Kokichi Hamamoto
13Patents
3h-index
21Co-inventors
56Inventor score
Filing activity: May 24, 2006 → Apr 15, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD802104S1 | Seal | General | 22 | Active |
| US7942423B2 | Lip type seal | Mechanical Engineering; Lighting; Heating | 10 | Active |
| USD865134S1 | Seal | General | 5 | Active |
| US8573112B2 | High-pressure fuel pump and seal system for high-pressure fuel pump | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US10208861B2 | Sealing device | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9303768B2 | Valve stem seal device | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US11287042B2 | Sealing apparatus | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11460110B2 | Sealing device | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11668397B2 | Sealing structure for cover made of resin | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11261968B2 | Sealing device for differential mechanism | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US8622397B2 | Oil seal | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9133938B2 | Sealing device | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11835136B2 | Sealing device | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.