Takeshi Takahashi
265Patents
20h-index
294Co-inventors
93Inventor score
Filing activity: Dec 4, 1973 → Oct 21, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6713170B1 | Hard coating material and film comprising the same | Emerging Cross-Sectional Technologies | 69 | Expired |
| US4803393A | Piezoelectric actuator | Electricity | 64 | Expired |
| US5176120A | Fuel injector | Mechanical Engineering; Lighting; Heating | 46 | Expired |
| US4782807A | Unit injector for an internal combustion engine | Mechanical Engineering; Lighting; Heating | 46 | Expired |
| US6888435B2 | Composite magnetic body, and magnetic element and method of manufacturing the same | Emerging Cross-Sectional Technologies | 36 | Expired |
| US4841936A | Fuel injection control device of an internal combustion engine | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4688536A | Drive circuit for an electrostrictive actuator in a fuel injection valve | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5057734A | Apparatus for driving piezoelectric element for closing and opening valve member | Emerging Cross-Sectional Technologies | 33 | Expired |
| US6784782B2 | Composite magnetic body, and magnetic element and method of manufacturing the same | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5897392A | Wire retaining clip | Electricity | 29 | Expired |
| US7219416B2 | Method of manufacturing a magnetic element | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5707257A | Elliptical battery post and terminal | Electricity | 26 | Expired |
| US4590086A | Process for the production of a water-in-oil-in-water emulsion for foods | Human Necessities | 25 | Expired |
| US5261705A | Coupling for high pressure fluid | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US4931210A | Process for producing a W/O/W type multiple emulsion for medicines, cosmetics, etc. | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5988886A | Closed type thrust dynamic pressure bearing with through hole | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US4958101A | Piezoelectric actuator | Electricity | 21 | Expired |
| US4232638A | Internal combustion engine equipped with an auxiliary combustion chamber | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4503481A | Gas insulated switchgear equipment | Electricity | 20 | Expired |
| US5886820A | Polarizing glass and production process thereof | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5036821A | Fuel injection system for an internal combustion engine | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US6321160A | Navigation apparatus | Physics | 19 | Expired |
| US4858439A | Device for varying a stroke | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US7422697B2 | Composite sintered magnetic material, its manufacturing method, and magnetic element using composite sintered magnetic material | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4894489A | Electromagnetic shield-type doorway for buildings and electromagnetic shielding system therefor | Fixed Constructions | 18 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.