RIKEN
1,105Patents
693Active
1,105Granted
58Portfolio score
Filing activity: Nov 30, 1977 → Jun 7, 2024 · 221 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6773565B2 | NOx sensor | Physics | 298 | Expired |
| US6629028B2 | Method and system of optical guidance of mobile body | Physics | 184 | Expired |
| US6469846B2 | Grism | Physics | 155 | Expired |
| US6960986B2 | Support system using data carrier system | Human Necessities | 118 | Expired |
| US6537138B2 | Method of grinding an axially asymmetric aspherical mirror | Performing Operations; Transporting | 95 | Expired |
| US8149211B2 | Deformable sensor system | Physics | 87 | Active |
| US8351670B2 | Region data editing apparatus, region data editing method, and recording medium | Physics | 80 | Active |
| US7026911B2 | Point contact array, not circuit, and electronic circuit comprising the same | Physics | 70 | Expired |
| US8728459B2 | Bacteria and method for controlling plant disease using the same | Emerging Cross-Sectional Technologies | 64 | Active |
| US5260128A | Electromagnetic shielding sheet | Emerging Cross-Sectional Technologies | 53 | Expired |
| US7473982B2 | Point contact array, not circuit, and electronic circuit comprising the same | Physics | 52 | Active |
| US6544170B1 | Biosignal measuring method and apparatus | Human Necessities | 49 | Expired |
| US7525410B2 | Point contact array, not circuit, and electronic circuit using the same | Physics | 49 | Active |
| US5075274A | Exhaust gas cleaner | Emerging Cross-Sectional Technologies | 48 | Expired |
| US5246257A | Skew pipe coupling | Mechanical Engineering; Lighting; Heating | 45 | Expired |
| US5141714A | Exhaust gas cleaner | Emerging Cross-Sectional Technologies | 44 | Expired |
| US5080713A | Hard alloy particle dispersion type wear resisting sintered ferro alloy and method of forming the same | Mechanical Engineering; Lighting; Heating | 38 | Expired |
| US6342387B1 | Method for isolating DNA | Chemistry; Metallurgy | 38 | Expired |
| US5882607A | Exhaust gas cleaner and method for cleaning exhaust gas | Performing Operations; Transporting | 37 | Expired |
| US7106528B2 | Method and apparatus for manufacturing large double-sided curved Fresnel lens | Performing Operations; Transporting | 36 | Expired |
| US5859376A | Iron base sintered alloy with hard particle dispersion and method for producing same | Chemistry; Metallurgy | 34 | Expired |
| US6269263A | Method for estimating heart rate variability and apparatus for embodying estimation | Human Necessities | 34 | Expired |
| US6294337A | Method for determining DNA nucleotide sequence | Chemistry; Metallurgy | 34 | Expired |
| US4681817A | Piston ring | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5534237A | Method of cleaning an exhaust gas and exhaust gas cleaner therefor | Mechanical Engineering; Lighting; Heating | 32 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.