Teruhisa Koyama
10Patents
5h-index
17Co-inventors
59Inventor score
Filing activity: May 23, 1977 → May 25, 1993
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4686257A | Polypropylene resin composition containing filler | Chemistry; Metallurgy | 22 | Expired |
| US4129557A | Process for producing copolymerized resins | Chemistry; Metallurgy | 18 | Expired |
| US4604421A | Polypropylene resin composition comprising talc having specified average diameter and particle size | Chemistry; Metallurgy | 9 | Expired |
| US4965321A | Thermoplastic copolymer | Chemistry; Metallurgy | 6 | Expired |
| US5324781A | Methacrylate resin composition | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4228266A | Process for producing copolymerized resins | Chemistry; Metallurgy | 5 | Expired |
| US5236911A | Methacrylic resin composition | Chemistry; Metallurgy | 4 | Expired |
| US5248725A | Thermoplastic resin composition | Chemistry; Metallurgy | 3 | Expired |
| US5081186A | Thermoplastic olefin resin composition | Chemistry; Metallurgy | 2 | Expired |
| US5157062A | Thermoplastic resin composition | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.