Inventor

KARAKAWA YUJI

JP6 patents

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

FUJITSU LTD

4 patents

US6671240B2Dec 30, 2003

Defective region processing apparatus, defective region processing method, and information storage device

FUJITSU LTD2 citations60

US6870803B2Mar 22, 2005

Information storage apparatus and information reproducing method for reducing cross talk from a region adjacent a recorded information mark

FUJITSU LTD0 citations49

US6765849B2Jul 20, 2004

Method and apparatus for reproducing data from a recording medium using light beam with adjustable power

FUJITSU LTD1 citations49

US7397737B2Jul 8, 2008

Output adjustment method for lens position sensor of optical disk device and optical disk device thereof

FUJITSU LTD0 citations39

TOSHIBA KK

2 patents

US10684952B2Jun 16, 2020

Disk device and disk device control method

TOSHIBA KK2 citations66

US9053746B2Jun 9, 2015

Disk device and data recording method

TOSHIBA KK0 citations49