Weihua Xu

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Patents Grantslast 30 patents

Information Patent Grant
Sheet supply and transfer device for printers presumable of sheet s...
- Patent number 6,089,566
- Issue date Jul 18, 2000
- Riso Kagaku Corporation
- Weihua Xu
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Paper sheet receptacle having transversely elastically supported ba...
- Patent number 5,931,461
- Issue date Aug 3, 1999
- Riso Kagaku Corporation
- Weihua Xu
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL