Inventor
WAKAMATSU SYUJI
JP4 patents
Patents
4 patentsUS4667814AMay 26, 1987
Oxygen absorbent packet
MITSUBISHI GAS CHEMICAL CO57 citations94
US5019212AMay 28, 1991
Method for producing gas-permeable parcelling film
MITSUBISHI GAS CHEMICAL CO39 citations92
US4762722AAug 9, 1988
Sealed package of raw meat or fish and method of preserving raw meat or fish
MITSUBISHI GAS CHEMICAL CO60 citations91
US4897273AJan 30, 1990
Package with freshness keeping agent sack
MITSUBISHI GAS CHEMICAL CO42 citations85