Naoto Katsumata

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Patents Grantslast 30 patents

Information Patent Grant
Ice thermal storage type air-conditioner and ice thermal storage tank
- Patent number 6,101,837
- Issue date Aug 15, 2000
- Hitachi, Ltd.
- Masao Imanari
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Refrigerating system and operating method thereof
- Patent number 5,709,090
- Issue date Jan 20, 1998
- Hitachi, Ltd.
- Takeshi Endo
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Apparatus for detecting composition of refrigerant and method therefor
- Patent number 5,410,887
- Issue date May 2, 1995
- Hitachi, Ltd.
- Kazumoto Urata
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Fin-tube type heat exchanger
- Patent number 5,360,060
- Issue date Nov 1, 1994
- Hitachi, Ltd.
- Takeo Tanaka
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Absorption type cooling and heating system
- Patent number 4,411,140
- Issue date Oct 25, 1983
- Hitachi, Ltd.
- Naoto Katsumata
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...