Inventor

KITAGAWA YOHICHI

JP5 patents

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

KITAGAWA YOHICHI

2 patents

US11054757B2Jul 6, 2021

Toner, image forming apparatus, image forming method, and process cartridge

KITAGAWA YOHICHI0 citations55

US12416874B2Sep 16, 2025

Toner, developer, toner accommodating unit, image forming apparatus, and image forming method

KITAGAWA YOHICHI0 citations41

RICOH CO LTD

1 patent

US11372363B2Jun 28, 2022

Image forming apparatus and image forming method

RICOH CO LTD0 citations49

YAMASHITA TAISHI

1 patent

US12529975B2Jan 20, 2026

Toner, developer, toner storage unit, image forming apparatus, and image forming method

YAMASHITA TAISHI0 citations47

INOUE DAISUKE

1 patent

US12353166B2Jul 8, 2025

Toner, method for manufacturing the toner, toner accommodating unit, image forming apparatus, and image forming method

INOUE DAISUKE0 citations47