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公开(公告)号：US20170100862A1
公开(公告)日：2017-04-13
申请号：US15192139
申请日：2016-06-24
IPC分类号： B29C45/00 , H03K19/003 , B29B13/02 , B29B13/08 , B29C45/18
CPC分类号： B29C45/0001 , B29B13/02 , B29B13/08 , B29C45/18 , B29K2101/10 , B29K2105/16 , B29K2505/12 , B29L2031/34 , G09C1/00 , H03K19/003 , H04L9/3278
摘要： A physical unclonable function formed by an injection molding machine is disclosed. A highly random distribution of magnetic particles is created by magnetizing magnetizable particles before feeding the particles into the injection molding machine due to turbulence within the injection molding machine. Plastic is also fed into the injection molding machine to suspend the particles. Other devices and processes are disclosed.
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公开(公告)号：US20130129933A1
公开(公告)日：2013-05-23
申请号：US13717933
申请日：2012-12-18
发明人： Bhaskar Gopalanarayanan , Kelly Ann Killeen , Johnny Dale Massie, II , Ronald Lloyd Roe , James Joseph Semler
IPC分类号： B05D5/12
CPC分类号： B05D5/12 , G03G15/0818
摘要： Developer roll having a conductive or semi-conductive soft rubber core and a coating deposited in the soft rubber core wherein the coating has a conductive agent. The outer surface of the soft rubber core is modified before the coating is deposited onto the outer surface of the soft rubber core. Methods for making the same.
摘要翻译： 显影辊具有导电或半导电软橡胶芯和沉积在软橡胶芯中的涂层，其中涂层具有导电剂。 软橡胶芯的外表面在将涂层沉积到软橡胶芯的外表面之前被改性。 制作相同的方法
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公开(公告)号：US20190392970A1
公开(公告)日：2019-12-26
申请号：US16552841
申请日：2019-08-27
发明人： James Ronald Booth , Roger Steven Cannon , Gary Allen Denton , James Paul Drummond , Kelly Ann Killeen
摘要： A method of making a physical unclonable function (PUF) having magnetic and non-magnetic particles is disclosed. Measuring both magnetic field and image view makes the PUF difficult to counterfeit. PUF may be incorporated into a user-replaceable supply item for an imaging device. A PUF reader may be incorporated into an imaging device to read the PUF. Other methods are disclosed.
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公开(公告)号：US09917699B2
公开(公告)日：2018-03-13
申请号：US14879357
申请日：2015-10-09
发明人： James Ronald Booth , Roger Steven Cannon , Gary Allen Denton , James Paul Drummond , Kelly Ann Killeen
CPC分类号： H04L9/3278 , G03G15/00 , G09C5/00 , H04L2209/34 , H04N1/0084 , H04N1/00856
摘要： A physical unclonable function (PUF) imaged through two faces is disclosed. The PUF is difficult to counterfeit because the view through both faces must be duplicated for a successful counterfeit. PUF may be incorporated into a user-replaceable supply item for an imaging device. A PUF reader may be incorporated into an imaging device to read the PUF. Other systems and methods are disclosed.
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5.发明申请公开(公告)号：US20200298468A1
公开(公告)日：2020-09-24
申请号：US16820995
申请日：2020-03-17
IPC分类号： B29C64/118 , B29C64/393 , B29C31/04 , H04L9/32
摘要： Disclosed is a process of adding PUF materials with non-repeatable random order to the additive manufacturing process of a product. Preferably, these materials have magnetic characteristics. These characteristics can be detected by a sensor which reads the random pattern and provides a unique signature for the item produced.
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公开(公告)号：US10566296B2
公开(公告)日：2020-02-18
申请号：US15809081
申请日：2017-11-10
发明人： Roger Steven Cannon , William Corbett , Gary A. Denton , James Paul Drummond , Kelly Ann Killeen , Carl E. Sullivan
摘要： In the invention described, magnetic field characteristics of randomly placed magnetized particles are exploited by using the magnetic field fluctuations produced by the particles as measured by a sensor. The magnetized particles generate a complex magnetic field near the surface of an integrated circuit chip on a bank card or identification card that can be used as a “fingerprint.” The positioning and orientation of the magnetized particles is an uncontrolled process, and thus the interaction between the sensor and the particles is complex. The randomness of the magnetic field magnitude and direction near the surface of the material containing the magnetic particles can be used to obtain a unique identifier for an item such as an integrated circuit chip on a bank card or identification card carrying the PUF.
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公开(公告)号：US20190139909A1
公开(公告)日：2019-05-09
申请号：US15808573
申请日：2017-11-09
摘要： In the invention described, magnetic field characteristics of randomly placed magnetized particles are exploited by using the magnetic field fluctuations produced by the particles as measured by a sensor. The magnetized particles generate a complex magnetic field near the surface of an integrated circuit chip that can be used as a “fingerprint.” The positioning and orientation of the magnetized particles is an uncontrolled process, and thus the interaction between the sensor and the particles is complex. The randomness of the magnetic field magnitude and direction near the surface of the material containing the magnetic particles can be used to obtain a unique identifier for an item such as an integrated circuit chip carrying the PUF.
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8.发明申请公开(公告)号：US20170103834A1
公开(公告)日：2017-04-13
申请号：US14879311
申请日：2015-10-09
发明人： James Ronald Booth , Roger Steven Cannon , Gary Allen Denton , James Paul Drummond , Kelly Ann Killeen
CPC分类号： H01F1/22 , B22F1/0003 , B22F1/0059 , B22F2202/05 , B22F2301/15 , B22F2301/35 , B22F2301/45 , B22F2304/10 , B22F2304/15 , G06K19/06187 , G06K2019/06253 , G09C5/00 , G11C11/02 , H01F1/053 , H01F1/083 , H04L9/0866 , H04L9/3278 , Y04S40/24
摘要： A method of making a physical unclonable function (PUF) having magnetic and non-magnetic particles is disclosed. Measuring both magnetic field and image view makes the PUF difficult to counterfeit. PUF may be incorporated into a user-replaceable supply item for an imaging device. A PUF reader may be incorporated into an imaging device to read the PUF. Other methods are disclosed.
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公开(公告)号：US20170102668A1
公开(公告)日：2017-04-13
申请号：US15192355
申请日：2016-06-24
IPC分类号： G03G15/00
CPC分类号： G03G21/1676 , G09C1/00 , H04L9/3278
摘要： A physical unclonable function (PUF) located on a supply item for an imaging device is disclosed. The PUF is advantageously located on the back side of the supply item opposite a handle. This configuration enables a PUF reader to be located at the end of the insertion path of the supply item where it is protected from damage. Other devices are disclosed.
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10.发明申请Elastomeric Roll for an Electrophotographic Image Forming Device having Compressible Hollow Microparticles Defining a Surface Texture of the Roll 审中-公开用于具有可压缩中空微粒的电子照相成像装置的弹性辊定义辊的表面纹理公开(公告)号：US20150064403A1
公开(公告)日：2015-03-05
申请号：US14010720
申请日：2013-08-27
CPC分类号： B29C70/66 , B29C35/02 , B29C44/1271 , B29C44/1285 , B29D99/0035 , B29K2021/00 , B29K2021/003 , B29K2101/12 , B29K2105/165 , B29K2507/04 , B29L2031/324 , G03G15/0233 , G03G15/0808 , G03G15/0818 , Y10T428/24372
摘要： A roll for use in an electrophotographic image forming device according to one example embodiment includes an elastomeric core having hollow microparticles dispersed within the core. The hollow microparticles are compressive and resiliently recoverable after receiving an applied force. Portions of at least some of the hollow microparticles extend beyond an outer circumference of the core and provide a surface texture to the core.
摘要翻译： 根据一个示例性实施例的用于电子照相图像形成装置的卷包括具有分散在芯内的中空微粒的弹性体芯。 中空微粒在接受施加的力之后是压缩的并且可弹性地恢复。 至少一些中空微粒的部分延伸超过芯的外周，并且向芯提供表面纹理。
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