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Inventor

Syunji Usui

Inventor
Fukushima, JP

Overview

3→
Patents
2007–2009
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%
G10HElectrophonic musical instruments40%
PatentTitleYear
7,489,599'Optical disc reproducing apparatus'20097,408,854'Optical disc reproducing apparatus and method'20087,218,578'Reproducing apparatus, operating apparatus for reproducing and reproducing method therefor'2007

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2007–2009Patents assigned to D & M HOLDINGS INC (3)· patent assignee history
2007–2009Based in Fukushima, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
D & M HOLDINGS INC32007–2009
Locations
LocationPatentsSpan
Fukushima, JP32007–2009