Inventor

SASAKI KAZUTSUNA

JP14 patents

⚠️ This page may combine multiple inventors who share the name “SASAKI KAZUTSUNA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FUJIFILM BUSINESS INNOVATION CORP

12 patents

US12541158B2Feb 3, 2026

Toner for electrostatic charge image development, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method

FUJIFILM BUSINESS INNOVATION CORP0 citations62

US12282292B2Apr 22, 2025

Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge

FUJIFILM BUSINESS INNOVATION CORP0 citations62

US11036155B2Jun 15, 2021

Toner for electrostatic image development, electrostatic image developer, and toner cartridge

FUJIFILM BUSINESS INNOVATION CORP0 citations62

US12181836B2Dec 31, 2024

Electrostatic charge image developing carrier, electrostatic charge image developer, process cartridge, image forming apparatus and image forming method

FUJIFILM BUSINESS INNOVATION CORP0 citations61

US12169390B2Dec 17, 2024

Electrostatic charge image developer, process cartridge, image forming apparatus, and image forming method

FUJIFILM BUSINESS INNOVATION CORP0 citations61

US12153377B2Nov 26, 2024

Electrostatic charge image developer, process cartridge, image forming apparatus, and image forming method

FUJIFILM BUSINESS INNOVATION CORP0 citations61

US11556071B2Jan 17, 2023

Electrostatic charge image developing carrier, electrostatic charge image developer, process cartridge, image forming apparatus and image forming method

FUJIFILM BUSINESS INNOVATION CORP0 citations61

US11960243B2Apr 16, 2024

Electrostatic image developer, process cartridge, image forming apparatus, and image forming method

FUJIFILM BUSINESS INNOVATION CORP0 citations60

US11181847B2Nov 23, 2021

Carrier for electrostatic image development, electrostatic image developer, and process cartridge

FUJIFILM BUSINESS INNOVATION CORP0 citations60

US11747744B2Sep 5, 2023

Electrostatic charge image developing carrier, electrostatic charge image developer, and image forming apparatus

FUJIFILM BUSINESS INNOVATION CORP0 citations59

US11561483B2Jan 24, 2023

Electrostatic charge image developing carrier, electrostatic charge image developer, and image forming apparatus

FUJIFILM BUSINESS INNOVATION CORP0 citations59

US12174583B2Dec 24, 2024

Electrostatic charge image developing carrier, electrostatic charge image developer, process cartridge, image forming apparatus and image forming method

FUJIFILM BUSINESS INNOVATION CORP0 citations50

FUJI XEROX CO LTD

2 patents

US10571820B2Feb 25, 2020

White toner for electrostatic latent image development, electrostatic image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method

FUJI XEROX CO LTD1 citations61

US10725393B1Jul 28, 2020

Toner for electrostatic image development, electrostatic image developer, and toner cartridge

FUJI XEROX CO LTD0 citations51