YI

Yasu Ishii

JC Japan Pionics Co.: 1 patents #48 of 76Top 65%
Overall (All Time): #3,716,623 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5632964 Cleaning method for exhaust gas containing ammonia and silane Noboru Akita 1997-05-27