Inventor · disambiguated record
Hiroyuki Ishigami
Also filed as: ISHIGAMI HIROYUKI
4 granted patents·36 citations·filing 1977–2015
70Inventor score
Top patents by PatentIndex Score
4 records- 0161US4092012ARatchet type quick feeding mechanism for automobile pantograph jackOTSUKA KOKI KK·Filed 1977·Granted May 30, 1978·20 cites·2 claims
- 0255US4872548AIntermittently-driven belt conveyorOTSUKA KOKI KABUSHIKI KAISHA·Filed 1988·Granted Oct 10, 1989·16 cites·6 claims
- 0339US10466453B2Optical system and optical device provided therewithNIKON CORP·Filed 2015·Granted Nov 5, 2019·0 cites·10 claims
- 0430US8437096B2Optical device and optical instrumentISHIGAMI HIROYUKI·Filed 2010·Granted May 7, 2013·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →