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Yang Xiaofeng, Peters Kevin: Wheatstone bridge scheme for sensor. Hewlett Packard Development Co, October 26, 2005: EP1589333-A1 (1 worldwide citation)

A Wheatstone bridge circuit for a sensor has: first and second sensor elements (R2, R4) which respond to a stimulus generated when the sensor is exposed to a sample to be measured, the first and second sensor elements (R2, R4) comprising first and second elongated n type nano width regions formed in ...


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Alley Rodney L, Yang Xiaofeng, Trueba Kenneth E: Thermally efficient drop generator. Hewlett Packard Development Co, April 19, 2006: EP1647403-A1

A drop ejection device for use in a handheld inhaler is fabricated with a thin passivation layer (220) and thin or no metal anti-cavitation (230) layers above underlying heat transducers (212) to provide protection for the heat transducers. A control system (26) energizes selected heat transducers ( ...


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GUO ZHAOJI , YANG XIAOFENG , XIN GUOXIANG , HUANG HAI , WANG YONGHE : [de] VERFAHREN UND VORRICHTUNG ZUM SIMULTANEN LASERSCHWEISSEN, [en] PROCESS AND DEVICE FOR SIMULTANEOUS LASER WELDING, [fr] PROCÉDÉ ET DISPOSITIF DE SOUDAGE LASER SIMULTANÉ. SHANGHAI SEEYAO ELECTRONICS  , January 18, 2017: EP3117979-A1

[en] This invention provides a process and device for simultaneous laser welding; after using the moving lower die (5) and the fixing upper die (6) to make the base (14) and the lens (13) attached, by using the light pipe (12) to make the laser, which is emitted from the laser source (11), emit thro ...


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Schut David, Govyadinov Alexander, Yang Xiaofeng: Emitter device with focusing columns. Hewlett Packard Development Co, April 7, 2004: EP1406285-A2

An emitter device (10) including a focusing array (20) with plural focusing columns (24) to focus emissions from one or more emitters (28) onto a target medium. Relative movement between the target medium and the focused emissions allows each focusing column to focus emissions over an area of the ta ...


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Yang Xiaofeng: Multifunctional additive for cooling water system. Changling, gou gongdong, July 5, 2000: CN98113057

The multifunctional additive is suitable for use in cooling water system, especially for the descaling, antiscaling, disinfecting, inhibiting corrosion, preventing rust, preventing violent boiling, etc. of engine water cooling system. It consists of polycarboxylic acid 0.1-25%, alcohol amine 0-40%, ...


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Qin Zunming, Yang Xiaofeng: Method for reducing response time of direct broadcast band switchover. Zhongxing Communication, lianghui xujin guo, October 3, 2007: CN200610011566

This invention relates to a method for reducing switch response time of living broadcast channels used in a network TV network composed of a living broadcast head, a stream media server, a set-top box server and a real-time stream protocol control channel set between the media server and the set-top ...



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