Inventor
Wataru Yamashita
Inventor
Kanagawa, JP
Overview
Patents· 25 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 bonds32%
C08LCompositions of macromolecular compounds13%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients8%
H05KPrinted circuits8%
C07CAcyclic or carbocyclic compounds7%
Y10TTechnical subjects covered by former us classification7%
C09DCoating compositions, e.g. paints, varnishes or lacquers5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form3%
C08JWorking-up3%
PatentTitleYear
9,752,030'Polyamic acid and polyimide, processes for the production of same, compositions containing same, and uses thereof'20179,540,487'Polyimide composite material and film thereof'20179,339,992'Low-thermal-expansion block polyimide, precursor thereof, and use thereof'20167,666,573'Positive photosensitive resin composition and method for forming pattern'20106,734,276'Polyimide and circuit substrate comprising the same'20046,710,160'Polyamic acid, polyimide, process for producing these, and film of the polyimide'20046,103,860'Fluorine-containing polyamide'20006,080,833'Low-birefringent organic optical component and a spirobiindan polymer'20005,990,261'Organic optical component'19995,916,488'Polyimide resin compositions for optical filters'19995,892,061'Process for preparing isoimides'19995,868,968'Polyimide resin compositions for optical filters'19995,763,537'Polyimide based resin composition'19985,719,256'Process for preparing polycondensation polymer compound'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'19955,371,168'Amorphous polyimide powder, preparation process of the powder, and heat-resistant adhesive and bonding method by use of the powder'19945,354,890'Aromatic diamine intermediates useful in the preparation of polyimides'19945,354,839'Polyimide and preparation process of same'19945,283,313'Readily processable polyimide, preparation process of polyimide, and resin composition of polyimide'19945,260,388'Polyimide and process for the preparation thereof'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–1998Patents assigned to MITSUI TOATSU CHEMICALS (13)· patent assignee history
1993–1999Based in Kanagawa, JP· patent location history
1998–2004Based in Fukuoka, JP· patent location history
1999–2017Patents assigned to MITSUI CHEMICALS INC (12)· patent assignee history
2010–2017Based in Ichihara, JP· patent location history
2016–2017Patents assigned to FUKUKAWA KENICHI (3)· patent assignee history
2016–2017Patents assigned to SAKATA YOSHIHIRO (3)· patent assignee history
2016–2017Patents assigned to YAMASHITA WATARU (3)· patent assignee history
2016Based in Sodegaura, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUI TOATSU CHEMICALS | 13 | 1993–1998 |
| MITSUI CHEMICALS INC | 12 | 1999–2017 |
| FUKUKAWA KENICHI | 3 | 2016–2017 |
| SAKATA YOSHIHIRO | 3 | 2016–2017 |
| YAMASHITA WATARUself | 3 | 2016–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 14 | 1993–1999 |
| Fukuoka, JP | 7 | 1998–2004 |
| Ichihara, JP | 3 | 2010–2017 |
| Sodegaura, JP | 1 | 2016 |