Seiji Sakamoto
27Patents
10h-index
36Co-inventors
75Inventor score
Filing activity: Jul 16, 1976 → Oct 16, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6830660B1 | Method for producing metallurgical coke | Chemistry; Metallurgy | 37 | Expired |
| US4320207A | Polyester film containing fine powder of crosslinked polymer | Chemistry; Metallurgy | 28 | Expired |
| US5006589A | Polyester film for magnetic recording media | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5096773A | Biaxially oriented polyester film | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5164439A | Polyester film for magnetic recording media | Chemistry; Metallurgy | 18 | Expired |
| US4732799A | Polyethylene naphthalate film | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5023291A | Polyester composition | Chemistry; Metallurgy | 12 | Expired |
| US4096109A | Polyester films useful as magnetic tapes | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4767657A | Polyester films suitable for use in magnetic tapes | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4101523A | Polyester films | Chemistry; Metallurgy | 10 | Expired |
| US5401558A | Biaxially oriented polyester film for capacitor dielectric | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5670236A | Biaxially oriented polyester film for magnetic recording medium | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5061571A | Biaxially oriented polyester film | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4840830A | Polyester film for magnetic recording tape | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5364684A | Magnetic recording medium comprising a polyethylene-2,6-naphthalate multilayered film coated on both sides by a coating layer | Emerging Cross-Sectional Technologies | 6 | Expired |
| USD598158S1 | Tubular lamp | General | 6 | Expired |
| US4729915A | Electrical insulating material | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4886705A | Polyphenylene sulfide film | Emerging Cross-Sectional Technologies | 4 | Expired |
| USD586495S1 | Tubular lamp | General | 4 | Expired |
| US5863641A | Polyester film for sublimation type thermal transfer printing | Emerging Cross-Sectional Technologies | 4 | Expired |
| USD586941S1 | Tubular lamp | General | 3 | Expired |
| US5324574A | Biaxially stretched polyester film | Emerging Cross-Sectional Technologies | 3 | Expired |
| USD586940S1 | Tubular lamp | General | 2 | Expired |
| US10080713B2 | Surface-treated spherical calcium carbonate particles for cosmetics and method for producing same | Chemistry; Metallurgy | 2 | Active |
| USD586494S1 | Tubular lamp | General | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.