Takuma KOINUMA

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Tsuchiura-shi, Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Power transmission device for vehicle
- Patent number 11,885,398
- Issue date Jan 30, 2024
- Hitachi Construction Machinery Co., Ltd.
- Makoto Nakagaki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Power transmission device for vehicle
- Patent number 11,859,703
- Issue date Jan 2, 2024
- Hitachi Construction Machinery Co., Ltd.
- Hiroki Ueno
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Speed-changing device
- Patent number 11,674,576
- Issue date Jun 13, 2023
- Hitachi Construction Machinery Co., Ltd.
- Takuma Koinuma
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Power transmission device
- Patent number 11,506,246
- Issue date Nov 22, 2022
- Hitachi Construction Machinery Co., Ltd.
- Takuma Koinuma
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Power Transmission Device for Vehicle
- Publication number 20250027295
- Publication date Jan 23, 2025
- Hitachi Construction Machinery Co., Ltd.
- Makoto NAKAGAKI
- B60 - VEHICLES IN GENERAL
Information Patent Application
Power Transmission Device for Vehicle
- Publication number 20230349456
- Publication date Nov 2, 2023
- Hitachi Construction Machinery Co., Ltd.
- Makoto NAKAGAKI
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Speed-Changing Device
- Publication number 20230147860
- Publication date May 11, 2023
- Hitachi Construction Machinery Co., Ltd.
- Takuma KOINUMA
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
POWER TRANSMISSION DEVICE FOR VEHICLE
- Publication number 20230105106
- Publication date Apr 6, 2023
- Hitachi Construction Machinery Co., Ltd.
- Hiroki UENO
- B60 - VEHICLES IN GENERAL
Information Patent Application
Power Transmission Device
- Publication number 20220128100
- Publication date Apr 28, 2022
- Hitachi Construction Machinery Co., Ltd.
- Takuma KOINUMA
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...