LexDanaLexDanabeta
Inventor

Tadashi Horikawa

Inventor
Numazu, JP

Overview

37→
Patents
1996–2020
Patent span
Physics
Primary field (CPC G)

Patents· 37 as inventor

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

G03Gprimary
G03GElectrography70%
LOC1624%
G01DMeasuring not specially adapted for a specific variable3%
H03MCoding3%
PatentTitleYear
10,678,184Image forming apparatus and cartridge202010,649,394Method of manufacturing frame unit, method of manufacturing image carrying unit, method of manufacturing cartridge, and cartridge202010,627,780Cartridge and image forming apparatus202010,564,597Method for manufacturing image bearing unit and method for manufacturing cartridge2020D0873341Process cartridge for image forming apparatus202010,520,883Method for manufacturing image bearing unit and method for manufacturing cartridge201910,488,817Cartridge and image forming apparatus20199,946,195Developer container developing device process cartridge and image forming apparatus20189,846,386Developer container, developing device, process cartridge, and image forming apparatus20179,389,578'Image-forming apparatus'20169,280,136'Photosensitive cartridge having locking member, developing cartridge attachable to photosensitive cartridge having locking member, process cartridge having locking member, and image forming apparatus having locking member'20169,213,267'Developing device frame unit, developing device, process cartridge, and manufacturing method of the developing device frame unit'20159,182,733'Developer supply cartridge, process cartridge and image forming apparatus'20158,682,211'Developing device frame unit, developing device, process cartridge, and manufacturing method of the developing device frame unit'20148,526,846'Process cartridge and image forming apparatus'20138,515,306'Cartridge and image forming apparatus'20138,249,485'Process cartridge with portions to be supported and regulated during insertion of the cartridge into an electrophotographic image forming apparatus'20127,979,009'Developer supplying cartridge including a developer supplying port shutter portion and electrophotographic image forming apparatus using the cartridge'2011D0639846'Process cartridge'2011D0639335'Process cartridge'2011D0638056'Process cartridge'2011D0638057'Process cartridge'20117,933,534'Developing device frame unit, developing device, process cartridge, and manufacturing method of the developing device frame unit'2011D0599846'Process cartridge'2009D0599847'Toner cartridge'20097,386,241'Processing cartridge rotating a drum shaft in different directions and image forming apparatus mounting such a cartridge'20087,366,440'Process cartridge feeding developer from first to second removed developer accommodating portions and image forming apparatus to which the cartridge is mountable'20086,681,088'Process cartridge, image forming apparatus and separating mechanism for separating developing member from photosensitive drum'20046,587,660'Developing apparatus'2003D0474497'Image forming apparatus'2003D0474232'Image forming apparatus'20036,553,189'Optical guide, process cartridge, and electrophotographic image forming apparatus'20036,549,735'Developing apparatus with longitudinal end leakage preventing member in contact with smooth surface part of a developer carrying member'20036,385,416'Space securing member, developing device, charging device and process cartridge'20026,195,515'Developing apparatus including a seal member sandwiched between a developer bearing member and a leakage preventing member'20016,144,820'Developing apparatus with a sealing member having an insulating layer and a conductive portion'20005,565,864'Absolute encoder'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996Based in Kawasaki, JP· patent location history
2000–2020Patents assigned to CANON KK (35)· patent assignee history
2000–2004Based in Susono, JP· patent location history
2003–2009Based in Shizuoka, JP· patent location history
2008–2020Based in Numazu, JP· patent location history
2012–2014Patents assigned to HORIKAWA TADASHI (4)· patent assignee history
2012–2013Patents assigned to KAWAI TACHIO (2)· patent assignee history
2012–2013Patents assigned to NAKANISHI TAKASHI (2)· patent assignee history
2012–2013Patents assigned to TAKARADA HIROSHI (2)· patent assignee history
2020Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CANON KK352000–2020
HORIKAWA TADASHIself42012–2014
KAWAI TACHIO22012–2013
NAKANISHI TAKASHI22012–2013
TAKARADA HIROSHI22012–2013
Locations
LocationPatentsSpan
Numazu, JP242008–2020
Susono, JP72000–2004
Shizuoka, JP42003–2009
Tokyo, JP12020
Kawasaki, JP11996