LexDanaLexDanabeta
Inventor

Jun Azuma

Inventor
Osaka, JP

Overview

60→
Patents
1986–2021
Patent span
Physics
Primary field (CPC G)

Patents· 60 as inventor

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

G03Gprimary
G03GElectrography55%
B41JTypewriters5%
C07CAcyclic or carbocyclic compounds5%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments5%
C08LCompositions of macromolecular compounds3%
H04NPictorial communication, e.g. television3%
G02BOptical elements, systems or apparatus2%
G06KGraphical data reading2%
A61KPreparations for medical, dental or toiletry purposes1%
PatentTitleYear
11,067,909Terphenyl compound, electrophotographic photosensitive member, and method for producing terphenyl compound202110,996,575Electrophotographic photosensitive member, process cartridge, and image forming apparatus202110,871,723Electrophotographic photosensitive member and image forming apparatus202010,795,273Bis-butadiene derivative and electrophotographic photosensitive member202010,761,440Electrophotographic photosensitive member, process cartridge, and image forming apparatus202010,761,441Production method for electrophotographic photosensitive member202010,761,439Polyarylate resin and electrophotographic photosensitive member202010,732,526Electrophotographic photosensitive member, process cartridge, and image forming apparatus202010,730,819Naphthalenedicarboxylic acid dichloride production method202010,649,351Electrophotographic photosensitive member, process cartridge, and image forming apparatus202010,509,309Polyarylate resin and electrophotographic photosensitive member201910,379,451Polyarylate resin and electrophotographic photosensitive member201910,372,048Electrophotographic photosensitive member201910,359,713Electrophotographic photosensitive member, process cartridge, and image forming apparatus201910,295,918Electrophotographic photosensitive member, process cartridge, and image forming apparatus201910,273,331Polyarylate resin and electrophotographic photosensitive member201910,191,397Electrophotographic photosensitive member, process cartridge, and image forming apparatus201910,031,431Electrophotographic photosensitive member20189,964,869Triarylamine derivative, electrophotographic photosensitive member, and method for producing electrophotographic photosensitive member20189,939,744Multi-layer electrophotographic photosensitive member20189,933,712Multi-layer electrophotographic photosensitive member, process cartridge, and image forming apparatus20189,829,811Electrophotographic photosensitive member, process cartridge, and image forming apparatus20179,575,423'Electrophotographic photosensitive member'20179,448,496'Electrophotographic photosensitive member'20169,436,104'Electrophotographic photosensitive member and image forming apparatus'20169,429,859'Electrophotographic photosensitive member'20169,133,227'Production methods for solubilized lignin, saccharide raw material and monosaccharide raw material, and solubilized lignin'20158,765,337'Multilayer type electrophotographic photoconductor and image forming apparatus'20148,686,133'Oxo-titanylphthalocyanine crystal, method for producing the same and electrophotographic photoreceptor'20148,660,459'Drum unit having side seals and image-forming apparatus including the same'20148,242,261'Oxo-titanylphthalocyanine crystal, method for producing the same, and electrophotographic photoreceptor'20127,855,286'Titanyl phthalocyanin crystal, method for preparing the same and electrophotographic photoconductor'20107,693,454'Image forming apparatus'20107,468,230'Wet-developing electrophotographic photoconductor and wet-developing image'20087,399,564'Electrophotographic photoconductor'20087,101,647'Electrophotosensitive material'20067,090,952'Electrophotosensitive material'20067,057,034'Titanyl phthalocyanine crystal and production method of the same, and electrophotosensitive material'20067,029,811'Electrophotographic photoreceptor'20066,879,794'Image forming apparatus'20056,858,368'Electrophotographic photoreceptor and image forming device'20056,593,047'Single-layer type electrophotosensitive material'20036,573,017'Single-layer type electrophotosensitive material'20036,461,779'Single-layer type electrophotosensitive material'20026,444,385'Electrophotosensitive material and method of producing the same'20026,084,622'Frame structure and an image forming apparatus using such a frame structure'20006,035,159'Process cartridge with axially shiftable drive coupling'20005,907,745'Image forming apparatus having arrangement of sheet support members and air ducts'19995,900,961'Scanning optical device'19995,708,922'Guide means and electrophotographic image forming apparatus'19985,634,178'Gear unit, image forming apparatus and gear unit mounting method'19975,621,451'Image forming apparatus'19975,561,496'Image forming apparatus, assembling method of image forming apparatus, and mounting method of outer casing'19965,559,581'Image forming apparatus with helical gear drive train'19965,479,201'Optical beam scanner with circuit board mounted elements'19955,351,264'Optical apparatus for emitting light and automatic adjustment apparatus therefor'19944,977,412'Optical scanning device'19904,907,017'Laser optical apparatus'19904,833,502'Image forming apparatus having an image bearing member reciprocally movable in the direction of the rotational axis thereof'19894,565,830'Method of ameliorating the subjective symptoms and objective signs in congestive heart failure'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2000Patents assigned to CANON KK (14)· patent assignee history
1989–1990Based in Tokyo, JP· patent location history
1994–2000Based in Kawasaki, JP· patent location history
1998–1999Based in Yokohama, JP· patent location history
2002–2014Patents assigned to KYOCERA MITA CORP (16)· patent assignee history
2002–2021Based in Osaka, JP· patent location history
2012–2014Patents assigned to AZUMA JUN (4)· patent assignee history
2012–2014Patents assigned to MARUO KEIJI (3)· patent assignee history
2014–2021Patents assigned to KYOCERA DOCUMENT SOLUTIONS INC (28)· patent assignee history
2015Based in Kyoto, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KYOCERA DOCUMENT SOLUTIONS INC282014–2021
KYOCERA MITA CORP162002–2014
CANON KK141989–2000
AZUMA JUNself42012–2014
MARUO KEIJI32012–2014
Locations
LocationPatentsSpan
Osaka, JP442002–2021
Kawasaki, JP81994–2000
Tokyo, JP31989–1990
Yokohama, JP21998–1999
Kyoto, JP12015