P

Inventor

WANG YUWEN

JP82 patents
⚠️ This page may combine multiple inventors who share the name “WANG YUWEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BROTHER IND LTD

41 patents
US11693331B2Jul 4, 2023

Developer cartridge

BROTHER IND LTD4 citations86
US11249418B2Feb 15, 2022

Developer cartridge

BROTHER IND LTD4 citations84
US10859942B2Dec 8, 2020

Developer cartridge

BROTHER IND LTD4 citations84
US10520853B2Dec 31, 2019

Developer cartridge

BROTHER IND LTD6 citations84
US10488813B2Nov 26, 2019

Drum unit

BROTHER IND LTD6 citations84
USD989856SJun 20, 2023

Toner cartridge

BROTHER IND LTD4 citations75
US11320779B2May 3, 2022

Drum unit

BROTHER IND LTD2 citations73
US11150576B2Oct 19, 2021

Developing cartridge capable of maintaining contacting pressure between developing roller and photosensitive drum regardless of residual amount of toner

BROTHER IND LTD3 citations73
US10942485B2Mar 9, 2021

Drum unit

BROTHER IND LTD2 citations73
US10852685B2Dec 1, 2020

Drum cartridge and image forming apparatus

BROTHER IND LTD2 citations73
US10725427B2Jul 28, 2020

Drum unit

BROTHER IND LTD2 citations73
US10719051B2Jul 21, 2020

Developing cartridge including first and second inclined surfaces, elastic member, and first protrusion

BROTHER IND LTD3 citations73
US10678181B2Jun 9, 2020

Image-forming apparatus including driving portion provided at only one side of developing cartridge for moving developing roller toward and away from photosensitive drum

BROTHER IND LTD1 citations73
US11269292B2Mar 8, 2022

Drum unit capable of suppressing complication of wiring

BROTHER IND LTD2 citations72
US12572090B2Mar 10, 2026

Developer cartridge

BROTHER IND LTD0 citations63
US12547095B2Feb 10, 2026

Developing cartridge having electrode contactable with another electrode by pivot motion of the cartridge

BROTHER IND LTD0 citations63
US12197168B2Jan 14, 2025

Developing cartridge including shaft and cam having cam surface

BROTHER IND LTD0 citations63
US12174557B2Dec 24, 2024

Developer cartridge

BROTHER IND LTD0 citations63
US12169385B2Dec 17, 2024

Developing cartridge including movable shaft, and cam provided on shaft and having surface inclined relative thereto

BROTHER IND LTD1 citations63
US12032329B2Jul 9, 2024

Developing cartridge including shaft and cam having cam surface

BROTHER IND LTD0 citations63
US12032307B2Jul 9, 2024

Developing cartridge having electrode contactable with another electrode by pivot motion of the cartridge

BROTHER IND LTD0 citations63
US11947310B2Apr 2, 2024

Developing cartridge including first and second inclined surfaces, elastic member, and first protrusion

BROTHER IND LTD0 citations63
US11921457B2Mar 5, 2024

Drum unit

BROTHER IND LTD0 citations63
US11846893B2Dec 19, 2023

Developing cartridge including blade and blade holder for supporting end portion of blade

BROTHER IND LTD0 citations63
US11714378B2Aug 1, 2023

Developing cartridge including shaft and cam having cam surface

BROTHER IND LTD0 citations63
US11573503B2Feb 7, 2023

Developing cartridge having electrode contactable with another electrode by pivot motion of the cartridge

BROTHER IND LTD0 citations63
USD976310SJan 24, 2023

Toner cartridge

BROTHER IND LTD1 citations63
US11550256B2Jan 10, 2023

Developing cartridge including first and second inclined surfaces, elastic member, and first protrusion

BROTHER IND LTD0 citations63
US11467515B2Oct 11, 2022

Developing cartridge capable of maintaining contacting pressure between developing roller and photosensitive drum regardless of residual amount of toner

BROTHER IND LTD0 citations63
US11402796B2Aug 2, 2022

Developing cartridge including developing roller to contact photosensitive drum and image forming apparatus including the same

BROTHER IND LTD1 citations63
US11300898B2Apr 12, 2022

Developing cartridge including blade and blade holder for supporting end portion of blade

BROTHER IND LTD0 citations63
US11275336B2Mar 15, 2022

Image-forming apparatus including driving portion provided at only one side of developing cartridge for moving developing roller toward and away from photosensitive drum

BROTHER IND LTD0 citations63
US11256208B2Feb 22, 2022

Developing cartridge including shaft and cam having cam surface

BROTHER IND LTD0 citations63
US11204579B2Dec 21, 2021

Drawer including photosensitive drum and frame, and image forming apparatus provided with the same

BROTHER IND LTD0 citations63
US11126139B2Sep 21, 2021

Developing cartridge including first and second inclined surfaces, elastic member, and first protrusion

BROTHER IND LTD0 citations63
US11099516B2Aug 24, 2021

Drawer including photosensitive drum and frame having guide roller

BROTHER IND LTD0 citations63
US11009825B2May 18, 2021

Image-forming apparatus including driving portion provided at only one side of developing cartridge for moving developing roller toward and away from photosensitive drum

BROTHER IND LTD0 citations63
US10962923B2Mar 30, 2021

Developing cartridge including shaft and cam having cam surface

BROTHER IND LTD0 citations63
US10890857B2Jan 12, 2021

Developing cartridge having electrode contactable with another electrode by pivot motion of the cartridge

BROTHER IND LTD0 citations63
US10691060B2Jun 23, 2020

Drawer including photosensitive drum and frame having guide roller

BROTHER IND LTD1 citations63
US12566401B2Mar 3, 2026

Image forming apparatus having process cartridge with electrical contacts and memory contact facing outward

BROTHER IND LTD0 citations62

BEIJING XIAOMI MOBILE SOFTWARE CO LTD

5 patents

DIALOG SEMICONDUCTOR INC

2 patents

UNIV SOUTHWEST PETROLEUM

1 patent

REN PEIFENG

1 patent

Showing the top 50 of 82 patents by PatentIndex Score.