Patents by Inventor Weibin Chen
Weibin 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).
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Publication number: 20220220795Abstract: A recording head has a near-field transducer that extends a first distance away from a media-facing surface. Two subwavelength focusing mirrors are at an end of a waveguide proximate the media-facing surface and extend a second distance away from the media-facing surface that is less than the first distance. The subwavelength mirrors are on opposite crosstrack sides of the near-field transducer and separated from each other by a crosstrack gap. The subwavelength focusing mirrors each include a first material at the media-facing surface and a plasmonic material that covers an edge of the subwavelength focusing mirror that faces the near-field transducer. The first material is more mechanically robust than the plasmonic material.Type: ApplicationFiled: January 25, 2022Publication date: July 14, 2022Inventors: Weibin Chen, Nan Zhou, Ruoxi Yang, Michael Allen Siegler
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Patent number: 11373679Abstract: A recording head includes a near-field transducer proximate a media-facing surface of the recording head and a waveguide that overlaps and delivers light to the near-field transducer. The recording head includes subwavelength-sized focusing mirror comprising first and second reflectors disposed on cross track sides of the near-field transducer. Each of the first and second reflectors is spaced apart from the media-facing surface by a distance, D, measured along an axis normal to the media-facing surface.Type: GrantFiled: August 19, 2021Date of Patent: June 28, 2022Assignee: SEAGATE TECHNOLOGY LLCInventors: Ruoxi Yang, YongJun Zhao, Nan Zhou, Weibin Chen, Huaqing Yin, Michael Allen Seigler
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Patent number: 11264053Abstract: A recording head has a near-field transducer proximate a media-facing surface of the recording head. The near-field transducer extends a first distance away from the media-facing surface. A waveguide overlaps and delivers light to the near-field transducer. Two subwavelength focusing mirrors are at an end of the waveguide proximate the media-facing surface. The subwavelength mirrors are on opposite crosstrack sides of the near-field transducer and separated from each other by a crosstrack gap. The subwavelength focusing mirrors each include a first material at the media-facing surface and a liner that covers an edge of the mirror.Type: GrantFiled: March 29, 2021Date of Patent: March 1, 2022Assignee: Seagate Technology LLCInventors: Weibin Chen, Nan Zhou, Ruoxi Yang, Michael Allen Seigler
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Publication number: 20210366515Abstract: A recording head comprises a write pole extending to an air-bearing surface. A near-field transducer is positioned proximate a first side of the write pole in a down-track direction. A heatsink structure is proximate the near-field transducer and positioned between the near-field transducer and the write pole. The heatsink structure extends beyond the near-field transducer in a cross-track direction and extends in a direction normal to the air-bearing surface.Type: ApplicationFiled: May 13, 2021Publication date: November 25, 2021Inventors: Helene Parwana Habibi, Simon Bance, Martin Liam McGarry, Raul Horacio Andruet, Martin Giles Blaber, Weibin Chen, John Charles Duda, Mark Anthony Gubbins, Erik Jon Hutchinson, Vivek Krishnamurthy, Michael Allen Seigler, Chen Wang
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Patent number: 11107497Abstract: A recording head includes a near-field transducer proximate a media-facing surface of the recording head and a waveguide that overlaps and delivers light to the near-field transducer. The recording head includes subwavelength-sized focusing mirror comprising first and second reflectors disposed on cross track sides of the near-field transducer. Each of the first and second reflectors is spaced apart from the media-facing surface by a distance, D, measured along an axis normal to the media-facing surface.Type: GrantFiled: December 23, 2019Date of Patent: August 31, 2021Assignee: Seagate Technology LLCInventors: Ruoxi Yang, YongJun Zhao, Nan Zhou, Weibin Chen, Huaqing Yin, Michael Allen Seigler
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Publication number: 20210249039Abstract: A recording head has a near-field transducer proximate a media-facing surface of the recording head. The near-field transducer extends a first distance away from the media-facing surface. A waveguide overlaps and delivers light to the near-field transducer. Two subwavelength focusing mirrors are at an end of the waveguide proximate the media-facing surface. The subwavelength mirrors are on opposite crosstrack sides of the near-field transducer and separated from each other by a crosstrack gap. The subwavelength focusing mirrors each include a first material at the media-facing surface and a liner that covers an edge of the mirror.Type: ApplicationFiled: March 29, 2021Publication date: August 12, 2021Inventors: Weibin Chen, Nan Zhou, Ruoxi Yang, Michael Allen Seigler
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Patent number: 11028878Abstract: The present application discloses a bearing structural member, a support, a joint assembly and a tube section assembly, wherein the maximum counter force provided by the bearing structural member under an external load is an own designed threshold value, namely when the external load is greater than the designed threshold value of the bearing structural member, the bearing structural member deforms, and provides a counter force equal to the designed threshold value; the support includes at least one bearing structural member; and the joint assembly and the tube section assembly are both equipped with the support. When the external load is not high and is less than the designed threshold value, the bearing structural member may effectively suppress the deformation just like a rigid structural member; when the external load exceeds the designed threshold value, the bearing structural member may deform, and provide a stable counter supporting force less than the external load.Type: GrantFiled: January 12, 2018Date of Patent: June 8, 2021Assignees: China Communications Construction Co. Ltd., CCCC Highway Consultants Co. Ltd., CCCC Wuhan Harbour Engineering Design & Research Co., Ltd., Shanghai Zhenhua Heavy Industries Co., Ltd.Inventors: Ming Lin, Wei Lin, Xiaodong Liu, Kexin Liu, Haiqing Yin, Liuqing Tu, Jibing Gao, Yaping Liu, Weibin Chen, Yiyuan Wu, Huawen Wang, Yu Liu
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Patent number: 11011201Abstract: A recording head comprises a write pole extending to an air-bearing surface. A near-field transducer is positioned proximate a first side of the write pole in a down-track direction. A heatsink structure is proximate the near-field transducer and positioned between the near-field transducer and the write pole. The heatsink structure extends beyond the near-field transducer in a cross-track direction and extends in a direction normal to the air-bearing surface.Type: GrantFiled: July 24, 2019Date of Patent: May 18, 2021Assignee: Seagate Technology LLCInventors: Helene Parwana Habibi, Simon Bance, Martin Liam McGarry, Raul Horacio Andruet, Martin Giles Blaber, Weibin Chen, John Charles Duda, Mark Anthony Gubbins, Erik Jon Hutchinson, Vivek Krishnamurthy, Michael Allen Seigler, Chen Wang
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Patent number: 10964340Abstract: A recording head has a near-field transducer proximate a media-facing surface of the recording head. The near-field transducer extends a first distance away from the media-facing surface. A waveguide overlaps and delivers light to the near-field transducer. Two subwavelength focusing mirrors are at an end of the waveguide proximate the media-facing surface and extend a second distance away from the media-facing surface that is less than the first distance. The subwavelength mirrors are on opposite crosstrack sides of the near-field transducer and separated from each other by a crosstrack gap. The subwavelength focusing mirrors each include a first material at the media-facing surface; and a second material facing away from the media facing surface and in contact with the first material. The second material includes a plasmonic material, and the first material is more mechanically robust than the second material.Type: GrantFiled: April 22, 2020Date of Patent: March 30, 2021Assignee: Seagate Technology LLCInventors: Weibin Chen, Nan Zhou, Ruoxi Yang, Michael Allen Seigler
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Publication number: 20210027809Abstract: A recording head comprises a write pole extending to an air-bearing surface. A near-field transducer is positioned proximate a first side of the write pole in a down-track direction. A heatsink structure is proximate the near-field transducer and positioned between the near-field transducer and the write pole. The heatsink structure extends beyond the near-field transducer in a cross-track direction and extends in a direction normal to the air-bearing surface.Type: ApplicationFiled: July 24, 2019Publication date: January 28, 2021Inventors: Helene Parwana Habibi, Simon Bance, Martin Liam McGarry, Raul Horacio Andruet, Martin Giles Blaber, Weibin Chen, John Charles Duda, Mark Anthony Gubbins, Erik Jon Hutchinson, Vivek Krishnamurthy, Michael Allen Seigler, Chen Wang
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Patent number: 10878833Abstract: A speech processing method and a terminal are provided. The method includes: receiving signals from a plurality of microphones; performing, by using a same sampling rate, analog-to-digital conversion on the plurality of paths of signals received from the plurality of microphones, to obtain a plurality of paths of time-domain digital signals; performing time-to-frequency-domain conversion on the plurality of paths of time-domain digital signals to obtain a plurality of paths of frequency-domain signals; and determining a signal type of the primary frequency-domain signal based on at least one of a sound pressure difference between the primary frequency-domain signal and each of N paths of secondary frequency-domain signals in the M paths of secondary frequency-domain signals, a phase difference between the primary frequency-domain signal and each of the N paths of secondary frequency-domain signals, and a frequency distribution characteristic of the primary frequency-domain signal.Type: GrantFiled: October 12, 2018Date of Patent: December 29, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Yanbin Du, Zhihai Zhu, Meng Liao, Weijun Zheng, Weibin Chen, Guangzhao Bao, Cunshou Qiu
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Patent number: 10832717Abstract: A near-field transducer has an enlarged portion with a layer of soft plasmonic material. A peg formed of a thermally robust plasmonic material includes an embedded part that is partially embedded within the enlarged portion and has an exposed surface facing away from the enlarged portion. An intersection between a lower edge of the enlarged portion and the embedded part has a discontinuity.Type: GrantFiled: July 30, 2019Date of Patent: November 10, 2020Assignee: Seagate Technology LLCInventors: Yuhang Cheng, Nan Zhou, Yongjun Zhao, Huaqing Yin, Weibin Chen, Michael Allen Seigler
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Patent number: 10748572Abstract: A recording head comprises a waveguide extending to an air-bearing surface, and the waveguide comprises a core surrounded by cladding layers. A near-field transducer is disposed on a first side of the core, and a reflector, comprising a layer of metallic material, is disposed on a second side of the core facing away from the first side. The reflector extends beyond the core in a cross-track direction and extends in a direction normal to the air-bearing surface. The reflector has a thickness in a downtrack direction of less than 200 nm.Type: GrantFiled: January 9, 2019Date of Patent: August 18, 2020Assignee: Seagate Technology LLCInventors: Ruoxi Yang, Yongjun Zhao, Weibin Chen
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Patent number: 10560550Abstract: A first network device may establish connectivity with a second network device. The first network device may determine information that identifies a cluster identifier based on establishing connectivity with the second network device. The first network device may compare a first software version of the first network device and a second software version of the second network device. The first network device may selectively obtain and install a system image of the second network device based on comparing the first software version and the second software version. The first network device may receive, from the second network device, configuration information and user session information based on selectively obtaining the system image. The first network device and the second network device may form a high-availability cluster.Type: GrantFiled: April 10, 2017Date of Patent: February 11, 2020Assignee: Juniper Networks, Inc.Inventors: Qilin Xue, Weibin Chen, Subbiah Kandasamy, Weimin Ji, Zheng Chang
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Patent number: 10490221Abstract: A near field transducer has a bottom disc with a first surface facing a write pole of a recording head. The bottom disc is recessed from a media-facing surface of the recording head by a distance R. An anchor layer is stacked on the first surface of the bottom disc and has an enlarged part with a peripheral shape corresponding to that of the bottom disc. The anchor layer further has a peg that extends from an end of the enlarged part towards the media facing surface, the end of the enlarged part recessed from the media facing surface by the distance R. A middle disc is on a second surface of the anchor layer. The middle disc is recessed from the media-facing surface a distance MDSCR that is greater than the distance R. A heat sink is stacked on a third surface of the middle disc. The heat sink is recessed from the media-facing surface by at least a distance TPH that is greater than the distance MDSCR.Type: GrantFiled: December 7, 2018Date of Patent: November 26, 2019Assignee: Seagate Technology LLCInventor: Weibin Chen
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Patent number: 10490215Abstract: An apparatus comprises a write pole, a waveguide core, and a near-field transducer (NFT) positioned between the write pole and the waveguide core. The NFT comprises a heatsink portion, an enlarged portion, and a peg comprising a refractory metal and extending from the enlarged portion toward a media-facing surface. A first surface of the peg is substantially coplanar with a first surface of the enlarged portion and the first surface of the enlarged portion shares an interface with the heatsink portion. A first dielectric layer is positioned between the peg and the write pole, and a first adhesion layer is positioned between the peg and the first dielectric layer. In addition, a second dielectric layer is disposed on an entire surface of the NFT opposing the media-facing surface, and a second adhesion layer is positioned between the NFT and the second dielectric layer.Type: GrantFiled: August 3, 2018Date of Patent: November 26, 2019Assignee: Seagate Technology LLCInventor: Weibin Chen
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Patent number: 10490214Abstract: An apparatus comprises a write pole, a waveguide core, and a near-field transducer (NFT) positioned between the write pole and the waveguide core. The NFT comprises an enlarged portion and a peg comprising a refractory metal and extending from the enlarged portion toward a media-facing surface. A first dielectric layer is positioned between the peg and the write pole, and a first adhesion layer is positioned between the peg and the first dielectric layer. In addition, a second dielectric layer is disposed on an entire surface of the NFT opposing the media-facing surface, and a second adhesion layer is positioned between the NFT and the second dielectric layer.Type: GrantFiled: August 3, 2018Date of Patent: November 26, 2019Assignee: Seagate Technology LLCInventor: Weibin Chen
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Patent number: 10490394Abstract: A mass spectrometer is disclosed wherein highly charged fragment ions resulting from Electron Transfer Dissociation fragmentation of parent ions are reduced in charge state within a Proton Transfer Reaction cell by reacting the fragment ions with a neutral superbase reagent gas such as Octahydropyrimidolazepine.Type: GrantFiled: September 11, 2017Date of Patent: November 26, 2019Assignee: MICROMASS UK LIMITEDInventors: Weibin Chen, Asish B. Chakraborty, John Charles Gebler, Jeffery Mark Brown
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Patent number: 10482906Abstract: A near-field transducer is situated at or proximate an air bearing surface of the apparatus and configured to facilitate heat-assisted magnetic recording on a medium. The near-field transducer includes an enlarged region comprising plasmonic material and having a first end proximate the air bearing surface. The near-field transducer also includes a disk region adjacent the enlarged region and having a first end proximate the air bearing surface. The disk region comprises plasmonic material. A peg region extends from the first end of the disk region and terminates at or proximate the air bearing surface. The near-field transducer further includes a region recessed with respect to the peg region. The recessed region is located between the peg region and the first end of the enlarged region.Type: GrantFiled: November 16, 2018Date of Patent: November 19, 2019Assignee: Seagate Technology LLCInventors: Weibin Chen, Werner Scholz
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Patent number: 10410664Abstract: A near-field transducer has an enlarged portion with a layer of soft plasmonic material. A peg is embedded in a lower part of the enlarged portion that faces a media-facing surface. The peg has an elongated outer part that extends from a lower edge of the enlarged portion towards the media-facing surface and an embedded part that is embedded within the enlarged portion. The embedded part could be any shape. The peg is formed of a thermally robust plasmonic material.Type: GrantFiled: March 29, 2018Date of Patent: September 10, 2019Assignee: Seagate Technology LLCInventors: Yuhang Cheng, Nan Zhou, Yongjun Zhao, Huaqing Yin, Weibin Chen, Michael Allen Seigler