Inventor

Koyu Hasegawa

Inventor
Tokyo, JP

Overview

4→
Patents
2006–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

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

F27Dprimary
F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace17%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1017%
C21DModifying the physical structure of ferrous metals11%
F27BFurnaces, kilns, ovens or retorts in general11%
H01LSemiconductor devices11%
B21BRolling of metal6%
B22DCasting of metals6%
C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel6%
C22CAlloys6%
C23CCoating metallic material6%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2006–2019Patents assigned to TOKYO ELECTRON LTD (3)· patent assignee history
2006Based in Shiroyama, JP· patent location history
2018Based in Oshu, JP· patent location history
2019Based in Iwate, JP· patent location history
2021Patents assigned to JFE STEEL CORP (1)· patent assignee history
2021Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOKYO ELECTRON LTD32006–2019
JFE STEEL CORP12021
Locations
LocationPatentsSpan
Tokyo, JP12021
Iwate, JP12019
Oshu, JP12018
Shiroyama, JP12006