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公开(公告)号：US20190278196A1
公开(公告)日：2019-09-12
申请号：US15773956
申请日：2016-01-27
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Bin Huang , Guang Jin Li
Abstract: The present disclosure relates to an electroconductive roller for an electrophotographic printer. The roller comprises a polyurethane composition containing a polyurethane and an ionic liquid. The cation of the ionic liquid is an organic cation. The polyurethane composition has a specific resistivity of 1×105 Ω·cm to 1×108 Ω·cm.
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公开(公告)号：US20140348526A1
公开(公告)日：2014-11-27
申请号：US13901782
申请日：2013-05-24
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Matthew G. Lopez , David F. Chiu , David Sabo , John W. Godden , Christopher S. Tanner , Eric G. Nelson , Guang Jin Li , James Michael Pingel
CPC classification number: G03G15/55 , G03G15/10 , G03G15/105
Abstract: In one example, a processor readable medium has instructions thereon that, when executed by a processor, cause a system to detect a change in electrical conduction of a liquid moving at an interface between two surfaces and determine a conductivity of the liquid based on the detected change in conduction.
Abstract translation: 在一个示例中，处理器可读介质在其上具有指令，当由处理器执行时，该指令使得系统检测在两个表面之间的界面处移动的液体的电传导变化，并且基于检测到的液体确定导电性 传导变化。
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公开(公告)号：US09798259B2
公开(公告)日：2017-10-24
申请号：US14652749
申请日：2013-01-29
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Alexey S. Kabalnov , Guang Jin Li , Brian E. Curcio , Yaron Grinwald , Reut Avigdor
IPC: G03G9/09 , G03G9/08 , G03G9/135 , G03G13/10 , G03G9/12 , C09D11/037 , C09D11/106 , C09D11/52
CPC classification number: G03G9/0902 , C09D11/037 , C09D11/106 , C09D11/52 , G03G9/0804 , G03G9/12 , G03G9/1355 , G03G13/10 , Y10T428/24901
Abstract: Described herein is an electrostatic ink composition comprising a liquid carrier; and chargeable particles comprising a co-polymer of an alkylene monomer and an acrylic acid monomer, and a pearlescent, non-metallic pigment, wherein the chargeable particles are dispersed in the liquid carrier. Also described herein are a method of electrophotographic printing and a print substrate.
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公开(公告)号：US09745458B2
公开(公告)日：2017-08-29
申请号：US14904502
申请日：2013-07-26
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Greg S. Smith, Jr. , Ben Wynne , Guang Jin Li
CPC classification number: C08L29/04 , B29C64/40 , B29K2031/04 , B29K2067/046 , B29L2009/00 , B33Y70/00 , C23C14/34
Abstract: The present disclosure provides composite support material and associated methods used in the fabrication of three-dimensional objects. In one example, a composite support material for three-dimensional printing can include a soluble filament core that is soluble in a solvent and is encapsulated with an insoluble shell that is insoluble in the solvent. The composite support material is stable in air and, when printed, is dissolvable in the solvent.
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公开(公告)号：US20160194492A1
公开(公告)日：2016-07-07
申请号：US14904502
申请日：2013-07-26
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Greg S. Smith, JR. , Ben Wynne , Guang Jin Li
CPC classification number: C08L29/04 , B29C64/40 , B29K2031/04 , B29K2067/046 , B29L2009/00 , B33Y70/00 , C23C14/34
Abstract: The present disclosure provides composite support material and associated methods used in the fabrication of three-dimensional objects. In one example, a composite support material for three-dimensional printing can include a soluble filament core that is soluble in a solvent and is encapsulated with an insoluble shell that is insoluble in the solvent. The composite support material is stable in air and, when printed, is dissolvable in the solvent.
Abstract translation: 本公开提供了用于制造三维物体的复合支撑材料和相关联的方法。 在一个实例中，用于三维印刷的复合载体材料可以包括可溶于溶剂的可溶性长丝芯，并且用不溶于溶剂的不溶性壳包封。 复合载体材料在空气中稳定，并且当印刷时可溶于溶剂中。
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Patent Agency Ranking
公开(公告)号：US20180321618A1
公开(公告)日：2018-11-08
申请号：US15773962
申请日：2016-01-27
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Guang Jin Li , Stanley J. Kozmiski , Seongsik Chang , Daniel Tanchangco , David Sabo , Thomas Anthony , Omer Gila
CPC classification number: G03G15/10 , C08L75/04 , G03G13/10 , G03G15/0233 , G03G15/0818 , G03G2215/0861
Abstract: The present disclosure relates to a liquid electrophotographic ink developer unit. The unit comprises a developer roller, and a secondary roller that co-operates with the developer roller. The developer roller is formed of a material having a specific resistivity of less than 1×106 Ω·cm. The secondary roller is formed of a material having a specific resistivity of 1×104 to 1×109 Ω·cm.
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公开(公告)号：US20210333736A1
公开(公告)日：2021-10-28
申请号：US16605953
申请日：2018-04-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Guang Jin Li , Jin Zou
IPC: G03G15/00 , G03G15/095
Abstract: In one example of the disclosure, a first voltage is provided to an electrode of a development assembly during a first printing operation. The developer assembly includes a current-resistant coating and is to develop print fluid with conductive particles. Contemporaneous with the providing of the first voltage to the electrode, a second voltage is provided to a squeegee roller of the developer assembly. Data indicative of a measurement of optical density of a first image printed utilizing the developer assembly is received. During a second printing operation, if the measured optical density is outside a target optical density, contemporaneously the first voltage is provided to the electrode and a third voltage to the squeegee roller to adjust image optical density.
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公开(公告)号：US10983459B2
公开(公告)日：2021-04-20
申请号：US15773966
申请日：2016-01-27
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Guang Jin Li , Daniel Tanchangco , Paul McCaslin , Anna Chin, Sr. , Bin Huang , Kai-Kong Iu
Abstract: The present disclosure relates to a liquid electrophotographic ink developer unit. The unit comprises a developer roller comprising a layer formed from a polymer composition containing a conductive filler, whereby the polymer composition has a specific resistivity of less than 1×106 Ω·cm. The unit also comprises a secondary roller that co-operates with the developer roller.
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公开(公告)号：US10514633B2
公开(公告)日：2019-12-24
申请号：US15773962
申请日：2016-01-27
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Guang Jin Li , Stanley J. Kozmiski , Seongsik Chang , Daniel Tanchangco , David Sabo , Thomas Anthony , Omer Gila
Abstract: The present disclosure relates to a liquid electrophotographic ink developer unit. The unit comprises a developer roller, and a secondary roller that co-operates with the developer roller. The developer roller is formed of a material having a specific resistivity of less than 1×106 Ω·cm. The secondary roller is formed of a material having a specific resistivity of 1×104 to 1×109 Ω·cm.
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公开(公告)号：US20180321619A1
公开(公告)日：2018-11-08
申请号：US15773966
申请日：2016-01-27
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Guang Jin Li , Daniel Tanchangco , Paul McCaslin , Anna Chin, Sr. , Bin Huang , Kai-Kong Iu
CPC classification number: G03G15/10 , C08L75/04 , G03G13/10 , G03G15/0233 , G03G15/0818 , G03G15/104 , G03G2215/0861
Abstract: The present disclosure relates to a liquid electrophotographic ink developer unit. The unit comprises a developer roller comprising a layer formed from a polymer composition containing a conductive filler, whereby the polymer composition has a specific resistivity of less than 1×106 Ω·cm. The unit also comprises a secondary roller that co-operates with the developer roller.
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