Kuroda Precision Industries Ltd.
56Patents
36Active
56Granted
48Portfolio score
Filing activity: Aug 20, 1980 → Feb 11, 2022 · 10 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5995226A | Optical apparatus for measuring profiles of a wafer | Electricity | 61 | Expired |
| US6174002A | Tube coupling and method of producing separation prevention ring for the tube coupling | Mechanical Engineering; Lighting; Heating | 35 | Expired |
| US4500075A | Air pressure shock absorber | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US4344603A | Electromagnetic valve apparatus with a hand-operated transfer device | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4477976A | Contact sensor | Physics | 19 | Expired |
| US6504615B1 | Optical instrument for measuring shape of wafer | Electricity | 17 | Expired |
| US5163217A | Die for manufacturing laminated core | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4657454A | Chuck for holding rotary cutting tool | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5498163A | Fluid/electrical rotary joint | Electricity | 12 | Expired |
| US4514149A | Cutting fluid supply apparatus | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4676127A | Tool holding apparatus having cutting edge moving function | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6367159B1 | Method and apparatus for measuring surface shape of thin element | Physics | 11 | Expired |
| US4693454A | Air pressure shock absorber | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US4937568A | Signal serial/parallel conversion system | Electricity | 11 | Expired |
| US5838249A | Control/supervisory signal transmission/reception system | Electricity | 10 | Expired |
| US10201844B2 | Apparatus and method for manufacturing laminated iron core | Electricity | 7 | Active |
| US6209381A | Method and system for chamfering and press therefor | Performing Operations; Transporting | 6 | Expired |
| US4723360A | Rotary apparatus of die unit for manufacturing core lamination assembly | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6212786A | Thin board holding device and method of and apparatus for measuring thickness of thin board | Emerging Cross-Sectional Technologies | 4 | Expired |
| USD746116S1 | Shaft adapter | General | 3 | Active |
| USD745815S1 | Ball screw | General | 3 | Active |
| US5224747A | Chuck device with multistage degree of opening | Emerging Cross-Sectional Technologies | 3 | Expired |
| US11355282B2 | Manufacturing method for laminated iron core | Electricity | 2 | Active |
| US10532501B2 | Resin filling device and resin filling method for magnet embedded core | Electricity | 2 | Active |
| US10873249B2 | Resin filling method and resin filling device for magnet embedded core | Performing Operations; Transporting | 2 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.