Akira Tomita

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Patents Grantslast 30 patents

Information Patent Grant
Negative pressure supply apparatus for automobiles
- Patent number 4,730,999
- Issue date Mar 15, 1988
- Hitachi, Ltd.
- Yoshiaki Tsukuda
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method of brazing an aluminum heat exchanger
- Patent number 4,645,119
- Issue date Feb 24, 1987
- Hitachi, Ltd.
- Takashi Haramaki
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Fin assembly for heat exchangers
- Patent number 4,469,168
- Issue date Sep 4, 1984
- Hitachi, Ltd.
- Masaaki Itoh
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Heat exchanger fin
- Patent number 4,469,167
- Issue date Sep 4, 1984
- Hitachi, Ltd.
- Masaaki Itoh
- F24 - HEATING RANGES VENTILATING