Inventor

Keisuke Kawashima

Inventor

Tokyo, JP

Overview

1976–2021

Patent span

Chemistry

Primary field (CPC C)

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

B60Cprimary

B60CVehicle tyres8%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds8%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients8%

C08LCompositions of macromolecular compounds8%

G07FCoin-freed or like apparatus8%

C07CAcyclic or carbocyclic compounds4%

C08CTreatment or chemical modification of rubbers4%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds4%

C08JWorking-up4%

C09DCoating compositions, e.g. paints, varnishes or lacquers4%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1983Based in Nagaokakyo, JP· patent location history

2015–2016Patents assigned to KAWASHIMA KEISUKE (2)· patent assignee history

2015Patents assigned to IO HIROFUMI (1)· patent assignee history

2015Based in Ichihara, JP· patent location history

2016–2017Patents assigned to BRIDGESTONE CORP (2)· patent assignee history

2016Based in Kodaira, JP· patent location history

2017–2018Patents assigned to ARUZE GAMING AMERICA INC (2)· patent assignee history

2017–2018Patents assigned to UNIVERSAL ENTERTAINMENT CORP (2)· patent assignee history

2017–2018Based in Tokyo, JP· patent location history

2021Based in Osaka-shi, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ARUZE GAMING AMERICA INC	2	2017–2018
BRIDGESTONE CORP	2	2016–2017
KAWASHIMA KEISUKEself	2	2015–2016
UNIVERSAL ENTERTAINMENT CORP	2	2017–2018
IO HIROFUMI	1	2015

Locations