Ryuichi Nagase
15Patents
5h-index
18Co-inventors
63Inventor score
Filing activity: Feb 24, 1989 → Feb 11, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5026614A | Magnetic recording medium with a zinc cobalt oxide non-magnetic substrate containing nickel or manganese | Emerging Cross-Sectional Technologies | 15 | Expired |
| US8748041B2 | Positive electrode active material for lithium ion battery | Emerging Cross-Sectional Technologies | 15 | Active |
| US8993160B2 | Positive electrode for lithium ion battery, method for producing said positive electrode, and lithium ion battery | Emerging Cross-Sectional Technologies | 14 | Active |
| US6497854B2 | Cathode material for a lithium secondary battery and method for manufacturing same | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5231555A | Magnetic head comprising a laminated magnetic layer structure between non magnetic rock salt structure oxide substrates | Emerging Cross-Sectional Technologies | 5 | Expired |
| US8114309B2 | Lithium-manganese composite oxides for lithium ion battery and process for preparing same | Emerging Cross-Sectional Technologies | 4 | Active |
| US8062486B2 | Lithium-containing transition metal oxide target, process for producing the same and lithium ion thin film secondary battery | Emerging Cross-Sectional Technologies | 3 | Active |
| US5242865A | Non-magnetic substrate of magnetic head | Emerging Cross-Sectional Technologies | 2 | Expired |
| US9263732B2 | Positive electrode active material for lithium-ion battery, positive electrode for a lithium-ion battery, lithium-ion battery using same, and precursor to a positive electrode active material for a lithium-ion battery | Emerging Cross-Sectional Technologies | 2 | Active |
| US10288584B2 | Method for locating machining position in repair material, and repairing method | Physics | 2 | Active |
| US9809298B2 | Drainage system | Performing Operations; Transporting | 2 | Active |
| US5089196A | Non-magnetic substrate of magnetic head, magnetic head and method for producing substrate | Emerging Cross-Sectional Technologies | 2 | Expired |
| US9059465B2 | Positive electrode active material for lithium ion battery, positive electrode for secondary battery, and lithium ion battery | Emerging Cross-Sectional Technologies | 1 | Active |
| US9136533B2 | Lithium nickel manganese cobalt composite oxide and lithium rechargeable battery | Emerging Cross-Sectional Technologies | 1 | Active |
| US10940937B2 | Aircraft reinforcing structure | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.