Inventor · disambiguated record
Tuyoshi Ishikawa
Also filed as: ISHIKAWA TUYOSHI
16 granted patents·150 citations·filing 1987–2001
94Inventor score
Top patents by PatentIndex Score
16 records- 0187US6369886B2Pattern reading apparatusASAHI OPTICAL CO LTD·Filed 2001·Granted Apr 9, 2002·17 cites·15 claims
- 0287US5539622AStrobe deviceASAHI OPTICAL CO LTD·Filed 1993·Granted Jul 23, 1996·27 cites·8 claims
- 0384US5772302AStrobe deviceASAHI OPTICAL CO LTD·Filed 1995·Granted Jun 30, 1998·24 cites·27 claims
- 0474US6622915B2Pattern reading apparatusPENTAX CORP·Filed 2001·Granted Sep 23, 2003·7 cites·9 claims
- 0569US6943888B2Pattern reading apparatusPENTAX CORP·Filed 2001·Granted Sep 13, 2005·5 cites·8 claims
- 0667US5727235AZoom strobe deviceASAHI OPTICAL CO LTD·Filed 1996·Granted Mar 10, 1998·9 cites·11 claims
- 0766US6310689B1Pattern reading apparatusASAHI OPTICAL CO LTD·Filed 1997·Granted Oct 30, 2001·14 cites·8 claims
- 0857US6429937B2Pattern reading apparatusASAHI OPTICAL CO LTD·Filed 2001·Granted Aug 6, 2002·2 cites·16 claims
- 0955US6179447B1Strobe light distribution lens and zoom strobeASAHI OPTICAL CO LTD·Filed 1998·Granted Jan 30, 2001·19 cites·14 claims
- 1049US4877558AMethod of treating radioactive ion-exchange resins by oxidative decompositionFUJI ELECTRIC CO LTD·Filed 1987·Granted Oct 31, 1989·16 cites·6 claims
- 1142US6498649B2Pattern reading apparatusPENTAX CORP·Filed 2001·Granted Dec 24, 2002·0 cites·9 claims
- 1242US6483591B1Pattern reading apparatusASAHI OPTICAL CO LTD·Filed 2001·Granted Nov 19, 2002·0 cites·12 claims
- 1342US6476917B2Pattern reading apparatusASAHI OPTICAL CO LTD·Filed 2001·Granted Nov 5, 2002·0 cites·15 claims
- 1442US6421129B2Pattern reading apparatusASAHI OPTICAL CO LTD·Filed 2001·Granted Jul 16, 2002·0 cites·4 claims
- 1535US5946028AApparatus and method for controlling magnification of image in cameraASAHI OPTICAL CO LTD·Filed 1996·Granted Aug 31, 1999·5 cites·15 claims
- 1635US5680249AOptical system for cameraASAHI OPTICAL CO LTD·Filed 1995·Granted Oct 21, 1997·5 cites·10 claims
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