Inventor

Koichi Matsushita

Inventor
Chiba, JP

Overview

23→
Patents
1987–2020
Patent span
Chemistry
Primary field (CPC C)

Patents· 23 as inventor

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

G03Fprimary
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices14%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry10%
C10GCracking hydrocarbon oils6%
F16CShafts6%
H03FAmplifiers6%
H03GControl of amplification6%
C01BNon-metallic elements4%
C07CAcyclic or carbocyclic compounds4%
C21BManufacture of iron or steel4%
F27BFurnaces, kilns, ovens or retorts in general4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1991Patents assigned to CANON KK (10)· patent assignee history
1987–1991Based in Chiba, JP· patent location history
2001–2020Based in Tokyo, JP· patent location history
2002–2008Patents assigned to JAPAN ENERGY CORP (2)· patent assignee history
2004–2007Patents assigned to HITACHI COMM SYSTEMS INC (3)· patent assignee history
2004–2007Based in Komoro, JP· patent location history
2008–2020Patents assigned to HOGY MEDICAL CO LTD (2)· patent assignee history
2008–2014Based in Toda, JP· patent location history
2013–2014Patents assigned to JX NIPPON OIL & ENERGY CORP (2)· patent assignee history
2019Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CANON KK101987–1991
HITACHI COMM SYSTEMS INC32004–2007
HOGY MEDICAL CO LTD22008–2020
JAPAN ENERGY CORP22002–2008
JX NIPPON OIL & ENERGY CORP22013–2014
Locations
LocationPatentsSpan
Chiba, JP101987–1991
Tokyo, JP42001–2020
Toda, JP32008–2014
Komoro, JP32004–2007
Yokohama, JP12019