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Class Information
Number: 257/421
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Responsive to non-electrical signal (e.g., chemical, stress, light, or magnetic field sensors) > Magnetic field
Description: Subject matter wherein the non-electrical signal to which the active solid-state device responds, is a magnetic field.










Sub-classes under this class:

Class Number Class Name Patents
257/423 Bipolar transistor magnetic field sensor (e.g., lateral bipolar transistor) 121
257/426 Differential output (e.g., with offset adjustment means or with means to reduce temperature sensitivity) 72
257/425 Magnetic field detector using compound semiconductor material (e.g., gaas, insb, etc.) 127
257/427 Magnetic field sensor in integrated circuit (e.g., in bipolar transistor integrated circuit) 291
257/424 Sensor with region of high carrier recombination (e.g., magnetodiode with carriers deflected to recombination region by magnetic field) 70
257/422 With magnetic field directing means (e.g., shield, pole piece, etc.) 329


Patents under this class:

Patent Number Title Of Patent Date Issued
8711600 High density molecular memory storage with read and write capabilities Apr. 29, 2014
8710605 Magnetic memory and method of manufacturing the same Apr. 29, 2014
8710604 Magnetoresistive element and manufacturing method of the same Apr. 29, 2014
8710603 Engineered magnetic layer with improved perpendicular anisotropy using glassing agents for spintronic applications Apr. 29, 2014
8710602 Method and system for providing magnetic junctions having improved characteristics Apr. 29, 2014
8709617 Magnetic memory element, driving method for same, and nonvolatile storage device Apr. 29, 2014
8705212 Magnetic element with enhanced coupling portion Apr. 22, 2014
8704320 Strain induced reduction of switching current in spin-transfer torque switching devices Apr. 22, 2014
8704319 Method and system for providing magnetic layers having insertion layers for use in spin transfer torque memories Apr. 22, 2014
8693142 Magnetic recording assisted by spin torque oscillator with a radio frequency current bias Apr. 8, 2014
8692342 Magnetic memory devices having a uniform perpendicular nonmagnetic metal rich anisotropy enhanced pattern Apr. 8, 2014
8692341 Storage element and storage device Apr. 8, 2014
8691596 Magnetoresistive element and method of manufacturing the same Apr. 8, 2014
8686525 Magnetic sensor and magnetic memory Apr. 1, 2014
8686524 Magnetic stack with oxide to reduce switching current Apr. 1, 2014
8686523 Magnetoresistive device Apr. 1, 2014
8686522 Semiconductor trench inductors and transformers Apr. 1, 2014
8686521 Magnetoresistive element and magnetic memory Apr. 1, 2014
8686520 Spin-torque magnetoresistive structures Apr. 1, 2014
8680693 OLED having stacked organic light-emitting units Mar. 25, 2014
8680633 Magnetoresistive element and magnetic memory Mar. 25, 2014
8680632 Magnetoresistive element and magnetic memory Mar. 25, 2014
8680592 Method of forming a magnetic tunnel junction device Mar. 25, 2014
8679653 Spin-valve recording element and storage device Mar. 25, 2014
8674466 Magnetic random access memory with selective toggle memory cells Mar. 18, 2014
8674465 MRAM device and integration techniques compatible with logic integration Mar. 18, 2014
8670268 Magnetoresistive element and magnetic memory using the same Mar. 11, 2014
8669628 Magnetoresistive element and magnetic memory using the same Mar. 11, 2014
8669122 Method for producing a magnetic tunnel junction and magnetic tunnel junction thus obtained Mar. 11, 2014
8659939 Spin-torque memory with unidirectional write scheme Feb. 25, 2014
8659103 Magnetoresistive element and magnetic memory using the same Feb. 25, 2014
8659102 Nonvolatile magnetic memory device Feb. 25, 2014
8653615 MR device with synthetic free layer structure Feb. 18, 2014
8653614 Semiconductor memory device and method for manufacturing the same Feb. 18, 2014
8648434 Magnetic memory devices Feb. 11, 2014
8648401 Domain wall assisted spin torque transfer magnetresistive random access memory structure Feb. 11, 2014
8644063 Fabrication and integration of devices with top and bottom electrodes including magnetic tunnel junctions Feb. 4, 2014
8643130 Magnetic stack and memory cell comprising such a stack Feb. 4, 2014
8637947 Memory element and memory apparatus Jan. 28, 2014
8637946 Spin MOSFET and reconfigurable logic circuit Jan. 28, 2014
8633568 Multi-chip package with improved signal transmission Jan. 21, 2014
8633555 Magnetic sensor Jan. 21, 2014
8629729 Aggregated spin-torque nano-oscillators Jan. 14, 2014
8629519 Tunneling magnetoresistance sensor Jan. 14, 2014
8629518 Sacrifice layer structure and method for magnetic tunnel junction (MTJ) etching process Jan. 14, 2014
8625327 Magnetic random access memory and initializing method for the same Jan. 7, 2014
8624376 Package-on-package structure without through assembly vias Jan. 7, 2014
8623452 Magnetic random access memory (MRAM) with enhanced magnetic stiffness and method of making same Jan. 7, 2014
8619467 High GMR structure with low drive fields Dec. 31, 2013
8618590 Spin transistor, integrated circuit, and magnetic memory Dec. 31, 2013











 
 
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