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公开(公告)号：US12038698B2
公开(公告)日：2024-07-16
申请号：US17911213
申请日：2020-04-08
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Jeffrey Zampell , John W. Godden
CPC classification number: G03G15/0817 , G03G15/0898 , G03G15/104 , G03G2221/1657
Abstract: In one example in accordance with the present disclosure, a developer unit seal is described. The developer unit seal includes an endcap. The endcap has an opening to receive a dynamic seal for a roller, an inlet to receive print fluid, and a channel embedded in a surface of the endcap. The channel connects the inlet with the opening to direct print fluid to the opening. The developer unit seal also includes a sealing member to cover the channel.
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公开(公告)号：US12036799B2
公开(公告)日：2024-07-16
申请号：US17704848
申请日：2022-03-25
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Miquel Boleda Busquets , Jorge Castano Aspas , Albert Crespi Serrano , Tuomo Eljas Kaikkonen , David Butinya Teixido
CPC classification number: B41J2/18 , B41J2/17546 , B41J2/17566 , B41J2002/17589
Abstract: Certain examples relate to mixing and/or supply cartridges for printing apparatus. One example implementation includes a reservoir to receive printing material from a printing apparatus and to return the received printing material to the printing apparatus. A storage medium stores a reservoir printing material level parameter indicative of the amount of printing material in the reservoir; a recirculation cycle counter indicative of the number of recirculation events experienced by the cartridge; a maximum recirculation cycle parameter indicative of the maximum number of recirculation events that may be experienced by the cartridge.
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公开(公告)号：US20240234045A1
公开(公告)日：2024-07-11
申请号：US18563826
申请日：2021-05-28
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Huaichung Hsu , Wei-min Liang
Abstract: This application is directed to system, devices, and methods of keyboard key switches that facilitate electrical connections to specialized keycaps. In some embodiments, a serial connection (e.g., USB or any serial protocol) can be created and maintained between a key switch of the inventive subject matter and a specialized keycap that couples with a top portion of the key switch's plunger. Key switches of the inventive subject matter incorporate spring probes to create electrical connections between a printed circuit board disposed below the key switches and the top portions of the key switches' plungers. Thus, different regions of a key switch's plunger can feature different conductive regions, which facilitates creating electrical connections between a PCB and a specialized keycap.
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公开(公告)号：US20240227306A9
公开(公告)日：2024-07-11
申请号：US18279128
申请日：2021-03-09
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Jacob WRIGHT , Maria Fabiola LEYVA MENDIVIL , Sunil KOTHARI , Lei CHEN , Kyle WYCOFF , Jun ZENG
IPC: B29C64/393 , B29C64/153
CPC classification number: B29C64/393 , B29C64/153 , B33Y50/02
Abstract: A computing device comprising a controller is disclosed herein. The controller is to access print data of a virtual build volume including a 3D object to be generated by a 3D printer; modify the print data to include a 3D structure at a location within the build volume to encapsulate an amount of build material; receive powder degradation data corresponding to the powder degradation of the encapsulated amount of build material; and calibrate an additive manufacturing parameter based on the powder degradation data.
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公开(公告)号：US20240226878A1
公开(公告)日：2024-07-11
申请号：US18559496
申请日：2021-05-07
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Michael W. Cumbie , Viktor Shkolnikov , Brian J. Keefe
CPC classification number: B01L3/502707 , B01L7/52 , B01L2200/0684 , B01L2300/048 , B01L2300/0838
Abstract: An example overfill-tolerant microfluidic structure can include an inlet microfluidic channel. A sample chamber can be connected to the inlet microfluidic channel to receive liquid from the inlet microfluidic channel. A gas-permeable liquid barrier can be connected to the sample chamber and positioned to allow gas to flow out of the sample chamber. An overflow chamber can be connected to the inlet microfluidic channel. A capillary break can be positioned between the inlet microfluidic channel and the overflow chamber. The capillary break can include a narrowed opening with a smaller width than a width of the inlet microfluidic channel. In some examples, the gas-permeable liquid barrier can allow gas to flow out of the sample chamber at a pressure lower than the break pressure, and prevent liquid from flowing out of the sample chamber at the break pressure.
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Patent Agency Ranking
公开(公告)号：US12031915B2
公开(公告)日：2024-07-09
申请号：US17417533
申请日：2019-04-30
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Alexander Govyadinov , Brett E. Dahlgren , Brian John Keefe
IPC: G01N21/64
CPC classification number: G01N21/6486 , G01N21/6454 , G01N2021/6421
Abstract: An example device includes an array of sensor modules. A sensor module includes a body to be positioned in alignment with a planar target, a light source coupled to the body to emit light to the planar target along a source optical path, and a plurality of light sensors coupled to the body. Each light sensor is to sense a different wavelength of light received from the planar target along a sensor optical path. The sensor optical path is different from the source optical path. The bodies of the array of sensor modules are arranged in a planar tiling pattern with respect to a longitudinal axis of the planar target.
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公开(公告)号：US20240220025A1
公开(公告)日：2024-07-04
申请号：US18557376
申请日：2021-04-30
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Joseph Nouri , Peter Christian Peterson , Mark Lessman
IPC: G06F3/01
Abstract: A computing device receives a notification from a tracking device that the tracking device has entered a gripped state in which a user has securely gripped the tracking device with a hand of the user. The computing device responsively receives orientation data from the tracking device indicative of an orientation of the tracking device in a tracking device space. The computing device determines an orientation of the hand of the user in a hand tracking space from captured image data of the hand of the user and the tracking device. The computing device generates a transformation matrix to anchor the tracking device space to the hand tracking space. The tracking device resultantly enters an anchored state.
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公开(公告)号：US20240216916A1
公开(公告)日：2024-07-04
申请号：US18557860
申请日：2021-04-30
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： David Olsen , Michael Cumbie , Viktor Shkolnikov
CPC classification number: B01L3/502723 , C12N15/1013 , C12Q1/686 , B01L2200/16 , B01L2300/041 , B01L2300/0816 , B01L2400/0406 , B01L2400/084
Abstract: A microfluidic device is described. The device comprises a flow channel; and at least one reaction chamber. The at least one reaction chamber comprises a chamber inlet connecting the at least one reaction chamber to the flow channel, a first region adjacent the chamber inlet, a second region spaced from the chamber inlet by the first region, a vent channel and a reaction reagent disposed on at least one inner surface of the second region. Also described is a PCR apparatus and a method of performing PCR.
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公开(公告)号：US12025803B2
公开(公告)日：2024-07-02
申请号：US17414338
申请日：2019-07-31
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Nathan Nuber , Robert P. Martin , Joseph Nouri , Louis M. Gaiot , Owen Richard , Eric Bokides
IPC: G02B27/01
CPC classification number: G02B27/0172 , G02B2027/011 , G02B2027/014
Abstract: In an example implementation, a head-mounted display (HMD) device includes a display, a variable lens receptacle to receive an interchangeable lens, a sensor to retrieve lens information from the lens, and a controller to obtain images that are predistorted according to the lens information, wherein the controller is to display the predistorted images on the display.
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公开(公告)号：US12023738B2
公开(公告)日：2024-07-02
申请号：US17866435
申请日：2022-07-15
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Mohammed S. Shaarawi , James McKinnell , David A. Champion , Vladek P. Kasperchik
IPC: B33Y30/00 , B22F1/05 , B22F3/10 , B22F5/00 , B22F10/00 , B22F10/14 , B22F10/32 , B22F10/43 , B22F10/47 , B22F10/64 , B22F10/68 , B22F10/85 , B29C64/165 , B29C64/393 , B33Y10/00 , B33Y40/00 , B33Y40/20 , B33Y50/02 , B33Y70/00 , B33Y70/10 , B33Y80/00 , C09D11/033 , C09D11/38 , B29K505/00
CPC classification number: B22F5/003 , B22F1/05 , B22F3/1021 , B22F10/00 , B22F10/14 , B22F10/32 , B22F10/43 , B22F10/47 , B22F10/64 , B22F10/68 , B22F10/85 , B29C64/165 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B33Y40/20 , B33Y50/02 , B33Y70/00 , B33Y70/10 , B33Y80/00 , C09D11/033 , C09D11/38 , B22F2201/013 , B22F2302/10 , B22F2302/45 , B22F2998/10 , B22F2999/00 , B29K2505/00 , B22F2998/10 , B22F10/14 , B22F3/1017 , B22F2201/013 , B22F5/003
Abstract: An apparatus is disclosed to create a breakaway junction for 3D printed parts. Powder is spread along a target zone, such as a build bed. A liquid functional agent is selectively dispensed upon the powder to form a 3D object, a supporting part, and the breakaway junction between them.
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