Motoyuki Koga

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method for repairing interior portions of a pipeline
- Patent number 5,089,297
- Issue date Feb 18, 1992
- Hakko Co., Ltd.
- Motoyuki Koga
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
System for repairing joints in pipes laid underground
- Patent number 4,584,963
- Issue date Apr 29, 1986
- Tokyo Gas Co., Ltd.
- Akio Morinaga
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method of repairing pipes laid underground
- Patent number 4,556,580
- Issue date Dec 3, 1985
- Tokyo Gas Co., Ltd.
- Takashi Kamuro
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method for lining pipes in pipelines
- Patent number 4,505,613
- Issue date Mar 19, 1985
- Hakko Co., Ltd.
- Motoyuki Koga
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Pig for repairing interior portions of a pipeline
- Patent number 4,504,204
- Issue date Mar 12, 1985
- Hakko Co., Ltd.
- Motoyuki Koga
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method for lining pipes of a pipeline
- Patent number 4,454,174
- Issue date Jun 12, 1984
- Hakko Co., Ltd.
- Motoyuki Koga
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method for lining pipes in a pipeline
- Patent number 4,454,173
- Issue date Jun 12, 1984
- Hakko Co., Ltd.
- Motoyuki Koga
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Device for preventing leakage at pipe joints
- Patent number 4,346,922
- Issue date Aug 31, 1982
- Hisao Ohtsuga
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Motoyuki Koga

Person

Patents Grantslast 30 patents

Method for repairing interior portions of a pipeline

System for repairing joints in pipes laid underground

Method of repairing pipes laid underground

Method for lining pipes in pipelines

Pig for repairing interior portions of a pipeline

Method for lining pipes of a pipeline

Method for lining pipes in a pipeline

Device for preventing leakage at pipe joints