公开(公告)号：US20210083360A1

公开(公告)日：2021-03-18

申请号：US16618854

申请日：2017-08-01

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Ning Ge ,  Robert Ionesco ,  Steven J Simske

IPC: H01Q1/22 ,  H05K3/12 ,  G06K19/07

Abstract: With the purpose of having RFID tags that are cheap to produce and that are environmentally friendly, it is disclosed a method and a system to manufacture chipless RFID tags. The method and system comprises printing a conductive track on a carbon-based substrate and selectively heating the substrate on the parts comprising the conductive track. The printing of the conductive track envisages using an ink comprising at least one of a metal carbide, a metal boride or a metal nitride.

公开(公告)号：US10712278B2

公开(公告)日：2020-07-14

申请号：US15569764

申请日：2015-06-29

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Charles M. Santori ,  Ning Ge ,  Zhiyong Li ,  Steven Barcelo

IPC: G01N21/03 ,  G01N21/65 ,  G01N21/11

Abstract: Provided in one example is an analyte detection package that includes a chamber, a surface-enhanced luminescence analyte stage within the chamber, and a lens integrated as part of the package to focus radiation onto the analyte stage.

公开(公告)号：US10520441B2

公开(公告)日：2019-12-31

申请号：US14775839

申请日：2013-03-14

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Zhiyong Li ,  Ning Ge ,  Steven J. Barcelo ,  Huei Pei Kuo

IPC: B82Y30/00 ,  G01N21/65 ,  B82Y35/00 ,  C25D1/02 ,  C25D1/20 ,  G01N21/64 ,  G01N27/04 ,  G01N27/22 ,  G01N33/02 ,  G01N33/22

Abstract: Devices to detect a substance and methods of producing such a device are disclosed. An example device to detect a substance includes a housing defining a first chamber and a substrate coupled to the housing. The substrate includes nanostructures positioned within the first chamber. The nanostructures are to react to the substance when exposed thereto. The device includes a first heater positioned within the first chamber. The heater is to heat at least a portion of the substance to ready the device for analysis.

公开(公告)号：US20190261884A1

公开(公告)日：2019-08-29

申请号：US16343865

申请日：2016-10-25

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Ning Ge ,  Ralph A. Morales ,  Terrance J. OShea ,  Helen A. Holder ,  David George ,  Hafid Hamadene

IPC: A61B5/0432 ,  A61B5/0408 ,  A61B5/04 ,  G11C13/00

Abstract: One example of a device includes a sensor, a memristor code comparator, and a controller. The sensor is to provide a sensor signal. The memristor code comparator is to compare the sensor signal to a reference signal. The controller is to determine a status of the sensor signal based on the comparison.

公开(公告)号：US20190240985A1

公开(公告)日：2019-08-08

申请号：US16317362

申请日：2016-10-07

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Ning Ge ,  Chien-Hua Chen ,  Michael W. Cumbie

IPC: B41J2/175 ,  B41J2/195 ,  G01F23/24

CPC classification number: B41J2/17566 ,  B41J2/195 ,  B41J2002/17579 ,  G01F23/0061 ,  G01F23/242 ,  G01F23/243

Abstract: A fluid reservoir (101) includes a number of electrode pairs disposed within the fluid reservoir. Each of the electrode pairs includes a number of sensing electrodes (103), and a number of electrical traces (105) wherein the sensing electrodes are coupled to a respective one of the electrical traces. The fluid reservoir also includes a common electrode (104) electrically coupled to a voltage source (106). A number of properties of a fluid (110) within the fluid reservoir are detected by applying a voltage between the sensing electrodes in an electrode pair, and a level of the fluid within the fluid reservoir is detected by applying a voltage between the electrodes and the common electrode. A multiplexer (102) may be used to selectively couple the sensing electrodes (103) to a processing device (108). The fluid reservoir may be a printing fluid container.

公开(公告)号：US10336069B2

公开(公告)日：2019-07-02

申请号：US15748831

申请日：2015-10-30

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Ning Ge ,  Ser Chia Koh ,  Chaw Sing Ho ,  John Patrick Oliver

IPC: B41J2/045 ,  B41J2/14 ,  H05K1/16

Abstract: In one example, a printhead having an electrically-functional optical target. The printhead includes a substrate. An optical target having an optically-distinguishable shape and formed from at least one polysilicon strip is deposited on the substrate. An electrical connection to at least one of the polysilicon strips connect the strip into a circuit that is deposited on the substrate.

公开(公告)号：US20190154587A1

公开(公告)日：2019-05-23

申请号：US16098067

申请日：2016-07-20

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Ning Ge ,  Robert G. Walmsley ,  Helen A. Holder ,  Steven J. Simske ,  Anita Rogacs ,  Viktor Shkolnikov

IPC: G01N21/65

CPC classification number: G01N21/658 ,  B82Y15/00

Abstract: A gas conduit directs a flow of gas from a gas flow source. A surface enhanced luminescence (SEL) stage is within the conduit and includes a substrate and nano fingers projecting from the substrate. A heater heats the nano fingers to a temperature so as to soften the nano fingers such that the nano fingers collapse towards each other to capture molecules entrained in the gas therebetween.

公开(公告)号：US20190145897A1

公开(公告)日：2019-05-16

申请号：US16097962

申请日：2016-07-22

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Ning Ge ,  Helen A. Holder ,  Steven J. Simske ,  Anita Rogacs ,  Viktor Shkolnikov

IPC: G01N21/65 ,  G01J3/44

Abstract: An activatable SEL sensor stage may include a substrate, cation metal-based material masses supported by the substrate and isolated from one another and dielectric capping layer over the cation metal-based material masses to inhibit oxidation of the cation metal-based material masses.

公开(公告)号：US10170180B2

公开(公告)日：2019-01-01

申请号：US15547123

申请日：2015-04-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Ning Ge ,  Wai Mun Wong ,  Leong Yap Chia ,  Ser Chia Koh

IPC: G11C11/00 ,  G11C13/00 ,  B41J2/045 ,  B41J2/175 ,  G11C7/04 ,  G11C11/56 ,  H01L27/24 ,  H01L45/00

Abstract: A memory cell includes an input coupled to a read line, an output coupled to a circuit ground, a bi-polar memristor, and at least one address switch coupled to an address line to select the memory cell. A memory includes the bi-polar memristor and a one-way current conducting device, wherein the one-way current conducting device is positioned between the memristor cell output and the circuit ground, or between the read line and the memristor cell input.

公开(公告)号：US20180290457A1

公开(公告)日：2018-10-11

申请号：US15570660

申请日：2015-07-24

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Ning Ge ,  Leong Yap Chia ,  Wei Mun Wong ,  Ser Chia Koh

IPC: B41J2/175 ,  B41J2/14

Abstract: In an example implementation, a method of operating a fluid sensing device includes enabling a fluid level sensing circuit on a printhead to determine a fluid level by sharing an applied charge between a capacitive sensor and a reference capacitor to determine a capacitance value of the capacitive sensor. The method includes enabling a fluid property sensing circuit on the printhead to determine a fluid property by measuring a transistor voltage that indicates a concentration of ions gathered on the capacitive sensor.