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. 发明授权

US5633206A Process for manufacturing lead frame for semiconductor package 失效
标题翻译：制造半导体封装引线框的工艺
公开(公告)号：US5633206A
公开(公告)日：1997-05-27
申请号：US557540
申请日：1995-11-14
申请人： Sang H. Kim , Sung M. Sim , In P. Hong , Sang G. Lee
发明人： Sang H. Kim , Sung M. Sim , In P. Hong , Sang G. Lee
IPC分类号： H01L21/56 , H01L23/495 , H01L23/50 , H01L21/60
CPC分类号： H01L24/32 , H01L23/49503 , H01L23/49513 , H01L2924/01004 , H01L2924/01005 , H01L2924/01006 , H01L2924/01033 , H01L2924/01082 , H01L2924/14 , H01L2924/181 , Y10T29/49121
摘要： A process for manufacturing a lead frame having a pad, inner leads, outer leads and dambars, the lead frame being coated with a film on the back surface of the pad, which includes the steps of preparing a lead frame having a pad, inner leads and outer leads; placing a polyamic acid film on the back surface of the pad without using adhesive; and thermally compressing the polyamic acid film by using a heat; generator, to form polyimide film and simultaneously adhere that to the polyimide film the back surface of the pad.
摘要翻译：一种用于制造具有垫，内引线，外引线和堤坝的引线框架的方法，引线框架在焊盘的背面涂覆有膜，其包括以下步骤：制备具有焊盘的引线框架，内引线和外引线; 在不使用粘合剂的情况下将聚酰胺酸膜放置在垫的背面上; 并通过加热来热压聚酰胺酸膜; 发生器，以形成聚酰亚胺膜，同时将其粘附到聚酰亚胺膜的垫的背面。

2. 发明授权

US5219474A Liquid fire extinguishing composition 失效
标题翻译：液体灭火组合物
公开(公告)号：US5219474A
公开(公告)日：1993-06-15
申请号：US564192
申请日：1990-08-08
申请人： Choong E. Song , In O. Kim , Jae K. Lee , Tae K. Kim , Sang G. Lee
发明人： Choong E. Song , In O. Kim , Jae K. Lee , Tae K. Kim , Sang G. Lee
IPC分类号： A62D1/08 , A62D1/00 , C09K21/04 , C09K21/08
CPC分类号： A62D1/0057
摘要： A liquid fire extinguishing composition is obtained by mixing a C.sub.1 -C.sub.5 halogenated alkane such as Halone 1301 (CF.sub.3 Br), Halone 1211 (CF.sub.2 ClBr), or a mixture thereof with an organophosphorus compound, or the mixture thereof for a wide variety of a fire extinguishment and no residues after fire extinguishing.
摘要翻译：通过将诸如Halone 1301（CF3Br），Halone1211（CF2BBr）的C1-C5卤代烷烃或其混合物与有机磷化合物或其混合物混合以获得各种灭火剂来获得液体灭火组合物灭火后无残留物。

3. 发明授权

US06456278B1 Computer keyboard with accu-pressure points 失效
标题翻译：电脑键盘带有压力点
公开(公告)号：US06456278B1
公开(公告)日：2002-09-24
申请号：US09617006
申请日：2000-07-14
申请人： Sang G. Lee
发明人： Sang G. Lee
IPC分类号： G09G500
CPC分类号： G06F3/0202 , A61H39/04 , A61H2205/067
摘要： A key accu-pressure system comprising; a plurality of sensation needles attached to a surface, the sensation needles having a conical shape, an interior tip angle, a needlepoint and a shaft. The interior tip angle is less than about 60 degrees, and the interior tip angle is maintained to the needle point, the surface is a key, the key is attached to a keyboard, the key having an upper surface, an outer edge of the upper surface, a plurality of sides and a bottom surface. The plurality of needle points face generally upward and impact the fingers of a user when the keys are struck by the fingers, thereby creating an accu-pressure effect upon the fingers of the user, thereby relieving finger stress.
摘要翻译：一种关键的压力系统，包括：附着在表面上的多个感觉针，感觉针具有圆锥形，内部尖角，针尖和轴。内部尖端角度小于约60度，并且内部尖端角度保持在针尖处，表面是键，键被附接到键盘，键具有上表面，上表面的外边缘表面，多个侧面和底面。当钥匙被手指撞击时，多个针尖大致向上面对着使用者的手指，从而对使用者的手指产生压迫作用，从而缓解手指的压力。

4. 发明授权

US4873363A Process for the preparation of 3-(4'-bromobiphenyl-4-yl)tetralin-1-one 失效
标题翻译： 3-（4'-溴联苯-4-基）四氢化萘-1-酮的制备方法
公开(公告)号：US4873363A
公开(公告)日：1989-10-10
申请号：US192776
申请日：1988-05-11
申请人： In O. Kim , Sang G. Lee
发明人： In O. Kim , Sang G. Lee
IPC分类号： C07C45/66 , B01J27/06 , B01J27/16 , B01J31/02 , B01J31/04 , C07B61/00 , C07C45/00 , C07C45/46 , C07C49/323 , C07C49/697 , C07C49/813 , C07C51/00 , C07C51/09 , C07C51/377 , C07C57/58 , C07C67/00 , C07C67/343 , C07C69/14 , C07C69/732
CPC分类号： C07C57/58 , C07C45/46 , C07C49/697
摘要： A new process for the preparation of a 3-(4'-bromobiphenyl-4-yl)tetralin-1-one known as a key intermediate for the production of rodenticides and clinical medicines is provided. The title compound is prepared from P-bromobiphenylbenzylketone in three steps, wherein one of key inventions is dehydroxylation of 3-(4'-bromobiphenyl)-3-hydroxy-4-phenylbutyric acid ethyl ester using trialkylsilane in trifluoroacetic acid. This new process offers a high yield with a facile way and is more suitable for a commercial production than the prior art methods.
摘要翻译：提供了一种制备3-（4'-溴联苯-4-基）四氢化萘-1-酮的新方法，被称为生产杀鼠剂和临床药物的关键中间体。标题化合物分三步制备自对溴联苯甲基酮，其中关键发明之一是使用三烷基硅烷在三氟乙酸中3-（4'-溴联苯）-3-羟基-4-苯基丁酸乙酯的脱羟基化。这种新方法以轻松的方式提供高产率，并且比现有技术方法更适合商业生产。

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