Hiroshi Chikatsune
9Patents
2h-index
11Co-inventors
37Inventor score
Filing activity: Feb 24, 2012 → Dec 18, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8991875B2 | Threaded joint for steel pipes | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US9470345B2 | Threaded joint for pipes | Chemistry; Metallurgy | 2 | Active |
| US10443765B2 | Threaded joint for pipes | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9982815B2 | Threaded joint for oil country tubular goods | Fixed Constructions | 1 | Active |
| US10295091B2 | Threaded joint for tube | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9709196B2 | Threaded joint for heavy-walled oil country tubular goods | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9657873B2 | Threaded joint for pipes | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10125554B2 | Threaded joint for oil country tubular goods | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9982491B2 | Threaded joint for oil country tubular goods | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.