Inventor · disambiguated record
Takashi Azumi
Also filed as: AZUMI TAKASHI
11 granted patents·235 citations·filing 1983–1997
92Inventor score
Files withHITACHI LTD11
Top patents by PatentIndex Score
11 records- 0175US5949047ADust-proof portable IC card readerHITACHI LTD·Filed 1997·Granted Sep 7, 1999·45 cites·9 claims
- 0268US5686714ADust-proof portable IC card readerHITACHI LTD·Filed 1995·Granted Nov 11, 1997·33 cites·20 claims
- 0368US5486860AVideo camera with autofocus function and method of controlling the sameHITACHI LTD·Filed 1995·Granted Jan 23, 1996·38 cites·19 claims
- 0466US4557567ALens system with plastic lenses compensating for temperature changesHITACHI LTD·Filed 1983·Granted Dec 10, 1985·20 cites·9 claims
- 0562US5408332AFocusing apparatus for video camera or the likeHITACHI LTD·Filed 1989·Granted Apr 18, 1995·15 cites·26 claims
- 0662US5003400AFocusing apparatus of video camera or the likeHITACHI LTD·Filed 1988·Granted Mar 26, 1991·18 cites·18 claims
- 0760US5654757AFocusing apparatus for video camera or the likeHITACHI LTD·Filed 1995·Granted Aug 5, 1997·22 cites·37 claims
- 0857US4740676ARange finding automatic focusing system employing a rotatable transparent plate and a half-split light receiving elementHITACHI LTD·Filed 1986·Granted Apr 26, 1988·19 cites·3 claims
- 0950US4842387AAutomatic focusing apparatus for use in video camera and the likeHITACHI LTD·Filed 1988·Granted Jun 27, 1989·14 cites·11 claims
- 1039US4868666AAutomatic focusing apparatus having an automatic offset voltage regulating deviceHITACHI LTD·Filed 1987·Granted Sep 19, 1989·6 cites·24 claims
- 1134US4782356AAutomatic focusing apparatusHITACHI LTD·Filed 1987·Granted Nov 1, 1988·5 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →