Takeshi Tsuda
40Patents
10h-index
75Co-inventors
78Inventor score
Filing activity: Apr 8, 1975 → Aug 10, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4375566A | Process for producing ortho-alkylated phenols from anisoles | Chemistry; Metallurgy | 71 | Expired |
| US5948593A | Optical recording medium | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6106999A | Photosensitizer, visible light curable resin composition using the same, and use of the composition | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4851873A | Developing device | Physics | 19 | Expired |
| US6527642B1 | Power transmission coupling and power transmission apparatus | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4746952A | Developing device | Physics | 17 | Expired |
| US5855979A | Optical recording medium | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5492744A | Optical information recording medium and composition for optical information recording film | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5085915A | Magnetic recording medium | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4668283A | Magnetic powder and production process thereof | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4860053A | Color image forming apparatus having a plurality of developing units | Physics | 10 | Expired |
| US3978229A | Synergistic composition comprising PGF.sub.2.sub..alpha. and PGE.sub.2 | Chemistry; Metallurgy | 9 | Expired |
| US4361709A | Process for the production of o-alkylated phenols | Chemistry; Metallurgy | 8 | Expired |
| US7030170B2 | Photosensitive resin composition, dry film, and workpiece using the same | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5876820A | Optical information recording medium and composition for optical information recording film | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5672462A | Optical recording medium | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7766553B2 | Ball bearing retainer, and ball bearing employing the same | Emerging Cross-Sectional Technologies | 3 | Active |
| US7851124B2 | Composition for forming wiring protective film and uses thereof | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6060606A | Dipyrromethene metal chelate compounds | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4271571A | Process for manufacturing shadow mask of Braun tube for color TV | Chemistry; Metallurgy | 2 | Expired |
| US4309886A | Process for producing steel strip material for use in manufacture of shadow mask of Braun tube for color TV | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7452926B2 | Resin pulley formed of a resin composition having a phenol resin, an inorganic powder , a reinforcing fiber, and a lubricant | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US10564032B2 | Vibration mode determining apparatus | Physics | 2 | Active |
| US4916236A | Preparation of indoles by cyclization | Chemistry; Metallurgy | 2 | Expired |
| US10599126B2 | Tool-path correcting apparatus and tool-path correcting method | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.