Inventor · Torrance, CA, US

Yanping Ma

15Patents

6h-index

25Co-inventors

66Inventor score

Filing activity: May 3, 1993 → Sep 20, 2022

Most-cited inventions

Patent	Title	Area	Cited by	Status
US5558961A	Secondary cell with orthorhombic alkali metal/manganese oxide phase active cathode material	Emerging Cross-Sectional Technologies	72	Expired
US5443601A	Method for intercalating alkali metal ions into carbon electrodes	Emerging Cross-Sectional Technologies	45	Expired
US6563197B1	MOSgated device termination with guard rings under field plate	Electricity	7	Expired
US9214461B2	GaN transistors with polysilicon layers for creating additional components	Electricity	7	Active
US9837438B2	GaN transistors with polysilicon layers used for creating additional components	Electricity	6	Active
US9171911B2	Isolation structure in gallium nitride devices and integrated circuits	Electricity	6	Active
US8082263B2	Method, apparatus and system for multimedia model retrieval	Physics	3	Active
US8174051B2	III-nitride power device	Electricity	3	Active
US10312260B2	GaN transistors with polysilicon layers used for creating additional components	Electricity	3	Active
US9214399B2	Integrated circuit with matching threshold voltages and method for making same	Electricity	1	Active
USD1049526S1	Cleaning machine	General	1	Active
US5916710A	Sodium cobalt bronze batteries and a method for making same	Emerging Cross-Sectional Technologies	1	Expired
US9214528B2	Method to fabricate self-aligned isolation in gallium nitride devices and integrated circuits	Electricity	0	Active
US9331191B2	GaN device with reduced output capacitance and process for making same	Electricity	0	Active
US9583480B2	Integrated circuit with matching threshold voltages and method for making same	Electricity	0	Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.