Nagaoka Kanaami Kabushiki Kaisha

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Matsubara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Well structure having a screen element with wire supporting rods
- Patent number 5,069,279
- Issue date Dec 3, 1991
- Nagaoka Kanaami Kabushiki Kaisha
- Tadayoshi Nagaoka
- E21 - EARTH DRILLING MINING
Information Patent Grant
Double cylinder screen
- Patent number 4,818,403
- Issue date Apr 4, 1989
- Nagaoka Kanaami Kabushiki Kaisha
- Tadayoshi Nagaoka
- E21 - EARTH DRILLING MINING
Information Patent Grant
Distributor/collector assembly
- Patent number 4,578,248
- Issue date Mar 25, 1986
- Nagaoka Kanaami Kabushiki Kaisha
- Tadayoshi Nagaoka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method for manufacturing fluid contacting device
- Patent number 4,366,608
- Issue date Jan 4, 1983
- Nagaoka Kanaami Kabushiki Kaisha
- Tadayoshi Nagaoka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

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