KH

Kouji Hirayanagi

NE Nec: 1 patents #469 of 1,934Top 25%
Overall (2002): #77,722 of 266,432Top 30%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6445804 Ultra-directional speaker system and speaker system drive method — 2002-09-03