Koichi Maeda
60Patents
14h-index
92Co-inventors
87Inventor score
Filing activity: Aug 22, 1977 → Jan 11, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6524771B2 | Optical recording film and process for production thereof | Physics | 121 | Expired |
| US4944584A | Plastic multifocal point spherical lens | Physics | 116 | Expired |
| US5108857A | Light control sheets | Emerging Cross-Sectional Technologies | 64 | Expired |
| US5112722A | Method of producing light control plate which induces scattering of light at different angles | Physics | 64 | Expired |
| US5942331A | Colored film-coated glass article | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4390187A | Vehicle leveling system | Performing Operations; Transporting | 26 | Expired |
| US5100702A | Thin platinum film-forming composition | Electricity | 22 | Expired |
| US5976678A | Colored film-covered glass articles | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6618515B2 | Connector with a connection detection function, optical fiber cable with a connection detection function, and equipment control mechanism for an optical equipment | Physics | 20 | Expired |
| US5876854A | UV absorbing, colored film-covered glass articles | Chemistry; Metallurgy | 20 | Expired |
| US4354693A | Vehicle height adjusting device | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4596320A | Hydraulic damper | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US7510761B2 | Cutting tool made of surface-coated cemented carbide with hard coating layer exhibiting excellent wear resistance in high speed cutting operation of high hardness steel | Emerging Cross-Sectional Technologies | 17 | Active |
| US5632358A | Elevator roller guide | Performing Operations; Transporting | 14 | Expired |
| US4467275A | DC characteristics measuring system | Physics | 14 | Expired |
| US6811581B2 | High-speed tool steel gear cutting tool and manufacturing method therefor | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6854721B2 | Vibration-damping device | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US6296928A | Hard coating coated member having excellent wear resistance | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4349735A | Vehicle height detecting device | Physics | 11 | Expired |
| US6978876B1 | Step for escalator | Performing Operations; Transporting | 10 | Expired |
| USD798345S1 | Rack for refrigerating machine | General | 10 | Active |
| US4840705A | Papermaking method | Chemistry; Metallurgy | 10 | Expired |
| US6479193B1 | Optical recording film and process for production thereof | Physics | 10 | Expired |
| US4929523A | Light control sheets | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6153127A | Optical thin film, forming composition thereof, and ultraviolet ray absorbing and thermic ray reflecting glass using the same | Emerging Cross-Sectional Technologies | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.