NIPPON GASKET CO., LTD.
52Patents
10Active
52Granted
35Portfolio score
Filing activity: Mar 24, 1989 → Nov 6, 2013 · 5 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5584490A | Metal gasket with coolant contact areas | Mechanical Engineering; Lighting; Heating | 61 | Expired |
| US5286039A | Metal gasket | Mechanical Engineering; Lighting; Heating | 54 | Expired |
| US5087058A | Metal gasket for manifold | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US5294135A | Metal gasket and production method thereof | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5310196A | Metallic gasket and method of manufacturing the same | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US6431554B1 | Metal gaskets | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5609345A | Metal gasket with stepped intermediate plate | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US5360219A | Exhaust manifold gasket | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US6283480A | Metal gasket | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US5348315A | Metallic gasket | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US6027124A | Metal gasket | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US6076833A | Metal gasket | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US6575473B2 | Metallic gasket | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US6336639B1 | Metal gaskets | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US6056296A | Metal gasket having seal structure for three-surface combining portion | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US5791659A | Metal gasket | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US5895056A | Metal gasket with seal members at an area between a main seal portion and a sub-seal portion | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5690343A | Metal gasket | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US6164662A | Metal gasket | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US6422573B1 | Monolayer metal gaskets | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6502830B2 | Metallic gasket | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6206381A | Multi-layer metal gasket | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5544901A | Metal gasket for chain case-carrying engines | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5626348A | Metal gasket | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5281464A | Structure for finding wrong assemblage of metallic laminate type gasket | Emerging Cross-Sectional Technologies | 11 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.