Takashi Kanai
51Patents
11h-index
51Co-inventors
81Inventor score
Filing activity: Feb 23, 1984 → Aug 31, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9689466B2 | Gear motor including reduction mechanism | Electricity | 1,000 | Active |
| US5203168A | Hydraulic driving circuit with motor displacement limitation control | Mechanical Engineering; Lighting; Heating | 65 | Expired |
| US5048294A | Safety device for hydraulic closed circuit | Mechanical Engineering; Lighting; Heating | 34 | Expired |
| US4919390A | Solenoid operated valve apparatus | Electricity | 21 | Expired |
| US6408622B1 | Hydraulic drive device | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US5021788A | Digital analog converter | Electricity | 17 | Expired |
| US4568124A | Vehicle seat | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5003559A | Digital transmission system | Physics | 15 | Expired |
| US4813447A | Flow control valve apparatus | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5535587A | Hydraulic drive system | Fixed Constructions | 14 | Expired |
| US5251444A | Hydraulic drive system and valve apparatus | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6526747B2 | Hydraulic driving device | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US6192681A | Hydraulic drive apparatus | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| USD787174S1 | Storage box | General | 11 | Active |
| US8798274B2 | Acoustic apparatus, acoustic adjustment method and program | Electricity | 11 | Active |
| US6222930A | Method of reproducing sound | Electricity | 10 | Expired |
| US6105367A | Hydraulic drive system | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4846046A | Hydraulic drive circuit system | Performing Operations; Transporting | 8 | Expired |
| US5072321A | Apparatus for providing uniform attractive force to a magnetic disk hub in a magnetic disk drive | Physics | 7 | Expired |
| US5003776A | Hydraulic drive system | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US6584770B2 | Hydraulic drive system | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| USD720372S1 | Sewing machine | General | 7 | Active |
| USD628606S1 | Sewing machine | General | 7 | Expired |
| US6397591B1 | Hydraulic driving unit | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US6266304A | Disc eccentricity measuring apparatus and method thereof and apparatus for recording and/or reproducing disc-shaped recording medium | Physics | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.