Inventor

Yasuo Iida

Inventor

Tokyo, JP

Overview

5→

Patents

1979–2004

Patent span

Performing operations

Primary field (CPC B)

Patents· 5 as inventor

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

G03Fprimary

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices25%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry8%

B29CShaping or joining of plastics8%

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. inserts8%

B29LIndexing scheme associated with subclass b29c, relating to particular articles8%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds8%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds8%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients8%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h108%

Y10TTechnical subjects covered by former us classification8%

PatentTitleYear

6,727,508'Method and apparatus for irradiating active energy ray'2004 5,317,063'Water-soluble polymer sensitive to salt'1994 4,690,882'Positive acting resist material comprised of novoloc resin derived from phenylphenol'1987 4,356,223'Semiconductor device having a registration mark for use in an exposure technique for micro-fine working'1982 4,152,601'X-ray lithography mask and method for manufacturing the same'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1982Patents assigned to NIPPON ELECTRIC CO (2)· patent assignee history

1979Patents assigned to NIPPON TELEGRAPH & TELEPHONE (1)· patent assignee history

1979–2004Based in Tokyo, JP· patent location history

1987Patents assigned to NEC CORP (1)· patent assignee history

1994Patents assigned to LION CORP (1)· patent assignee history

1994Based in Yokohama, JP· patent location history

2004Patents assigned to TOYO INK MFG CO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON ELECTRIC CO	2	1979–1982
LION CORP	1	1994
NEC CORP	1	1987
NIPPON TELEGRAPH & TELEPHONE	1	1979
TOYO INK MFG CO	1	2004

Locations

Location	Patents	Span
Tokyo, JP	4	1979–2004
Yokohama, JP	1	1994