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Inventor

Yasuji Ogata

Inventor
Tokyo, JP

Overview

37→
Patents
1987–2019
Patent span
Physics
Primary field (CPC G)

Patents· 37 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus74%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them16%
H04NPictorial communication, e.g. television8%
G01CMeasuring distances, levels or bearings2%
PatentTitleYear
10,409,032Converter lens device and photographing system including the same201910,107,992Telephoto lens and image pickup apparatus using the same20189,904,030'Teleconverter, and imaging system comprising the same'20189,885,852'Converter lens device and photographing system including the same'20189,563,106'Teleconverter mounted on a master lens apparatus to obtain a lens system having a focal length longer than that of the master lens apparatus, and imaging system comprising the same'20179,507,133'Zoom lens'20169,507,131'Teleconverter and image pickup system using the same'20169,459,433'Zoom lens and zoom lens apparatus using the same'20169,261,682'Zoom lens'20169,075,291'Teleconverter, and imaging system comprising the same'20158,988,783'Zoom lens and image pickup apparatus equipped with same'20158,767,310'Zoom lens, and imaging apparatus incorporating the same'20148,711,489'Zoom lens'20148,654,448'Inner focus lens system and image pickup apparatus using the same'20148,582,212'Zoom lens, and imaging apparatus incorporating the same'20137,215,481'Taking lens, and imaging device incorporating the same'20076,122,080'Finder equipped with an indicator'20006,097,547'Front converter lens system using a diffractive surface'20006,069,743'Zoom lens system'20006,034,819'Diffractive optical element both surfaces of which comprise diffractive surfaces'20005,982,544'Zoom lens system having a diffractive surface'19995,949,577'Lens system including a diffractive optical element'19995,877,850'Distance measuring apparatus'19995,684,638'Two-unit zoom lens system having high zoom ratio'19975,666,233'Two-unit zoom lens system having a high zoom ratio'19975,663,836'Compact zoom lens system comprising two lens units'19975,640,276'Four-unit zoom lens system having a high zoom ratio'19975,546,236'Wide-angle photographic lens system'19965,459,616'Two-unit zoom lens system'19955,353,160'Three-unit compact zoom lens system'19945,339,195'Two unit zoom lens system'19945,069,536'Zoom lens system'19914,836,662'Telephoto zoom lens system'19894,815,829'Telephoto zoom lens system'19894,789,226'Zoom lens system'19884,786,153'Large-aperture macro lens system'19884,708,443'Zoom lens system'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2000Patents assigned to OLYMPUS OPTICAL CO (21)· patent assignee history
1987–2018Based in Tokyo, JP· patent location history
1996–2000Based in Hachioji, JP· patent location history
1997Based in Akikawa, JP· patent location history
1999–2019Based in Akiruno, JP· patent location history
2007–2019Patents assigned to OLYMPUS CORP (10)· patent assignee history
2013–2015Patents assigned to OLYMPUS IMAGING CORP (6)· patent assignee history
2013–2014Patents assigned to OGATA YASUJI (2)· patent assignee history
2013–2014Patents assigned to YAMADA YASUHARU (2)· patent assignee history
2014Based in Shibuya-ku, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
OLYMPUS OPTICAL CO211987–2000
OLYMPUS CORP102007–2019
OLYMPUS IMAGING CORP62013–2015
OGATA YASUJIself22013–2014
YAMADA YASUHARU22013–2014
Locations
LocationPatentsSpan
Tokyo, JP211987–2018
Akiruno, JP101999–2019
Hachioji, JP21996–2000
Akikawa, JP21997
Shibuya-ku, JP12014