Junji Koizumi
41Patents
12h-index
88Co-inventors
84Inventor score
Filing activity: Mar 20, 1978 → Apr 15, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4816670A | Optical measuring head | Physics | 35 | Expired |
| US5571581A | Long sandwich molded article | Chemistry; Metallurgy | 30 | Expired |
| US7208207B2 | Liner for high pressure gas container and high pressure gas container | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6227598A | Thermoplastic olefin elastomer molded article | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5082889A | Reinforced polypropylene composition | Chemistry; Metallurgy | 17 | Expired |
| US6740707B2 | Fuel system part | Chemistry; Metallurgy | 16 | Expired |
| US6740709B2 | Resin molding | Performing Operations; Transporting | 16 | Expired |
| US5252659A | Molded polypropylene-.alpha.-olefin product having low coefficient of linear expansion | Chemistry; Metallurgy | 13 | Expired |
| US5800912A | High gloss molded resin | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4707528A | Polyamide resin composition | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4327175A | Silver halide color photographic light-sensitive material | Physics | 13 | Expired |
| US5503923A | Molded sandwich article | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5641554A | Cover pad for air bag device | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4352873A | Silver halide color photographic materials | Physics | 11 | Expired |
| US5133316A | Engine cylinder head cover and molding composition used therefor | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4980407A | Polyamide resin composition | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5599865A | Molded product of a polypropylene resin | Chemistry; Metallurgy | 8 | Expired |
| US5288450A | Process for producing molded article of continuous length | Performing Operations; Transporting | 8 | Expired |
| US4567235A | Polyamide-rubber blended composition | Chemistry; Metallurgy | 8 | Expired |
| US5901615A | Steering wheel for motor vehicles | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4661563A | Polyamide-rubber blend composition | Chemistry; Metallurgy | 7 | Expired |
| US4567238A | Polyamide-rubber blended composition | Chemistry; Metallurgy | 6 | Expired |
| US4181527A | Photographic material comprising organic solvent gelling agent | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5945206A | Interior molded article for automobiles | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6280837A | Resin molded article | Emerging Cross-Sectional Technologies | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.