HOWA MACHINERY, LTD.
95Patents
8Active
95Granted
37Portfolio score
Filing activity: Nov 4, 1986 → Oct 29, 2019 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4856415A | Rodless cylinder assembly | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US5464233A | Finger chuck for use with machine tool | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4885817A | Air-dust separation system for a pneumatic road-cleaning vehicle | Fixed Constructions | 18 | Expired |
| US6502834B1 | Holding chuck for a tire-wheel with a chatter-suppressing device | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5844340A | Rodless cylinder device | Electricity | 17 | Expired |
| US5351039A | Toolholder device for machine tools | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4841719A | Apparatus for transporting roving bobbins | Performing Operations; Transporting | 15 | Expired |
| US5155473A | Torque and thrust overload detection system for a machine tool | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4799353A | Method for piecing rovings and exchange roving bobbins in a ring spinning frame and working machine for carrying out this method | Textiles; Paper | 14 | Expired |
| US6186484A | Elastomer damper for an actuator cylinder | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5871426A | Machining center | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6293183A | Coupling construction between an actuator and a base | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4821504A | System for controlling displacement of carriage working machines | Performing Operations; Transporting | 12 | Expired |
| US4817267A | Tool change apparatus for machining center and the like | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5154045A | Suction cleaning system and ducting for spinning machines | Textiles; Paper | 11 | Expired |
| US6211942A | Double-sided exposure system | Electricity | 11 | Expired |
| US5688215A | Tool magazine for machine tool | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6427992B1 | Clamping cylinder actuator | Performing Operations; Transporting | 10 | Expired |
| US5375627A | Method and weaving machine for producing multi-axial fabric | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5901967A | Changeable chuck system | Emerging Cross-Sectional Technologies | 9 | Expired |
| USD409625S | Rodless cylinder with a slider | General | 8 | Expired |
| US5064044A | Indexing apparatus | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US6092456A | Rodless power cylinder | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US5067204A | Method for continuously supplying slivers to a roving frame | Textiles; Paper | 7 | Expired |
| US6450932B1 | Spare tool changing system for machining center | Emerging Cross-Sectional Technologies | 7 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.