Inventor · disambiguated record
Kazuyasu Ohashi
Also filed as: OHASHI KAZUYASU
63 granted patents·1,221 citations·filing 1991–2020
99Inventor score
Top patents by PatentIndex Score
63 records- 0196US8587878B2Image-forming lens, and imaging apparatus and information device using the image-forming lensOHASHI KAZUYASU·Filed 2013·Granted Nov 19, 2013·21 cites·19 claims
- 0295US8526128B2Image-forming lens, and camera device and portable information terminal device with the image-forming lensKUBOTA TAKASHI·Filed 2011·Granted Sep 3, 2013·19 cites·20 claims
- 0395US7580623B2Lens barrel, camera, and mobile information terminalRICOH KK·Filed 2005·Granted Aug 25, 2009·23 cites·25 claims
- 0494US7151638B2Zooming lens system and device using the zooming lens systemRICOH KK·Filed 2005·Granted Dec 19, 2006·42 cites·50 claims
- 0593US9201223B2Imaging lens, camera and hand-held data terminal deviceOHASHI KAZUYASU·Filed 2013·Granted Dec 1, 2015·18 cites·12 claims
- 0693US8780463B2Image-forming lens, and imaging apparatus and information device using the image-forming lensOHASHI KAZUYASU·Filed 2011·Granted Jul 15, 2014·13 cites·12 claims
- 0793US7420745B2Zoom lens and information deviceRICOH KK·Filed 2006·Granted Sep 2, 2008·26 cites·8 claims
- 0893US7167320B2Zoom lens and information device including the sameRICOH KK·Filed 2006·Granted Jan 23, 2007·35 cites·23 claims
- 0993US6353506B1Compact zoom lens and a camera using the zoom lensRICOH KK·Filed 2000·Granted Mar 5, 2002·61 cites·18 claims
- 1092US9864167B2Image forming lens and image capturing deviceOHASHI KAZUYASU·Filed 2015·Granted Jan 9, 2018·10 cites·19 claims
- 1192US7535654B2Zoom lens, imaging device, and personal digital assistantRICOH KK·Filed 2007·Granted May 19, 2009·29 cites·15 claims
- 1292US5630188ALighting type bright frame finderRICOH KK·Filed 1994·Granted May 13, 1997·38 cites·5 claims
- 1391US8547651B2Image-forming lens, and camera device and portable information terminal device with the image-forming lensKUBOTA TAKASHI·Filed 2013·Granted Oct 1, 2013·9 cites·12 claims
- 1491US6829102B2Zoom lens, and camera and portable information terminal for utilizing zoom lensRICOH KK·Filed 2003·Granted Dec 7, 2004·51 cites·78 claims
- 1591US6747818B2Image forming lens, image forming lens unit, original document reading module, apparatus and method, and image information processing apparatusRICOH KK·Filed 2001·Granted Jun 8, 2004·49 cites·166 claims
- 1691US5581319AIlluminating window type bright frame finderRICOH KK·Filed 1995·Granted Dec 3, 1996·38 cites·4 claims
- 1790US8018663B2Image forming lens, camera and portable information terminalRICOH CO LTD·Filed 2009·Granted Sep 13, 2011·23 cites·18 claims
- 1890US6771433B2Zoom lens, variable magnification group, camera unit and portable information terminal unitRICOH KK·Filed 2002·Granted Aug 3, 2004·40 cites·46 claims
- 1989US6525885B2Zoom lens, camera and portable information terminal deviceRICOH KK·Filed 2001·Granted Feb 25, 2003·39 cites·11 claims
- 2088US8149517B2Zoom lens unit, imaging device and portable information terminal deviceOHASHI KAZUYASU·Filed 2010·Granted Apr 3, 2012·10 cites·20 claims
- 2188US7554746B2Zoom lens and information deviceRICOH KK·Filed 2008·Granted Jun 30, 2009·15 cites·12 claims
- 2288US7535650B2Zoom lens, image pickup apparatus, and personal digital assistantRICOH KK·Filed 2007·Granted May 19, 2009·19 cites·17 claims
- 2388US7304803B2Zoom lens unit, imaging device and photographing deviceRICOH KK·Filed 2006·Granted Dec 4, 2007·17 cites·22 claims
- 2487US9207430B2Image-forming lens, and imaging apparatus and information device using the image-forming lensRICOH CO LTD·Filed 2014·Granted Dec 8, 2015·5 cites·10 claims
- 2587US6839185B2Compact zoom lens system and digital camera using the compact zoom lens systemRICOH KK·Filed 2003·Granted Jan 4, 2005·31 cites·28 claims
- 2686US7164542B2Zoom lens, variable magnification group, camera unit and portable information terminal unitRICOH KK·Filed 2004·Granted Jan 16, 2007·26 cites·7 claims
- 2786US6839183B2Zoom lens, camera, and portable information terminal deviceRICOH KK·Filed 2003·Granted Jan 4, 2005·31 cites·15 claims
- 2885US9952408B2Image-forming lens, and imaging apparatus and information device using the image-forming lensRICOH CO LTD·Filed 2015·Granted Apr 24, 2018·3 cites·20 claims
- 2985US7663808B2Zoom lens, imaging device, and personal digital assistantRICOH KK·Filed 2007·Granted Feb 16, 2010·14 cites·17 claims
- 3085US6995921B2Compact zoom lens system and digital camera using the compact zoom lens systemRICOH KK·Filed 2004·Granted Feb 7, 2006·25 cites·11 claims
- 3184US9606324B2Image-forming lens, and camera device and portable information terminal device with the image-forming lensRICOH CO LTD·Filed 2014·Granted Mar 28, 2017·4 cites·10 claims
- 3284US5398135AZoom lensRICOH KK·Filed 1993·Granted Mar 14, 1995·62 cites·22 claims
- 3383US7589910B2Zoom lens, camera, and personal digital assistantRICOH KK·Filed 2007·Granted Sep 15, 2009·11 cites·10 claims
- 3481US7672066B2Zoom lens camera and personal digital assistant deviceRICOH KK·Filed 2008·Granted Mar 2, 2010·10 cites·12 claims
- 3581US7038858B2Downsize, high performance, and wide range magnification zoom lens and camera apparatusRICOH KK·Filed 2001·Granted May 2, 2006·18 cites·76 claims
- 3681US5576891AZoom lens using a first lens group having a positive focal length and a second lens group having a negative focal lengthRICOH KK·Filed 1994·Granted Nov 19, 1996·53 cites·62 claims
- 3780US8599500B2Imaging lens, camera and personal digital assistantOHASHI KAZUYASU·Filed 2012·Granted Dec 3, 2013·4 cites·12 claims
- 3880US5153779ALens for reading originalRICOH KK·Filed 1991·Granted Oct 6, 1992·51 cites·3 claims
- 3979US7095564B2Zoom lens, lens unit, camera and portable information terminal deviceRICOH KK·Filed 2004·Granted Aug 22, 2006·20 cites·54 claims
- 4078US7855842B2Zoom lens unit, imaging apparatus and portable information terminal deviceRICOH CO LTD·Filed 2009·Granted Dec 21, 2010·8 cites·18 claims
- 4178US7679835B2Downsize, high performance, and wide range magnification zoom lens and camera apparatusRICOH KK·Filed 2008·Granted Mar 16, 2010·6 cites·17 claims
- 4278US5617254ACompact zoom lensRICOH KK·Filed 1996·Granted Apr 1, 1997·52 cites·11 claims
- 4377US7379249B2Downsize, high performance, and wide range magnification zoom lens and camera apparatusRICOH KK·Filed 2004·Granted May 27, 2008·13 cites·38 claims
- 4477US5930056AGauss lensRICOH KK·Filed 1998·Granted Jul 27, 1999·49 cites·24 claims
- 4576US8830599B2Image-forming lens, and camera device and portable information terminal device with the image-forming lensRICOH CO LTD·Filed 2013·Granted Sep 9, 2014·2 cites·11 claims
- 4676US5687401AHigh variable-power ratio, high aperture ratio, zoom optical systemRICOH KK·Filed 1996·Granted Nov 11, 1997·56 cites·10 claims
- 4775US9104010B2Imaging lens, imaging apparatus, and information deviceOHASHI KAZUYASU·Filed 2013·Granted Aug 11, 2015·3 cites·20 claims
- 4873US7557839B2Electronic imaging device and mobile terminal including the electronic imaging deviceRICOH KK·Filed 2004·Granted Jul 7, 2009·14 cites·16 claims
- 4970US10845572B2Imaging optical system, imaging device, and portable information terminal deviceOHASHI KAZUYASU·Filed 2018·Granted Nov 24, 2020·1 cites·14 claims
- 5069US8000042B2Lens barrel, camera and mobile information terminalRICOH CO LTD·Filed 2005·Granted Aug 16, 2011·2 cites·70 claims
Showing the top 50 of 63 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Kazuyasu Ohashi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →