Inventor · disambiguated record
Yoshimasa Hayama
Also filed as: HAYAMA YOSHIMASA
6 granted patents·2 pending applications·82 citations·filing 1990–2019
82Inventor score
Top patents by PatentIndex Score
8 records- 0191US7296323B2Dust collectorHITACHI KOKI KK·Filed 2003·Granted Nov 20, 2007·47 cites·13 claims
- 0284US7966691B2Dust collectorHITACHI KOKI KK·Filed 2007·Granted Jun 28, 2011·11 cites·2 claims
- 0380US8919235B2Cutting apparatusSUDOU JUNICHI·Filed 2010·Granted Dec 30, 2014·11 cites·16 claims
- 0478US7871463B2Dust collection deviceHITACHI KOKI KK·Filed 2008·Granted Jan 18, 2011·11 cites·8 claims
- 0551US11559761B2Dust collectorKOKI HOLDINGS CO LTD·Filed 2018·Granted Jan 24, 2023·0 cites·7 claims
- 0640US2021237252A1Electric work machine and electric work machine systemKOKI HOLDINGS CO LTD·Filed 2019·Application pending·0 cites
- 0739US2014082882A1Portable cleaner provided with exhaust regulating unitHITACHI KOKI KK·Filed 2013·Application pending·0 cites
- 0835USD328080SElectric planeHITACHI KOKI HARAMACHI CO LTD·Filed 1990·Granted Jul 21, 1992·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →