Ryuichi Hirota

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Patents Grantslast 30 patents

Information Patent Grant
Dispersion feeder
- Patent number 4,941,565
- Issue date Jul 17, 1990
- Yamato Scale Company, Limited
- Ryuichi Hirota
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Apparent density measuring device
- Patent number 4,766,964
- Issue date Aug 30, 1988
- Yamato Scale Company, Limited
- Ryuichi Hirota
- G01 - MEASURING TESTING
Information Patent Grant
Automatic weighing system with density ratio control of volume
- Patent number 4,721,173
- Issue date Jan 26, 1988
- Yamato Scale Company, Limited
- Ryuichi Hirota
- G01 - MEASURING TESTING