Akira Togashi

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Patents Grantslast 30 patents

Information Patent Grant
Tubular body
- Patent number 4,245,697
- Issue date Jan 20, 1981
- Akira Togashi
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Tubular body
- Patent number 4,228,852
- Issue date Oct 21, 1980
- Akira Togashi
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Heat-conducting oval pipes in heat exchangers
- Patent number 4,206,806
- Issue date Jun 10, 1980
- Akira Togashi
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Gathering the ends of heat-conducting pipes in heat exchangers
- Patent number 4,175,308
- Issue date Nov 27, 1979
- Akira Togashi
- F28 - HEAT EXCHANGE IN GENERAL