Shigeru Tasaka

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of producing polymeric electret element
- Patent number 4,591,465
- Issue date May 27, 1986
- Mitsubishi Petrochemical Co., Ltd.
- Seizo Miyata
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...