Kazuo Takahashi
221Patents
28h-index
308Co-inventors
93Inventor score
Filing activity: Apr 9, 1974 → Jan 23, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5610683A | Immersion type projection exposure apparatus | Physics | 1,116 | Expired |
| US4503335A | Semiconductor printing apparatus with multiple independent temperature control | Electricity | 144 | Expired |
| US6012966A | Precision polishing apparatus with detecting means | Electricity | 77 | Expired |
| US7236558B2 | Three-dimensional image display device creating three-dimensional image directly from projection data | Emerging Cross-Sectional Technologies | 71 | Expired |
| US4825247A | Projection exposure apparatus | Physics | 69 | Expired |
| US5729387A | Solar lighting apparatus and controller for controlling the solar lighting apparatus | Emerging Cross-Sectional Technologies | 64 | Expired |
| US4767142A | Forceps for semiconductor silicon wafer | Emerging Cross-Sectional Technologies | 58 | Expired |
| US4285310A | Dual intake valve type internal combustion engine | Emerging Cross-Sectional Technologies | 55 | Expired |
| US6183345A | Polishing apparatus and method | Performing Operations; Transporting | 52 | Expired |
| US4600733A | Disintegration assistant for casting molds | Performing Operations; Transporting | 51 | Expired |
| US4766465A | Carry device for fine movement | Emerging Cross-Sectional Technologies | 43 | Expired |
| US6683933B2 | Three-dimensional image display device in network | Physics | 41 | Expired |
| US4937618A | Alignment and exposure apparatus and method for manufacture of integrated circuits | Physics | 39 | Expired |
| US4258671A | Variable valve lift mechanism used in an internal combustion engine | Mechanical Engineering; Lighting; Heating | 38 | Expired |
| US6135858A | Substrate holding device and polishing method and polishing apparatus using the same | Electricity | 37 | Expired |
| US4659225A | Pattern exposure apparatus with distance measuring system | Physics | 36 | Expired |
| US7492970B2 | Reporting system in a networked environment | Physics | 35 | Expired |
| US4902700A | Thiazole derivative and leukotriene antagonist containing the same as the effective ingredients | Chemistry; Metallurgy | 35 | Expired |
| US6826297B2 | Displaying three-dimensional medical images | Physics | 34 | Expired |
| US5903530A | Apparatus for reproducing record information of multiple-layered optical disc | Physics | 34 | Expired |
| US6179695A | Chemical mechanical polishing apparatus and method | Performing Operations; Transporting | 34 | Expired |
| US7209578B2 | Image based medical report system on a network | Physics | 33 | Expired |
| US6152805A | Polishing machine | Emerging Cross-Sectional Technologies | 32 | Expired |
| US5297132A | Draw type optical recording medium | Physics | 31 | Expired |
| US4874954A | Projection exposure apparatus | Physics | 31 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.