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Inventor

Koo Honjoo

Inventor
Ibaraki, JP

Overview

2→
Patents
1989–1997
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 2 as inventor

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

Y10Tprimary
Y10TTechnical subjects covered by former us classification33%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds17%
G11BInformation storage based on relative movement between record carrier and transducer17%
H01BCables17%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
PatentTitleYear
5,656,350'Coil impregnant of epoxy resin from polyhydric phenol mixture'19974,828,924'Magnetic recording medium'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to HITACHI MAXELL (1)· patent assignee history
1989Based in Ibaragi, JP· patent location history
1997Patents assigned to HITACHI LTD (1)· patent assignee history
1997Based in Ibaraki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD11997
HITACHI MAXELL11989
Locations
LocationPatentsSpan
Ibaraki, JP11997
Ibaragi, JP11989