Shigeyoshi Matubara
17Patents
11h-index
10Co-inventors
61Inventor score
Filing activity: Oct 9, 1990 → May 7, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5281376A | Method for producing polypropylene resin article having skin material lined with foamed layer | Performing Operations; Transporting | 37 | Expired |
| US5352397A | Process for producing multilayer molded article including folding of a skin material over a back of a resin material | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5034076A | Method for press molding thermoplastic resins | Performing Operations; Transporting | 29 | Expired |
| US5252269A | Method for molding polypropylene resin | Performing Operations; Transporting | 27 | Expired |
| US5275776A | Method for producing molded article of fiber-reinforced thermoplastic resin | Performing Operations; Transporting | 25 | Expired |
| US5178708A | Method for producing multi-layer molded article | Performing Operations; Transporting | 24 | Expired |
| US5543094A | Method of forming a multilayer molded article | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5506029A | Fiber reinforced thermoplastic resin shaped article | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5356588A | Method for forming a fiber reinforced thermoplastic resin shaped article | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5424020A | Method for producing molded article of fiber-reinforced thermoplastic resin | Performing Operations; Transporting | 17 | Expired |
| US5820813A | Method for producing multilayer molded article | Performing Operations; Transporting | 13 | Expired |
| US5336463A | Mold for press molding and process for press molding of thermoplastic resin using the same | Performing Operations; Transporting | 10 | Expired |
| US5431366A | See-through concrete form | Fixed Constructions | 9 | Expired |
| US5672403A | Multilayer molded article | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5304579A | Method for molding polypropylene resin | Performing Operations; Transporting | 6 | Expired |
| US6203744A | Method for producing molded article of thermoplastic resin | Performing Operations; Transporting | 5 | Expired |
| US5562878A | Process for producing skin material laminated hollow molded article using fluid ejection pin | Performing Operations; Transporting | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.