Inventor · disambiguated record
Keiichi Niwa
Also filed as: NIWA KEIICHI
7 granted patents·6 pending applications·2 citations·filing 2018–2024
70Inventor score
Top patents by PatentIndex Score
13 records- 0171US10892240B2Semiconductor fabrication apparatus and semiconductor fabrication methodTOSHIBA MEMORY CORP·Filed 2018·Granted Jan 12, 2021·2 cites·6 claims
- 0259US2025391722A1Semiconductor device and method of manufacturing semiconductor deviceKIOXIA CORP·Filed 2024·Application pending·0 cites
- 0358US2025081473A1Semiconductor deviceKIOXIA CORP·Filed 2024·Application pending·0 cites
- 0457US2025087502A1Semiconductor manufacturing apparatus and method for manufacturing semiconductor deviceKIOXIA CORP·Filed 2024·Application pending·0 cites
- 0555US12451453B2Semiconductor device, substrate, and method for manufacturing semiconductor deviceKIOXIA CORP·Filed 2022·Granted Oct 21, 2025·0 cites·17 claims
- 0655US2024312976A1Semiconductor device and manufacturing method of semiconductor deviceKIOXIA CORP·Filed 2024·Application pending·0 cites
- 0751US2023411269A1Wiring board, semiconductor device, and method for manufacturing semiconductor deviceKIOXIA CORP·Filed 2023·Application pending·0 cites
- 0850US11482502B2Semiconductor device and semiconductor device manufacturing methodKIOXIA CORP·Filed 2020·Granted Oct 25, 2022·0 cites·19 claims
- 0950US2023022159A1Semiconductor device and semiconductor device manufacturing methodKIOXIA CORP·Filed 2022·Application pending·0 cites
- 1049US11211361B2Semiconductor device and method for manufacturing the sameKIOXIA CORP·Filed 2020·Granted Dec 28, 2021·0 cites·8 claims
- 1146US10964658B2Semiconductor device having a metallic oxide or metallic hydroxide barrier layerTOSHIBA MEMORY CORP·Filed 2019·Granted Mar 30, 2021·0 cites·6 claims
- 1245US11804464B2Semiconductor device and manufacturing method thereofKIOXIA CORP·Filed 2021·Granted Oct 31, 2023·0 cites·9 claims
- 1342US11837569B2Semiconductor device and manufacturing method thereofKIOXIA CORP·Filed 2021·Granted Dec 5, 2023·0 cites·20 claims
Join the waitlist — get patent alerts
Get an alert when Keiichi Niwa 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 →