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Inventor

Yukihiro Ohsugi

Inventor
Chiba, JP

Overview

3→
Patents
1986–1992
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

C10Cprimary
C10CWorking-up pitch, asphalt, bitumen, tar67%
G03GElectrography33%
PatentTitleYear
5,115,279'Fixing device'19924,758,326'Method of producing precursor pitches for carbon fibers'19884,589,975'Method of producing a precursor pitch for carbon fiber'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–1988Patents assigned to KAWASAKI STEEL CO (2)· patent assignee history
1986–1988Patents assigned to NITTO BOSEKI CO LTD (2)· patent assignee history
1986Patents assigned to KAMISHITA MAMORU (1)· patent assignee history
1986Patents assigned to NAGASAWA KEN (1)· patent assignee history
1986–1988Based in Chiba, JP· patent location history
1992Patents assigned to TOKYO ELECTRIC CO LTD (1)· patent assignee history
1992Based in Shizuoka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KAWASAKI STEEL CO21986–1988
NITTO BOSEKI CO LTD21986–1988
KAMISHITA MAMORU11986
NAGASAWA KEN11986
TOKYO ELECTRIC CO LTD11992
Locations
LocationPatentsSpan
Chiba, JP21986–1988
Shizuoka, JP11992