Inventor
Kenji Tsukanishi
Inventor
Shimodate, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H05Kprimary
H05KPrinted circuits25%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds19%
Y10TTechnical subjects covered by former us classification19%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form6%
C08JWorking-up6%
C08LCompositions of macromolecular compounds6%
C09DCoating compositions, e.g. paints, varnishes or lacquers6%
H01QAntennas, i.e. radio aerials6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
PatentTitleYear
4,751,136'Substrate for high-frequency circuit and process for making the same'19884,400,438'Process for producing fire retardant and heat resistant copper-clad laminated board, and varnish therefor'19834,393,188'Thermosetting prepolymer from polyfunctional maleimide and bis maleimide'19834,346,206'Imide prepolymer from reaction of epoxy compound with bis-imide/diamine reaction mixture'19824,283,522'Process for preparing thermosetting prepolymer from mixture of polyfunctional maleimide and bis-maleimide'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1988Patents assigned to HITACHI CHEMICAL CO LTD (5)· patent assignee history
1981–1988Based in Shimodate, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI CHEMICAL CO LTD | 5 | 1981–1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Shimodate, JP | 5 | 1981–1988 |