P

Inventor

YAMAMOTO YOSHIKAZU

JP90 patents
⚠️ This page may combine multiple inventors who share the name “YAMAMOTO YOSHIKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

12 patents
US7184377B2Feb 27, 2007

Multi-layered information recording medium, recording apparatus, and recording method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD188 citations99
US7170841B2Jan 30, 2007

Information recording medium, recording apparatus, reproduction apparatus, recording method, and reproduction method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD87 citations99
US7123556B2Oct 17, 2006

Multi-layered information recording medium with spare defect management areas

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD118 citations99
US7042825B2May 9, 2006

Information recording medium, recording apparatus, reproduction apparatus, recording method, reproduction method and defect management method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD121 citations99
US7423951B2Sep 9, 2008

Information recording medium, recording apparatus, reproduction apparatus, recording method, and reproduction method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD34 citations96
US7400571B2Jul 15, 2008

Information recording medium, recording apparatus, reproduction apparatus, recording method, and reproduction method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD34 citations96
US7376072B2May 20, 2008

Information recording medium, recording apparatus, reproduction apparatus, recording method, and reproduction method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD35 citations96
US7286455B2Oct 23, 2007

Information recording medium, recording apparatus, recording method and reproduction method utilizing test areas of respective layers provided at different radial positions

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD50 citations96
US7230907B2Jun 12, 2007

Information recording medium, recording apparatus, reproduction apparatus, recording method and reproduction method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD45 citations96
US7212480B2May 1, 2007

Information recording medium, recording apparatus, reproduction apparatus, recording method, and reproduction method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD51 citations96
US7178088B2Feb 13, 2007

Method and circuit for error correction, error correction encoding, data reproduction, or data recording

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations84
US6532513B1Mar 11, 2003

Information recording and reproduction apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations83

YAMAMOTO YOSHIKAZU

7 patents

PANASONIC CORP

6 patents

FUJITSU LTD

5 patents

SHARP KK

4 patents

BROTHER IND LTD

4 patents

YAZAKI CORP

3 patents

DAIWA KK

2 patents

NIPPON PAINT CO LTD

2 patents

FUJI XEROX CO LTD

2 patents

NIPPON PEROXIDE CO LTD

1 patent

KANSAI PAINT CO LTD

1 patent

IBM

1 patent

Showing the top 50 of 90 patents by PatentIndex Score.