Inventor · disambiguated record
Kazunaga Shimizu
Also filed as: SHIMIZU KAZUNAGA
3 granted patents·22 citations·filing 1997–2003
68Inventor score
Technology areasG02B
Top patents by PatentIndex Score
3 records- 0165US6972903B2Visual aidNITTOH KOGAKU KK·Filed 2002·Granted Dec 6, 2005·10 cites·7 claims
- 0259US6844987B2Zoom lens system for covering superwide-angle areaFUJI PHOTO FILM CO LTD·Filed 2003·Granted Jan 18, 2005·7 cites·10 claims
- 0332US5966247ACompact zoom lensEASTMAN KODAK CO·Filed 1997·Granted Oct 12, 1999·5 cites·19 claims
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