Inventor · disambiguated record
Koichi Yamaka
Also filed as: YAMAKA KOICHI
6 granted patents·2 pending applications·2 citations·filing 2018–2023
66Inventor score
Top patents by PatentIndex Score
8 records- 0182US12151533B2Cylinder deviceHITACHI ASTEMO LTD·Filed 2020·Granted Nov 26, 2024·2 cites·16 claims
- 0261US11131400B2High-pressure fuel supply pump and method of manufacturing the sameHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2018·Granted Sep 28, 2021·0 cites·13 claims
- 0354US12085141B2Shock absorberHITACHI ASTEMO LTD·Filed 2020·Granted Sep 10, 2024·0 cites·14 claims
- 0452US12488923B2Solenoid, damping force adjustment mechanism, and damping force adjustable shock absorberHITACHI ASTEMO LTD·Filed 2022·Granted Dec 2, 2025·0 cites·11 claims
- 0552US12115830B2Shock absorberHITACHI ASTEMO LTD·Filed 2021·Granted Oct 15, 2024·0 cites·6 claims
- 0643US12305732B2Shock absorberHITACHI ASTEMO LTD·Filed 2021·Granted May 20, 2025·0 cites·15 claims
- 0743US2025180137A1Solenoid, damping force adjustment mechanism, and damping force adjustable shock absorberHITACHI ASTEMO LTD·Filed 2023·Application pending·0 cites
- 0841US2022112933A1Shock absorberHITACHI ASTEMO LTD·Filed 2019·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Koichi Yamaka 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 →