Shinji Yamaoka

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Petroleum additive having excellent storage stability and heat stab...
- Patent number 5,895,777
- Issue date Apr 20, 1999
- Cosmo Research Institute
- Sanae Ueda
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing over-based alkaline earth metal phenate
- Patent number 5,292,968
- Issue date Mar 8, 1994
- Cosmo Research Institute
- Sanae Ueda
- C07 - ORGANIC CHEMISTRY