Patents by Inventor Junhua Zhang

Junhua Zhang 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).

  • Publication number: 20170057223
    Abstract: A liquid ejecting apparatus includes a recording head including a plurality of nozzles from which liquid is ejected, a plurality of pressure chambers which communicate with each nozzle, respectively, a piezoelectric element which causes liquid to be ejected from the nozzle by causing a pressure fluctuation in the liquid in the pressure chamber, and a printer controller which is connected to the piezoelectric element through an individual signal line, and supplies a driving signal which drives the piezoelectric element through the individual signal line. The individual signal line is provided as many as n times (here, n is natural number of 2 or more) or more of the number of pressure chambers.
    Type: Application
    Filed: August 25, 2016
    Publication date: March 2, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Junhua ZHANG
  • Publication number: 20170028715
    Abstract: When a nozzle abnormality detecting mechanism detects an abnormality of the nozzle, in the maintenance process of causing the drive waveform to be applied plural times to the actuator corresponding to the nozzle that the detecting mechanism detects as being abnormal, and thereby causing the ejecting operation to be performed, at least a first-time drive waveform applied to the actuator is a flushing pulse which causes a meniscus in the nozzle not to be positively attracted from an initial position to the pressure chamber, but causes the meniscus to be extruded to the ejection side and thereby causes the liquid to be ejected from the nozzle.
    Type: Application
    Filed: September 27, 2016
    Publication date: February 2, 2017
    Inventor: Junhua ZHANG
  • Patent number: 9492997
    Abstract: A liquid ejecting apparatus includes a liquid ejecting head in which liquid is ejected from a nozzle as liquid droplets using a driving signal generated by a driving signal generation unit, wherein the driving signal generation unit fits a difference between a maximum voltage and a minimum voltage, and generates a first driving signal that is transmitted when an ambient temperature is within a predetermined low temperature range, and a second driving signal that is transmitted when the temperature is within a predetermined high temperature range, further the first and second driving signals include a first element that forms a liquid column by pressurizing the pressure chamber and projecting the liquid in the nozzle, and a second element that projects the pressure chamber in a projecting direction of the liquid column from a position where a liquid surface inside the nozzle is connected to an internal surface of the nozzle.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: November 15, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Junhua Zhang, Satoru Hosono
  • Patent number: 9475280
    Abstract: When a nozzle abnormality detecting mechanism detects an abnormality of the nozzle, in the maintenance process of causing the drive waveform to be applied plural times to the actuator corresponding to the nozzle that the detecting mechanism detects as being abnormal, and thereby causing the ejecting operation to be performed, at least a first-time drive waveform applied to the actuator is a flushing pulse which causes a meniscus in the nozzle not to be positively attracted from an initial position to the pressure chamber, but causes the meniscus to be extruded to the ejection side and thereby causes the liquid to be ejected from the nozzle.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: October 25, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Junhua Zhang
  • Publication number: 20160250862
    Abstract: By providing a rotating body which supports three-dimensional recording media on a support surface in a direction which intersects with a gravity direction and which has a rotating shaft in the direction which intersects with the support surface, and a recording head which carries out recording onto recording media by discharging ink in a direction which intersects with the rotating shaft, recording is carried out with high quality with respect to the recording media while firmly supporting the three-dimensional recording media.
    Type: Application
    Filed: May 6, 2016
    Publication date: September 1, 2016
    Inventor: Junhua ZHANG
  • Patent number: 9427959
    Abstract: The degree of thickening of ink for each of nozzles based on dot pattern data is calculated based on a thickening value Z(n+1)=Z(n)×a×bss×bmm×bll, and information the dot pattern data corresponding to the nozzle, which indicates that small dots are formed in when the thickening value is equal to or greater than a threshold is replaced with information indicating that middle dots which are larger than the small dots are formed.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: August 30, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Junhua Zhang
  • Publication number: 20160192645
    Abstract: Aqueous pesticidal mixtures comprising a microencapsulated pesticide and an agent that modulates the release rate of the pesticide from the microcapsules are described. Also described are various methods of modulating the release rate of a microencapsulated pesticide in a pesticidal mixture. Further, various pesticidal mixtures comprising a microencapsulated pesticide and a co-pesticide that provides for enhanced crop safety are described.
    Type: Application
    Filed: January 6, 2016
    Publication date: July 7, 2016
    Applicant: Monsanto Technology LLC
    Inventors: Junhua Zhang, John W. Hemminghaus, Todd Charles Friedman, Wenjin Deng, Liwei Yuan
  • Patent number: 9352558
    Abstract: The degree of thickening of ink for each of nozzles based on dot pattern data is calculated based on a thickening value Z (n+1)=Z (n)×a×bss×bmm×bll, and information the dot pattern data corresponding to the nozzle, which indicates that small dots are formed in when the thickening value is equal to or greater than a threshold is replaced with information indicating that middle dots which are larger than the small dots are formed. On the other hand, in a case where the thickening value is returned to be smaller than the threshold (a previous state) when after the thickening value becomes equal to or greater than the threshold, information of the dot pattern data corresponding to the nozzle, which indicates that the small dots are formed is maintained as it is without being replaced.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: May 31, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Junhua Zhang
  • Patent number: 9352550
    Abstract: By providing a rotating body which supports three-dimensional recording media on a support surface in a direction which intersects with a gravity direction and which has a rotating shaft in the direction which intersects with the support surface, and a recording head which carries out recording onto recording media by discharging ink in a direction which intersects with the rotating shaft, recording is carried out with high quality with respect to the recording media while firmly supporting the three-dimensional recording media.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: May 31, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Junhua Zhang
  • Publication number: 20160067959
    Abstract: The degree of thickening of ink for each of nozzles based on dot pattern data is calculated based on a thickening value Z(n+1)=Z(n)×a×bss×bmm×bll, and information the dot pattern data corresponding to the nozzle, which indicates that small dots are formed in when the thickening value is equal to or greater than a threshold is replaced with information indicating that middle dots which are larger than the small dots are formed.
    Type: Application
    Filed: September 10, 2015
    Publication date: March 10, 2016
    Inventor: Junhua ZHANG
  • Publication number: 20160039201
    Abstract: The degree of thickening of ink for each of nozzles based on dot pattern data is calculated based on a thickening value Z (n+1)=Z (n)×a×bss×bmm×bll, and information the dot pattern data corresponding to the nozzle, which indicates that small dots are formed in when the thickening value is equal to or greater than a threshold is replaced with information indicating that middle dots which are larger than the small dots are formed. On the other hand, in a case where the thickening value is returned to be smaller than the threshold (a previous state) when after the thickening value becomes equal to or greater than the threshold, information of the dot pattern data corresponding to the nozzle, which indicates that the small dots are formed is maintained as it is without being replaced.
    Type: Application
    Filed: August 5, 2015
    Publication date: February 11, 2016
    Inventor: Junhua ZHANG
  • Publication number: 20150360471
    Abstract: When a length of a central axis direction of a straight part is L [?m], and a floating speed of a bubble set according to a diameter d of a nozzle, a density ? of ink, and the diameter r of the bubble is Vr [?m/s], a flushing process is performed by driving an actuator with a flushing pulse within (L+5)/Vr [s] after a nozzle surface is wiped with a wiper so as to perform an ejecting operation. The flushing pulse in the flushing process is preferably a driving waveform which does not actively draw a meniscus in the nozzle toward a pressure chamber side from the initial position, and makes the ink be ejected from the nozzle by extruding the meniscus toward an ejecting side.
    Type: Application
    Filed: June 8, 2015
    Publication date: December 17, 2015
    Inventors: Junhua ZHANG, Miharu Kanaya
  • Patent number: 9211310
    Abstract: The present invention relates to a use of Chinese medicine composition in preparation of medicine for secondary prevention of myocardial infarction. Said Chinese medicine composition is prepared from a formula comprising the crude drugs by the following weight percentages: Radix Astragali 22.2%˜66.8%, Radix Salviae Miltiorrhizae 11.6%˜33.4%, Radix Notoginseng 2.5%˜13.5%, and Lignum Dalbergiae Odoriferae 14.5%˜44.3%.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: December 15, 2015
    Assignee: TASLY PHARMACEUTICAL GROUP CO., LTD
    Inventors: Boli Zhang, Hongcai Shang, Chen Yao, Baoyan Liu, Weiliang Weng, Yuxia Zhao, Guohua Dai, Xiumei Gao, Ming Ren, Junhua Zhang, Hongbo Cao, Jingyuan Mao, Xuejun Hu, Zhisheng Jin, Junping Zhang, Yiyu Cheng, Xijun Yan, Jiazhen Qu, Hui Wang, Hongjuan Xu, Wenke Zheng
  • Publication number: 20150352847
    Abstract: A flushing process is performed in which a nozzle surface of a recording head is wiped with a wiper and then an ejecting operation is performed by driving an actuator with a flushing pulse within 3.5 [s]. The flushing pulse in the flushing process is preferably a driving waveform which does not actively draw a meniscus in the nozzle toward a pressure chamber side, and makes the ink be ejected from the nozzle by extruding the meniscus toward an ejecting side.
    Type: Application
    Filed: June 8, 2015
    Publication date: December 10, 2015
    Inventors: Junhua ZHANG, Miharu KANAYA
  • Publication number: 20150343763
    Abstract: When a nozzle abnormality detecting mechanism detects an abnormality of the nozzle, in the maintenance process of causing the drive waveform to be applied plural times to the actuator corresponding to the nozzle that the detecting mechanism detects as being abnormal, and thereby causing the ejecting operation to be performed, at least a first-time drive waveform applied to the actuator is a flushing pulse which causes a meniscus in the nozzle not to be positively attracted from an initial position to the pressure chamber, but causes the meniscus to be extruded to the ejection side and thereby causes the liquid to be ejected from the nozzle.
    Type: Application
    Filed: May 22, 2015
    Publication date: December 3, 2015
    Inventor: Junhua ZHANG
  • Publication number: 20150295634
    Abstract: While a user utilizes a communication device to communicate with other devices over a network, certain technical issues may cause the interruption or disconnection of the communication. The communication device may be configured to relay the communication to a secondary device to continue the communication without interrupting the communication.
    Type: Application
    Filed: August 9, 2013
    Publication date: October 15, 2015
    Inventors: Junhua Zhang, Qi Li, Xuefeng Song
  • Publication number: 20150272116
    Abstract: Herbicidal mixtures comprising an auxin herbicide and an adjuvant comprising a salt having a quaternary ammonium cation and/or a phosphonium cation are described. The adjuvant reduces the volatility of the auxin herbicide and/or counteracts the negative impact on the volatility of the auxin herbicide caused by the addition of a co-herbicide. Methods of preparing the herbicidal mixtures are also described.
    Type: Application
    Filed: November 5, 2013
    Publication date: October 1, 2015
    Applicant: Monsanto Technology LLC
    Inventors: Junhua Zhang, Daniel R. Wright
  • Publication number: 20150264924
    Abstract: The present invention relates generally low volatility herbicidal compositions comprising at least one auxin herbicide and at least one monocarboxylic acid, or monocarboxylate thereof. The invention further relates generally to methods for preparing and using such low volatility herbicidal compositions, including methods for controlling auxin-susceptible plant growth on agricultural and non-agricultural lands.
    Type: Application
    Filed: November 5, 2013
    Publication date: September 24, 2015
    Inventors: John W. Hemminghaus, Alison MacInnes, Daniel R. Wright, Junhua Zhang
  • Patent number: 9073320
    Abstract: An ink jet type recording head includes a plurality of pressure generation chambers which are filled with ink, and piezoelectric elements which eject ink droplet through nozzle openings which are provided so as to correspond to each pressure generation chamber by applying pressure to the ink in each pressure generation chamber. The pressure generation chamber has a shape such that the piezoelectric element in the opposite side to a protrusion side in which at least a portion of the piezoelectric element protrudes out of the pressure generation chamber is deformed more easily than that in the protrusion side.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: July 7, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Junhua Zhang
  • Patent number: 9061501
    Abstract: Provided is a manufacturing method of a liquid ejecting head having a flow-path forming substrate in which a liquid flow path is provided to communicate with a nozzle opening through which liquid is discharged. The method includes performing wet etching on both surfaces of the flow-path forming substrate and forming the liquid flow path by removing a burr that is formed when the wet etching is performed on the flow-path forming substrate.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: June 23, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Junhua Zhang