P
PatentIndex
Search
Landscape
Sign in
Inventor
NAGASAWA MASAYA
JP
2 patents
Patents
2 patents
US6934012B2
Aug 23, 2005
Ranging apparatus, ranging method, and opto-electric conversion circuit
NIKON CORP
22 citations
88
US6016297A
Jan 18, 2000
Information reproduction method and apparatus that move light beam toward outer perimeter of optical disk in response to tracking error
NIKON CORP
10 citations
70