TOYOTA SCHOOL FOUNDATION
46Patents
32Active
46Granted
51Portfolio score
Filing activity: Mar 5, 1996 → Feb 25, 2022 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6153546A | Ultralow-loss silica glass and optical fibers using the same | Chemistry; Metallurgy | 23 | Expired |
| US6253831A | Casting process for producing metal matrix composite | Performing Operations; Transporting | 18 | Expired |
| US6246815A | Grating element, light wavelength selection utilizing the same, and optical signal transmitting system | Physics | 15 | Expired |
| US5887048A | X-ray reflecting device | Physics | 7 | Expired |
| US6353498B1 | All optical inverter/amplifier | Electricity | 7 | Expired |
| US8992705B2 | Microcrystalline alloy, method for production of the same, apparatus for production of the same, and method for production of casting of the same | Chemistry; Metallurgy | 6 | Active |
| US5798919A | System for and method of equivalent circuit reference type control | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7903695B2 | Optical fiber laser and exciting method using same | Electricity | 4 | Active |
| US5991082A | Lens system with multiple focal lines | Physics | 4 | Expired |
| US5832007A | Apparatus for and method of generating X-ray laser | Electricity | 4 | Expired |
| US6466722B1 | Method of fabricating optical nonlinear thin film waveguide and optical nonlinear thin film waveguide | Physics | 3 | Expired |
| US10502832B2 | Object recognition apparatus and noise removal method | Physics | 2 | Active |
| US10680091B2 | Semiconductor device | Electricity | 2 | Active |
| US6374026B1 | Manufacture of planar waveguide and planar waveguide | Physics | 1 | Expired |
| US10970601B2 | Intermediate process state estimation method | Emerging Cross-Sectional Technologies | 1 | Active |
| US10043106B2 | Corresponding point searching method and distance detection device | Physics | 1 | Active |
| US11362255B2 | Heat flow switching element | Electricity | 1 | Active |
| US11758813B2 | Thermoelectric conversion material, thermoelectric conversion element, thermoelectric conversion module, optical sensor, and method for manufacturing thermoelectric conversion material | Electricity | 1 | Active |
| US6581414B2 | Optical nonlinearity material and production method therefor | Physics | 1 | Expired |
| US10422820B2 | Voltage sensor | Physics | 0 | Active |
| US10401394B2 | Voltage sensor | Physics | 0 | Active |
| US9644255B2 | Surface treatment method for metal material and mold treated by surface treatment method | Chemistry; Metallurgy | 0 | Active |
| US11424589B2 | Optical fiber laser device | Electricity | 0 | Active |
| US11520232B2 | Film for application to three-dimensional sample, method for manufacturing same, and method for transferring fine pattern using same | Electricity | 0 | Active |
| US11269315B2 | Distributed control system | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.