Masao Kariya

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Tsuchiura-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Construction machine
- Patent number 10,487,476
- Issue date Nov 26, 2019
- Hitachi Construction Machinery Co., Ltd.
- Hiroshi Kumagai
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Construction machine
- Patent number 10,450,721
- Issue date Oct 22, 2019
- Hitachi Construction Machinery Co., Ltd.
- Takuya Inukai
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Construction machine
- Patent number 10,309,081
- Issue date Jun 4, 2019
- Hitachi Construction Machinery Co., Ltd.
- Takuya Inukai
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Pipe breakage control valve device
- Patent number 6,691,510
- Issue date Feb 17, 2004
- Hitachi Construction Machinery Co., Ltd.
- Masao Kariya
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Pipe breakage control valve device
- Patent number 6,409,142
- Issue date Jun 25, 2002
- Hitachi Construction Machinery Co. Ltd.
- Masao Kariya
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Construction Machine
- Publication number 20180245310
- Publication date Aug 30, 2018
- Hitachi Construction Machinery Co., Ltd.
- Hiroshi KUMAGAI
- B60 - VEHICLES IN GENERAL
Information Patent Application
Construction Machine
- Publication number 20180238021
- Publication date Aug 23, 2018
- Hitachi Construction Machinery Co., Ltd.
- Takuya INUKAI
- B60 - VEHICLES IN GENERAL
Information Patent Application
Pipe breakage control valve device
- Publication number 20020157529
- Publication date Oct 31, 2002
- Masao Kariya
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL