Masao Kawashima
12Patents
8h-index
31Co-inventors
72Inventor score
Filing activity: Aug 14, 1973 → Jul 9, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4249925A | Method of manufacturing an optical fiber | Emerging Cross-Sectional Technologies | 52 | Expired |
| US3993834A | Light transmitting filament | Emerging Cross-Sectional Technologies | 49 | Expired |
| US4764067A | Screw with groove for self-lock and method and rolling flat die for manufacturing the same | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US4782688A | Rolling flat die for manufacturing a screw with groove for self-locking | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US5061744A | Resist ink composition | Electricity | 12 | Expired |
| US5077355A | Epoxy resin/imidazole/polyphenol adduct as epoxy curing agent | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5089410A | Process for the production of betacyanin pigments | Chemistry; Metallurgy | 10 | Expired |
| US3940543A | Unitary spun composite filament | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4782681A | Method of rolling a screw with groove for self-locking | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US5085995A | Method for producing saffron stigma-like tissue and method for producing useful components from saffron stigma-like tissue | Chemistry; Metallurgy | 3 | Expired |
| US9086094B2 | Cage for rolling bearing and rolling bearing | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US5084388A | Method of producing brassinosteroids | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.