Inventor

AKUTAGAWA TADAMASA

JP2 patents

Patents

2 patents

US5485744AJan 23, 1996

Sulfuric acid concentration sensor for lead storage battery

AKUTAGAWA TADAMASA12 citations67

US5750285AMay 12, 1998

Life indicator and lead-acid storage battery with life indicator

AKUTAGAWA TADAMASA6 citations56