Katsumi Oyabu

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of and system for monitoring bearing conditions
- Patent number 4,406,169
- Issue date Sep 27, 1983
- Hitachi, Ltd.
- Kazuo Ikeuchi
- G07 - CHECKING-DEVICES
Information Patent Grant
Device for connecting turbine blades
- Patent number 4,401,411
- Issue date Aug 30, 1983
- Hitachi, Ltd.
- Katsukuni Hisano
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES