Inventor
Yasuji Ohtsuka
Inventor
Tokyo, JP
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B29Cprimary
B29CShaping or joining of plastics14%
B29DProducing particular articles from plastics or from substances in a plastic state14%
C07KPeptides14%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds14%
C08JWorking-up14%
G02BOptical elements, systems or apparatus14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
PatentTitleYear
5,122,600'DNA-immobilized microspheres and a process for purifying a DNA-transcription-controlling factor using the same'19924,521,351'Process for producing light-transmitting element of synthetic resin'19853,955,015'Method of manufacturing a transparent light conducting element of synthetic resin having refractive index gradient'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976Patents assigned to NIPPON SELFOC CO LTD (1)· patent assignee history
1976–1992Based in Tokyo, JP· patent location history
1985Patents assigned to NIPPON SHEET GLASS CO LTD (1)· patent assignee history
1992Patents assigned to NIPPON ZEON CO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON SELFOC CO LTD | 1 | 1976 |
| NIPPON SHEET GLASS CO LTD | 1 | 1985 |
| NIPPON ZEON CO | 1 | 1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 3 | 1976–1992 |