LexDanaLexDanabeta
Inventor

Masaru Eguchi

Inventor
Saitama, JP

Overview

46→
Patents
1998–2015
Patent span
Physics
Primary field (CPC G)

Patents· 46 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus59%
A61BDiagnosis14%
H04NPictorial communication, e.g. television9%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds5%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients3%
C09DCoating compositions, e.g. paints, varnishes or lacquers3%
C07CAcyclic or carbocyclic compounds2%
G01BMeasuring length, thickness or similar linear dimensions2%
G01NInvestigating or analysing materials by determining their chemical or physical properties2%
H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation2%
PatentTitleYear
9,097,882'Zoom lens system'20158,830,358'High zoom-ratio zoom lens system and electronic imaging apparatus using the same'20148,730,586'Zoom lens system and electronic imaging apparatus provided with the same'20148,699,146'Zoom lens system'20148,675,278'High zoom-ratio zoom lens system'20148,670,184'Zoom lens system and electronic imaging apparatus provided with the same'20148,553,328'Zoom lens system'20138,531,768'Zoom lens system'20138,264,780'High zoom-ratio zoom lens system'20128,248,708'Zoom lens system and electronic imaging apparatus that uses the same'20128,243,371'High zoom-ratio zoom lens system'20128,174,774'Zoom lens system'20128,169,720'Rear focus wide-angle lens system and electronic imaging device using the same'20128,105,503'Method of storing thermoresponsive polymer in state of aqueous solution'20127,976,728'Aqueous solution of polymer having upper critical solution temperature, aqueous dispersion of particle modified with the polymer and method of storing the same'20117,957,071'Focus adjustment method of zoom lens system'20117,952,813'Zoom lens system and electronic imaging apparatus that uses the same'20117,847,047'Thermoresponsive polymer and production method thereof'20107,830,614'Zoom lens system and electronic imaging apparatus that uses the same'20107,808,720'Standard zoom lens system'20107,791,819'Zoom lens system'20107,777,965'Zoom lens system'20107,675,016'Solid-state image pickup device and method of producing the same'20107,522,349'Wide-angle zoom lens system'20097,142,372'Zoom lens system'20066,975,461'Zoom lens system'20056,958,866'Zoom lens system'20056,943,961'Zoom lens system and focus adjustment method thereof'20056,917,476'Zoom lens system'20056,885,507'Zoom lens system which covers a wide angle range'20056,853,496'Zoom lens system'20056,829,106'High zoom-ratio zoom lens system'20046,807,015'Focusing method for a zoom lens system'20046,790,175'Endoscope system'20046,788,861'Endoscope system, scanning optical system and polygon mirror'20046,657,792'Zoom lens system'20036,600,861'Fiber bundle and endoscope apparatus'20036,545,820'Zoom lens system'20036,527,708'Endoscope system'20036,517,479'Stereoscopic endoscope'20036,498,948'Endoscope system'20026,477,403'Endoscope system'20026,469,833'Illumination optical system and an illumination lens element'20026,456,769'Fiber bundle and endoscope apparatus'20026,338,711'Stereoscopic endoscope'20025,828,498'Objective lens of endoscope'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2003Patents assigned to ASAHI OPTICAL CO LTD (6)· patent assignee history
1998–2004Based in Tokyo, JP· patent location history
2002–2010Patents assigned to PENTAX CORP (17)· patent assignee history
2002–2015Based in Saitama, JP· patent location history
2009–2015Patents assigned to HOYA CORP (20)· patent assignee history
2010–2012Based in Chiba, JP· patent location history
2012–2015Patents assigned to EGUCHI MASARU (12)· patent assignee history
2013–2015Patents assigned to ABE TETSUYA (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HOYA CORP202009–2015
PENTAX CORP172002–2010
EGUCHI MASARUself122012–2015
ASAHI OPTICAL CO LTD61998–2003
ABE TETSUYA32013–2015
Locations
LocationPatentsSpan
Saitama, JP332002–2015
Tokyo, JP101998–2004
Chiba, JP32010–2012