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Inventor

Takashi Yoneyama

Inventor
Tokyo, JP

Overview

2→
Patents
2006–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds33%
E21BEarth or rock drilling33%
F16LPipes33%
PatentTitleYear
10,900,595Threaded joint for oil well tubing20217,132,561'Process for producing fluorinated dicyanobenzene'2006

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2006Patents assigned to SHOWA DENKO KK (1)· patent assignee history
2006Based in Fukushima, 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
JFE STEEL CORP12021
SHOWA DENKO KK12006
Locations
LocationPatentsSpan
Tokyo, JP12021
Fukushima, JP12006