Inventor

HISASUE KOJI

JP3 patents

Patents

3 patents

US5305114AApr 19, 1994

Electronic blackboard apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD43 citations88

US6575589B2Jun 10, 2003

Pen holder for interactive board

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations55

US6774891B2Aug 10, 2004

Transcription system

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations46