Kazutaka Yamamoto

Ricoh Company: 2 patents #128 of 684Top 20%

Overall (2003): #57,722 of 273,478Top 25%

Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6661755	Optical disc apparatus	—	2003-12-09
6570832	Optical disc apparatus	—	2003-05-27