NIPPON KOEI CO., LTD.

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Natural invasion promoting method and spraying material
- Patent number 11,963,485
- Issue date Apr 23, 2024
- Nippon Koei Co., Ltd.
- Mineto Tomisaka
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Opening/closing device
- Patent number 10,415,201
- Issue date Sep 17, 2019
- Nippon Koei Co., Ltd.
- Motonobu Ito
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Vortex flow type water surface control device for draining device
- Patent number 9,850,649
- Issue date Dec 26, 2017
- Nippon Koei Co., Ltd.
- Hiromi Watanabe
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Vortex flow type water surface control device for draining device
- Patent number 8,979,432
- Issue date Mar 17, 2015
- Tokyo Metropolitan Government
- Ikuo Uemura
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Opening/closing device
- Patent number 8,695,628
- Issue date Apr 15, 2014
- Nippon Koei Co., Ltd.
- Hiroshi Komatsu
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Opening/closing device
- Patent number 8,590,560
- Issue date Nov 26, 2013
- Nippon Koei Co., Ltd.
- Hiroshi Komatsu
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Vortex flow type water surface control device for draining device
- Patent number 8,459,900
- Issue date Jun 11, 2013
- Tokyo Metropolitan Government
- Ikuo Uemura
- E03 - WATER SUPPLY SEWERAGE

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Patents Applicationslast 30 patents

Information Patent Application
NATURAL INVASION PROMOTING METHOD AND SPRAYING MATERIAL
- Publication number 20220046868
- Publication date Feb 17, 2022
- NIPPON KOEI CO., LTD.
- Mineto TOMISAKA
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
OPENING/CLOSING DEVICE
- Publication number 20180135266
- Publication date May 17, 2018
- NIPPON KOEI CO., LTD.
- Motonobu ITO
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
VORTEX FLOW TYPE WATER SURFACE CONTROL DEVICE FOR DRAINING DEVICE
- Publication number 20130240421
- Publication date Sep 19, 2013
- NIPPON KOEI CO., LTD.
- Hiromi Watanabe
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
OPENING/CLOSING DEVICE
- Publication number 20110297250
- Publication date Dec 8, 2011
- NIPPON KOEI CO., LTD.
- Hiroshi Komatsu
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
OPENING/CLOSING DEVICE
- Publication number 20110290343
- Publication date Dec 1, 2011
- NIPPON KOEI CO., LTD.
- Hiroshi Komatsu
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
VORTEX FLOW TYPE WATER SURFACE CONTROL DEVICE FOR DRAINING DEVICE
- Publication number 20110284441
- Publication date Nov 24, 2011
- TOKYO METROPOLITAN GOVERNMENT
- Ikuo Uemura
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
Vortex Flow Type Water Surface Control Device for Draining Device
- Publication number 20080023074
- Publication date Jan 31, 2008
- TOKYO METROPOLITAN GOVERNMENT
- Ikuo Uemura
- E03 - WATER SUPPLY SEWERAGE

NIPPON KOEI CO., LTD.

Organization

Patents Grantslast 30 patents

Natural invasion promoting method and spraying material

Opening/closing device

Vortex flow type water surface control device for draining device

Vortex flow type water surface control device for draining device

Opening/closing device

Opening/closing device

Vortex flow type water surface control device for draining device

Patents Applicationslast 30 patents

NATURAL INVASION PROMOTING METHOD AND SPRAYING MATERIAL

OPENING/CLOSING DEVICE

VORTEX FLOW TYPE WATER SURFACE CONTROL DEVICE FOR DRAINING DEVICE

OPENING/CLOSING DEVICE

OPENING/CLOSING DEVICE

VORTEX FLOW TYPE WATER SURFACE CONTROL DEVICE FOR DRAINING DEVICE

Vortex Flow Type Water Surface Control Device for Draining Device