US 12,278,045 B2
Magnet with multiple opposing poles on a surface for use with magnetically sensitive components
Afshin Partovi, Palo Alto, CA (US)
Assigned to Mojo Mobility Inc., Palo Alto, CA (US)
Filed by Mojo Mobility Inc., Palo Alto, CA (US)
Filed on Oct. 1, 2021, as Appl. No. 17/492,083.
Application 17/492,083 is a continuation of application No. 16/538,452, filed on Aug. 12, 2019, granted, now 11,283,306.
Application 16/538,452 is a continuation of application No. 14/556,760, filed on Dec. 1, 2014, granted, now 10,714,986, issued on Jul. 14, 2020.
Application 14/556,760 is a continuation of application No. 13/708,838, filed on Dec. 7, 2012, granted, now 8,901,881, issued on Dec. 2, 2014.
Application 13/708,838 is a continuation of application No. 13/158,134, filed on Jun. 10, 2011, granted, now 8,890,470, issued on Nov. 18, 2014.
Claims priority of provisional application 61/478,015, filed on Apr. 21, 2011.
Claims priority of provisional application 61/387,895, filed on Sep. 29, 2010.
Claims priority of provisional application 61/354,114, filed on Jun. 11, 2010.
Prior Publication US 2022/0021247 A1, Jan. 20, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 50/90 (2016.01); H01F 7/02 (2006.01); H02J 7/00 (2006.01); H02J 50/12 (2016.01); H02J 50/40 (2016.01); H02J 50/70 (2016.01); H02J 50/80 (2016.01); H02J 50/00 (2016.01)
CPC H01F 7/0252 (2013.01) [H02J 7/00034 (2020.01); H02J 7/0044 (2013.01); H02J 50/12 (2016.02); H02J 50/402 (2020.01); H02J 50/70 (2016.02); H02J 50/80 (2016.02); H02J 50/90 (2016.02); H01F 7/0247 (2013.01); H02J 50/005 (2020.01)] 37 Claims
OG exemplary drawing
 
1. An electronic device configured for receiving inductive power, the electronic device comprising:
a battery;
an inductive charging receiver coil for receiving inductive power to charge the battery;
a magnetically sensitive component; and
a magnetic structure embedded in the electronic device,
wherein the magnetic structure comprises one or more pieces that comprise a substantially flat first surface and a substantially flat second surface opposite the first surface,
wherein each piece includes at least two magnetic poles of opposite polarity located at each of the first and second surfaces of each piece such that each piece includes at least two pairs of opposing magnetic poles oriented to cause magnetization in two opposing directions that are each perpendicular to the first and second surfaces,
wherein the magnetic structure is configured to create a magnetic field with flux densities having substantially similar magnitudes relative to the first and second surfaces as a function of distance from the first and second surfaces, respectively, along an axis that runs perpendicular to the first and second surfaces,
wherein the magnetic field does not impair normal operation of the magnetically sensitive component,
wherein the magnetic structure is configured to create a magnetic attachment between the electronic device and a second electronic device comprising an inductive charger for providing the inductive power to charge the battery of the electronic device, and
wherein the magnetic structure is configured to align the inductive charging receiver coil of the electronic device with a charger coil in the inductive charger of the second electronic device.