Tsuyoshi Ogawa
88Patents
12h-index
93Co-inventors
87Inventor score
Filing activity: Jul 29, 1981 → Jan 26, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7306689B2 | Optical waveguide and method for producing same | Emerging Cross-Sectional Technologies | 34 | Expired |
| US6803324B2 | Semiconductor device and its manufacturing method | Electricity | 32 | Expired |
| US7193311B2 | Multi-chip circuit module and method for producing the same | Electricity | 30 | Expired |
| US7235477B2 | Multi-layer interconnection circuit module and manufacturing method thereof | Electricity | 27 | Expired |
| US7753041B2 | Crossbow | Mechanical Engineering; Lighting; Heating | 26 | Active |
| US6919226B2 | Method for producing a multi-chip circuit module including a multi-layered wiring section utilizing a via-on-via structure | Electricity | 23 | Expired |
| US7266262B2 | Hybrid circuit substrate with optical and electrical interconnects, hybrid circuit module with optical and electrical interconnects and manufacturing methods thereof | Electricity | 17 | Expired |
| US6885099B2 | Multichip module, manufacturing method thereof, multichip unit and manufacturing method thereof | Electricity | 16 | Expired |
| US6797890B2 | High frequency module device and method for its preparation | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6477296B1 | Optical waveguide device, optical transmitting and receiving device, method of manufacturing optical waveguide device and method of manufacturing optical transmitting and receiving device | Physics | 15 | Expired |
| US7473992B2 | Multi-layer interconnection circuit module and manufacturing method thereof | Electricity | 14 | Expired |
| US5894363A | Electro-optical element | Physics | 14 | Expired |
| US4346167A | Silver halide photographic light-sensitive material and process for producing silver halide photographic emulsion | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6714422B2 | High frequency module device and method for its preparation | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7167608B2 | Hybrid circuit substrate with optical and electrical interconnects, hybrid circuit module with optical interconnects and manufacturing methods thereof | Electricity | 11 | Expired |
| US6579398B1 | Method of manufacturing optical waveguide | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7915076B2 | Hybrid module and method of manufacturing the same | Electricity | 9 | Active |
| US7183135B2 | Method for manufacturing high-frequency module device | Electricity | 8 | Expired |
| US7199800B2 | Unit and program for displaying map | Physics | 8 | Expired |
| US7163598B2 | Optical waveguide and method for producing same | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5410561A | Optical wavelength converter for obtaining wavelength conversion efficiency | Electricity | 6 | Expired |
| US6611651B1 | Material for optical waveguide, and optical waveguide and method for manufacturing the same | Physics | 6 | Expired |
| US6831357B2 | Circuit substrate device, method for producing the same, semiconductor device and method for producing the same | Electricity | 6 | Expired |
| US6256441A | Optical waveguide and manufacturing thereof | Physics | 6 | Expired |
| US11467514B2 | Image forming apparatus and image forming system | Physics | 5 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.