Masahiro Yamazaki

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Kudamatsu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of and apparatus for producing superpure nitrogen
- Patent number 5,122,175
- Issue date Jun 16, 1992
- Hitachi, Ltd.
- Shozi Koyama
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Method and apparatus for gas separation
- Patent number 4,746,343
- Issue date May 24, 1988
- Hitachi, Ltd.
- Takazumi Ishizu
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Method and apparatus for separating of product gas from raw gas
- Patent number 4,696,689
- Issue date Sep 29, 1987
- Hitachi, Ltd.
- Hideharu Mori
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Process for recovering nitrogen under pressure in air separation ap...
- Patent number 4,325,719
- Issue date Apr 20, 1982
- Hitachi, Ltd.
- Masahiro Yamazaki
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...