Patents by Inventor Xianfeng Chen

Xianfeng Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • PATTERN FORMATION METHOD, MANUFACTURING METHOD OF PIEZOELECTRIC FILM AND MANUFACTURING METHOD OF PIEZOELECTRIC ELEMENT
    Publication number: 20150068673
    Abstract: A pattern formation method includes forming an electromagnetic wave blocking structure having a region on a one side of a support substrate, a reflectance of an electromagnetic wave in the region being lower than a reflectance in an area outside the region; forming a mask layer provided with an opening corresponding to the region and configured to be thermally decomposed at a predetermined temperature on an other side of the support substrate; forming a first heated layer in the opening; and shedding an electromagnetic wave from the one side of the support substrate on the electromagnetic wave blocking structure, wherein an intensity of the electromagnetic wave is determined such that a temperature of the mask layer is less than the predetermined temperature and a temperature of the first heated layer being heated is greater than or equal to the predetermined temperature.
    Type: Application
    Filed: September 8, 2014
    Publication date: March 12, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventor: Xianfeng Chen
  • METHOD AND APPARATUS FOR DELIVERY OF MOLECULES TO CELLS
    Publication number: 20140295558
    Abstract: The present invention is concerned with a system and method for introducing a substance into cells. The system has an assembly including a plurality of elongate non-hollow nanoneedles forming a nanoneedle array or patch for delivering the substance into the cells, at least some of the nanoneedles have a non-uniform diameter with a wider upper end, a narrower lower end for penetration into the cells and a length from substantially 200 nm to 100 um. The lower end has a diameter from substantially 20-436 nm. Adjacent nanoneedles are spaced apart by substantially 5-50 um. The nanoneedles are made from a material selected from the group consisting of diamond, cubic boron nitride, carbon nitride, boron nitride, boron carbon nitride, metal borides and essentially boron materials, allowing the nanoneedles to maintain sufficient thinness and yet adequate rigidity during penetration. The nanoneedles are applied onto the cells grown on substrates at a preferred rate from 1 to 5 m/s.
    Type: Application
    Filed: January 23, 2014
    Publication date: October 2, 2014
    Applicant: CITY UNIVERSITY OF HONG KONG
    Inventors: Xianfeng CHEN, Wenjun ZHANG
  • COMPLEX OXIDE, THIN-FILM CAPACITIVE ELEMENT, LIQUID DROPLET DISCHARGE HEAD, AND METHOD OF PRODUCING COMPLEX OXIDE
    Publication number: 20140268481
    Abstract: A complex oxide includes a chemical compound represented by ABO3 (Chemical Formula 1). In the Chemical Formula 1, A is one or more elements selected from Ba, Ca, and Sr; and B is one or more elements selected from Ti, Zr, Hf, and Sn. When a field having a size of 1 ?m×1 ?m on a surface of the complex oxide is observed with an atomic force microscope (AFM), a typical particle size is greater than or equal to 300 nm and less than 660 nm. Here, the typical particle size is a maximum length of a maximum particle observed in the field.
    Type: Application
    Filed: February 19, 2014
    Publication date: September 18, 2014
    Applicant: RICOH COMPANY, LTD.
    Inventors: Yoshikazu AKIYAMA, Xianfeng CHEN
  • METHOD OF HEATING, METHOD OF PRODUCING PIEZOELECTRIC FILM, AND LIGHT IRRADIATION DEVICE
    Publication number: 20140216643
    Abstract: A method of heating includes a process of forming a layer to be heated on one surface of a light absorption layer; and a process of heating the light absorption layer by irradiating light onto the other surface of the light absorption layer. The other surface of the light absorption layer is a surface opposite to the one surface of the light absorption layer.
    Type: Application
    Filed: January 22, 2014
    Publication date: August 7, 2014
    Applicant: RICOH COMPANY, LTD.
    Inventor: Xianfeng CHEN
  • SERVER FOR SENDING NEW APPLICATION PORTIONS TO MOBILE WIRELESS COMMUNICATIONS DEVICES AND RELATED METHODS
    Publication number: 20140206332
    Abstract: A communications system is to communicate with an application server storing a plurality of applications. The communications system includes a mobile wireless communications device configured to store at least one application from among the plurality of applications, the at least one application having stored version information associated therewith. An intermediate server is configured to update the mobile wireless communications device by at least obtaining respective current version information for associated current versions of the plurality of applications and obtaining the stored application version information from the mobile wireless communications device for the at least one stored application. The stored application version information is compared with the current version information for the at least one stored application.
    Type: Application
    Filed: March 24, 2014
    Publication date: July 24, 2014
    Applicant: BLACKBERRY LIMITED
    Inventors: XIANFENG CHEN, ORLIN VESSELINOV STOEV
  • Patch production
    Patent number: 8734697
    Abstract: A method for use in producing a patch having a number of projections thereon. The method includes providing a distribution member and filling material on a mold surface, the mold including a number of cavities extending from the mold surface for defining the patch projections, filling the cavities with filling material, at least in part by urging filling material from the distribution member into the cavities, causing the filling material to solidify and separating the solidified filling material and the mold to thereby form the patch.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: May 27, 2014
    Assignee: The University of Queensland
    Inventors: Xianfeng Chen, Mark Anthony Fernance Kendall, Tarl Prow, Anthony Paul Raphael
  • MECHANICALLY ROBUST FAST-DISSOLVING MICRONEEDLES FOR TRANSDERMAL DRUG AND VACCINE DELIVERY
    Publication number: 20140142541
    Abstract: Disclosed are biocompatible, dissolving microneedle structures with enhanced mechanical strength. More particularly, the present disclosure relates to microneedles containing nanomaterials. Also disclosed are methods of producing such microneedle structures, as well as methods for using them to deliver drugs or biomolecules into the skin or epithelia, or the cytoplasm and/or nucleus of a skin or epithelia cell, of a subject.
    Type: Application
    Filed: November 16, 2012
    Publication date: May 22, 2014
    Applicant: CITY UNIVERSITY OF HONG KONG
    Inventors: Li YAN, Xianfeng CHEN
  • Server for sending new application portions to mobile wireless communications devices and related methods
    Patent number: 8706102
    Abstract: A communications system is to communicate with an application server storing a plurality of applications. The communications system includes a mobile wireless communications device configured to store at least one application from among the plurality of applications, the at least one application having stored version information associated therewith. An intermediate server is configured to update the mobile wireless communications device by at least obtaining respective current version information for associated current versions of the plurality of applications and obtaining the stored application version information from the mobile wireless communications device for the at least one stored application. The stored application version information is compared with the current version information for the at least one stored application.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: April 22, 2014
    Assignee: BlackBerry Limited
    Inventors: Xianfeng Chen, Orlin Vesselinov Stoev
  • NFC TRANSPORT AUTO DISCOVERY
    Publication number: 20130344804
    Abstract: A Near Field Communication (NFC) Share Framework Adaptor in an NFC device, comprising a module to receive a message from an application running on the NFC device; a parser module to parse the message, identify its payload data, and determine the payload data's type; a converter module to convert the parsed message into an encapsulated message; and a sending module to transmit the encapsulated message for external transport.
    Type: Application
    Filed: June 22, 2012
    Publication date: December 26, 2013
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Xianfeng Chen, Yevgeny Bondar, Orlin Vesselinov Stoev
  • Transgenic plants with enhanced agronomic traits
    Publication number: 20130283461
    Abstract: This invention provides recombinant DNA constructs, transgenic plant nuclei and cells with such recombinant DNA construct for expression of proteins that are useful for imparting enhanced agronomic trait(s) to transgenic crop plants. This invention also provides transgenic plants and progeny seed comprising the transgenic plant cells where the plants are selected for having an enhanced trait selected from the group of traits consisting of enhanced water use efficiency, enhanced cold tolerance, increased yield, enhanced nitrogen use efficiency, enhanced seed protein and enhanced seed oil. Also disclosed are methods for manufacturing transgenic seed and plants with enhanced traits.
    Type: Application
    Filed: February 27, 2013
    Publication date: October 24, 2013
    Inventors: Mark Scott Abad, Jeffery E. Ahrens, Alice Clara Augustine, Erin Bell, Robert J. Bensen, Srikanth Venkatachalayya, Paolo Castiglioni, Richard E. Cerny, Jaishree M. Chittoor-Vijayanath, Maureen Daley, Jill Deikman, Molian Deng, Todd DeZwaan, Stephen Duff, Michael D. Edgerton, Bradon J. Fabbri, Jason Fenner, Karen Gabbert, Meghan Galligan, Garrett J. Lee, Barry S. Goldman, Deborah J. Hawkins, Steve He, Xianfeng Chen, Balasulojini Karunanandaa, Paul Loida, Savitha Madappa, Robert J. Meister, Ming Peng, Donald E. Nelson, Anand Pandravada, Obed Patty, Marie Petracek, Rajani Monnanda Somaiah, Monica P. Ravanello, Richard Johnson, Thomas G. Ruff, Rick A. Sanders, Beth Savidge, Steven H. Schwartz, Shobha Char, Padmini Sudarshana, Jindong Sun, Rebecca L. Thompson-Mize, Virginia Ursin, Dale L. Val, Tyamagondlu V. Venkatesh, Kammaradi R. Vidya, K. Vijayalakshmi, Todd C. Weber, Jingrui Wu, Wei Zheng, Zhidong Xie, Dhanalakshmi Ramachandra
  • MOBILE COMMUNICATIONS SYSTEM PROVIDING ENHANCED OUT OF BAND (OOB) BLUETOOTH PAIRING AND RELATED METHODS
    Publication number: 20130189924
    Abstract: A communications system may include a communications device including a first Bluetooth transceiver. The first Bluetooth transceiver may comprise a clock. The first Bluetooth transceiver may be capable of scanning a plurality of different operating frequencies for a pairing request based upon the clock. The communications device may further include an output device coupled with the Bluetooth transceiver and capable of outputting data associated with the clock via a communications path different than Bluetooth. The system may also include a mobile communications device including an input device capable of receiving the clock data from the output device via the communications path, and a second Bluetooth transceiver coupled with the input device and capable of generating the pairing request based upon the received clock data.
    Type: Application
    Filed: March 14, 2012
    Publication date: July 25, 2013
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Justin Manuel PEDRO, Marin BLAZEVIC, Xianfeng CHEN, Dong Duc Hai NGUYEN
  • METHOD OF MAKING LIQUID DISCHARGE HEAD, LIQUID DISCHARGE HEAD, LIQUID DISCHARGE APPARATUS HAVING LIQUID DISCHARGE HEAD, AND MANUFACTURING APPARATUS OF LIQUID DISCHARGE HEAD
    Publication number: 20130169713
    Abstract: A method of making a liquid discharge head which includes a nozzle to discharge liquid, a pressure chamber communicating with the nozzle, a pressure chamber substrate to form surfaces of the pressure chamber, and a piezoelectric actuator to apply pressure to liquid in the pressure chamber having a lower electrode, a ferroelectric film, and an upper electrode, includes a silicon wafer supplying process, a position adjustment process, a surface treatment process to reform a surface of the lower electrode, a liquid applying process to apply ferroelectric precursor on the lower electrode by an inkjet method, a heating process to heat the ferroelectric precursor film, and a cooling process. A series of processes from the position adjustment process to the cooling process is iterated to form a ferroelectric film having a predetermined thickness. The series of processes is performed with certain waiting times inserted between key processes.
    Type: Application
    Filed: December 27, 2012
    Publication date: July 4, 2013
    Applicant: RICOH COMPANY, LTD.
    Inventors: Atsushi Takeuchi, Osamu Machida, Akira Shimofuku, Xianfeng Chen, Ryo Tashiro
  • METHOD AND APPARATUS FOR DELIVERY OF MOLECULES TO CELLS
    Publication number: 20130171722
    Abstract: The present invention is concerned with an apparatus for injection of a substance into a subject. The apparatus has an assembly including a plurality of elongate non-hollow micro-nanoneedles for delivering the substance into the subject, at least some of the micro-nanoneedles have a non-uniform diameter with a wider upper end and a narrower lower end and a length from 5-100 um, wherein the upper end has a diameter from 1-20 um and the lower end has a diameter from 50-400 nm, wherein the micro-nanoneedles are spaced apart with appropriate spacing therebetween such that when the micro-nanoneedles are penetrating cells in a penetration exercise each of the micro-nanoneedles may penetrate one cell only, and wherein the micro-nanoneedles are made from a relatively rigid material allowing the micro-nanoneedles to maintain rigidity during penetration and are configured to allow coating of the substance on the surface of the lower end.
    Type: Application
    Filed: January 3, 2012
    Publication date: July 4, 2013
    Applicant: CITY UNIVERSITY OF HONG KONG
    Inventors: Xianfeng CHEN, Wenjun ZHANG
  • MACHINE-TO-MACHINE COMMUNICATIONS PRIVACY PROTECTION METHOD AND SYSTEM, MACHINE-TO-MACHINE COMMUNICATIONS SERVICE MANAGEMENT ENTITY, AND RELATED DEVICE
    Publication number: 20130160140
    Abstract: Embodiments of the present invention provide a machine-to-machine communications privacy protection method and system, a machine-to-machine communications service management entity, and a related device. The method includes: after receiving a location access message, determining, by a service management entity and according to locating information, an entity that performs privacy inspection; and triggering, by the service management entity, the entity that performs privacy inspection to perform privacy inspection. The M2M service management entity determines in advance the entity that performs privacy inspection and triggers the entity that performs privacy inspection to perform privacy inspection. Therefore, with the method provided in the present invention, message interaction on an mId interface is reduced, thereby reducing a message overhead.
    Type: Application
    Filed: August 13, 2012
    Publication date: June 20, 2013
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Lei JIN, Yonggang BIAN, Yongjing ZHANG, Xianfeng CHEN, Qi LIN, Lunjian MU
  • Server for sending new application portions to mobile wireless communications devices and related methods
    Patent number: 8364137
    Abstract: A communications system is to communicate with an application server storing a plurality of applications. The communications system includes a mobile wireless communications device configured to store at least one application from among the plurality of applications, the at least one application having stored version information associated therewith. An intermediate server is configured to update the mobile wireless communications device by at least obtaining respective current version information for associated current versions of the plurality of applications and obtaining the stored application version information from the mobile wireless communications device for the at least one stored application. The stored application version information is compared with the current version information for the at least one stored application.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: January 29, 2013
    Assignee: Research In Motion Limited
    Inventors: Xianfeng Chen, Orlin Stoev
  • SERVER FOR SENDING NEW APPLICATION PORTIONS TO MOBILE WIRELESS COMMUNICATIONS DEVICES AND RELATED METHODS
    Publication number: 20120246631
    Abstract: A communications system is to communicate with an application server storing a plurality of applications. The communications system includes a mobile wireless communications device configured to store at least one application from among the plurality of applications, the at least one application having stored version information associated therewith. An intermediate server is configured to update the mobile wireless communications device by at least obtaining respective current version information for associated current versions of the plurality of applications and obtaining the stored application version information from the mobile wireless communications device for the at least one stored application. The stored application version information is compared with the current version information for the at least one stored application.
    Type: Application
    Filed: June 4, 2012
    Publication date: September 27, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: XIANFENG CHEN, ORLIN STOEV
  • Transgenic plants with enhanced agronomic traits
    Publication number: 20120227131
    Abstract: This invention provides transgenic plant cells with recombinant DNA for expression of proteins that are useful for imparting enhanced agronomic trait(s) to transgenic crop plants. This invention also provides transgenic plants and progeny seed comprising the transgenic plant cells where the plants are selected for having an enhanced trait selected from the group of traits consisting of enhanced water use efficiency, enhanced cold tolerance, increased yield, enhanced nitrogen use efficiency, enhanced seed protein and enhanced seed oil. Also disclosed are methods for manufacturing transgenic seed and plants with enhanced traits.
    Type: Application
    Filed: September 8, 2011
    Publication date: September 6, 2012
    Inventors: Mark S. Abad, Thomas R. Adams, Ameeta K. Argarwal, James A. Ball, Paolo Castiglioni, Banu Gopalan, Erin Bell, Shobha Char, Robert J. Bensen, Raghava S. Boddupalli, Alessandra Frizzi, Jill Deikman, Robert D'Ordine, Michael D. Edgerton, Xianfeng Chen, Mary Fernandes, Paul S. Chomet, Stephen Duff, Deborah G. Rucker, Changlin Fu, Jeffrey E. Ahrens, Stanton B. Dotson, Richard E. Finger, Jinzhuo Dong, Molian Deng
  • Server for sending new application portions to mobile wireless communications devices and related methods
    Patent number: 8213921
    Abstract: A communications system is to communicate with an application server storing a plurality of applications. The communications system includes a mobile wireless communications device configured to store at least one application from among the plurality of applications, the at least one application having stored version information associated therewith. An intermediate server is configured to update the mobile wireless communications device by at least obtaining respective current version information for associated current versions of the plurality of applications and obtaining the stored application version information from the mobile wireless communications device for the at least one stored application. The stored application version information is compared with the current version information for the at least one stored application.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: July 3, 2012
    Assignee: Research In Motion Limited
    Inventors: Xianfeng Chen, Orlin Stoev
  • System and Method For Transactional Application Lifecycle Management For Mobile Devices
    Publication number: 20120142330
    Abstract: The present disclosure relates to networks and lifecycle transaction management of mobile devices. There is provided a system and method for managing the lifecycle of applications on mobile devices. The system has components for implementing a method comprising the steps of creating a transaction context comprising a transaction command, sending the transaction context in a transaction context message to a plurality of mobile devices, and evaluating an ending scenario based on transaction statuses of the plurality of mobile devices.
    Type: Application
    Filed: February 9, 2012
    Publication date: June 7, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Xianfeng CHEN, Viera BIBR, Brindusa FRITSCH
  • System and method for transactional application lifecycle management for mobile devices
    Patent number: 8135393
    Abstract: The present disclosure relates to networks and lifecycle transaction management of mobile devices. There is provided a system and method for managing the lifecycle of applications on mobile devices. The system has components for implementing a method comprising the steps of creating a transaction context comprising a transaction command, sending the transaction context in a transaction context message to a plurality of mobile devices, and evaluating an ending scenario based on transaction statuses of the plurality of mobile devices.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: March 13, 2012
    Assignee: Research In Motion Limited
    Inventors: Xianfeng Chen, Viera Bibr, Brindusa Fritsch