Kazutoshi Itoh

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for removing iron oxides from water in feed water system...
- Patent number 4,941,973
- Issue date Jul 17, 1990
- Hitachi, Ltd.
- Mamoru Suzuki
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Hermetically closed circulation type, vapor absorption refrigerator
- Patent number 4,912,934
- Issue date Apr 3, 1990
- Hitachi, Ltd.
- Masahiko Itoh
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...