Yutaka Konno

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Miyagi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cleaved type safety valve for metal vessels
- Patent number 6,589,687
- Issue date Jul 8, 2003
- Sony Corporation
- Keiichi Konno
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Breakable safety valve for metal-made container
- Patent number 6,265,097
- Issue date Jul 24, 2001
- A. Koike & Co.
- Keiichi Konno
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL