Inventor

ISSHIKI YUJI

JP9 patents

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

FUJIFILM BUSINESS INNOVATION CORP

7 patents

US12066789B2Aug 20, 2024

Method for producing toner for developing electrostatic charge image, toner for developing electrostatic charge image, and electrostatic charge image developer

FUJIFILM BUSINESS INNOVATION CORP0 citations62

US12372890B2Jul 29, 2025

Toner manufacturing method and toner

FUJIFILM BUSINESS INNOVATION CORP0 citations60

US12078959B2Sep 3, 2024

Method for producing toner for developing electrostatic charge image, and toner for developing electrostatic charge image

FUJIFILM BUSINESS INNOVATION CORP0 citations51

US11892800B2Feb 6, 2024

Method for producing toner for electrostatic charge image development, toner for electrostatic charge image development, and electrostatic charge image developer

FUJIFILM BUSINESS INNOVATION CORP0 citations51

US11760845B2Sep 19, 2023

Method for producing resin particle dispersion, method for producing toner for electrostatic image development, and toner for electrostatic image development

FUJIFILM BUSINESS INNOVATION CORP0 citations51

US12204276B2Jan 21, 2025

Preparing method of electrostatic charge image developing toner, electrostatic charge image developing toner, and electostatic charge image developer

FUJIFILM BUSINESS INNOVATION CORP0 citations50

US12072670B2Aug 27, 2024

Method for producing resin particle dispersion, method for producing toner for electrostatic image development, and toner for electrostatic image development

FUJIFILM BUSINESS INNOVATION CORP0 citations50

FUJI XEROX CO LTD

2 patents

US10670982B2Jun 2, 2020

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

FUJI XEROX CO LTD4 citations70

US7422834B2Sep 9, 2008

Electrostatic latent image developing magenta toner, electrostatic latent image developer, toner manufacturing method, and image forming method

FUJI XEROX CO LTD6 citations61