Yoshihiro Takahashi

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San Francisco, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
System and process for total gaseous nonmethane organic analysis
- Patent number 4,302,422
- Issue date Nov 24, 1981
- Envirotech Corporation
- Yoshihiro Takahashi
- G01 - MEASURING TESTING
Information Patent Grant
Determination of total organic halides in water
- Patent number 4,227,887
- Issue date Oct 14, 1980
- Envirotech Corporation
- Yoshihiro Takahashi
- G01 - MEASURING TESTING
Information Patent Grant
Pyrolysis furnace
- Patent number 3,972,682
- Issue date Aug 3, 1976
- Envirotech Corporation
- Thomas M. Stephens
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Sparging device
- Patent number 3,958,945
- Issue date May 25, 1976
- Envirotech Corporation
- Yoshihiro Takahashi
- G01 - MEASURING TESTING