Tomohiro Itoh
36Patents
5h-index
35Co-inventors
69Inventor score
Filing activity: Apr 18, 1985 → Mar 28, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4829346A | Field-effect transistor and the same associated with an optical semiconductor device | Electricity | 15 | Expired |
| US4740822A | Field effect device maintaining a high speed operation in a high voltage operation | Electricity | 9 | Expired |
| US4866490A | Field effect device maintaining a high speed operation in a high voltage operation | Electricity | 9 | Expired |
| US6891914B1 | Absorbing rod, an apparatus for inserting the absorbing rod, a cask, and a method of storing spent fuel assemblies | Emerging Cross-Sectional Technologies | 9 | Expired |
| US9097216B2 | Fuel vapor purge device | Mechanical Engineering; Lighting; Heating | 8 | Active |
| US7161349B2 | Magnetic rotation angle sensor | Physics | 5 | Expired |
| US8549896B2 | Vane pump and evaporation leak check system using the same | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US8850873B2 | Evaporated fuel leak detecting apparatus | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US7823630B2 | Tube for heat exchanger and method of manufacturing tube | Emerging Cross-Sectional Technologies | 3 | Active |
| US5130690A | Photoconductor | Electricity | 3 | Expired |
| US10221811B2 | Vaporized fuel processing apparatus | Physics | 2 | Active |
| US9638145B2 | Fuel-vapor leakage detector | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8800360B2 | Vane pump apparatus and leak check system having the same | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US10473062B2 | Fuel vapor processing device | Performing Operations; Transporting | 1 | Active |
| US10156208B2 | Inspection apparatus and inspection method | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10422303B2 | Vane pump and fuel vapor leakage detection device using the same | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US4837605A | Indium-phosphide hetero-MIS-gate field effect transistor | Electricity | 1 | Expired |
| US10941719B2 | Evaporative fuel treating apparatus | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US11674477B2 | Leak hole determination device of evaporated fuel processing device | Physics | 1 | Active |
| US8579613B2 | Vane pump and vapor leakage check system having the same | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US11493402B2 | Pressure sensor for evaporated fuel leak detector | Physics | 0 | Active |
| US9239033B2 | Fuel vapor treatment system | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US12163493B2 | Malfunction diagnosis device for leakage diagnosis device | Emerging Cross-Sectional Technologies | 0 | Active |
| US10801917B2 | Fuel vapor processing device | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US12018679B2 | Vane pump | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.