Inventor

Akira Yoshitake

Inventor

Osaka, JP

Overview

1990–2020

Patent span

Chemistry

Primary field (CPC C)

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

C22Cprimary

C22CAlloys11%

H01LSemiconductor devices11%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form6%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds6%

C08JWorking-up6%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients6%

C08LCompositions of macromolecular compounds6%

D21FPaper-making machines6%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems6%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1990–1993Patents assigned to KUBOTA LTD (2)· patent assignee history

1990Patents assigned to KUBOTA KK (1)· patent assignee history

1990Based in Hirakata, JP· patent location history

1993–2020Based in Osaka, JP· patent location history

2003Patents assigned to SONY CORP (1)· patent assignee history

2003Based in Kanagawa, JP· patent location history

2017Patents assigned to BRIDGESTONE CORP (1)· patent assignee history

2017Based in Yokohama, JP· patent location history

2020Patents assigned to PANASONIC IP MAN CO LTD (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Locations