Ikuo Yamamoto
70Patents
10h-index
100Co-inventors
81Inventor score
Filing activity: Feb 5, 1976 → Jul 28, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4034994A | Tubular end structure of pipe | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US6089178A | Submersible vehicle having swinging wings | Performing Operations; Transporting | 28 | Expired |
| US6750277B1 | Composition and treatment agent | Textiles; Paper | 25 | Expired |
| US5637142A | Nonaqueous emulsified surface treating agent composition | Emerging Cross-Sectional Technologies | 24 | Expired |
| US6472019B1 | Water- and oil-repellent treatment of textile | Textiles; Paper | 23 | Expired |
| US6870937B1 | Electroacoustic transducer, process of producing the same and electroacoustic transducing device using the same | Electricity | 18 | Expired |
| US6740357B2 | Water-and oil-repellent treatment of textile | Textiles; Paper | 17 | Expired |
| US6939580B2 | Water- and oil-repellent treatment of textile | Textiles; Paper | 16 | Expired |
| US6013732A | Stainproofing agent | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5227516A | Fluorine-containing polyether and nonionic surfactant comprising the same | Chemistry; Metallurgy | 10 | Expired |
| US4631172A | Aluminum alloys for galvanic anode | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5214216A | Fluorine-containing polyether and nonionic surfactant comprising the same | Chemistry; Metallurgy | 9 | Expired |
| US5066410A | Refrigerating machine composition comprising a fluorine-containing polyether oil | Chemistry; Metallurgy | 9 | Expired |
| US6746287B2 | Underwater propelling apparatus which stably carries out a propelling operation and a steering operation | Performing Operations; Transporting | 8 | Expired |
| US6019909A | Fluorinated hydrocarbon compound and process for its preparation, and refrigerator oil and magnetic recording medium lubricant | Chemistry; Metallurgy | 8 | Expired |
| US6048941A | Stainproofing agent composition | Chemistry; Metallurgy | 7 | Expired |
| US7641457B2 | Internal gear pump | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US6130298A | Soil-resistant finish | Textiles; Paper | 5 | Expired |
| US7678155B2 | Water- and oil-repellent treatment of textile | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5004554A | Fluorine-containing polyether and lubricant comprising the same | Chemistry; Metallurgy | 5 | Expired |
| US7147669B2 | Water- and oil-repellent treatment of textile | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6284853A | Copolymer and stainproofing agent containing the same | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7758656B2 | Water-and-oil repellent treatment of textile | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6355753B1 | Polymer and antifouling agent composition containing the same | Textiles; Paper | 5 | Expired |
| US9410607B2 | Pulley unit | Mechanical Engineering; Lighting; Heating | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.