Inventor · disambiguated record
Jun Hirakawa
Also filed as: HIRAKAWA JUN
20 granted patents·351 citations·filing 1987–2009
95Inventor score
Top patents by PatentIndex Score
20 records- 0190US6318912B1Adapter having a tilt and shift mechanismASAHI OPTICAL CO LTD·Filed 1999·Granted Nov 20, 2001·35 cites·28 claims
- 0278US5572276AInner focus type telephoto zoom lensASAHI OPTICAL CO LTD·Filed 1994·Granted Nov 5, 1996·46 cites·14 claims
- 0376US5724193ASuper wide angle zoom lensASAHI OPTICAL CO LTD·Filed 1995·Granted Mar 3, 1998·45 cites·17 claims
- 0468US5546232ATwo-group zoom lensASAHI OPTICAL CO LTD·Filed 1994·Granted Aug 13, 1996·32 cites·8 claims
- 0567US7116499B2Wide-angle lens systemPENTAX CORP·Filed 2005·Granted Oct 3, 2006·4 cites·6 claims
- 0665US5264965AZoom lensASAHI OPTICAL CO LTD·Filed 1992·Granted Nov 23, 1993·27 cites·6 claims
- 0763US7317581B2Fisheye lens system and a fisheye zoom lens systemPENTAX CORP·Filed 2006·Granted Jan 8, 2008·3 cites·7 claims
- 0861US5233474AWide-angle lens systemASAHI OPTICAL CO LTD·Filed 1992·Granted Aug 3, 1993·23 cites·18 claims
- 0959US5172274ALarge aperture, medium telephoto lens systemASAHI OPTICAL CO LTD·Filed 1992·Granted Dec 15, 1992·21 cites·12 claims
- 1055US5448412ATelephoto zoom lens systemASAHI OPTICAL CO LTD·Filed 1993·Granted Sep 5, 1995·18 cites·14 claims
- 1155US5061053ATelephoto zoom lens systemASAHI OPTICAL CO LTD·Filed 1989·Granted Oct 29, 1991·17 cites·4 claims
- 1249US7808723B2Photographic lens system and electronic imaging device using the sameHOYA CORP·Filed 2009·Granted Oct 5, 2010·0 cites·5 claims
- 1348US4781449AWide angle reading lens systemASAHI OPTICAL CO LTD·Filed 1987·Granted Nov 1, 1988·12 cites·7 claims
- 1448US4747676AWide-angle seven-element lens systemASASHI KOGAKU KOGYO KK·Filed 1987·Granted May 31, 1988·15 cites·9 claims
- 1547US5717532AReflection-type compound optical elementsASAHI OPTICAL CO LTD·Filed 1996·Granted Feb 10, 1998·12 cites·12 claims
- 1644US6002887AView finderASAHI OPTICAL CO LTD·Filed 1997·Granted Dec 14, 1999·12 cites·21 claims
- 1744US4934797AWide-angle lens system of a retrofocus typeASAHI OPTICAL CO LTD·Filed 1989·Granted Jun 19, 1990·10 cites·2 claims
- 1840US5822132ASoft focus lensASAHI OPTICAL CO LTD·Filed 1996·Granted Oct 13, 1998·8 cites·5 claims
- 1936US4836663ATelephoto zoom lens systemASAHI OPTICAL CO LTD·Filed 1988·Granted Jun 6, 1989·6 cites·4 claims
- 2035US4904070ATelephoto lens systemASAHI OPTICAL CO LTD·Filed 1989·Granted Feb 27, 1990·5 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →