Inventor

ASAHINA TAKAYUKI

JP5 patents

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

SONY CORP

2 patents

US5495456AFeb 27, 1996

Magneto-optical recording and reproducing apparatus having a laser driving circuit which superimposes a signal having a frequency at least double the maximum recording signal frequency

SONY CORP22 citations89

US7911929B2Mar 22, 2011

Optical disk read only memory

SONY CORP0 citations40

SONY DISC TECHNOLOGY INC

1 patent

US6541748B1Apr 1, 2003

Optical disk checkup/measuring apparatus

SONY DISC TECHNOLOGY INC2 citations57

SONY DISC & DIGITAL SOLUTIONS

1 patent

US7969855B2Jun 28, 2011

Read-only optical disc medium and method of fabricating the same

SONY DISC & DIGITAL SOLUTIONS0 citations46

SAKAMOTO TETSUHIRO

1 patent

US8634287B2Jan 21, 2014

Method for manufacturing read-only optical disc medium and read-only optical disc medium

SAKAMOTO TETSUHIRO0 citations38