Sadao Otsuka

Follow

Person

Nagareyame, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Oxygen absorbent packet
- Patent number 4,579,223
- Issue date Apr 1, 1986
- Mitsubishi Gas Chemical Company Inc.
- Sadao Otsuka
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL