear strain which expands at the scanning initiation end and contracts at the scanning termination end without spending reactive power.
摘要翻译：目的：通过以偏移约束的开口的右端和左端附近安装磁体，以使磁体相对于水平扫描光束的极性相等来校正电视接收机中的水平扫描光束的线性。构成：将线性校正磁体3和4安装在附接到显像管1的偏转约束2的开口的右端和左端附近，以便将S极定位在扫描起始侧，并将扫描终端侧的N极。在磁体3和4之间形成向上的磁力线，并且在水平偏转开始和结束时的磁场强度大于在纽约2的几何中心处的磁场强度。因此，可以容易地校正水平线性应变在扫描起始端处膨胀并且在扫描终止端处收缩而不消耗无功功率。

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