Inventor
Seiki Shimazu
Inventor
Tokyo, JP
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B29Cprimary
B29CShaping or joining of plastics40%
G11BInformation storage based on relative movement between record carrier and transducer40%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
PatentTitleYear
5,648,105'Apparatus for making a plurality of optical record disc subtrates'19975,458,821'Method of making a plurality of optical record disc substrates'19954,382,523'Tape cover of magnetic tape cassette and process for preparing tape cover'19834,382,522'Tape cover of magnetic tape cassette and process for preparing tape cover'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983Patents assigned to TDK ELECTRONICS CO LTD (2)· patent assignee history
1983–1997Based in Tokyo, JP· patent location history
1995–1997Patents assigned to TDK CORP (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TDK CORP | 2 | 1995–1997 |
| TDK ELECTRONICS CO LTD | 2 | 1983 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 4 | 1983–1997 |