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

US4939102A Method of growing III-V semiconductor layers with high effective hole concentration 失效
标题翻译：生长具有高有效孔浓度的III-V半导体层的方法
公开(公告)号：US4939102A
公开(公告)日：1990-07-03
申请号：US297716
申请日：1989-01-17
申请人： Robert A. Hamm , Roger J. Malik , Morton B. Panish , John F. Walker
发明人： Robert A. Hamm , Roger J. Malik , Morton B. Panish , John F. Walker
IPC分类号： H01L21/205 , H01L21/203
CPC分类号： H01L21/02392 , H01L21/02395 , H01L21/02463 , H01L21/02543 , H01L21/02546 , H01L21/02579 , H01L21/02631 , Y10S148/002 , Y10S148/041 , Y10S148/056 , Y10S148/169 , Y10S438/915
摘要： 36 We have discovered the III-V semiconductor layers with previously unattainably high effective hole concentrations can be produced by molecular growth processes (e.g. MBE) if an amphoteric dopant such as Be is used and if, during the growth of the highly doped III-V layer, the substrate is maintained at a temperature T.sub.g that is substantially lower than customarily used. For instance, a InGaAs layer with effective hole concentration 1.0.times.10.sup.20 cm.sup.-3 was grown at T.sub.g =450.degree. C., and a GaAs layer with effective hole concentration of 1.0.times.10.sup.20 cm.sup.-3 was grown at T.sub.g of 475.degree. C. The heavily doped III-V layers can be of device grade and can usefully be part of electronic devices such as high speed bipolar transistors.

2. 发明授权

US4894526A Infrared-radiation detector device 失效
标题翻译：红外辐射检测装置
公开(公告)号：US4894526A
公开(公告)日：1990-01-16
申请号：US97567
申请日：1987-09-15
申请人： Clyde G. Bethea , Kwong-Kit Choi , Barry F. Levine , Roger J. Malik , John F. Walker
发明人： Clyde G. Bethea , Kwong-Kit Choi , Barry F. Levine , Roger J. Malik , John F. Walker
IPC分类号： G01J1/02 , H01L31/0264 , H01L31/0352 , H01L31/09 , H01L31/10 , H01L31/101
CPC分类号： B82Y20/00 , H01L31/035236 , H01L31/101
摘要： A narrow-bandwidth, high-speed infrared radiation detector is based on tunneling of photo-excited electrons out of quantum wells. Infrared radiation incident on a superlattice of doped quantum wells gives rise to intersubband resonance radiation which excites electrons from the ground state into an excited state. A photocurrent results from excited electrons tunneling out of quantum wells. Conveniently, Group III-V materials can be used in device manufacture. Preferably, quantum well potential barriers are shaped so as to facilitate resonant tunneling of photocurrents as compared with dark current. Preferred device operation is at elevated bias voltage, giving rise to enhancement of photocurrent by a quantum-well-avalanche effect.

3. 外观设计

USD243021S Recording instrument 失效
公开(公告)号：USD243021S
公开(公告)日：1977-01-11
申请号：US563110
申请日：1975-03-28
申请人： John F. Walker , Harold T. Muse
设计人： John F. Walker , Harold T. Muse

4. 发明授权

US06179180B2 Carrier accessory for recreational vehicles 失效
标题翻译：运动装备用于休闲车
公开(公告)号：US06179180B2
公开(公告)日：2001-01-30
申请号：US09348228
申请日：1999-07-06
申请人： John F. Walker
发明人： John F. Walker
IPC分类号： B60R708
CPC分类号： B62J11/00
摘要： A carrier accessory which is releasably attachable to the support rack of an off-road or other recreational vehicle includes a frame having a plurality of substantially circular members, each sized to retain a cylindrical article such as a bucket or pail. The frame further includes releasable attachment members which allow the accessory to clamp onto an existing support rack, the circular members being cantilevered from the accessory frame.
摘要翻译：可释放地附接到越野或其他休闲车辆的支撑架上的行星架附件包括具有多个基本上圆形的构件的框架，每个尺寸适于保持诸如桶或桶的圆柱形物品。框架还包括可释放的附接构件，其允许附件夹紧到现有的支撑架上，圆形构件从附件框架悬臂。

5. 外观设计

USD275194S Process controller panel 失效
公开(公告)号：USD275194S
公开(公告)日：1984-08-21
申请号：US373914
申请日：1982-05-03
申请人： John F. Walker
设计人： John F. Walker

6. 发明授权

US06903707B2 Method for using a motorized camera mount for tracking in augmented reality 失效
标题翻译：使用电动摄像机底座在增强现实中进行跟踪的方法
公开(公告)号：US06903707B2
公开(公告)日：2005-06-07
申请号：US10198584
申请日：2002-07-18
申请人： Andrew W. Hobgood , John F. Ebersole, Jr. , John F. Walker , John F. Ebersole
发明人： Andrew W. Hobgood , John F. Ebersole, Jr. , John F. Walker , John F. Ebersole
IPC分类号： G06F3/01 , G06T15/10 , G06T15/20 , G06T19/00 , G09B9/00 , G09G5/00 , H04N7/00
CPC分类号： G06F3/011 , G06T15/20 , G06T19/006 , G09G2340/125 , H04N5/232
摘要： The invention is a method for displaying otherwise unseen objects and other data using augmented reality (the mixing of real view with computer generated imagery). The method uses a motorized camera mount that can report the position of a camera on that mount back to a computer. With knowledge of where the camera is looking, and the size of its field of view, the computer can precisely overlay computer-generated imagery onto the video image produced by the camera. The method may be used to present to a user such items as existing weather conditions, hazards, or other data, and presents this information to the user by combining the computer generated images with the user's real environment. These images are presented in such a way as to display relevant location and properties of the object to the system user. The primary intended applications are as navigation aids for air traffic controllers and pilots in training and operations, and use with emergency first responder training and operations to view and avoid/alleviate hazardous material situations, however the system can be used to display any imagery that needs to correspond to locations in the real world.
摘要翻译：本发明是一种使用增强现实来显示另外看不见的对象和其他数据的方法（真实视图与计算机生成的图像的混合）。该方法使用电动摄像机底座，可将该安装座上的摄像机的位置报告回计算机。通过了解相机的外观以及其视野的大小，计算机可以将计算机生成的图像精确地覆盖到由相机生成的视频图像上。该方法可以用于向用户呈现诸如现有天气条件，危险或其他数据的项目，并且通过将计算机生成的图像与用户的真实环境组合来将该信息呈现给用户。这些图像以向系统用户显示对象的相关位置和属性的方式呈现。主要的应用是作为空中交通管制员和飞行员在培训和运行中的导航辅助工具，并使用紧急第一响应者培训和操作来查看和避免/减轻危险物质情况，但是该系统可用于显示任何需要的图像以对应于现实世界中的位置。

7. 发明授权

US4605694A Plasticizing compositions for polyvinylchloride 失效
标题翻译：聚氯乙烯增塑组合物
公开(公告)号：US4605694A
公开(公告)日：1986-08-12
申请号：US793508
申请日：1985-10-31
申请人： John F. Walker
发明人： John F. Walker
IPC分类号： C08K5/103 , C08K5/12
CPC分类号： C08K5/103 , C08K5/12
摘要： Disclosed are plasticized compositions comprising polyvinylchloride, a trimellitate ester, and a pentaerythritol alkanoic acid ester.
摘要翻译：公开了包含聚氯乙烯，偏苯三酸酯和季戊四醇链烷酸酯的增塑组合物。

8. 发明授权

US4064058A Mixed synthetic ester grease base stock 失效
标题翻译：混合合成酯润滑脂基料
公开(公告)号：US4064058A
公开(公告)日：1977-12-20
申请号：US382785
申请日：1973-07-26
申请人： John F. Walker
发明人： John F. Walker
IPC分类号： C10M105/32 , C10M169/04 , C10M1/24
CPC分类号： C10M105/32 , C10M169/04 , C10M2205/026 , C10M2207/125 , C10M2207/129 , C10M2207/281 , C10M2207/282 , C10M2207/283 , C10M2207/286 , C10M2207/289 , C10M2207/304 , C10M2209/084 , C10M2209/109 , C10M2215/064 , C10M2215/065 , C10N2210/01
摘要： Disclosed is a grease base stock characterized by outstanding thermal and oxidation stability, low volatility, and high viscosity index. It comprises a blend of (1) a normally liquid pentaerythritol ester product consisting essentially of pentaerythritol material selected from the group consisting of pentaerythritol and polypentaerythritols, completely esterified by C.sub.4 -C.sub.12 alkanoic acid material, and (2) a neopentyl glycol ester product having a substantially higher 77.degree. F. viscosity than the pentaerythritol ester product and consisting essentially of the reaction product of neopentyl glycol, C.sub.4 -C.sub.12 alkanedioic acid material and C.sub.4 -C.sub.12 alkanol material substantially at mole ratios of n:(n+1):2, n being a whole number in the range from 1 to 12. The weight ratio of the pentaerythritol ester product to the neopentyl glycol ester product is generally in a range from about 2:3 to about 9:1.
摘要翻译：公开了一种油脂基料，其特征在于具有优异的耐热和氧化稳定性，低挥发性和高粘度指数。它包括（1）基本上由选自季戊四醇和季戊四醇的季戊四醇材料组成的常规液体季戊四醇酯产物的混合物，其通过C4-C12链烷酸材料完全酯化，和（2）新戊二醇酯产物，其具有基本上由新戊二醇，C4-C12链烷二酸材料和C4-C12烷醇材料的反应产物基本上以n：（n + 1）：2的摩尔比组成，其比77℃的粘度明显高于季戊四醇酯产物， n为1至12的整数。季戊四醇酯产物与新戊二醇酯产物的重量比通常在约2:3至约9:1的范围内。

9. 外观设计

USD243022S Recording instrument 失效
公开(公告)号：USD243022S
公开(公告)日：1977-01-11
申请号：US563111
申请日：1975-03-28
申请人： John F. Walker , Harold T. Muse
设计人： John F. Walker , Harold T. Muse

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