Inventor

HIDETA IKUHIRO

JP4 patents

⚠️ This page may combine multiple inventors who share the name “HIDETA IKUHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SONY CORP

3 patents

US7633045B2Dec 15, 2009

Optical device, method for producing master for use in producing optical device, and photoelectric conversion apparatus

SONY CORP15 citations90

US6975578B2Dec 13, 2005

Optical recording medium with grooves, optical recording medium master with grooves, apparatus for manufacturing optical recording medium master with grooves, and optical recording/reproducing apparatus

SONY CORP8 citations71

US6909681B2Jun 21, 2005

Optical disk and optical disk apparatus

SONY CORP3 citations59

ENDOH SOHMEI

1 patent

US8309903B2Nov 13, 2012

Optical device, method for producing master for use in producing optical device, and photoelectric conversion apparatus

ENDOH SOHMEI2 citations60