Ryoichi Sudo
32Patents
11h-index
37Co-inventors
75Inventor score
Filing activity: Sep 19, 1977 → Jun 3, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4420500A | Composition and process for preparing transparent conducting film | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4729938A | Optical disc base plate having a primer layer formed of an ultraviolet-cured resin composition | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4668550A | Optical disc | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5401610A | Optical disc | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4897228A | Method for producing optical disk base | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4437731A | Liquid crystal display device | Chemistry; Metallurgy | 19 | Expired |
| US4303554A | Composition and process for producing transparent conductive film | Chemistry; Metallurgy | 19 | Expired |
| US4145369A | Flame-retardant epoxy resin compositions | Chemistry; Metallurgy | 18 | Expired |
| US4273420A | Liquid crystal display device | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4369208A | Process for producing transparent electroconductive film | Electricity | 16 | Expired |
| US6191675A | High voltage transformer and ignition transformer using the same | Electricity | 15 | Expired |
| US5244775A | Method of manufacturing an optical disc | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5582677A | Optical disk producing apparatus | Performing Operations; Transporting | 8 | Expired |
| US5234792A | Optical data recording medium and manufacturing method thereof | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5766407A | Optical disk producing apparatus | Performing Operations; Transporting | 8 | Expired |
| US5543271A | Optical recording and reproduction apparatus | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4472028A | Organosilicone homeotropic alignment layer with OH group | Physics | 8 | Expired |
| US4812346A | Optical disc base plate and process for producing the same | Physics | 7 | Expired |
| US4889757A | Optical recording disk | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4835027A | Optical disc | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4456659A | Substrate for optical disc recording media | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5906907A | Optical disc | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5254659A | Insulating coating composition, solderable insulated wires, production process of the insulated wires and flyback transformers using the insulated wires | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4866338A | Unsaturated polyester resin composition for cathode ray tube and its use | Electricity | 4 | Expired |
| US5686227A | Optical reproduction apparatus | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.