Tomio Segawa
4Patents
2h-index
8Co-inventors
37Inventor score
Filing activity: Nov 21, 1978 → Oct 31, 1990
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4906747A | Process for producing a metal phthalocyanine and/or its derivative | Chemistry; Metallurgy | 3 | Expired |
| US5153314A | Process for producing a copper phthalocyanine compound | Chemistry; Metallurgy | 3 | Expired |
| US4218376A | Process for producing highly chlorinated copper phthalocyanine | Chemistry; Metallurgy | 1 | Expired |
| US4330470A | Process for producing highly chlorinated copper phthalocyanine | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.