Hiroshi Ejiri
9Patents
6h-index
13Co-inventors
60Inventor score
Filing activity: Nov 19, 1979 → Aug 15, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5629062A | Fiber reinforced plastic pipe and process for producing the same | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5792577A | Negative electrode material for use in lithium-ion secondary battery and process for producing the same | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4354306A | Machine tool having replaceable gang heads | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6022518A | Surface graphitized carbon material and process for producing the same | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5303465A | Method of assembling piston ring and method of assembling set oil ring and apparatus for assembling set oil ring | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5356574A | Process for producing pitch based activated carbon fibers and carbon fibers | Chemistry; Metallurgy | 12 | Expired |
| US6303095A | Milled carbon fiber and process for producing the same | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4934047A | Assembly machine | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6528036B2 | Milled carbon fiber and process for producing the same | Textiles; Paper | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.