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Inventor

Akiko Nagahara

Inventor
Saitama, JP

Overview

47→
Patents
1998–2021
Patent span
Physics
Primary field (CPC G)

Patents· 47 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus85%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them7%
H04NPictorial communication, e.g. television7%
PatentTitleYear
10,948,699Imaging optical system, projection type display device, and imaging apparatus202110,895,717Imaging optical system, projection display device, and imaging apparatus202110,527,828Zoom lens, projection display device, and imaging apparatus for forming an intermediate image202010,416,422Zoom lens, projection display device, and imaging apparatus for forming an intermediate image201910,324,278Zoom lens, projection display device, and imaging apparatus201910,295,804Zoom lens, projection display device, and imaging apparatus that forms an intermediate image at a postion conjugate to a reduction side imaging plane and causes the intermediate image to be re-imaged on a magnification side imaging plane201910,151,906Imaging optical system, projection-type display apparatus, and imaging apparatus201810,101,641Zoom lens, projection display device, and imaging apparatus20189,739,989'Projection zoom lens and projection type display device'20179,739,985'Projection lens and projection display apparatus'20179,664,884'Projection zoom lens and projection type display device'20179,557,537'Zoom lens for projection and projection-type display apparatus'20179,383,560'Zoom lens for projection and projection-type display apparatus'20169,250,427'Projection lens and projection display apparatus'20169,195,034'Lens for projection and projection-type display apparatus'20159,069,157'Projection zoom lens and projection apparatus'20158,976,454'Variable-magnification projection optical system and projection display device'20158,976,455'Variable-magnification projection optical system and projection display device'20158,922,903'Projection zoom lens and projection type display device'20148,896,929'Projection zoom lens and projection type display device'20148,693,105'Variable magnification optical system for projection and projection-type display apparatus'20148,390,935'Projection zoom lens and projection display device'20138,379,316'Zoom lens for projection and projection-type display apparatus'20138,270,092'Zoom lens for projection and projection-type display apparatus'20127,889,431'Projection zoom lens and projection-type display apparatus'20117,672,062'Projection zoom lens and projection type display device'20107,605,985'Projection zoom lens and projection type display device'20097,522,348'Zoom lens and projection display device using the same'20097,280,285'Projection lens and projection display device using the same'20076,989,940'Zoom lens and projection display device which uses same'20066,809,877'Zoom lens and projection display device using the same'20046,801,367'Zoom lens and projection display device which uses same'20046,768,595'Five-group zoom lens and projection display device including it'20046,639,738'Imaging lens'20036,580,564'Wide-angle zoom lens and projection-type display unit using it'20036,542,311'Zoom lens and projection type display apparatus using the same'20036,301,058'Wide-angle lens'20016,222,680'Zoom lens'20016,204,976'Zoom lens'20016,104,553'Image-forming lens'20006,075,658'Imaging lens'20006,043,941'Image-forming lens having four lens elements'20006,011,660'Imaging lens'20005,999,338'Imaging lens'19995,966,251'Imaging lens'19995,933,286'Image forming lens'19995,835,288'Imaging lens'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2004Patents assigned to FUJI PHOTO OPTICAL CO LTD (17)· patent assignee history
1998–2000Based in Omiya, JP· patent location history
1999–2007Based in Koshigaya, JP· patent location history
2003–2021Based in Saitama, JP· patent location history
2006–2011Patents assigned to FUJINON CORP (5)· patent assignee history
2012–2021Patents assigned to FUJIFILM CORP (24)· patent assignee history
2012–2014Patents assigned to NAGAHARA AKIKO (4)· patent assignee history
2012–2014Patents assigned to NAGATOSHI YUKIKO (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJIFILM CORP242012–2021
FUJI PHOTO OPTICAL CO LTD171998–2004
FUJINON CORP52006–2011
NAGAHARA AKIKOself42012–2014
NAGATOSHI YUKIKO22012–2014
Locations
LocationPatentsSpan
Saitama, JP302003–2021
Koshigaya, JP141999–2007
Omiya, JP31998–2000