Inventor

Kazuo Hasumi

Inventor

Kanagawa, JP

Overview

7→

Patents

1989–1994

Patent span

General tagging of new technological developments

Primary field (CPC Y)

Patents· 7 as inventor

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

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer24%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests24%

Y10TTechnical subjects covered by former us classification24%

C08LCompositions of macromolecular compounds10%

B01DSeparation5%

B08BCleaning in general5%

B29CShaping or joining of plastics5%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts5%

PatentTitleYear

5,351,354'Dust cleaner and dust cleaning method'1994 5,141,808'Magnetic recording medium having two magnetic layers each containing a specified polyurethane resin'1992 5,023,135'Magnetic recording medium which contains a binder of nitrogen containing vinyl chloride polymer and an amino group containing polyurethane'1991 5,008,147'Magnetic recording medium'1991 4,970,121'Magnetic recording medium'1990 4,919,856'Process for producing membranes for use in gas separation'1990 4,886,703'Magnetic recording medium'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1992Patents assigned to FUJI PHOTO FILM CO LTD (5)· patent assignee history

1989–1992Based in Kanagawa, JP· patent location history

1990Patents assigned to DAINIPPON INK & CHEMICALS (1)· patent assignee history

1990Based in Odawara, JP· patent location history

1994Patents assigned to SEIKO INSTR INC (1)· patent assignee history

1994Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FUJI PHOTO FILM CO LTD	5	1989–1992
DAINIPPON INK & CHEMICALS	1	1990
SEIKO INSTR INC	1	1994

Locations

Location	Patents	Span
Kanagawa, JP	5	1989–1992
Tokyo, JP	1	1994
Odawara, JP	1	1990