Hiroshi Iijima
51Patents
12h-index
66Co-inventors
87Inventor score
Filing activity: Oct 6, 1975 → Feb 10, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4519649A | Wheelchair | Emerging Cross-Sectional Technologies | 37 | Expired |
| US4934003A | Device for transferring the disabled | Emerging Cross-Sectional Technologies | 28 | Expired |
| US7273252B2 | Vehicle seat | Performing Operations; Transporting | 23 | Expired |
| US5017933A | Vehicle window antenna with antenna elements on two surfaces | Electricity | 23 | Expired |
| US6229493A | Glass antenna device for vehicle | Electricity | 20 | Expired |
| US5521606A | Window glass antenna for motor vehicles | Electricity | 19 | Expired |
| US5436679A | Apparatus for observing and photographing a corneal endothelium | Human Necessities | 19 | Expired |
| US4868438A | Three-phase induction motor | Electricity | 15 | Expired |
| US5239302A | Wave reception apparatus for a motor vehicle | Electricity | 14 | Expired |
| US6937198B2 | Glass antenna system for vehicles | Electricity | 13 | Expired |
| US4109161A | Memory circuit with protection circuit | Electricity | 12 | Expired |
| US7071886B2 | Glass antenna and glass antenna system for vehicles | Electricity | 12 | Expired |
| US7019699B2 | On-board antenna | Electricity | 11 | Expired |
| US6053867A | Noncontact tonometer for measuring intraocular pressure | Human Necessities | 10 | Expired |
| US5614966A | Ophthalmologic instrument | Human Necessities | 10 | Expired |
| US5033841A | Ophthalmological instrument | Human Necessities | 10 | Expired |
| US4035985A | Method and apparatus for wrapping goods in a stretchable film material | Performing Operations; Transporting | 10 | Expired |
| US6121934A | Glass antenna device for vehicle | Electricity | 9 | Expired |
| US4755702A | Three-phase induction motor | Electricity | 9 | Expired |
| US5657029A | Glass antenna device for automobile telephone | Electricity | 8 | Expired |
| US5465123A | Noncontact type tonometer | Human Necessities | 8 | Expired |
| US5198825A | Reception system for a motor vehicle | Electricity | 8 | Expired |
| US6995722B2 | On-board antenna | Electricity | 7 | Expired |
| US5079560A | Vehicle window antenna | Electricity | 7 | Expired |
| US5113195A | Glass window antenna for use in a motor vehicle | Electricity | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.