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Inventor

Ken Yoshida

Inventor
Chigasaki, JP

Overview

41→
Patents
1983–2020
Patent span
Physics
Primary field (CPC G)

Patents· 41 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G03Gprimary
G03GElectrography31%
F25BRefrigeration machines, plants or systems7%
C08JWorking-up6%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds4%
C01BNon-metallic elements3%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients3%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact3%
G06FElectric digital data processing3%
H02JElectric power networks3%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution3%
PatentTitleYear
10,870,735Method for producing low molecular weight polytetrafluoroethylene, low molecular weight polytetrafluoroethylene, and powder202010,793,650Method for producing low molecular weight polytetrafluoroethylene, low molecular weight polytetrafluoroethylene, and powder202010,538,605Method for producing low molecular weight polytetrafluoroethylene, low molecular weight polytetrafluoroethylene, and powder202010,525,834Vehicle charge control device to correct a state of charge202010,115,567Plasma processing apparatus20189,871,395'Charging control device'20189,708,453'Method for producing porous polymer film and porous polymer film'20179,622,672'Digitally invertible universal amplifier for recording and processing of bioelectric signals'20179,594,930'Extended analog computer apparatus'20179,532,479'Input/output module'20169,366,989'Image forming apparatus'20169,316,954'Image forming apparatus'20169,152,090'Image forming apparatus that suppresses deterioration in image quality'20158,988,029'Motor driving control device'20158,873,982'Image forming apparatus with mechanism capable of moving transfer device with respect to toner image carrier and image forming method for moving transfer device with respect to toner image carrier'20148,824,940'Image forming apparatus including heat transmission member'20148,811,834'Image forming apparatus'20148,731,420'Image forming apparatus and methods of setting transfer current and forming image'20148,620,188'Image forming apparatus having a special color image mode'20138,488,980'Image forming apparatus capable of forming high quality toner image on uneven surface sheet'20138,340,542'Image forming apparatus for improving transfer efficiency and preventing image deterioration'20128,301,064'Image forming apparatus including pressers configured to press a receptor to image bearers downward in the vertical direction'20128,280,283'Heat transmission member included image forming apparatus'20128,275,275'Image forming apparatus'20128,270,885'Image forming apparatus utilizing plural pressers of different weights and image forming method forming an image with the image forming apparatus'20127,813,662'Transfer unit and image forming apparatus using the unit'20107,639,976'Image forming apparatus'20097,610,004'Apparatus for detecting amount of toner deposit and controlling density of image, method of forming misalignment correction pattern, and apparatus for detecting and correcting misalignment of image'20097,542,713'Image forming apparatus capable of effectively forming a quality image without causing a vermiculate-like false image'20097,298,999'Image forming apparatus providing an ideal contact pressure of a primary transfer unit'20077,280,792'Method for evaluating changes in resistance of electric resistance member and image forming apparatus using same'20077,203,433'Apparatus for detecting amount of toner deposit and controlling density of image, method of forming misalignment correction pattern, and apparatus for detecting and correcting misalignment of image'20077,162,179'Image forming apparatus'20077,003,238'Intermediate image transfer device for a color image forming apparatus'20065,493,136'Field effect transistor and method of manufacturing the same'19964,729,618'Integrated optic circuit'19884,523,635'Metal hydride heat pump system'19854,457,136'Metal hydride reactor'19844,422,500'Metal hydride heat pump'19834,409,799'Heat pump device'19834,402,915'Metal hydride reactor'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1985Patents assigned to SEIKISUI CHEMICAL CO LTD (5)· patent assignee history
1983–1985Based in Ibaraki, JP· patent location history
1988–2020Based in Osaka, JP· patent location history
2006–2010Patents assigned to RICOH KK (9)· patent assignee history
2006–2009Based in Tokyo, JP· patent location history
2009–2014Based in Chigasaki, JP· patent location history
2009–2016Based in Kanagawa, JP· patent location history
2012–2018Patents assigned to YOSHIDA KEN (15)· patent assignee history
2012–2016Patents assigned to RICOH CO LTD (14)· patent assignee history
2020Patents assigned to DAIKIN IND LTD (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
YOSHIDA KENself152012–2018
RICOH CO LTD142012–2016
RICOH KK92006–2010
SEIKISUI CHEMICAL CO LTD51983–1985
DAIKIN IND LTD32020
Locations
LocationPatentsSpan
Chigasaki, JP92009–2014
Kanagawa, JP82009–2016
Tokyo, JP62006–2009
Osaka, JP41988–2020
Ibaraki, JP41983–1985