Hideki Takabe
15Patents
4h-index
29Co-inventors
60Inventor score
Filing activity: Feb 5, 1998 → Oct 1, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6217676A | Steel for oil well pipe with high corrosion resistance to wet carbon dioxide and seawater, and a seamless oil well pipe | Emerging Cross-Sectional Technologies | 32 | Expired |
| US5938865A | Process for producing high-strength seamless steel pipe having excellent sulfide stress cracking resistance | Performing Operations; Transporting | 24 | Expired |
| US9322087B2 | Stainless steel for oil well, stainless steel pipe for oil well, and method of manufacturing stainless steel for oil well | Chemistry; Metallurgy | 4 | Active |
| US8608872B2 | High-strength stainless steel pipe excellent in sulfide stress cracking resistance and high-temperature carbonic-acid gas corrosion resistance | Chemistry; Metallurgy | 4 | Active |
| US9783876B2 | Stainless steel for oil wells and stainless steel pipe for oil wells | Chemistry; Metallurgy | 2 | Active |
| US10995394B2 | Steel bar for downhole member, and downhole member | Chemistry; Metallurgy | 1 | Active |
| US10246765B2 | Martensitic Cr-containing steel and oil country tubular goods | Chemistry; Metallurgy | 1 | Active |
| US9303296B2 | High-strength stainless steel for oil well and high-strength stainless steel pipe for oil well | Emerging Cross-Sectional Technologies | 0 | Active |
| US9109268B2 | Stainless steel for oil well, stainless steel pipe for oil well, and method of manufacturing stainless steel for oil well | Chemistry; Metallurgy | 0 | Active |
| US7799149B2 | Oil country tubular good for expansion in well and manufacturing method thereof | Emerging Cross-Sectional Technologies | 0 | Active |
| US8163233B2 | Martensitic stainless steel for welded structures | Chemistry; Metallurgy | 0 | Active |
| US10000832B2 | Duplex stainless steel | Chemistry; Metallurgy | 0 | Active |
| US9555496B2 | Process for producing welded joint using GMA welding and CO2 as a shielding gas | Chemistry; Metallurgy | 0 | Active |
| US12241148B2 | Alloy material and oil-well seamless pipe | Chemistry; Metallurgy | 0 | Active |
| US11891680B2 | Steel material suitable for use in sour environment | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.