Takashi Fujita
341Patents
29h-index
415Co-inventors
93Inventor score
Filing activity: Feb 9, 1977 → Oct 17, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4425404A | Magnetic recording medium | Emerging Cross-Sectional Technologies | 138 | Expired |
| US5357473A | Semiconductor storage system including defective bit replacement | Physics | 111 | Expired |
| US6654051B1 | Digital camera | Electricity | 99 | Expired |
| USD436967S | Computer generated image on display panel or screen | General | 76 | Expired |
| US6542705B2 | Electrophotographic heating apparatus, system, and method | Electricity | 70 | Expired |
| US4658974A | Transparent liquid container bottle with tinted label and base cup | Performing Operations; Transporting | 68 | Expired |
| US5454883A | High toughness low yield ratio, high fatigue strength steel plate and process of producing same | Chemistry; Metallurgy | 63 | Expired |
| US4931517A | Polymerization of ethylene | Emerging Cross-Sectional Technologies | 57 | Expired |
| US5331054A | Propylene copolymer composition | Emerging Cross-Sectional Technologies | 57 | Expired |
| US5346925A | Method for producing .alpha.-olefin polymers | Emerging Cross-Sectional Technologies | 44 | Expired |
| US4977138A | FR901228 substance and preparation thereof | Human Necessities | 43 | Expired |
| US6122479A | Fixing device for an image forming apparatus and fixing roller for the same | Emerging Cross-Sectional Technologies | 40 | Expired |
| US5444125A | Aminated olefin polymers | Chemistry; Metallurgy | 36 | Expired |
| US6013663A | Dithiolan derivatives, their preparation and their therapeutic effect | Chemistry; Metallurgy | 35 | Expired |
| US6409043B1 | Sheet conveying apparatus | Performing Operations; Transporting | 35 | Expired |
| US5104888A | Thiazolidine derivatives, their preparation and use | Chemistry; Metallurgy | 35 | Expired |
| US7127202B2 | Intermediary transfer apparatus, fixing apparatus and image forming apparatus | Physics | 35 | Expired |
| US6077153A | Polishing pad and apparatus for polishing a semiconductor wafer | Performing Operations; Transporting | 34 | Expired |
| US5104838A | Production of .alpha.-olefin polymers | Chemistry; Metallurgy | 34 | Expired |
| US6969308B2 | Method and apparatus for chemical and mechanical polishing | Performing Operations; Transporting | 34 | Expired |
| US6795678B2 | Image forming apparatus for fixing a toner image on a sheet or recording medium by use of a belt member | Physics | 34 | Expired |
| US7233762B2 | Method of uniformly fixing toner to recording medium in image forming apparatus | Physics | 33 | Expired |
| US6108906A | Fixing device for an image forming apparatus and fixing roller for the same | Emerging Cross-Sectional Technologies | 32 | Expired |
| US6313164A | Dithiolin derivatives, their preparation and their therapeutic effect | Chemistry; Metallurgy | 31 | Expired |
| US5385877A | Production of alpha-olefin polymers | Chemistry; Metallurgy | 31 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.