Hisayo Douta

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Patents Grantslast 30 patents

Information Patent Grant
System for detecting deterioration of catalyst for purifying exhaus...
- Patent number 6,295,807
- Issue date Oct 2, 2001
- Denso Corporation
- Hisayo Douta
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
System for detecting deterioration of catalyst for purifying exhaus...
- Patent number 6,073,440
- Issue date Jun 13, 2000
- Denso Corporation
- Hisayo Douta
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES