Inventor

Etsuo Fujita

Inventor

Hirakata, JP

Overview

2003–2020

Patent span

Performing operations

Primary field (CPC B)

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

E02Fprimary

E02FDredging19%

C22CAlloys10%

G01CMeasuring distances, levels or bearings7%

H04NPictorial communication, e.g. television7%

B21JForging5%

B21KMaking forged or pressed metal products, e.g. horse-shoes, rivets, bolts or wheels5%

C21DModifying the physical structure of ferrous metals5%

B21BRolling of metal3%

B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material3%

B21HMaking particular metal objects by rolling, e.g. screws, wheels, rings, barrels, balls3%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

2003–2018Patents assigned to HITACHI METALS LTD (7)· patent assignee history

2003–2018Based in Yasugi, JP· patent location history

2009Based in Meerbusch, DE· patent location history

2011Based in Annaka, JP· patent location history

2013–2020Patents assigned to KOMATSU MFG CO LTD (11)· patent assignee history

2013–2017Patents assigned to FUJITA ETSUO (5)· patent assignee history

2013–2016Patents assigned to ANDO MASAO (4)· patent assignee history

2013–2016Patents assigned to FUKANO RYO (3)· patent assignee history

2013–2019Based in Hirakata, JP· patent location history

2019–2020Based in Tokyo, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations