Kabushikikaisha Matsui Seisakusho
36Patents
10Active
36Granted
41Portfolio score
Filing activity: Jun 24, 1987 → Oct 16, 2019 · 5 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4850703A | Method of mixing pulverulent materials and device for practicing the same | Physics | 71 | Expired |
| US6163976A | Vacuum-type automatic dehumidifying and drying apparatus for powdered or granular material | Performing Operations; Transporting | 68 | Expired |
| US7703217B2 | Drying-storing apparatus for powdered or granular material and feeding system for powdered or granular material | Performing Operations; Transporting | 60 | Expired |
| US8776390B2 | Drying apparatus under reduced pressure for plastic molding material | Emerging Cross-Sectional Technologies | 60 | Active |
| US6062826A | Pulsating vibration air generation means | Emerging Cross-Sectional Technologies | 52 | Expired |
| US6607008B1 | Pulsating vibration air generation means | Emerging Cross-Sectional Technologies | 42 | Expired |
| US5398557A | Rotary sampling apparatus for powdered or granular materials | Physics | 29 | Expired |
| US5033208A | Hopper dryer | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US4904127A | High-density pneumatic transport method for use in powdered or granular materials and system for practising the method | Performing Operations; Transporting | 10 | Expired |
| US4856941A | High density pneumatic transport method for use in powder or granular material and system for practicing the method | Performing Operations; Transporting | 7 | Expired |
| US6302573A | Mixing method of powdered or granular material utilizing pulsating vibration air | Performing Operations; Transporting | 6 | Expired |
| US5150990A | High density pneumatic transport system for use with solid materials | Performing Operations; Transporting | 6 | Expired |
| US7748575B2 | Screw type material feeding apparatus | Performing Operations; Transporting | 5 | Active |
| US5458458A | Method for generating a pulsating air and an apparatus to execute the method | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US5211514A | Transport plug for use in pneumatically transporting solid materials and a pneumatic transport method employing the transport plug | Performing Operations; Transporting | 5 | Expired |
| US9044705B2 | Method of dehumidifying and drying powdered or granular material and system for dehumidifying and drying powdered or granular material | Performing Operations; Transporting | 5 | Active |
| US5525015A | Pneumatic transport system for powdered materials | Physics | 5 | Expired |
| US8882401B2 | Discharge apparatus for powdered or granular material and transport system for the material provided with the discharge apparatus | Performing Operations; Transporting | 4 | Active |
| US4938372A | Storage container for storing powdered or granular materials | Performing Operations; Transporting | 4 | Expired |
| US5154545A | High density pneumatic transport system for use in powdered or granular materials | Performing Operations; Transporting | 4 | Expired |
| US7504593B2 | Continuous quantitative discharging device and material blending system using the same | Physics | 4 | Expired |
| US5146692A | On-line moisture control method for powdered or granular materials and a system for performing the method | Physics | 4 | Expired |
| US4904128A | High-density pneumatic transport method for use in powder or granular material and system for practising the method | Performing Operations; Transporting | 3 | Expired |
| US5274931A | On-line moisture control method for powdered or granular materials and a system to execute the method | Physics | 3 | Expired |
| US5165180A | On-line drying control method for powdered or granular materials and a system to execute the method | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.