Tsugihiro Doi
15Patents
5h-index
16Co-inventors
63Inventor score
Filing activity: Jun 18, 1986 → Feb 28, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5079096A | Magnetic recording medium comprising a substrate coated with a primer which is a protonic acid doped polyaniline polymer | Emerging Cross-Sectional Technologies | 27 | Expired |
| US7494728B2 | Magnetic tape and magnetic tape cartridge | Physics | 13 | Expired |
| US7253988B2 | Recording/reproducing method of magnetic tape | Physics | 12 | Active |
| US7267896B2 | Magnetic tape and magnetic tape cartridge | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7170709B2 | Recording/reproducing method of magnetic tape | Physics | 5 | Expired |
| US4828925A | Magnetic disc | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7291409B2 | Magnetic recording medium using magnetic powder having a core portion and an outer layer portion including a rare earth element and magnetic recording cassette | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7259935B2 | Magnetic tape including an intermediate layer consisting essentially of a binder | Physics | 2 | Expired |
| US7212372B2 | Magnetic tape and magnetic tape cartridge | Physics | 2 | Expired |
| US7593177B2 | Recording/reproducing method of magnetic tape | Physics | 2 | Active |
| US7309040B2 | Magnetic tape cartridge | Physics | 2 | Expired |
| US9231272B2 | Electrode and method for producing the same | Emerging Cross-Sectional Technologies | 1 | Active |
| US7445858B2 | Magnetic recording medium using magnetic powder having a core portion and an outer layer portion including a rare earth element and magnetic recording cassette | Emerging Cross-Sectional Technologies | 0 | Active |
| US7545597B2 | Recording/reproducing method of magnetic tape | Physics | 0 | Active |
| US7522381B2 | Recording medium built-in cartridge and cartridge built-in package | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.