Inventor · disambiguated record
Masakazu Tatsumi
Also filed as: TATSUMI MASAKAZU
11 granted patents·21 citations·filing 1980–2023
83Inventor score
Top patents by PatentIndex Score
11 records- 0192US10732545B2Cartridge remanufacturing method and cartridgeCANON KK·Filed 2019·Granted Aug 4, 2020·7 cites·25 claims
- 0283USD881986SProcess cartridge for image forming apparatusCANON KK·Filed 2018·Granted Apr 21, 2020·1 cites·1 claims
- 0379US10955794B2Cartridge and remanufacturing method of cartridgeCANON KK·Filed 2020·Granted Mar 23, 2021·1 cites·11 claims
- 0471USD261266SVacuum cleanerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1980·Granted Oct 13, 1981·12 cites·1 claims
- 0568US11500305B2Process cartridge having toner receiving portionCANON KK·Filed 2021·Granted Nov 15, 2022·0 cites·12 claims
- 0667US11550255B2Image forming apparatus and developing cartridgeCANON KK·Filed 2021·Granted Jan 10, 2023·0 cites·8 claims
- 0767US11086267B2Image forming apparatus and developing cartridgeCANON KK·Filed 2019·Granted Aug 10, 2021·0 cites·10 claims
- 0866US11360427B2Cartridge and remanufacturing method of cartridgeCANON KK·Filed 2021·Granted Jun 14, 2022·0 cites·9 claims
- 0965US11209749B2Process cartridge having toner receiving portionCANON KK·Filed 2020·Granted Dec 28, 2021·0 cites·16 claims
- 1052US12072667B2Cartridge and image forming apparatusCANON KK·Filed 2023·Granted Aug 27, 2024·0 cites·14 claims
- 1126US9736076B2Device server and control method thereofSILEX TECHNOLOGY INC·Filed 2015·Granted Aug 15, 2017·0 cites·13 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →