Inventor
Toshihiro Ohnishi
Inventor
Tsukuba, JP
Overview
Patents· 28 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Gprimary
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds16%
C09KMaterials for miscellaneous applications, not provided for elsewhere15%
H05BElectric heating11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
H10KOrganic electric solid-state devices7%
H01BCables6%
G02BOptical elements, systems or apparatus5%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein5%
Y10TTechnical subjects covered by former us classification5%
C08JWorking-up4%
PatentTitleYear
7,033,680'Electroluminescent element'20066,841,269'Hole transporting polymer and organic electroluminescence device using the same'20056,720,091'Polymeric fluorescent substance, polymeric fluorescent substance and polymer light-emitting device using the same'20046,544,670'Hole transporting polymer and organic electroluminescence device using the same'20036,403,236'Polymer light emitting device'20026,207,301'Polymer fluorescent substance and organic electroluminescence device'20015,980,781'Polymeric fluorescent substance and organic electroluminescence device'19995,875,014'Optically anisotropic film and liquid crystal display apparatus'19995,821,002'Polymeric fluorescent substance, production process thereof and organic electrolumescence device'19985,759,709'Polymeric fluorescent substance and organic electroluminescence device'19985,736,066'Optically anisotropic film'19985,730,899'Optically anisotropic film'19985,726,457'Organic electroluminescence device'19985,693,253'Optically anisotropic material, process for producing it, and retardation plate and liquid crystal device using same'19975,688,436'Optically anisotropic material, process for producing it, and retardation plate and liquid crystal display device using same'19975,601,884'Retardation film and production thereof'19975,589,320'Polymeric fluorescent substance and organic electroluminescence devices using the same'19965,543,079'Polymeric fluorescent substance and organic electroluminescence devices using the same'19965,424,150'Polymeric solid electrolyte'19955,317,169'Organic electroluminescence device'19945,064,572'Poly (long-chain nuclear substituted phenylene vinylene), precursor therefor and highly conductive composition thereof'19915,053,166'Hetero-arylene vinylene polymer and highly conductive composition thereof'19914,868,284'Process for producing stretched molded articles of conjugated polymers and highly conductive compositions of said polymers'19894,791,177'Conjugated polymer film and pyrolyzed product thereof'19884,626,588'Conjugated polymer film and pyrolyzed product thereof'19864,599,193'Highly electroconductive pyrolyzed product retaining its original shape and composition formed therefrom'19864,528,118'Highly electroconductive conjugated polymer composition and process for producing the same'19854,438,262'Highly dielectric polysaccharides'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–2005Patents assigned to SUMITOMO CHEMICAL CO (20)· patent assignee history
1984–1988Based in Takatsuki, JP· patent location history
1985–1991Patents assigned to AGENCY IND SCIENCE TECHN (7)· patent assignee history
1989–1991Based in Itami, JP· patent location history
1994–2004Based in Tsukuba, JP· patent location history
1999–2003Based in Ibaraki, JP· patent location history
2006Patents assigned to NAT INST OF ADVANCED IND SCIEN (1)· patent assignee history
2006Based in Nakano-ku, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SUMITOMO CHEMICAL CO | 20 | 1984–2005 |
| AGENCY IND SCIENCE TECHN | 7 | 1985–1991 |
| NAT INST OF ADVANCED IND SCIEN | 1 | 2006 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tsukuba, JP | 15 | 1994–2004 |
| Takatsuki, JP | 5 | 1984–1988 |
| Ibaraki, JP | 3 | 1999–2003 |
| Itami, JP | 3 | 1989–1991 |
| Nakano-ku, JP | 1 | 2006 |