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Inventor

Otsuro Wakamatsu

Inventor
Kyobashi, JP

Overview

1→
Patents
1989
Patent span
Physics
Primary field (CPC G)

Patents· 1 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G06Fprimary
G06FElectric digital data processing50%
G09BEducational or demonstration appliances50%
PatentTitleYear
4,853,495'Electronic blackboard and electronic blackboard system'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to SHIMIZU CONSTRUCTION CO LTD (1)· patent assignee history
1989Based in Kyobashi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHIMIZU CONSTRUCTION CO LTD11989
Locations
LocationPatentsSpan
Kyobashi, JP11989