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Inventor

Kazumi Kokaji

Inventor
Hitachi, JP

Overview

3→
Patents
2003–2007
Patent span
Textiles
Primary field (CPC D)

Patents· 3 as inventor

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

B82Yprimary
B82YSpecific uses or applications of nanostructures20%
D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons20%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons20%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
Y10TTechnical subjects covered by former us classification20%
PatentTitleYear
7,273,652'Hollow carbon fiber and production method'20076,743,500'Hollow carbon fiber and production method'20046,641,792'Hollow carbon fiber and production method'2003

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003–2007Patents assigned to HITACHI CHEMICAL CO LTD (3)· patent assignee history
2003–2007Based in Hitachi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI CHEMICAL CO LTD32003–2007
Locations
LocationPatentsSpan
Hitachi, JP32003–2007