Tomoyuki Takada
50Patents
7h-index
51Co-inventors
75Inventor score
Filing activity: Dec 21, 1994 → Nov 16, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5587014A | Method for manufacturing group III-V compound semiconductor crystals | Chemistry; Metallurgy | 84 | Expired |
| US6023077A | Group III-V compound semiconductor and light-emitting device | Electricity | 18 | Expired |
| US9278454B2 | Production apparatus | Emerging Cross-Sectional Technologies | 16 | Active |
| US6346720B1 | Layered group III-V compound semiconductor, method of manufacturing the same, and light emitting element | Electricity | 14 | Expired |
| US5708301A | Electrode material and electrode for III-V group compound semiconductor | Electricity | 13 | Expired |
| US8633496B2 | Optical device and semiconductor wafer | Electricity | 12 | Active |
| US6875273B2 | Method and system for manufacturing III-V Group compound semiconductor and III-V Group compound semiconductor | Chemistry; Metallurgy | 8 | Expired |
| US6225195A | Method for manufacturing group III-V compound semiconductor | Electricity | 7 | Expired |
| US5980632A | Member for use in production device for semiconductors | Electricity | 5 | Expired |
| US6617235B2 | Method of manufacturing Group III-V compound semiconductor | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7383444B2 | Information processing system, information processing apparatus, method of controlling the information processing apparatus, disk array device, method of controlling the disk array device, method of controlling display of the disk array device, and control programs for implementing the methods | Physics | 5 | Active |
| US8766318B2 | Semiconductor wafer, method of manufacturing a semiconductor wafer, and electronic device | Electricity | 5 | Active |
| US8169004B2 | Compound semiconductor epitaxial substrate and process for producing the same | Electricity | 5 | Expired |
| US8831007B2 | Communication system, method of controlling the same, and storage medium | Electricity | 5 | Active |
| US6472298B2 | Layered group III-V compound semiconductor, method of manufacturing the same and light emitting element | Electricity | 5 | Expired |
| US6803961B1 | Image-capturing apparatus, electronic still camera, method and apparatus for processing mounting surface of image-capturing apparatus and metal member contact structure | Electricity | 4 | Expired |
| US8837516B2 | Communication apparatus, communication system, communication apparatus control method and non-transitory computer-readable storage medium | Electricity | 3 | Active |
| US6104044A | Semiconductor compound electrode material containing calcium and a noble metal | Electricity | 3 | Expired |
| US8384822B2 | Digital camera and interchangeable lens | Electricity | 3 | Active |
| US8184662B2 | Communication system, communication apparatus, and control method thereof | Electricity | 3 | Active |
| US6914274B2 | Thin-film semiconductor epitaxial substrate having boron containing interface layer between a collector layer and a sub-collector layer | Electricity | 2 | Expired |
| US8716836B2 | Semiconductor wafer, semiconductor wafer manufacturing method, and electronic device | Electricity | 2 | Active |
| US8772830B2 | Semiconductor wafer including lattice matched or pseudo-lattice matched buffer and GE layers, and electronic device | Electricity | 1 | Active |
| US8809908B2 | Semiconductor wafer, semiconductor wafer manufacturing method, and electronic device | Electricity | 1 | Active |
| US9117658B2 | Method of producing semiconductor wafer, semiconductor wafer, method of producing semiconductor device and semiconductor device | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.