Inventor

Tatsuya Okumura

Inventor

Kani, JP

Overview

1992–2020

Patent span

Chemistry

Primary field (CPC C)

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

G01Nprimary

G01NInvestigating or analysing materials by determining their chemical or physical properties28%

C11DDetergent compositions17%

H05KPrinted circuits17%

C23GCleaning or de-greasing of metallic material by chemical methods other than electrolysis11%

B23PMetal-working not otherwise provided for6%

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

G01CMeasuring distances, levels or bearings6%

H01RElectrically-conductive connections6%

Y10TTechnical subjects covered by former us classification6%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1992–2000Patents assigned to ARAKAWA CHEM IND (4)· patent assignee history

1992–1994Based in Osaka, JP· patent location history

1997–2020Patents assigned to NGK SPARK PLUG CO (6)· patent assignee history

2000Based in Tsukuba, JP· patent location history

2008–2020Based in Kani, JP· patent location history

2008–2010Based in Gifu, JP· patent location history

2009Patents assigned to DENSO CORP (1)· patent assignee history

2009Based in Anjo, JP· patent location history

2015Patents assigned to ASAI MASAHIRO (1)· patent assignee history

2015Patents assigned to KATO HIDEKAZU (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Locations