Inventor · disambiguated record
Hisao Ishigaki
Also filed as: ISHIGAKI HISAO
4 granted patents·45 citations·filing 1977–1999
75Inventor score
Top patents by PatentIndex Score
4 records- 0176US4207735ADial and movement fixing structureCITIZEN WATCH CO LTD·Filed 1978·Granted Jun 17, 1980·26 cites·5 claims
- 0246US4186552AWristwatch caseCITIZEN WATCH CO LTD·Filed 1977·Granted Feb 5, 1980·7 cites·9 claims
- 0328US4326281AMounting structure of plastic glass in watch caseCITIZEN WATCH CO LTD·Filed 1980·Granted Apr 20, 1982·2 cites·8 claims
- 0425US6062692AVision testerKOWA CO·Filed 1999·Granted May 16, 2000·10 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →