Inventor

YOSHIWARA TETSUO

JP2 patents

Patents

2 patents

US6921087B2Jul 26, 2005

Sealing mechanism for vessel and cap to be used in the mechanism

NIPPON TANSAN GAS CO LTD77 citations94

US6694709B2Feb 24, 2004

Apparatus to charge and seal in contents

NIPPON TANSAN GAS CO LTD14 citations81