NGN Co., Ltd.

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Non-return bias valve mechanism for a fluid pumping assembly
- Patent number 6,619,324
- Issue date Sep 16, 2003
- NGN Co., Ltd.
- Nagamasa Yamada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Apparatus for automatically welding tubular components of fusible r...
- Patent number 5,793,017
- Issue date Aug 11, 1998
- N.G.N. Co. Ltd.
- Nagamasa Yamada
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL