Yoshitaka Sumi
6Patents
4h-index
9Co-inventors
39Inventor score
Filing activity: May 20, 1998 → Mar 6, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6319991A | Propylene polymer blends, processes of producing the same and polypropylene resin compositions | Chemistry; Metallurgy | 48 | Expired |
| US6323286A | Polypropylene composition | Chemistry; Metallurgy | 10 | Expired |
| US6258893A | Unoriented polypropylene molding | Chemistry; Metallurgy | 8 | Expired |
| US6716921B1 | Propylene resin composition | Chemistry; Metallurgy | 5 | Expired |
| US6355736B1 | Propylene block copolymer compositions | Chemistry; Metallurgy | 4 | Expired |
| US6429262B1 | Molded polypropylene | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.