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

JP2002023028A OPTICAL COMMUNICATION EQUIPMENT 失效
公开(公告)号：JP2002023028A
公开(公告)日：2002-01-23
申请号：JP2001173721
申请日：2001-06-08
申请人： HITACHI LTD
发明人： TATENO KIMIO , KATO TAKESHI , HIRATAKA TOSHINORI , YOSHIDA KOJI , TAKAHASHI SHOICHI , NAKA HIROSHI
IPC分类号： G02B6/42 , H01S5/022
摘要： PROBLEM TO BE SOLVED: To surely prevent the deterioration of optical parts and to lower the error rate of information transmission. SOLUTION: A pad 5 and a lead frame 6 are embedded in a resin case 7, a silicon substrate 4 is conductively adhered on the pad 5, and a semiconductor laser 1 and a photodetector 3 are formed on the silicon substrate 4. Then, the silicon substrate 4 is provided with an optical fiber 2, transparent resins are filled in the semiconductor laser 1, the optical fiber 2, the photodetector 3 and the silicon substrate 4, and a resin case 7 is covered with a lid (not shown in figure) composed of a resin. Then, the resin case 7 and the lid are fixed by an adhesive (not shown in figure), and an air hole 9 curved equally to or more than the diameter is provided at a part where the resin case 7 and the lid are overlapped.

2. 发明专利

JP2001083372A OPTICAL COUPLING DEVICE 失效
公开(公告)号：JP2001083372A
公开(公告)日：2001-03-30
申请号：JP25530999
申请日：1999-09-09
申请人： HITACHI LTD
发明人： FUKUDA KAZUYUKI , SHIMAOKA MAKOTO , KIKUCHI SATORU , YOSHIDA KOJI , NAKA HIROSHI
IPC分类号： G02B6/32 , G02B6/42 , H01L31/0232 , H01L33/58 , H01L33/00
摘要： PROBLEM TO BE SOLVED: To optically couple a semiconductor device and an optical fiber by an easy work and to prevent changes in output of light due to the changes in temperature. SOLUTION: The optical coupling device consists of a laser diode 1, a photodiode 10, a silicon substrate 3 mounting these semiconductor devices 1, 10, an optical fiber 14 optically coupled to the semiconductor devices 1, 10 and transmitting laser light inside, and a lens 4 mounted on the silicon substrate 3 to optically couple the semiconductor devices 1, 10 and the optical fiber 14. The silicon substrate 3 is coated with an electrically conductive or insulating sheet film 2 where the semiconductor devices 1, 10 are to be mounted, and the laser diode 1 is disposed on the silicon substrate 3 through the sheet film 2.

3. 发明专利

JPH11295561A OPTICAL SEMICONDUCTOR DEVICE AND MANUFACTURE THEREFOR 失效
公开(公告)号：JPH11295561A
公开(公告)日：1999-10-29
申请号：JP9916498
申请日：1998-04-10
申请人： HITACHI LTD
发明人： FUKUDA KAZUYUKI , SHIMAOKA MAKOTO , TAKAHASHI SHOICHI , YOSHIDA KOJI , KIKUCHI SATORU , ISHIKAWA TADAAKI
IPC分类号： G02B6/32 , G02B6/42 , H01L31/0232 , H01L33/58 , H01L33/00
摘要： PROBLEM TO BE SOLVED: To adjust the position of an aspherical lens by easy work in a short time without using a special equipment and to optically couple a semiconductor element and an optical fiber with high efficiency. SOLUTION: In this optical semiconductor device provided with a laser diode 1, a photodiode 2, a silicon substrate 4 for loading the semiconductor elements 1 and 2, the optical fiber optically coupled with the semiconductor elements 1 and 2 for internally transmitting laser beams and the aspherical lens 3 loaded on the silicon substrate 4 for optically coupling the semiconductor elements 1 and 2 and the optical fiber, the silicon substrate 4 is provided with a V groove 5 whose axis is in almost the same direction as the optical axis direction of the laser beam between the semiconductor elements 1 and 2 and the optical fiber and the aspherical lens 3 is directly fixed to the V groove 5 so as to bring the outer peripheral surface 15 into surface contact at least on two surfaces or line contact at least at two parts with the V groove 5.

4. 发明专利

JPH11109188A MOUNTING SUBSTRATE OF SEMICONDUCTOR ELEMENT AND OPTICAL FIBER 失效
公开(公告)号：JPH11109188A
公开(公告)日：1999-04-23
申请号：JP27083697
申请日：1997-10-03
申请人： HITACHI LTD
发明人： FUKUDA KAZUYUKI , SHIMAOKA MAKOTO , YOSHIDA KOJI , ISHII TOSHIAKI , MIURA TOSHIO , TAKAHASHI SHOICHI , KIKUCHI SATORU
IPC分类号： G02B6/42 , H01L31/10 , H01S5/00 , H01S3/18
摘要： PROBLEM TO BE SOLVED: To provide an optical module which is capable of stably achieving the optical coupling between a laser beam diode and an optical fiber even when a silicon substrate is thermally deformed, and excellent in reliability by providing a second heat deformation absorbing groove in the silicon substrate on which the laser beam diode and the optical fiber to be optically coupled therewith are mounted at the position away from the laser beam diode. SOLUTION: A V-shaped groove 2 for mounting an optical fiber is formed through the anisotropic etching on a silicon substrate 1 on which a laser beam diode, a photodiode, and the optical fiber are mounted on the same substrate. A first groove 3 and a second groove 4 orthogonal to the V-shaped groove 2 are respectively machined. The deformation is absorbed by the second groove 4 when the silicon substrate 1 is thermally deformed by setting the depth of the second groove 4 to be larger than the depth of the first groove 3. The deformation is absorbed because the silicon substrate 1 is easy to bend at the groove 4 part by setting the depth of the second groove 4 to be larger than one half of the thickness of the silicon substrate 1.

5. 发明专利

JPH09191131A OPTICAL ASSEMBLY 失效
公开(公告)号：JPH09191131A
公开(公告)日：1997-07-22
申请号：JP361196
申请日：1996-01-12
申请人： HITACHI LTD
发明人： YOSHIDA KOJI
IPC分类号： H01L31/02 , H01L33/34 , H01L33/40 , H01L33/48 , H01L33/00
摘要： PROBLEM TO BE SOLVED: To improve the accuracy of securing an optical semiconductor element on a mount board to be mounted with an optical element in the direction of bonding, and prevent a metal alloy for bonding from flowing out to the light receiving surface or light emitting surface of the semiconductor element, by forming a step on the mount board in the position where the optical semiconductor element is to be secured. SOLUTION: A terrace 4 is formed on a silicon substrate 3 by etching, and a lower clad layer is formed. The lower clad layer is polished to the level of the terrace 4, and then a core layer is deposited. A pattern is formed, and recesses 5 of step structure, a waveguide 8 and a mating mark 7 are formed. An upper clad layer is formed, and then the terrace 4 is exposed. An optical semiconductor element 1 is fixed on the terrace 4 for alignment. Because of the presence of the recesses 5 for joining, a metal alloy film 6 for bonding stays within the recesses 5, and is prevented from flowing out to the end faces of semiconductor elements to be mounted. The semiconductor elements 2 are secured in an element mounting sections, and are connected with each other using a gold wire.

6. 发明专利

JPH04186320A LIQUID CRYSTAL DISPLAY ELEMENT 失效
公开(公告)号：JPH04186320A
公开(公告)日：1992-07-03
申请号：JP31687890
申请日：1990-11-21
申请人： HITACHI CHEMICAL CO LTD , HITACHI LTD
发明人： KIMURA YOICHI , MINAMIZAWA HIROSHI , NOMURA YOSHIHIRO , YOSHIDA KOJI , MUKOYAMA YOSHIYUKI , MORINAGA TAKASHI , YOKOKURA HISAO , KONDO KATSUMI
IPC分类号： G02F1/1337
摘要： PURPOSE:To form a film free from coloration at a relatively low temperature in a short time and suppress the influence applied to a substrate, color filter, transparent electrode, etc. and improve reliability by using the polyamide resin having specific repetitive units for the orientation control film. CONSTITUTION:The orientation control film of a liquid crystal element is constituted of the polyamide resin having the repetitive unit shown by the formula I. In the formula I, R' is a bivalent residual group which is the result of removing the amino group from diamine. R is the straight chained or branched chained alkyl group having the number of carbon atoms of 1 - 30. This polyamide polymer can not be dissolved in liquid crystal and water, and this polymer is dissolved into a specific solvent, and applied on a substrate, and after heating drying, the orientation control film is obtained after rubbing. Accordingly, coloration is prevented, and the film having a high strength can be prepared at a relatively low temperature in a short time, and no influence is given to the substrate, color filter, transparent electric conductive film, etc., and the superior contrast and visual characteristic can be obtained without reducing yield, and the liquid crystal display element having the reliability for a long period free from the generation of the orientation disorder even after the heat treatment for a long period can be obtained.

7. 发明专利

JP2003229636A SEMICONDUCTOR LASER ELEMENT AND SEMICONDUCTOR LASER DEVICE 审中-公开
公开(公告)号：JP2003229636A
公开(公告)日：2003-08-15
申请号：JP2002028956
申请日：2002-02-06
申请人： HITACHI LTD
发明人： KIKUCHI SATORU , YOSHIDA KOJI , KUBOKI KATSUHIKO , YAMAMOTO MASAKATSU , HATTORI SHINICHI
IPC分类号： H01S5/026 , H01S5/50
摘要： PROBLEM TO BE SOLVED: To enable reducing in size of a transmitter and decreasing of a cost by integrating an attenuator of an optical signal with a semiconductor laser element. SOLUTION: The semiconductor laser element comprises a light source for emitting a laser beam and a modulator for modulating the beam and integrated with the light source on a semiconductor substrate, so that the attenuator for regulating the optical output of the beam is formed in a similar layer structure to the light source on the substrate. Thus, the attenuator which has heretofore been a separate component can be integrated with the laser element by applying a conventional element forming process by constituting the attenuator similarly to the light source. COPYRIGHT: (C)2003,JPO

8. 发明专利

JP2003066285A Optical coupler, its manufacturing method and manufacturing device, and control program for its manufacturing 审中-公开
标题翻译：光耦合器及其制造方法和制造装置及其制造控制程序
公开(公告)号：JP2003066285A
公开(公告)日：2003-03-05
申请号：JP2001254603
申请日：2001-08-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUKUDA KAZUYUKI , NASU SHINGO , SHIMAOKA MAKOTO , KIKUCHI SATORU , YOSHIDA KOJI
IPC分类号： G02B6/42 , G02B7/02 , H01S5/022
摘要： PROBLEM TO BE SOLVED: To provide a technique for highly accurately assembling a laser light converging lens in an optical coupler for light transmission by easy work.
SOLUTION: A coupling lens 3 is rotated in the pressed state after being positioned in a prescribed position on an aluminum film 14 in a recessed part of a substrate member 2 to which a semiconductor light emitting element is fixed, and the outer peripheral part of the coupling lens 3 is joined to the aluminum film 14.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种用于通过简单的工作高度精确地组合用于光传输的光耦合器中的激光聚光透镜的技术。解决方案：耦合透镜3在固定有半导体发光元件的基板部件2的凹部中的铝膜14上的规定位置之后被按压状态旋转，耦合透镜3连接到铝膜14。

9. 发明专利

JP2001116958A OPTICAL MODULE, MOUNTING BODY OF OPTICAL MODULE AND METHOD FOR MOUNTING OPTICAL MODULE 失效
公开(公告)号：JP2001116958A
公开(公告)日：2001-04-27
申请号：JP29180699
申请日：1999-10-14
申请人： HITACHI LTD
发明人： SHISHIKURA MASATO , YOSHIDA KOJI , TATENO KIMIO , SANO HIROHISA
IPC分类号： G02B6/42 , H01L31/0232 , H01L33/48 , H01S5/022 , H01L33/00
摘要： PROBLEM TO BE SOLVED: To provide an optical module capable of collectively reflow mounting with electronic parts and moreover capable of simultaneously securing mechanical strength durable against a large stress when an optical fiber is attached and detached. SOLUTION: This optical connector attaching and detaching type reflow mounting optical module having a fixing structure with a mounting board provided with a receptacle part 2 which is attached to an optical module main body 3 and is attachable and detachable to and from an optical connector 1, reflow mounting electric terminals 4 corresponding to the land 8 of the mounting board 6 and moreover stud parts 5 which are fitted into fixing holes 7 of the mounting board 6 is used.

10. 发明专利

JP2000338365A OPTICAL COMMUNICATION EQUIPMENT, OPTICAL MODULE AND OPTICAL SYSTEM 失效
公开(公告)号：JP2000338365A
公开(公告)日：2000-12-08
申请号：JP15318599
申请日：1999-06-01
申请人： HITACHI LTD
发明人： YOSHIDA KOJI , SHISHIKURA MASATO , TATENO KIMIO , TSUJI SHINJI
IPC分类号： G02B6/36 , G02B6/42
摘要： PROBLEM TO BE SOLVED: To obtain simple and inexpensive optical communication equipment by preparing the member by which a plug is held so as to be attachable to and detachable from the direction crossing the longitudinal direction of an optical waveguide and a plug holding part is moved in the direction crossing the attachable and detachable direction of the plug. SOLUTION: This equipment is provided with the member by which a plug is held so as to be attachable to and detachable from the direction crossing the longitudinal direction of an optical waveguide and a plug holding part is moved in the direction crossing the attachable and detachable direction of the plug. In the equipment, meshing 13 is formed in the member mounting optical parts i.e., a package main body part 11 and a connector 12 having a fiber 16 by the plug (or connector) 12. The height that a ferrule is inserted into a sleeve 18 is controlled by the meshing 13. Also, a taper 15 is formed in the spring contact part of the plug (connector) side. The precision of an inserting position is relaxed by the taper 15 and also the force of a spring is controlled by forming the taper 15 into a suitable shape.

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