Masahiro Hirakawa

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Clad fine wire electrode-type activated species-generating apparatus
- Patent number 5,413,769
- Issue date May 9, 1995
- Sumitomo Precision Products Co., Ltd.
- Sachiko Okazaki
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Dielectric material used for an ozone generator and a method of for...
- Patent number 5,316,639
- Issue date May 31, 1994
- Okazaki; Sachiko
- Sachiko Okazaki
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...