Kenji Koiwa

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Tsukuba-gun, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rotary actuator with cushion mechanism
- Patent number 6,497,172
- Issue date Dec 24, 2002
- SMC Corporation
- Akihiro Hirano
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Rotary actuator with cushion mechanism
- Patent number 6,435,072
- Issue date Aug 20, 2002
- SMC Corporation
- Akihiro Hirano
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Combination actuator with speed variable mechanism
- Patent number 6,431,048
- Issue date Aug 13, 2002
- SMC Corporation
- Kenji Koiwa
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Rotary actuator with cushion mechanism
- Publication number 20010020413
- Publication date Sep 13, 2001
- SMC Corporation
- Akihiro Hirano
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Rotary actuator with cushion mechanism
- Publication number 20010018864
- Publication date Sep 6, 2001
- SMC Corporation
- Akihiro Hirano
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Combination actuator with speed variable mechanism
- Publication number 20010018859
- Publication date Sep 6, 2001
- SMC Corporation
- Kenji Koiwa
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL