Inventor
Nobuyuki Toyoshima
Inventor
Nagoya, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Fprimary
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds37%
G02BOptical elements, systems or apparatus37%
A61FFilters implantable into blood vessels5%
A61LMethods or apparatus for sterilising materials or objects in general5%
B29DProducing particular articles from plastics or from substances in a plastic state5%
C08JWorking-up5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
PatentTitleYear
5,391,591'Oxygen permeable hard contact lens materials comprising a fluoroalkyl(silicon-containing alkyl) fumarate copolymer'19955,250,583'Ocular lens material'19934,954,586'Soft ocular lens material'19904,920,180'Highly water-absorptive ocular lens material'19904,829,126'High water-absorptive soft contact lens'19894,745,158'Highly water-absorptive optical material'19884,451,629'Contact lens and process for preparing the same'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–1989Patents assigned to TOYO CONTACT LENS CO LTD (3)· patent assignee history
1984–1995Based in Nagoya, JP· patent location history
1990–1995Patents assigned to MENICON CO LTD (4)· patent assignee history
1990–1995Patents assigned to SHINETSU CHEMICAL CO (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MENICON CO LTD | 4 | 1990–1995 |
| SHINETSU CHEMICAL CO | 3 | 1990–1995 |
| TOYO CONTACT LENS CO LTD | 3 | 1984–1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Nagoya, JP | 7 | 1984–1995 |