YAMAUCHI CORP.
51Patents
23Active
51Granted
44Portfolio score
Filing activity: Aug 15, 1990 → Sep 30, 2019 · 10 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5091027A | Process for producing hard roll | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5753165A | Process for producing a hard roll | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5257966A | Press roll for paper machines | Textiles; Paper | 19 | Expired |
| US7540942B2 | Press belt and shoe press roll | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7501044B2 | Paper making elastic belt | Emerging Cross-Sectional Technologies | 11 | Active |
| US5836860A | Resin roll for calendering magnetic recording medium and manufacturing method therefor | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6030328A | Resin roll for calendering magnetic recording medium and manufacturing method therefor | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5896240A | Pinch roller and pinch roller apparatus having a self-alignment function | Performing Operations; Transporting | 8 | Expired |
| US5507899A | Method of manufacturing an endless belt for a dewatering press | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5934538A | Pinch roller and pinch roller apparatus | Physics | 7 | Expired |
| US7243359B2 | Method and apparatus for dynamically absorbing vibration | Physics | 7 | Expired |
| US6514888B1 | Cushioning material for forming press | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6391460B1 | Rubber for hot press cushioning pad, manufacturing method thereof, hot press cushioning pad and method of manufacturing printed circuit board | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7897527B2 | Cushioning pad for hot press | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6337112B1 | Endless belt for dewatering press | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6489402B2 | Vibration insulator from partially crosslinked butyl rubber | Chemistry; Metallurgy | 4 | Expired |
| US7384517B2 | Press belt and manufacturing method thereof | Emerging Cross-Sectional Technologies | 4 | Active |
| US6921461B2 | Elastic belt for papermaking | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7097741B2 | Belt for shoe press | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6319624A | Apparatus for calendering magnetic recording medium | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7163202B2 | Sheet feeding device and image forming apparatus comprising the sheet feeding device | Performing Operations; Transporting | 3 | Expired |
| US6983540B2 | Method for manufacturing elastic cylindrical body and method for manufacturing elastic roll | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7090747B2 | Belt for papermarking and process for producing papermaking belt | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7135137B2 | Process for producing resin roll | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7326321B2 | Shoe press belts and shoe press device using the belts | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.