P

Inventor

WATANABE TAKU

JP44 patents
⚠️ This page may combine multiple inventors who share the name “WATANABE TAKU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CANON KK

15 patents
US7697879B2Apr 13, 2010

Electrophotographic image forming apparatus and process cartridge

CANON KK8 citations84
US7593670B2Sep 22, 2009

Charging device including a contact charging member with silica thereon, process cartridge including a contact charging member, and image forming apparatus including such charging member

CANON KK15 citations83
US9857724B2Jan 2, 2018

Image forming apparatus

CANON KK2 citations72
US12405561B2Sep 2, 2025

Press-bonded sheet manufacturing method, press-bonded sheet manufacturing apparatus, and image forming apparatus

CANON KK0 citations62
US11840417B2Dec 12, 2023

Sheet bonding apparatus

CANON KK1 citations62
US9250567B2Feb 2, 2016

Developer container for detecting developer amount based on capacitance, developing apparatus, process cartridge, and image forming apparatus

CANON KK2 citations62
US12372910B2Jul 29, 2025

Image forming apparatus having sheet bonding apparatus

CANON KK0 citations52
US11835898B2Dec 5, 2023

Adhesion apparatus for forming image of powder adhesive, and image forming apparatus

CANON KK0 citations52
US9880495B2Jan 30, 2018

Developer container, developing apparatus, process cartridge, and image forming apparatus for detecting an amount of developer based on a change in electric capacitance

CANON KK0 citations52
US11079712B2Aug 3, 2021

Image forming apparatus for an intermediate transfer of a toner image and for reversely transferring collected developer to an image bearing member

CANON KK0 citations51
US11054786B2Jul 6, 2021

Image forming apparatus

CANON KK0 citations51
US10802419B2Oct 13, 2020

Method of manufacturing developer container, developer container, developing apparatus, process cartridge, and image forming apparatus

CANON KK0 citations51
US9989888B2Jun 5, 2018

Method of manufacturing developer container

CANON KK0 citations51
US10444671B2Oct 15, 2019

Image forming apparatus having a developer detecting unit

CANON KK0 citations41
US10649384B2May 12, 2020

Image forming apparatus

CANON KK0 citations40

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

6 patents

GREE INC

3 patents

SAMSUNG ELECTRONICS CO LTD

3 patents

SONY CORP

3 patents

MEDICAL & BIOLOGICAL LABORATORIES CO LTD

3 patents

MITSUBISHI GAS CHEMICAL CO

2 patents

WATANABE TAKU

2 patents

HITACHI HIGH TECH CORP

1 patent

MITSUBISHI ELECTRIC CORP

1 patent

FSX INC

1 patent

JFE STEEL CORP

1 patent

YAMAMOTO SHINYA

1 patent

HORIKAWA TOMO

1 patent

TAKAHASHI MITSUNORI

1 patent