Tamotsu Iida

HM Hitachi Maxell: 2 patents #13 of 93Top 15%

HI Hitachi: 1 patents #1,316 of 3,771Top 35%

OC Olympus Optical Co.: 1 patents #52 of 261Top 20%

SC Sanyo Electric Co.: 1 patents #223 of 669Top 35%

Overall (2004): #39,443 of 270,089Top 15%

Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6760290	Optical disc and optical disc drive	Yoshiro Yoda, Kazuo Ito	2004-07-06
RE38503	Information recording disk	Shinichi Arai, Takeshi Maeda	2004-04-20