Inventor
MOTOKAWA MASAAKI
JP7 patents
⚠️ This page may combine multiple inventors who share the name “MOTOKAWA MASAAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PIONEER ELECTRONIC CORP
6 patentsUS5827593AOct 27, 1998
Disc substrate used for an optical disc and a molding die for molding the same
PIONEER ELECTRONIC CORP56 citations95
US6136133AOct 24, 2000
Method of producing optical disc of bonded type
PIONEER ELECTRONIC CORP42 citations91
US5820961AOct 13, 1998
Laminated optical discs
PIONEER ELECTRONIC CORP31 citations91
US5759332AJun 2, 1998
Process of reproducing optical discs and optical discs produced by the same
PIONEER ELECTRONIC CORP49 citations89
US6132545AOct 17, 2000
Method of producing an optical video disc
PIONEER ELECTRONIC CORP15 citations73
US6527904B1Mar 4, 2003
Method of producing an optical video disc
PIONEER ELECTRONIC CORP4 citations60