Inventor · disambiguated record
Masaru Eguchi
Also filed as: EGUCHI MASARU
46 granted patents·3 pending applications·1,007 citations·filing 1997–2020
98Inventor score
Top patents by PatentIndex Score
49 records- 0197US6498948B1Endoscope systemPENTAX CORP·Filed 2000·Granted Dec 24, 2002·123 cites·15 claims
- 0293US7976728B2Aqueous solution of polymer having upper critical solution temperature, aqueous dispersion of particle modified with the polymer and method of storing the sameJNC CORP·Filed 2008·Granted Jul 12, 2011·10 cites·11 claims
- 0387US11656456B2Optical element and optical apparatusHOYA CORP·Filed 2020·Granted May 23, 2023·2 cites·18 claims
- 0487US6975461B2Zoom lens systemPENTAX CORP·Filed 2003·Granted Dec 13, 2005·35 cites·5 claims
- 0586US6477403B1Endoscope systemASAHI OPTICAL CO LTD·Filed 2000·Granted Nov 5, 2002·206 cites·12 claims
- 0685US6790175B1Endoscope systemPENTAX CORP·Filed 2000·Granted Sep 14, 2004·180 cites·11 claims
- 0783US6917476B2Zoom lens systemPENTAX CORP·Filed 2003·Granted Jul 12, 2005·26 cites·8 claims
- 0880US7522349B2Wide-angle zoom lens systemHOYA CORP·Filed 2007·Granted Apr 21, 2009·10 cites·15 claims
- 0979US6456769B1Fiber bundle and endoscope apparatusASAHI OPTICAL CO LTD·Filed 2000·Granted Sep 24, 2002·98 cites·8 claims
- 1078US8174774B2Zoom lens systemEGUCHI MASARU·Filed 2010·Granted May 8, 2012·4 cites·7 claims
- 1178US7791819B2Zoom lens systemHOYA CORP·Filed 2008·Granted Sep 7, 2010·8 cites·23 claims
- 1277US8830358B2High zoom-ratio zoom lens system and electronic imaging apparatus using the sameEGUCHI MASARU·Filed 2011·Granted Sep 9, 2014·4 cites·5 claims
- 1377US6527708B1Endoscope systemPENTAX CORP·Filed 2000·Granted Mar 4, 2003·101 cites·10 claims
- 1475US5828498AObjective lens of endoscopeASAHI OPTICAL CO LTD·Filed 1997·Granted Oct 27, 1998·43 cites·22 claims
- 1573US7777965B2Zoom lens systemHOYA CORP·Filed 2008·Granted Aug 17, 2010·6 cites·17 claims
- 1671US8169720B2Rear focus wide-angle lens system and electronic imaging device using the sameEGUCHI MASARU·Filed 2009·Granted May 1, 2012·5 cites·20 claims
- 1770US8730586B2Zoom lens system and electronic imaging apparatus provided with the sameHOYA CORP·Filed 2012·Granted May 20, 2014·2 cites·7 claims
- 1870US6338711B1Stereoscopic endoscopeASAHI OPTICAL CO LTD·Filed 1999·Granted Jan 15, 2002·31 cites·4 claims
- 1969US8670184B2Zoom lens system and electronic imaging apparatus provided with the sameHOYA CORP·Filed 2012·Granted Mar 11, 2014·2 cites·6 claims
- 2069US8531768B2Zoom lens systemABE TETSUYA·Filed 2012·Granted Sep 10, 2013·2 cites·16 claims
- 2167US8248708B2Zoom lens system and electronic imaging apparatus that uses the sameHAYAKAWA KOICHIRO·Filed 2011·Granted Aug 21, 2012·2 cites·6 claims
- 2267US7808720B2Standard zoom lens systemHOYA CORP·Filed 2007·Granted Oct 5, 2010·4 cites·18 claims
- 2367US6853496B2Zoom lens systemPENTAX CORP·Filed 2003·Granted Feb 8, 2005·10 cites·6 claims
- 2466US7142372B2Zoom lens systemPENTAX CORP·Filed 2004·Granted Nov 28, 2006·9 cites·5 claims
- 2566US6788861B1Endoscope system, scanning optical system and polygon mirrorPENTAX CORP·Filed 2000·Granted Sep 7, 2004·40 cites·10 claims
- 2665US7675016B2Solid-state image pickup device and method of producing the sameHITACHI LTD·Filed 2007·Granted Mar 9, 2010·3 cites·10 claims
- 2763US6657792B2Zoom lens systemPENTAX CORP·Filed 2002·Granted Dec 2, 2003·8 cites·8 claims
- 2862US6469833B2Illumination optical system and an illumination lens elementASAHI OPTICAL CO LTD·Filed 2001·Granted Oct 22, 2002·7 cites·11 claims
- 2959US8105503B2Method of storing thermoresponsive polymer in state of aqueous solutionEGUCHI MASARU·Filed 2011·Granted Jan 31, 2012·0 cites·7 claims
- 3059US2011155947A1Lyophilizable temperature-responsive magnetic fine particlesCHISSO CORP·Filed 2009·Application pending·0 cites
- 3155US6943961B2Zoom lens system and focus adjustment method thereofPENTAX CORP·Filed 2004·Granted Sep 13, 2005·4 cites·9 claims
- 3255US6545820B2Zoom lens systemPENTAX CORP·Filed 2001·Granted Apr 8, 2003·4 cites·3 claims
- 3354US6829106B2High zoom-ratio zoom lens systemPENTAX CORP·Filed 2003·Granted Dec 7, 2004·4 cites·5 claims
- 3454US6807015B2Focusing method for a zoom lens systemPENTAX CORP·Filed 2001·Granted Oct 19, 2004·4 cites·7 claims
- 3554US6600861B2Fiber bundle and endoscope apparatusPENTAX CORP·Filed 2002·Granted Jul 29, 2003·9 cites·9 claims
- 3650US7952813B2Zoom lens system and electronic imaging apparatus that uses the sameHOYA CORP·Filed 2009·Granted May 31, 2011·0 cites·7 claims
- 3748US8553328B2Zoom lens systemABE TETSUYA·Filed 2012·Granted Oct 8, 2013·0 cites·11 claims
- 3847US7847047B2Thermoresponsive polymer and production method thereofCHISSO CORP·Filed 2007·Granted Dec 7, 2010·0 cites·6 claims
- 3946US9097882B2Zoom lens systemABE TETSUYA·Filed 2011·Granted Aug 4, 2015·0 cites·9 claims
- 4046US7830614B2Zoom lens system and electronic imaging apparatus that uses the sameHOYA CORP·Filed 2009·Granted Nov 9, 2010·0 cites·15 claims
- 4146US6885507B2Zoom lens system which covers a wide angle rangePENTAX CORP·Filed 2003·Granted Apr 26, 2005·1 cites·6 claims
- 4245US8264780B2High zoom-ratio zoom lens systemEGUCHI MASARU·Filed 2011·Granted Sep 11, 2012·0 cites·11 claims
- 4345US8243371B2High zoom-ratio zoom lens systemEGUCHI MASARU·Filed 2011·Granted Aug 14, 2012·0 cites·7 claims
- 4445US7957071B2Focus adjustment method of zoom lens systemHOYA CORP·Filed 2009·Granted Jun 7, 2011·0 cites·6 claims
- 4543US2011139719A1Magnetic particles and method for producing thereofCHISSO CORP·Filed 2010·Application pending·0 cites
- 4642US8675278B2High zoom-ratio zoom lens systemEGUCHI MASARU·Filed 2011·Granted Mar 18, 2014·0 cites·6 claims
- 4741US8699146B2Zoom lens systemEGUCHI MASARU·Filed 2012·Granted Apr 15, 2014·0 cites·6 claims
- 4839US6958866B2Zoom lens systemPENTAX CORP·Filed 2002·Granted Oct 25, 2005·0 cites·13 claims
- 4936US2019185711A1Epoxy resin composition and cured resin film with low curing shrinkage and excellent adhesionJNC CORP·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →