Masataka Nakamura
66Patents
7h-index
55Co-inventors
75Inventor score
Filing activity: Dec 13, 1998 → Feb 4, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8415405B2 | Silicone (meth)acrylamide monomer, polymer, ophthalmic lens, and contact lens | Emerging Cross-Sectional Technologies | 71 | Active |
| US9056878B2 | Hydrolysis-resistant silicone compounds | Physics | 62 | Active |
| US7317117B2 | Siloxanyl-containing monomers | Chemistry; Metallurgy | 32 | Expired |
| US6089972A | Air conditioner | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US7838698B2 | Hydrolysis-resistant silicone compounds | Physics | 13 | Active |
| US7329694B2 | Ocular lens | Physics | 12 | Expired |
| US6418418B1 | Transaction information processing system | Physics | 8 | Expired |
| US8771749B2 | Stable bicarbonate ion-containing drug solution | Performing Operations; Transporting | 7 | Active |
| US7713449B2 | Polymer electrolytic material, polymer electrolytic part, membrane electrode assembly, and polymer electrolyte fuel cell | Emerging Cross-Sectional Technologies | 6 | Active |
| US9297930B2 | Low water content soft lens for eye, and method for producing the same | Physics | 6 | Active |
| US8476389B2 | Silicone hydrogel, lens for eye and contact lens | Emerging Cross-Sectional Technologies | 5 | Active |
| US6885966B1 | Device for providing a signal in response to a change of the ambient pressure | Performing Operations; Transporting | 5 | Expired |
| US8541483B2 | Silicone (meth)acrylamide monomer, polymer, ophthalmic lens, and contact lens | Emerging Cross-Sectional Technologies | 5 | Active |
| US8710167B2 | Silicone hydrogel, lens for eye and contact lens | Emerging Cross-Sectional Technologies | 4 | Active |
| US9745460B2 | Silicone acrylamide copolymer | Chemistry; Metallurgy | 4 | Active |
| US8455141B2 | Polymer electrolyte as well as polymer electrolyte membrane, membrane electrode assembly and polymer electrolyte fuel cell using the same | Emerging Cross-Sectional Technologies | 4 | Active |
| US7231346B2 | Speech section detection apparatus | Physics | 4 | Expired |
| US8748548B2 | Macromonomer mixture, terminal-reactive polymer mixture, intermediate for macromonomer and silicone hydrogel | Chemistry; Metallurgy | 4 | Active |
| US8779178B2 | Hydrolysis-resistant silicone compounds | Physics | 4 | Active |
| US8623934B2 | Silicone (meth)acrylamide monomer, polymer, ophthalmic lens, and contact lens | Emerging Cross-Sectional Technologies | 4 | Active |
| US8652499B2 | Medical antimicrobial composition and medical device comprising the same | Human Necessities | 3 | Active |
| US8080622B2 | Soluble silicone prepolymers | Chemistry; Metallurgy | 3 | Active |
| US9046644B2 | Low water content soft lens for eye, and method for producing the same | Human Necessities | 3 | Active |
| US7838164B2 | Film electrode composite element and production method therefor, and fuel cell | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8921449B2 | Hydrolysis-resistant silicone compounds | Physics | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.