Koji Obayashi
11Patents
2h-index
32Co-inventors
54Inventor score
Filing activity: Apr 12, 2000 → Mar 16, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6332339A | Vacuum degassing method for molten glass flow | Chemistry; Metallurgy | 46 | Expired |
| US6536238B2 | Vacuum degassing method for molten glass flow | Chemistry; Metallurgy | 42 | Expired |
| US8733199B2 | Gears and its process of manufacture | Emerging Cross-Sectional Technologies | 2 | Active |
| US10889870B2 | Steel component, gear component, and producing method for steel component | Emerging Cross-Sectional Technologies | 2 | Active |
| US7380416B2 | Conduit for molten glass, connecting conduit for molten glass and vacuum degassing apparatus | Chemistry; Metallurgy | 2 | Expired |
| US9388476B2 | Steel gear and manufacturing method for the same | Emerging Cross-Sectional Technologies | 1 | Active |
| US9328811B2 | Drive plate and manufacturing method for the same | Emerging Cross-Sectional Technologies | 1 | Active |
| US9034116B2 | Composite steel part and manufacturing method for the same | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9441723B2 | Steel gear and manufacturing method for the same | Emerging Cross-Sectional Technologies | 0 | Active |
| US12378620B2 | Quenching method | Emerging Cross-Sectional Technologies | 0 | Active |
| US8956467B2 | Composite steel part and manufacturing method for the same | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.