Patents by Inventor Yinfeng Ding
Yinfeng Ding 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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Patent number: 10453487Abstract: A stack includes a substrate and a magnetic recording layer. Disposed between the substrate and magnetic recording layer is an MgO—Ti(ON) layer.Type: GrantFiled: December 10, 2015Date of Patent: October 22, 2019Assignee: Seagate Technology LLCInventors: Yukiko Kubota, Timothy John Klemmer, Kai Chieh Chang, Li Gao, Yinfeng Ding, Yingguo Peng, Jan-Ulrich Thiele
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Patent number: 10373637Abstract: Provided herein is an apparatus including a layer stack. A first granular metal layer overlies the layer stack, wherein the first granular metal layer includes first metal grains separated by voids. A first granular non-metal layer overlies the first granular metal layer, wherein the first granular non-metal layer includes first non-metal grains separated by a first segregant. A second granular non-metal layer overlies the first granular non-metal layer, wherein the second granular non-metal layer includes second non-metal grains separated by a second segregant. A second granular metal layer overlies the second granular non-metal layer, wherein the second granular metal layer includes second metal grains separated by a third segregant.Type: GrantFiled: March 2, 2017Date of Patent: August 6, 2019Assignee: Seagate Technology LLCInventors: Bin Lu, Jan-Ulrich Thiele, Ganping Ju, Xiaoding Ma, YingGuo Peng, YinFeng Ding
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Publication number: 20190027173Abstract: An apparatus is disclosed. The apparatus includes a first write layer, a second write layer, and a storage layer. The first write layer is disposed over the storage layer. The second write layer is disposed over the first write layer. The anisotropy field of the storage layer is greater than anisotropy field of the first write layer. The anisotropy field of the first write layer is greater than anisotropy field of the second write layer. The Curie temperature of the second write layer is greater than the Curie temperature of the first write layer. The Curie temperature of the first write layer is greater than a Curie temperature of the storage layer.Type: ApplicationFiled: July 19, 2017Publication date: January 24, 2019Inventors: YinFeng DING, Pin-Wei HUANG, Ganping JU, Yingguo PENG, Li GAO, Timothy J. KLEMMER, Kai-Chieh CHANG, Yukiko KUBOTA, Florin ZAVALICHE, Xiaobin ZHU, Qihong WU, Hassib AMINI, Jan-Ulrich THIELE
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Publication number: 20180254061Abstract: Provided herein is an apparatus including a layer stack. A first granular metal layer overlies the layer stack, wherein the first granular metal layer includes first metal grains separated by voids. A first granular non-metal layer overlies the first granular metal layer, wherein the first granular non-metal layer includes first non-metal grains separated by a first segregant. A second granular non-metal layer overlies the first granular non-metal layer, wherein the second granular non-metal layer includes second non-metal grains separated by a second segregant. A second granular metal layer overlies the second granular non-metal layer, wherein the second granular metal layer includes second metal grains separated by a third segregant.Type: ApplicationFiled: March 2, 2017Publication date: September 6, 2018Inventors: Bin LU, Jan-Ulrich THIELE, Ganping JU, Xiaoding MA, YingGuo PENG, YinFeng DING
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Patent number: 9984709Abstract: An apparatus is disclosed. The apparatus includes a storage layer, a thermal exchange control layer disposed over the storage layer, and a write layer disposed over the thermal exchange control layer. A Curie temperature of the thermal exchange control layer is lower than a Curie temperature of the storage layer. The Curie temperature of the thermal exchange control layer is lower than a Curie temperature of the write layer.Type: GrantFiled: March 22, 2017Date of Patent: May 29, 2018Assignee: Seagate Technology LLCInventors: Pin-Wei Huang, YinFeng Ding, YingGuo Peng, Xiaobin Zhu, Kai-Chieh Chang, Yukiko Kubota, Timothy J. Klemmer, QiHong Wu, Ganping Ju, Jan-Ulrich Thiele, Florin Zavaliche
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Patent number: 9940962Abstract: In some embodiments, a thermally assisted data recording medium has a recording layer formed of iron (Fe), platinum (Pt) and a transition metal T selected from a group consisting of Rhodium (Rh), Ruthenium (Ru), Osmium (Os) and Iridium (Ir) to substitute for a portion of the Pt content as FeYPtY-XTX with Y in the range of from about 20 at % to about 80 at % and X in the range of from about 0 at % to about 20 at %.Type: GrantFiled: August 28, 2015Date of Patent: April 10, 2018Assignee: Seagate Technology LLCInventors: Jan-Ulrich Thiele, Yinfeng Ding, YingGuo Peng, Kai-Chieh Chang, Timothy John Klemmer, Li Gao, Yukiko Kubota, Ganping Ju
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Patent number: 9779771Abstract: A stack includes a substrate, a magnetic recording layer comprising FePtX disposed over the substrate, and a capping layer disposed on the magnetic recording layer. The capping layer comprises Co; at least one rare earth element; one or more elements selected from a group consisting of Fe and Pt; and an amorphizing agent comprising one to three elements selected from a group consisting of B, Zr, Ta, Cr, Nb, W, V, and Mo.Type: GrantFiled: March 29, 2016Date of Patent: October 3, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Kangkang Wang, Yingguo Peng, Ganping Ju, Xiaobin Zhu, Li Gao, Yinfeng Ding, Kai Chieh Chang, Timothy J. Klemmer, Yukiko Kubota, Jan-Ulrich Thiele, Thomas P. Nolan
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Patent number: 9672854Abstract: A stack includes a substrate and a magnetic recording layer. Disposed between the substrate and magnetic recording layer is an MgO—Ti(ON) layer.Type: GrantFiled: October 31, 2013Date of Patent: June 6, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Yukiko Kubota, Timothy J. Klemmer, Kai Chieh Chang, Li Gao, Yinfeng Ding, Yingguo Peng, Jan-Ulrich Thiele
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Patent number: 9443544Abstract: A magnetic stack includes multiple granular layers, at least one of the multiple granular layers is a magnetic layer that includes exchange coupled magnetic grains separated by a segregant having Ms greater than 100 emu/cc. Each of the multiple granular layers have anisotropic thermal conductivity.Type: GrantFiled: August 13, 2013Date of Patent: September 13, 2016Assignee: SEAGATE TECHNOLOGY LLCInventors: Yingguo Peng, Jan-Ulrich Thiele, Ganping Ju, Thomas Patrick Nolan, Yinfeng Ding, Alexander Qihong Wu
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Patent number: 9349402Abstract: Provided herein is an apparatus comprising a substrate; a continuous layer over the substrate comprising a first heat sink layer; and a plurality of features over the continuous layer comprising a second heat sink layer, a first magnetic layer over the second heat sink layer, and a second magnetic layer, wherein the first and second magnetic layers are configured to provide a temperature-dependent, exchange spring mechanism.Type: GrantFiled: February 10, 2015Date of Patent: May 24, 2016Assignee: Seagate Technology LLCInventors: Xi Chen, Ganping Ju, Yingguo Peng, Timothy J. Klemmer, Yukiko Kubota, Jan-Ulrich Thiele, David S. Kuo, Kai-Chieh Chang, Kangkang Wang, Li Gao, Yinfeng Ding
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Publication number: 20160099016Abstract: A stack includes a substrate and a magnetic recording layer. Disposed between the substrate and magnetic recording layer is an MgO—Ti(ON) layer.Type: ApplicationFiled: December 10, 2015Publication date: April 7, 2016Inventors: Yukiko Kubota, Timothy John Klemmer, Kai Chieh Chang, Li Gao, Yinfeng Ding, Yingguo Peng, Jan-Ulrich Thiele
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Publication number: 20160064022Abstract: In some embodiments, a thermally assisted data recording medium has a recording layer formed of iron (Fe), platinum (Pt) and a transition metal T selected from a group consisting of Rhodium (Rh), Ruthenium (Ru), Osmium (Os) and Iridium (Ir) to substitute for a portion of the Pt content as FeYPtY-XTX with Y in the range of from about 20 at % to about 80 at % and X in the range of from about 0 at % to about 20 at %.Type: ApplicationFiled: August 28, 2015Publication date: March 3, 2016Inventors: Jan-Ulrich Thiele, Yinfeng Ding, YingGuo Peng, Kai-Chieh Chang, Timothy John Klemmer, Li Gao, Yukiko Kubota, Ganping Ju
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Patent number: 9263076Abstract: A magnetic stack includes a heatsink layer comprising (200) Cu or (200) CuX, a magnetic recording layer, and an interlayer disposed between the heatsink layer and the magnetic recording layer.Type: GrantFiled: March 7, 2013Date of Patent: February 16, 2016Assignee: Seagate Technology LLCInventors: Yingguo Peng, Kai Chieh Chang, Yinfeng Ding, Ganping Ju, Yukiko Kubota, Timothy J. Klemmer, Jan-Ulrich Thiele, Qihong Wu, Xiaobin Zhu
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Publication number: 20150154995Abstract: Provided herein is an apparatus comprising a substrate; a continuous layer over the substrate comprising a first heat sink layer; and a plurality of features over the continuous layer comprising a second heat sink layer, a first magnetic layer over the second heat sink layer, and a second magnetic layer, wherein the first and second magnetic layers are configured to provide a temperature-dependent, exchange spring mechanism.Type: ApplicationFiled: February 10, 2015Publication date: June 4, 2015Inventors: Xi Chen, Ganping Ju, Yingguo Peng, Timothy J. Klemmer, Yukiko Kubota, Jan-Ulrich Thiele, David S. Kuo, Kai-Chieh Chang, Kangkang Wang, Li Gao, Yinfeng Ding
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Publication number: 20150093598Abstract: A stack includes a substrate and a magnetic recording layer. Disposed between the substrate and magnetic recording layer is an MgO—Ti(ON) layer.Type: ApplicationFiled: October 31, 2013Publication date: April 2, 2015Applicant: Seagate Technology LLCInventors: Yukiko Kubota, Timothy J. Klemmer, Kai Chieh Chang, Li Gao, Yinfeng Ding, Yingguo Peng, Jan-Ulrich Thiele
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Patent number: 8988976Abstract: The embodiments disclose a patterned composite magnetic layer structure configured to use magnetic materials having differing temperature and magnetization characteristics in a recording device, wherein the patterned composite magnetic layer structure includes magnetic layers, at least one first magnetic material configured to be used in a particular order to reduce a recording temperature and configured to control and regulate coupling and decoupling of the magnetic layers and at least one second magnetic material with differing temperature characteristics is configured to control recording and erasing of data.Type: GrantFiled: October 16, 2013Date of Patent: March 24, 2015Assignee: Seagate Technology LLCInventors: Xi Chen, Ganping Ju, Yingguo Peng, Timothy J. Klemmer, Yukiko Kubota, Jan-Ulrich Thiele, David S. Kuo, Kai-Chieh Chang, Kangkang Wang, Li Gao, Yinfeng Ding
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Publication number: 20150016237Abstract: The embodiments disclose a patterned composite magnetic layer structure configured to use magnetic materials having differing temperature and magnetization characteristics in a recording device, wherein the patterned composite magnetic layer structure includes magnetic layers, at least one first magnetic material configured to be used in a particular order to reduce a recording temperature and configured to control and regulate coupling and decoupling of the magnetic layers and at least one second magnetic material with differing temperature characteristics is configured to control recording and erasing of data.Type: ApplicationFiled: October 16, 2013Publication date: January 15, 2015Applicant: SEAGATE TECHNOLOGY LLCInventors: Xi Chen, Ganping Ju, Yingguo Peng, Timothy J. Klemmer, Yukiko A. Kubota, Jan-Ulrich Thiele, David S. Kuo, Kai-Chieh Chang, Kangkang Wang, Li Gao, Yinfeng Ding
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Patent number: 8765273Abstract: A data media may generally be configured in accordance with various embodiments with contactingly adjacent first and second heatsink layers that are tuned with a common crystallographic orientation and with different thermal conductivities to provide a predetermined thermal gradient. The data media may further be configured with a recording layer formed with the common crystallographic orientation adjacent the first and second heatsink layers.Type: GrantFiled: October 17, 2012Date of Patent: July 1, 2014Assignee: Seagate Technology LLCInventors: Yukiko Kubota, Xiaobin Zhu, Kai-Chieh Chang, Yingguo Peng, Yinfeng Ding, Timothy John Klemmer, Jan-Ulrich Thiele, Ganping Ju, Qihong Wu, Hassib Amini
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Publication number: 20130288079Abstract: Various magnetic slack embodiments may be constructed with a soft magnetic underlayer (SUL) having a first thickness disposed between a substrate and a magnetic recording layer. A heatsink may have a second thickness and be disposed between the SUL and the magnetic recording layer. The first and second thicknesses may each be tuned to provide predetermined thermal conductivity and magnetic permeability throughout the data media.Type: ApplicationFiled: April 27, 2012Publication date: October 31, 2013Applicant: SEAGATE TECHNOLOGY LLCInventors: Kai-Chieh Chang, Yinfeng Ding, Ganping Ju, Timothy Klemmer, Yukiko Kubota, Thomas P. Nolan, Yingguo Peng, Jan-Ulrich Thiele, Qihong Wu, Xiaobin Zhu
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Patent number: 8507114Abstract: A magnetic stack includes multiple granular layers, at least one of the multiple granular layers is a magnetic layer that includes exchange coupled magnetic grains separated by a segregant having Ms greater than 100 emu/cc. Each of the multiple granular layers have anisotropic thermal conductivity.Type: GrantFiled: June 30, 2011Date of Patent: August 13, 2013Assignee: Seagate Technology LLCInventors: Yingguo Peng, Jan-Ulrich Thiele, Ganping Ju, Thomas Patrick Nolan, Yinfeng Ding, Alexander Qihong Wu