RS

Ryouji Sato

HI Hitachi: 1 patents #856 of 3,149Top 30%
Overall (1994): #71,748 of 165,921Top 45%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5343713 Active noise control apparatus for three-dimensional space Shinya Okabe, Shinichi Shimode, Masamichi Hanada, Takao Senshu, Hirokiyo Terada +3 more 1994-09-06