Inventor
Junichiro Kudo
Inventor
Miyagi, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Sprimary
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests28%
B29CShaping or joining of plastics22%
G11BInformation storage based on relative movement between record carrier and transducer22%
B29DProducing particular articles from plastics or from substances in a plastic state11%
B29LIndexing scheme associated with subclass b29c, relating to particular articles6%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds6%
Y10TTechnical subjects covered by former us classification6%
PatentTitleYear
5,552,098'Method for fabrication of disc substrate'19965,427,520'Mold device for fabricating disc substrate'19955,326,240'Metal mold device for molding a disc substrate'19944,879,082'Method for molding plastic material into disk shaped sabstrate for an optical information record carrier'19894,798,767'Optical information record medium'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–1996Patents assigned to SONY CORP (5)· patent assignee history
1989–1996Based in Miyagi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SONY CORP | 5 | 1989–1996 |
Locations
| Location | Patents | Span |
|---|---|---|
| Miyagi, JP | 5 | 1989–1996 |