Inventor

Makoto Kitahara

Inventor

Tokyo, JP

Overview

43→

Patents

1978–2018

Patent span

Physics

Primary field (CPC G)

Patents· 43 as inventor

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

G03Gprimary

G03GElectrography50%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them12%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments10%

B65HHandling thin or filamentary material, e.g. sheets, webs, cables7%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%

H04NPictorial communication, e.g. television4%

Y10TTechnical subjects covered by former us classification3%

B41JTypewriters1%

B42CBookbinding1%

C07CAcyclic or carbocyclic compounds1%

PatentTitleYear

9,928,956'Permanent magnet and manufacturing method therefor'2018 7,149,461'Image forming apparatus with magnetic member in feeding supply tube/screw assembly'2006 7,050,744'Image forming apparatus'2006 7,016,625'Airflow around electrical circuit of image forming apparatus'2006 6,873,822'Image forming apparatus'2005 6,778,798'Rotating force transmitting apparatus and image forming apparatus equipped with the same'2004 6,496,679'Pivotally movable abutment mechanism, charging device and image forming apparatus'2002 5,273,266'Reserving-type original feeding apparatus'1993 5,252,018'Sheet binder'1993 5,197,724'Image forming device having original document feeder'1993 5,186,454'Apparatus for distributing sheet members'1993 5,181,705'Sheet discharging device that chooses a sheet discharging speed according to the sheet\'s length or rigidity'1993 5,176,375'Sheet feeding apparatus'1993 5,156,386'Original document feeder'1992 5,119,145'Original handling apparatus in which the exchange time of originals is shortened'1992 5,110,104'Sheet transporting device with carriage unit'1992 5,052,669'Automatic document feeder'1991 4,935,775'Automatic document feeder with an image area designating device for duplex copying'1990 4,900,009'Sorter'1990 4,866,536'Image recording apparatus'1989 4,819,023'Automatic document feeder for automatically feeding a plurality of stacks of originals'1989 4,769,674'Original feeding device'1988 4,761,001'Automatic document feeder'1988 4,673,630'Photoconductive film and electrophotographic photosensitive member contains azulenium salt'1987 4,627,709'Automatic sheet feeder and an image recording apparatus provided therewith'1986 4,622,594'Image recording apparatus'1986 4,598,323'Image processing apparatus'1986 4,554,231'Electrophotographic photosensitive member'1985 4,500,619'Electrophotographic photosensitive member with oxadiazole containing disazo compound'1985 4,487,824'Electrophotographic photosensitive member containing a halogen substituted hydrazone'1984 4,485,159'Laminate type electrophotographic light-sensitive material'1984 4,471,040'Electrophotographic disazo photosensitive member'1984 4,419,428'Electrophotographic light-sensitive media having a dis-azo compound'1983 4,413,045'Multilayer electrophotographic photosensitive member comprises disazo charge generator layer, hydrazone transport layer'1983 4,399,207'Electrophotographic photosensitive member with hydrazone compound'1983 4,399,206'Disazo electrophotographic photosensitive member'1983 4,391,889'Electrophotographic photosensitive member with benzimidazole ring containing hydrazones'1983 4,390,611'Electrophotographic photosensitive azo pigment containing members'1983 4,359,513'Electrophotographic light-sensitive disazo compounds having diphenylacrylonitrile group'1982 4,359,515'Disazo electrophotographic light-sensitive media'1982 4,356,243'Electrophotographic media with benzoxazole group containing dis-azo compound'1982 4,268,595'Electrostatic recording material and method for the production thereof'1981 4,097,646'Electrostatic recording material having a dielectric copolymer coated layer'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1985Patents assigned to COPYER CO (10)· patent assignee history

1978–1993Based in Tokyo, JP· patent location history

1983–2006Patents assigned to CANON KK (36)· patent assignee history

1983–2018Patents assigned to KITAHARA MAKOTO (2)· patent assignee history

1983Patents assigned to ISHIKAWA SHOZO (1)· patent assignee history

1983–1987Based in Yokohama, JP· patent location history

1993Patents assigned to CANON APTEX INC (1)· patent assignee history

2002–2005Based in Chiba, JP· patent location history

2006Based in Abiko, JP· patent location history

2018Based in Toyota, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CANON KK	36	1983–2006
COPYER CO	10	1978–1985
KITAHARA MAKOTOself	2	1983–2018
CANON APTEX INC	1	1993
ISHIKAWA SHOZO	1	1983

Locations

Location	Patents	Span
Tokyo, JP	26	1978–1993
Yokohama, JP	8	1983–1987
Abiko, JP	3	2006
Chiba, JP	3	2002–2005
Toyota, JP	1	2018