Takumi Kosugi
7Patents
6h-index
12Co-inventors
60Inventor score
Filing activity: May 25, 1973 → Oct 8, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5844720A | Prism sheet | Physics | 78 | Expired |
| US5885490A | Continuous sheet having optical functions | Performing Operations; Transporting | 24 | Expired |
| US4454276A | Polyamide acid composition for preparing polyimide and process for preparing polyimide from the same | Chemistry; Metallurgy | 14 | Expired |
| US3992485A | Process for preparation of weather resistant and impact resistant resins | Chemistry; Metallurgy | 13 | Expired |
| US4014842A | Vinyl chloride resin compositions | Chemistry; Metallurgy | 10 | Expired |
| US4220734A | Impact and weather resistant composite of polyvinylchloride and acrylic modifier | Chemistry; Metallurgy | 9 | Expired |
| US4515915A | Polyamide acid composition for preparing polyimide | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.