Inventor · disambiguated record
Kiyoshi Sako
Also filed as: SAKO KIYOSHI
9 granted patents·1 pending application·44 citations·filing 1989–2023
81Inventor score
Top patents by PatentIndex Score
10 records- 0190US4897240ANuclear reactorJAPAN ATOMIC ENERGY RES INST·Filed 1989·Granted Jan 30, 1990·36 cites·5 claims
- 0287US10289027B2Image forming apparatus and developing device that conveys air to exhaust portFUJI XEROX CO LTD·Filed 2017·Granted May 14, 2019·3 cites·14 claims
- 0381US10901342B2Developing device and image forming apparatusFUJI XEROX CO LTD·Filed 2019·Granted Jan 26, 2021·3 cites·9 claims
- 0474US9201346B2Powder transport device, developing device, and image forming apparatusFUJI XEROX CO LTD·Filed 2013·Granted Dec 1, 2015·2 cites·12 claims
- 0562US11852993B1Toner container and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Granted Dec 26, 2023·0 cites·20 claims
- 0661US11841637B1Developing device and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Granted Dec 12, 2023·0 cites·14 claims
- 0761US11822281B2Sensor cleaning device and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Granted Nov 21, 2023·0 cites·14 claims
- 0857US10877428B2Developing device and image forming apparatusFUJI XEROX CO LTD·Filed 2019·Granted Dec 29, 2020·0 cites·11 claims
- 0951US12085873B2Developing device and image forming apparatus capable of shortening time required to circulate developer in circulation pathFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Granted Sep 10, 2024·0 cites·8 claims
- 1048US2025004400A1Developing device and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2023·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Kiyoshi Sako 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 →