Inventor · disambiguated record
Yoshiki Hirai
Also filed as: HIRAI YOSHIKI
5 granted patents·11 pending applications·81 citations·filing 1988–2022
81Inventor score
Top patents by PatentIndex Score
16 records- 0179US5437545AMethod and apparatus for extruding powdered materialHITACHI POWDERED METALS·Filed 1993·Granted Aug 1, 1995·25 cites·11 claims
- 0265US5409662AMethod and apparatus for extruding powder materialHITACHI POWDERED METALS·Filed 1993·Granted Apr 25, 1995·26 cites·12 claims
- 0364US4924690AMethod and apparatus for plastically forming helical internal gears and helical gearsMH CENTER LTD·Filed 1988·Granted May 15, 1990·23 cites·4 claims
- 0452US2022367112A1Preformed chip manufacturing apparatus, preformed chip, dust core manufacturing apparatus, dust core, preformed chip manufacturing method, and dust core manufacturing methodHIRAI YOSHIKI·Filed 2022·Application pending·0 cites
- 0551US2022320920A1Axial gap motor stator core and axial gap motor stator core manufacturing methodHIRAI YOSHIKI·Filed 2022·Application pending·0 cites
- 0647US2015078952A1High-density molding device and high-density molding method for mixed powderAIDA ENG LTD·Filed 2013·Application pending·0 cites
- 0747US2015076729A1High-density molding device and high-density molding method for mixed powderAIDA ENG LTD·Filed 2013·Application pending·0 cites
- 0847US2015118511A1Mixed powder high-density molding method, mixed powder high-density molding system, and high-density three-layer green compactAIDA ENG LTD·Filed 2013·Application pending·0 cites
- 0947US2015132175A1High-density molding device and high-density molding method for mixed powderAIDA ENG LTD·Filed 2013·Application pending·0 cites
- 1047US2015118096A1High-density molding device and high-density molding method for mixed powderAIDA ENG LTD·Filed 2013·Application pending·0 cites
- 1145US2015061188A1High-density molding device and high-density molding method for mixed powderAIDA ENG LTD·Filed 2013·Application pending·0 cites
- 1240US2013300021A1Mixed powder high-density molding method and mixed powder high-density molding systemHIRAI YOSHIKI·Filed 2011·Application pending·0 cites
- 1338US2010229817A1Air intake duct structureTOYOTA MOTOR CO LTD·Filed 2010·Application pending·0 cites
- 1434US2016153347A1Air-intake system for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2015·Application pending·0 cites
- 1532US5201966AMethod for making cylindrical, iron-based sintered slugs of specified porosity for subsequent plastic deformation processingHITACHI POWDERED METALS·Filed 1992·Granted Apr 13, 1993·4 cites·1 claims
- 1631US5129961ACylindrical, iron-based sintered slugs of specified porosity for subsequent plastic deformation processing and method for making themHITACHI POWDERED METALS·Filed 1990·Granted Jul 14, 1992·3 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when Yoshiki Hirai files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →