Inventor
Yuichi Okawa
Inventor
Kanagawa, JP
Overview
Patents· 24 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 bonds34%
C08LCompositions of macromolecular compounds15%
C07CAcyclic or carbocyclic compounds8%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds5%
C08JWorking-up3%
Y10TTechnical subjects covered by former us classification3%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry2%
B60QArrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general2%
PatentTitleYear
10,989,607Thermocouple20218,450,440'Method for purifying polymer and polymer'20138,216,766'Polymer, polymer preparation method, resist composition and patterning process'20128,211,984'Ring-opening metathesis polymer, hydrogenated product thereof, method for preparing the same, and use thereof'20128,143,429'Process for producing organic transition metal complex compound, metathesis catalyst produced by using the same, ring-opening metathesis polymer obtainable with the metathesis catalyst, and process for producing the polymer'20127,954,984'Interior lamp'20117,807,331'Hydrogenated ring-opening metathesis polymer, resist composition and patterning process'20107,794,915'Hydrogenated ring-opening metathesis polymer, resist composition comprising the same and patterning method'20107,345,135'Crosslinkable aromatic resin having protonic acid group, and ion conductive polymer membrane, binder and fuel cell using the resin'20087,081,501'Hydrogenated ring-opening metathesis polymer and process for producing the same'20066,531,568'Polyimide containing crosslinkable group and process for producing the same'20036,458,912'Crystalline polyimide for melt molding with satisfactory thermal stability'20025,821,319'Liquid crystal polyamide-imide copolymer'19985,508,377'Polyimide'19965,506,291'Polyimide resin composition having excellent fatigue resistance and injection molded article of same'19965,494,996'Polyimide resin composition'19965,484,880'Polyimide'19965,480,965'Readily soluble, amorphous polyimide, and preparation process of same'19965,470,943'Polyimide'19955,354,839'Polyimide and preparation process of same'19945,354,890'Aromatic diamine intermediates useful in the preparation of polyimides'19945,321,096'Polyimide composition'19945,276,133'Favorably processable polyimide and process for preparing polyimide'19945,260,388'Polyimide and process for the preparation thereof'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–1996Patents assigned to MITSUI TOATSU CHEMICALS (11)· patent assignee history
1993–2003Based in Kanagawa, JP· patent location history
1998–2013Patents assigned to MITSUI CHEMICALS INC (11)· patent assignee history
2006–2012Based in Sodegaura, JP· patent location history
2010–2012Patents assigned to SHINETSU CHEMICAL CO (3)· patent assignee history
2010–2013Based in Ichihara, JP· patent location history
2011–2021Based in Tokyo, JP· patent location history
2012–2013Patents assigned to OKAWA YUICHI (4)· patent assignee history
2012–2013Patents assigned to SUNAGA TADAHIRO (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUI CHEMICALS INC | 11 | 1998–2013 |
| MITSUI TOATSU CHEMICALS | 11 | 1993–1996 |
| OKAWA YUICHIself | 4 | 2012–2013 |
| SUNAGA TADAHIRO | 4 | 2012–2013 |
| SHINETSU CHEMICAL CO | 3 | 2010–2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 14 | 1993–2003 |
| Ichihara, JP | 4 | 2010–2013 |
| Sodegaura, JP | 4 | 2006–2012 |
| Tokyo, JP | 2 | 2011–2021 |