TOHO TENAX CO., LTD.
23Patents
18Active
23Granted
45Portfolio score
Filing activity: Nov 1, 2000 → Mar 29, 2018 · 7 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6812171B2 | Carbon fiber sheet and process for production thereof | Emerging Cross-Sectional Technologies | 14 | Expired |
| US7335018B2 | Flame resistant rendering heat treating device, and operation method for the device | Textiles; Paper | 10 | Expired |
| US8236273B2 | Method of producing pre-oxidation fiber and carbon fiber | Textiles; Paper | 5 | Active |
| US8034442B2 | Fiber-reinforced prepreg and composite material obtained from the same | Emerging Cross-Sectional Technologies | 3 | Active |
| US6596408B1 | Reinforcing material for wood and reinforced wood | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7638110B1 | Carbon fiber | Textiles; Paper | 2 | Active |
| US8124228B2 | Carbon fiber strand and process for producing the same | Emerging Cross-Sectional Technologies | 2 | Active |
| US10316433B2 | Carbon fiber and method for producing carbon fiber | Textiles; Paper | 2 | Active |
| US11047073B2 | Method for producing a textile unidirectional fabric | Textiles; Paper | 2 | Active |
| US10047478B2 | Prepreg and method for manufacturing same | Emerging Cross-Sectional Technologies | 1 | Active |
| US8916310B2 | Conductive sheet and production method for same | Emerging Cross-Sectional Technologies | 1 | Active |
| US9745671B2 | Carbonization method and carbon fiber production method | Textiles; Paper | 1 | Active |
| US6736856B1 | Crosslinked acrylic moisture absorbing fibers and production methods thereof | Textiles; Paper | 1 | Expired |
| US8161607B2 | Method for opening fabric, fabric, and composite material | Textiles; Paper | 1 | Active |
| US10544274B2 | Prepreg and fiber-reinforced composite material | Emerging Cross-Sectional Technologies | 1 | Active |
| US8211537B2 | Resin composition, and prepreg | Emerging Cross-Sectional Technologies | 1 | Active |
| US8129017B2 | Carbon fiber strand and process for producing the same | Emerging Cross-Sectional Technologies | 1 | Active |
| US10927226B2 | Prepreg and method for producing same | Emerging Cross-Sectional Technologies | 1 | Active |
| US10647849B2 | Epoxy resin composition, prepreg, carbon fiber-reinforced composite material, and manufacturing methods therefor | Chemistry; Metallurgy | 1 | Active |
| US10988862B2 | Method for manufacturing carbon fibers and fiber joining method | Textiles; Paper | 0 | Active |
| US7585558B2 | Carbon fiber-reinforced resin composite materials | Emerging Cross-Sectional Technologies | 0 | Expired |
| US9181640B2 | Carbon-fiber chopped strand and manufacturing method of the same | Emerging Cross-Sectional Technologies | 0 | Active |
| US10875976B2 | Heat-curable resin composition, prepreg, and method for producing fiber-reinforced composite using each of same | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.