Inventor

Fumio Rokkaku

Inventor
Hamamatsu, JP

Overview

3→
Patents
1991–1993
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

G10Hprimary
G10HElectrophonic musical instruments60%
A63HToys, e.g. tops, dolls, hoops or building blocks20%
G11BInformation storage based on relative movement between record carrier and transducer20%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1993Patents assigned to ROLAND CORP (3)· patent assignee history
1991–1993Based in Hamamatsu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ROLAND CORP31991–1993
Locations
LocationPatentsSpan
Hamamatsu, JP31991–1993