Patents by Inventor Xi Zeng

Xi Zeng 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).

  • Patent number: 8236393
    Abstract: An inkjet recording material which comprises a supporting substrate, a first bottom base coat applied to at least one surface of said substrate, and a second topcoat layer applied over said base coat. In said inkjet recording material, the base coat includes a combination of at least three pigments and the topcoat layer comprises pigments selected from the group consisting of fumed silica, silica gel, precipitated silica, colloidal silica, fumed alumina, boehmite, pseudo-boehmite or a mixture thereof.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: August 7, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Xi Zeng, Jason Swei, Kali Campbell
  • Publication number: 20120120149
    Abstract: An inkjet recording material which comprises an extruded mixture of thermoplastic polymers and non-chlorinated polyolefin materials. The mixture contains from 0.5 wt % to 30 wt % of non-chlorinated polyolefin materials based on the total weight of the polymers constituting the material.
    Type: Application
    Filed: November 6, 2009
    Publication date: May 17, 2012
    Inventors: Molly Hladik, Lisa A. Underwood, Christopher Arend Toles, Xi Zeng
  • Publication number: 20120034398
    Abstract: A media suitable for inkjet web press printing is disclosed herein. The media includes a paper substrate and an ink receptive layer coated onto at least one surface of the paper substrate. The ink receptive layer includes: inorganic pigments; at least one water-based binder; a water-soluble metallic salt; a colorant durability enhancer selected from the group consisting of boric acid, borax, sodium tetraborate, phenyl boronic acid, butyl boronic acid and combinations thereof; and a coefficient of friction (COF) reducer selected from the group consisting of polyethylene wax, paraffin wax, carnauba wax, polypropylene wax, polytetrafluoroethylene wax, and combinations thereof.
    Type: Application
    Filed: April 3, 2009
    Publication date: February 9, 2012
    Inventors: Yongzhong Wang, Xi Zeng, Kelly Ronk
  • Patent number: 8080292
    Abstract: A print medium is disclosed which includes a base paper containing a first side and a reverse side, and a coating layer disposed on at least the first side. The coating layer contains a mixture that includes about 10-90 weight percent of a first pigment comprising precipitated calcium carbonate particles, about 5-60 weight percent of a second pigment comprising particles of a liquid absorptive material having a larger size than the first pigment particles and having a different shape that of the first pigment particles, and about 1-50 weight percent of a third pigment comprising particles of a liquid absorptive high surface area material having a surface area of at least 50 m2/gram, and having a smaller size that both of the first and second pigments. Weight percents are by combined weight of the first, second and third pigments.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: December 20, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Xi Zeng
  • Publication number: 20110224262
    Abstract: Pyrazole derivatives of Formula Ia and pharmaceutical compositions thereof that modulate the activity of the PGI2 receptor.
    Type: Application
    Filed: November 24, 2009
    Publication date: September 15, 2011
    Applicant: ARENA PHARMACEUTICALS, INC.
    Inventors: Thuy-Anh Tran, Jason B. Ibarra, Young-Jun Shin, Brett Ullman, Ning Zou, Xi Zeng
  • Publication number: 20110104410
    Abstract: A coated medium for inkjet printing, which includes a supporting substrate and a coating layer formed on at least one side thereof. The coating layer includes at least one binder and at least two different inorganic pigments: modified calcium carbonate (MCC) and either precipitated calcium carbonate (PCC) or clay.
    Type: Application
    Filed: October 30, 2009
    Publication date: May 5, 2011
    Inventors: Christopher Toles, Xi Zeng, Jason Swei
  • Publication number: 20110008542
    Abstract: An inkjet recording material which comprises a supporting substrate, a first bottom base coat applied to at least one surface of said substrate, and a second topcoat layer applied over said base coat. In said inkjet recording material, the base coat includes a combination of at least three pigments and the topcoat layer comprises pigments selected from the group consisting of fumed silica, silica gel, precipitated silica, colloidal silica, fumed alumina, boehmite, pseudo-boehmite or a mixture thereof.
    Type: Application
    Filed: July 9, 2009
    Publication date: January 13, 2011
    Inventors: Xi Zeng, Jason Swei, Kali Campbell
  • Publication number: 20100304057
    Abstract: A coated medium for inkjet printing is disclosed. The coated medium includes a coating layer formed on at least one side of a supporting substrate. The coating layer includes precipitated calcium carbonate with an average particle size of less than about 1 micron, silica with a surface area of greater than 100 m2/g, a third inorganic pigment with an average particle size greater than that of precipitated calcium carbonate and selected from the group consisting of ground calcium carbonate (GCC) and clays, and at least one binder, wherein silica is present in an amount of at least 15 parts based on 100 parts of inorganic pigments in total.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 2, 2010
    Inventors: Xi Zeng, Jason Swei, Kali M. Campbell
  • Publication number: 20100092678
    Abstract: A print medium is disclosed which includes a base paper containing a first side and a reverse side, and a coating layer disposed on at least the first side. The coating layer contains a mixture that includes about 10-90 weight percent of a first pigment comprising precipitated calcium carbonate particles, about 5-60 weight percent of a second pigment comprising particles of a liquid absorptive material having a larger size than the first pigment particles and having a different shape that of the first pigment particles, and about 1-50 weight percent of a third pigment comprising particles of a liquid absorptive high surface area material having a surface area of at least 50 m2/gram, and having a smaller size that both of the first and second pigments. Weight percents are by combined weight of the first, second and third pigments.
    Type: Application
    Filed: October 15, 2008
    Publication date: April 15, 2010
    Inventor: Xi ZENG
  • Patent number: 7369430
    Abstract: Magnetic Random Access Memory (MRAM) can be programmed and read as fast as Static Random Access Memory (SRAM) and has the non-volatile characteristics of electrically eraseable programmable read only memory (EEPROM), FLASH EEPROM or one-time-programmable (OTP) EPROM. Due to the randomness of manufacturing process, the magnetic tunnel junctions (MTJ) in MRAM cells will require different row and column current combinations to program and not to disturb the other cells. Based on adaptive current sources for programming, this disclosure teaches methods, designs, test algorithms and manufacturing flows for generating EEPROM, FLASH EEPROM or OTP EPROM like memories from MRAM.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: May 6, 2008
    Assignees: Headway Technologies, Inc., Applied Spintronics, Inc.
    Inventors: Hsu Kai Yang, Xi Zeng Shi, Po-Kang Wang, Bruce Yang
  • Patent number: 7335961
    Abstract: An MTJ element is formed between orthogonal word and bit lines. The bit line is a composite line which includes a high conductivity layer and a soft magnetic layer under the high conductivity layer. During operation, the soft magnetic layer concentrates the magnetic field of the current and, due to its proximity to the free layer, it magnetically couples with the free layer in the MTJ. This coupling provides thermal stability to the free layer magnetization and ease of switching and the coupling may be further enhanced by inducing a shape or crystalline anisotropy into the free layer during formation.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: February 26, 2008
    Assignees: Headway Technologies, Inc., Applied Spintronics, Inc.
    Inventors: Yimin Guo, Tai Min, Pokang Wang, Xi Zeng Shi
  • Patent number: 7321519
    Abstract: Magnetic Random Access Memory (MRAM) can be programmed and read as fast as Static Random Access Memory (SRAM) and has the non-volatile characteristics of electrically eraseable programmable read only memory (EEPROM), FLASH EEPROM or one-time-programmable (OTP) EPROM. Due to the randomness of manufacturing process, the magnetic tunnel junctions (MTJ) in MRAM cells will require different row and column current combinations to program and not to disturb the other cells. Based on adaptive current sources for programming, this disclosure teaches methods, designs, test algorithms and manufacturing flows for generating EEPROM, FLASH EEPROM or OTP EPROM like memories from MRAM.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: January 22, 2008
    Assignees: Headway Technologies, Inc., Applied Spintronill, Inc.
    Inventors: Hsu Kai Yang, Xi Zeng Shi, Po-Kang Wang, Bruce Yang
  • Patent number: 7224628
    Abstract: Magnetic Random Access Memory (MRAM) can be programmed and read as fast as Static Random Access Memory (SRAM) and has the non-volatile characteristics of electrically eraseable programmable read only memory (EEPROM), FLASH EEPROM or one-time-programmable (OTP) EPROM. Due to the randomness of manufacturing process, the magnetic tunnel junctions (MTJ) in MRAM cells will require different row and column current combinations to program and not to disturb the other cells. Based on adaptive current sources for programming, this disclosure teaches methods, designs, test algorithms and manufacturing flows for generating EEPROM, FLASH EEPROM or OTP EPROM like memories from MRAM.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: May 29, 2007
    Assignees: Headway Technologies, Inc., Applied Spintronics, Inc.
    Inventors: Hsu Kai Yang, Xi Zeng Shi, Po-Kang Wang, Bruce Yang
  • Patent number: 7085183
    Abstract: Magnetic Random Access Memory (MRAM) can be programmed and read as fast as Static Random Access Memory (SRAM) and has the non-volatile characteristics of electrically eraseable programmable read only memory (EEPROM), FLASH EEPROM or one-time-programmable (OTP) EPROM. Due to the randomness of manufacturing process, the magnetic tunnel junctions (MTJ) in MRAM cells will require different row and column current combinations to program and not to disturb the other cells. Based on adaptive current sources for programming, this disclosure teaches methods, designs, test algorithms and manufacturing flows for generating EEPROM, FLASH EEPROM or OTP EPROM like memories from MRAM.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: August 1, 2006
    Assignees: Headway Technologies, Inc., Applied Spintronics, Inc.
    Inventors: Hsu Kai Yang, Xi Zeng Shi, Po-Kang Wang, Bruce Yang
  • Patent number: 6979586
    Abstract: An MTJ element is formed between orthogonal word and bit lines. The bit line is a composite line which includes a high conductivity layer and a soft magnetic layer under the high conductivity layer. During operation, the soft magnetic layer concentrates the magnetic field of the current and, due to its proximity to the free layer, it magnetically couples with the free layer in the MTJ. This coupling provides thermal stability to the free layer magnetization and ease of switching and the coupling may be further enhanced by inducing a shape or crystalline anisotropy into the free layer during formation.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: December 27, 2005
    Assignees: Headway Technologies, Inc., Applied Spintronics, Inc.
    Inventors: Yimin Guo, Tai Min, Pokang Wang, Xi Zeng Shi
  • Publication number: 20040233760
    Abstract: An MTJ element is formed between orthogonal word and bit lines. The bit line is a composite line which includes a high conductivity layer and a soft magnetic layer under the high conductivity layer. During operation, the soft magnetic layer concentrates the magnetic field of the current and, due to its proximity to the free layer, it magnetically couples with the free layer in the MTJ. This coupling provides thermal stability to the free layer magnetization and ease of switching and the coupling may be further enhanced by inducing a shape or crystalline anisotropy into the free layer during formation.
    Type: Application
    Filed: June 21, 2004
    Publication date: November 25, 2004
    Applicant: Headway Technologies, Inc.
    Inventors: Yimin Guo, Tai Min, Pokang Wang, Xi Zeng Shi