Kotaro Takita
39Patents
11h-index
15Co-inventors
72Inventor score
Filing activity: Sep 20, 1990 → Jul 25, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5051183A | Microporous polyolefin membrane and method of producing same | Emerging Cross-Sectional Technologies | 74 | Expired |
| US5922492A | Microporous polyolefin battery separator | Emerging Cross-Sectional Technologies | 54 | Expired |
| US6245272A | Polyolefin microporous film and method for preparing the same | Emerging Cross-Sectional Technologies | 45 | Expired |
| US6566012B1 | Polyolefin microporous film and method for preparing the same | Emerging Cross-Sectional Technologies | 40 | Expired |
| US6153133A | Method of producing highly permeable microporous polyolefin membrane | Performing Operations; Transporting | 33 | Expired |
| US6235432A | Thin non-protonic electrolytic film, immobilized liquid-film conductor, and polymer cell | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5830554A | Method of producing of microporous polyolefin membrane | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5786396A | Method of producing microporous polyolefin membrane | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6666969B1 | Microporous polyolefin film and process for producing the same | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5853633A | Method of producing microporous thermoplastic resin membrane | Emerging Cross-Sectional Technologies | 25 | Expired |
| US6824865B1 | Microporous polyolefin film and process for producing the same | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7479243B2 | Microporous polyolefin membrane, and method of producing the same | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5741848A | Method of manufacturing polyolefin solutions | Chemistry; Metallurgy | 7 | Expired |
| US7815825B2 | Microporous polyolefin membrane, and method of producing the same | Emerging Cross-Sectional Technologies | 6 | Active |
| US7988895B2 | Production method of microporous polyethylene membrane and battery separator | Emerging Cross-Sectional Technologies | 5 | Active |
| US8932748B2 | Multi-layer, microporous polyolefin membrane, its production method, and battery separator | Emerging Cross-Sectional Technologies | 4 | Active |
| US7985497B2 | Multi-layer, microporous polyethylene membrane, its production method, and battery separator | Emerging Cross-Sectional Technologies | 4 | Active |
| US8709640B2 | Multi-layer, microporous polyolefin membrane, its production method, battery separator and battery | Emerging Cross-Sectional Technologies | 3 | Active |
| US8748028B2 | Multi-layer microporous membrane, battery separator and battery | Emerging Cross-Sectional Technologies | 3 | Active |
| US8778525B2 | Multi-layer, microporous polyethylene membrane, battery separator formed thereby and battery | Emerging Cross-Sectional Technologies | 3 | Active |
| US8906539B2 | Polyolefin composition, its production method, and a battery separator made therefrom | Chemistry; Metallurgy | 3 | Active |
| US8802273B2 | Microporous polyethylene membrane, its production method, and battery separator | Emerging Cross-Sectional Technologies | 2 | Active |
| US8715849B2 | Microporous polymer membrane | Emerging Cross-Sectional Technologies | 2 | Active |
| US8770824B2 | Extruder and process for preparing a mixture of polymer and diluent | Performing Operations; Transporting | 2 | Active |
| US6218053A | Thin aprotic electrolyte films, immobilized liquid membrane conductors, and batteries | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.