Yoichi Hirata
15Patents
7h-index
22Co-inventors
66Inventor score
Filing activity: Jun 6, 1989 → Aug 5, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD897710S1 | Massage chair | General | 21 | Active |
| US5767400A | Hydraulic test system mounted with borehole television set for simultaneous observation in front and lateral directions | Fixed Constructions | 16 | Expired |
| USD433638S | Watch case with band | General | 15 | Expired |
| USD887741S1 | Massage chair | General | 15 | Active |
| USD891802S1 | Massage chair | General | 9 | Active |
| US10932576B2 | Massage chairs with locking mechanisms | Human Necessities | 8 | Active |
| USD455357S1 | Watch case with band | General | 8 | Expired |
| USD434673S | Watch case | General | 7 | Expired |
| US4986120A | Low-water-pressure controlled hydrologic test method | Fixed Constructions | 3 | Expired |
| US6487129B2 | Semiconductor apparatus | Physics | 2 | Expired |
| US9618385B2 | Measuring apparatus, measuring system and measuring method | Electricity | 1 | Active |
| US8862789B2 | Communication control device | Physics | 1 | Active |
| US6377493B1 | Semiconductor apparatus | Physics | 1 | Expired |
| US8816643B2 | Rechargeable device and power feeding control method | Electricity | 1 | Active |
| US9866980B2 | Measuring apparatus, measuring system and measuring method | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.