Hiroyuki Oyachi

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Handa-Ctiy, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of removing soluble manganese
- Patent number 11,459,248
- Issue date Oct 4, 2022
- Metawater Co., Ltd.
- Satoru Mima
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Filtration device
- Patent number 8,083,943
- Issue date Dec 27, 2011
- NGK Insulators, Ltd.
- Kiyotaka Sugiura
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Upward-flow manganese contact column
- Patent number 7,922,904
- Issue date Apr 12, 2011
- Metawater Co., Ltd.
- Kiyotaka Sugiura
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Filter and filter module
- Patent number 7,449,110
- Issue date Nov 11, 2008
- NGK Insulators, Ltd.
- Kiyotaka Sugiura
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Filtering method
- Patent number 6,991,737
- Issue date Jan 31, 2006
- NGK Insulators, Ltd.
- Hiroyuki Oyachi
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF REMOVING SOLUBLE MANGANESE
- Publication number 20200299151
- Publication date Sep 24, 2020
- METAWATER Co., Ltd.
- Satoru MIMA
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
ACTIVATED CARBON SLURRY SUPPLY METHOD
- Publication number 20190381478
- Publication date Dec 19, 2019
- METAWATER Co., Ltd.
- Satoru MIMA
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
UPWARD-FLOW MANGANESE CONTACT COLUMN
- Publication number 20080110817
- Publication date May 15, 2008
- NGK Insulators, Ltd.
- Kiyotaka Sugiura
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
FILTRATION DEVICE
- Publication number 20080110818
- Publication date May 15, 2008
- NGK Insulators, Ltd.
- Kiyotaka Sugiura
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Filter and filter module
- Publication number 20060123753
- Publication date Jun 15, 2006
- Kiyotaka Sugiura
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Filtering method
- Publication number 20040200785
- Publication date Oct 14, 2004
- NGK Insulators, Ltd.
- Hiroyuki Oyachi
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL