LexDanaLexDanabeta
Inventor

Teruo Chiba

Inventor
Miyagi, JP

Overview

3→
Patents
1987–2003
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.

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer60%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
Y10TTechnical subjects covered by former us classification20%
PatentTitleYear
6,631,106'Spare area with a predetermined capacity for a detective sector allocated in each zone'20035,667,862'Magneto-optical disk'19974,646,188'VTR tape cassette'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2003Patents assigned to SONY CORP (3)· patent assignee history
1987–2003Based in Miyagi, JP· patent location history
2003Patents assigned to FUJITSU LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SONY CORP31987–2003
FUJITSU LTD12003
Locations
LocationPatentsSpan
Miyagi, JP31987–2003