Inventor · disambiguated record
Masashi Hankawa
Also filed as: HANKAWA MASASHI
27 granted patents·2 pending applications·302 citations·filing 1994–2010
96Inventor score
Top patents by PatentIndex Score
29 records- 0190US7471459B2Zoom lens system and image pickup apparatus using the sameOLYMPUS IMAGING CORP·Filed 2006·Granted Dec 30, 2008·25 cites·27 claims
- 0290US7177092B2Wide-angle, high-zoom-ratio zoom lensOLYMPUS CORP·Filed 2002·Granted Feb 13, 2007·49 cites·49 claims
- 0384US8014078B2Zoom lens and image pickup apparatus equipped with sameOLYMPUS IMAGING CORP·Filed 2010·Granted Sep 6, 2011·6 cites·7 claims
- 0481US7453650B2Zoom optical system and electronic imaging apparatus having the sameOLYMPUS IMAGING CORP·Filed 2008·Granted Nov 18, 2008·5 cites·12 claims
- 0578US7339745B2Zoom lens system and electronic image pickup apparatus using the sameOLYMPUS IMAGING CORP·Filed 2006·Granted Mar 4, 2008·9 cites·26 claims
- 0676US7729058B2Zoom lens system and electronic image pickup apparatus using the sameOLYMPUS IMAGING CORP·Filed 2006·Granted Jun 1, 2010·7 cites·48 claims
- 0776US5559638AWide-angle lens system #6OLYMPUS OPTICAL CO·Filed 1994·Granted Sep 24, 1996·41 cites·30 claims
- 0875US7944622B2Zoom lens and image pickup apparatus equipped with sameOLYMPUS IMAGING CORP·Filed 2008·Granted May 17, 2011·5 cites·4 claims
- 0975US7339744B2Electronic imaging apparatusOLYMPUS IMAGING CORP·Filed 2006·Granted Mar 4, 2008·7 cites·27 claims
- 1072US7561343B2Electronic image pickup apparatus using zoom lens systemOLYMPUS IMAGING CORP·Filed 2007·Granted Jul 14, 2009·6 cites·13 claims
- 1169US5727239APhotographing optical apparatusOLYMPUS OPTICAL CO·Filed 1996·Granted Mar 10, 1998·38 cites·19 claims
- 1268US7692872B2Zoom lens and imaging apparatus incorporating the sameOLYMPUS IMAGING CORP·Filed 2008·Granted Apr 6, 2010·4 cites·15 claims
- 1366US7006302B2Image-formation lens,system and imaging system using the sameOLYMPUS CORP·Filed 2005·Granted Feb 28, 2006·3 cites·15 claims
- 1464US7151637B2Zoom lens and a camera providing the sameOLYMPUS CORP·Filed 2004·Granted Dec 19, 2006·8 cites·20 claims
- 1563US6433940B1Zoom optical systemOLYMPUS OPTICAL CO·Filed 2001·Granted Aug 13, 2002·8 cites·20 claims
- 1660US7623306B2Zoom lens and imaging apparatus incorporating the sameOLYMPUS IMAGING CORP·Filed 2008·Granted Nov 24, 2009·2 cites·19 claims
- 1759US6934091B2Image-formation lens system, and imaging system using the sameOLYMPUS CORP·Filed 2003·Granted Aug 23, 2005·5 cites·15 claims
- 1855US5623371AMacro lens systemOLYMPUS OPTICAL CO·Filed 1995·Granted Apr 22, 1997·19 cites·17 claims
- 1954US6865032B2Real image type finder optical system, and imaging system comprising the sameOLYMPUS CORP·Filed 2003·Granted Mar 8, 2005·4 cites·20 claims
- 2054US5835276AOptical system having compound prism design to reduce ghosts and plaresOLYMPUS OPTICAL CO·Filed 1997·Granted Nov 10, 1998·19 cites·21 claims
- 2152US8159565B2Zoom optical system and electronic imaging apparatus having the sameHANKAWA MASASHI·Filed 2008·Granted Apr 17, 2012·0 cites·4 claims
- 2252US2006197852A1Zoom optical system and electronic imaging apparatus having the sameOLYMPUS IMAGING CORP·Filed 2006·Application pending·0 cites
- 2351US7948687B2Zoom lens and image pickup apparatus equipped with sameOLYMPUS IMAGING CORP·Filed 2010·Granted May 24, 2011·0 cites·15 claims
- 2447US7706082B2Zoom lens and imaging apparatus incorporating the sameOLYMPUS IMAGING CORP·Filed 2008·Granted Apr 27, 2010·0 cites·16 claims
- 2546US5959782AEyepiece system having wide visual fieldOLYMPUS OPTICAL CO·Filed 1997·Granted Sep 28, 1999·12 cites·21 claims
- 2641US6094310AEyepiece system having wide visual fieldOLYMPUS OPTICAL CO·Filed 1999·Granted Jul 25, 2000·9 cites·4 claims
- 2741US2006017813A1Image pick-up apparatus and image restoration methodOKUBO MITSUMASA·Filed 2005·Application pending·0 cites
- 2840US5596386AProjection and reception type focus detecting apparatusOLYMPUS OPTICAL CO·Filed 1995·Granted Jan 21, 1997·8 cites·14 claims
- 2932US5850311AEyepiece systemOLYMPUS OPTICAL CO·Filed 1996·Granted Dec 15, 1998·3 cites·15 claims
Join the waitlist — get patent alerts
Get an alert when Masashi Hankawa 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 →