Yuki SASAGAWA

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Hiratsuka-shi Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing engine poppet valve
- Patent number 11,850,690
- Issue date Dec 26, 2023
- NITTAN Corporation
- Ryoichi Yoshino
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for manufacturing engine poppet valve
- Patent number 11,536,167
- Issue date Dec 27, 2022
- NITTAN VALVE CO., LTD.
- Koji Kunitake
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Hollow exhaust poppet valve
- Patent number 11,300,018
- Issue date Apr 12, 2022
- NITTAN VALVE CO., LTD.
- Koji Kunitake
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Patents Applicationslast 30 patents

Information Patent Application
Method for Manufacturing Engine Poppet Valve
- Publication number 20230017343
- Publication date Jan 19, 2023
- NITTAN Corporation
- Ryoichi YOSHINO
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Method for Manufacturing Engine Poppet Valve
- Publication number 20210270154
- Publication date Sep 2, 2021
- NITTAN VALVE CO., LTD.
- Koji KUNITAKE
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Hollow Exhaust Poppet Valve
- Publication number 20210003044
- Publication date Jan 7, 2021
- NITTAN VALVE CO., LTD.
- Koji KUNITAKE
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES