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Inventor

Nobuaki Koyama

Inventor
Yokohama, JP

Overview

3→
Patents
1979–2017
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H05Kprimary
H05KPrinted circuits33%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form17%
C07CAcyclic or carbocyclic compounds17%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds17%
Y10TTechnical subjects covered by former us classification17%
PatentTitleYear
9,538,648'Liquid composition and metal-based circuit board'20178,535,809'Electrical insulating resin composition, and laminate for circuit board'20134,136,079'Urea compound having carboxylate radical and method for producing the same'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–2017Patents assigned to NHK SPRING CO LTD (3)· patent assignee history
1979–2017Based in Yokohama, JP· patent location history
2013–2017Patents assigned to KOYAMA NOBUAKI (2)· patent assignee history
2013Patents assigned to ITOU TOMOYUKI (1)· patent assignee history
2013Patents assigned to KOMURASAKI HIDETO (1)· patent assignee history
2013Based in Kanagawa, JP· patent location history
2017Patents assigned to KONDO TAKESHI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NHK SPRING CO LTD31979–2017
KOYAMA NOBUAKIself22013–2017
ITOU TOMOYUKI12013
KOMURASAKI HIDETO12013
KONDO TAKESHI12017
Locations
LocationPatentsSpan
Yokohama, JP21979–2017
Kanagawa, JP12013