Takekazu Maruyama

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Plant monitoring/controlling apparatus
- Patent number 5,959,859
- Issue date Sep 28, 1999
- Hitachi, Ltd.
- Takekazu Maruyama
- G05 - CONTROLLING REGULATING
Information Patent Grant
Plant monitoring apparatus and monitoring method
- Patent number 5,790,424
- Issue date Aug 4, 1998
- Hitachi, Ltd.
- Masashi Sugihara
- G07 - CHECKING-DEVICES
Information Patent Grant
Information terminal system getting information based on a location...
- Patent number 5,598,572
- Issue date Jan 28, 1997
- Hitachi, Ltd.
- Koichiro Tanikoshi
- G05 - CONTROLLING REGULATING
Information Patent Grant
Fault tree displaying method and process diagnosis support system
- Patent number 5,369,756
- Issue date Nov 29, 1994
- Hitachi, Ltd.
- Yoshihiko Imura
- G06 - COMPUTING CALCULATING COUNTING