Inventor

KUMIYA TAKU

JP4 patents

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

RICOH CO LTD

1 patent

US10365601B2Jul 30, 2019

Image forming apparatus and image forming method

RICOH CO LTD1 citations60

YAMASHITA MASAHIDE

1 patent

US10599064B2Mar 24, 2020

Powder-amount detection device and image forming apparatus incorporating same

YAMASHITA MASAHIDE1 citations58

KUMIYA TAKU

1 patent

US10429770B2Oct 1, 2019

Powder-amount detection device and image forming apparatus incorporating same

KUMIYA TAKU1 citations53

CHIBA YUSUKE

1 patent

US12050414B2Jul 30, 2024

Developing device including filter detachable holder, process cartridge, and image forming apparatus

CHIBA YUSUKE0 citations41