Inventor · disambiguated record
Keiji Handa
Also filed as: HANDA KEIJI
10 granted patents·4 pending applications·270 citations·filing 1981–2017
91Inventor score
Files withOLYMPUS MEDICAL SYSTEMS CORP4AGENCY IND SCIENCE TECHN2OLYMPUS OPTICAL CO2ASADA DAISUKE1HANDA KEIJI1
Top patents by PatentIndex Score
14 records- 0188US8267854B2Endoscope systemASADA DAISUKE·Filed 2008·Granted Sep 18, 2012·69 cites·2 claims
- 0286US8182414B2Endoscope system having retaining instrumentHANDA KEIJI·Filed 2008·Granted May 22, 2012·67 cites·6 claims
- 0379US8317814B2Medical device and process of installing medical device in patientKARASAWA HITOSHI·Filed 2009·Granted Nov 27, 2012·23 cites·9 claims
- 0477US8259167B2Scattering medium internal observation apparatus, image pickup system, image pickup method and endoscope apparatusISHIWATA HIROSHI·Filed 2008·Granted Sep 4, 2012·20 cites·80 claims
- 0571US6693397B2Light source deviceOLYMPUS CORP·Filed 2002·Granted Feb 17, 2004·14 cites·20 claims
- 0671US4368923ANodule collectorAGENCY IND SCIENCE TECHN·Filed 1981·Granted Jan 18, 1983·28 cites·5 claims
- 0770US5020724ANozzle for water jet cuttingAGENCY IND SCIENCE TECHN·Filed 1989·Granted Jun 4, 1991·26 cites·3 claims
- 0849US2008309758A1Endoscope system, camera set on body cavity inner wall and method of setting the camera set on body cavity inner wall on inner surface of body cavity wallOLYMPUS MEDICAL SYSTEMS CORP·Filed 2008·Application pending·0 cites
- 0949US2009082627A1Medical apparatusOLYMPUS MEDICAL SYSTEMS CORP·Filed 2008·Application pending·0 cites
- 1046US2007027362A1Infrared observation systemOLYMPUS MEDICAL SYSTEMS CORP·Filed 2006·Application pending·0 cites
- 1143US5526249ALight source deviceOLYMPUS OPTICAL CO·Filed 1993·Granted Jun 11, 1996·13 cites·5 claims
- 1240US5335154AOptical axis adjustment mechanism for a light sourceOLYMPUS OPTICAL CO·Filed 1992·Granted Aug 2, 1994·10 cites·6 claims
- 1339US2010113872A1Medical apparatus and procedure of installing medical apparatus in patientOLYMPUS MEDICAL SYSTEMS CORP·Filed 2010·Application pending·0 cites
- 1429US10821724B2Inkjet recording device and inkjet head driving methodKONICA MINOLTA INC·Filed 2017·Granted Nov 3, 2020·0 cites·20 claims
Join the waitlist — get patent alerts
Get an alert when Keiji Handa 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 →