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Inventor

Keiichi Fujie

Inventor
Sakuragawa, JP

Overview

1→
Patents
2018
Patent span
Chemistry
Primary field (CPC C)

Patents· 1 as inventor

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

C21Dprimary
C21DModifying the physical structure of ferrous metals33%
C22CAlloys33%
F16FSprings33%
PatentTitleYear
10,041,160Steel for spring, and method for producing spring2018

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2018Patents assigned to JFE STEEL CORP (1)· patent assignee history
2018Patents assigned to NHK SPRING CO LTD (1)· patent assignee history
2018Patents assigned to SUMIHATSU CO LTD (1)· patent assignee history
2018Based in Sakuragawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
JFE STEEL CORP12018
NHK SPRING CO LTD12018
SUMIHATSU CO LTD12018
Locations
LocationPatentsSpan
Sakuragawa, JP12018