Katsuhiko Tsumori

FL Fujitsu Ten Limited: 2 patents #7 of 64Top 15%

TD Time Domain: 2 patents #9 of 32Top 30%

Overall (2004): #55,659 of 270,089Top 25%

Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6751330	Speaker system	Hiroshi Kowaki, Akira Nishikawa, Hiroyuki Yoshii	2004-06-15
6724909	Speaker apparatus	Akira Nishikawa, Hiroshi Kowaki, Hiroyuki Yoshii	2004-04-20