Inventor

Masaru Ohno

Inventor

Ebina, JP

Overview

1983–2020

Patent span

Physics

Primary field (CPC G)

Patents· 24 as inventor

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

G03Gprimary

G03GElectrography96%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation4%

PatentTitleYear

10,627,749Image forming apparatus having transfer power source that applies voltage to secondary transfer member to perform secondary transfer of toner images from electrically conductive intermediate transfer belt to recording materials, toner images on image carrier primarily transferred to belt by transfer power source and contact member in which an electric potential is formed by constant-voltage element, transfer power source and auxiliary power source2020 10,459,361Image forming apparatus with voltage adjustment member2019 10,216,119Image forming apparatus with adjustment of potential for secondary transfer2019 10,180,643Image forming apparatus having intermediate transfer belt, secondary transfer member that contacts outer surface of intermediate transfer belt, opposed member opposed to secondary transfer member via intermediate transfer belt, contact member that contacts inner surface of intermediate transfer belt, and constant-voltage element through which opposed member and contact member are grounded2019 10,120,322Image forming apparatus2018 10,078,297Image forming apparatus2018 9,817,342'Image forming apparatus using stretch member and contact member to maintain potential with a current flowing to intermediate transer belt'2017 9,519,238'Image forming apparatus with photoconductor drum preservation'2016 9,507,295'Image forming apparatus'2016 9,494,894'Image forming apparatus'2016 9,454,108'Image forming apparatus'2016 9,417,568'Image forming apparatus using stretch member and contact member to maintain potential with a current flowing to intermediate transfer belt'2016 9,395,655'Image forming apparatus'2016 9,256,187'Image forming apparatus using two power supply units to control transfer current'2016 9,250,576'Image forming apparatus'2016 9,176,436'Image forming apparatus with a brush member configured to charge untransferred developer material'2015 9,158,238'Image forming apparatus using stretch member and contact member to maintain potential with current flowing from current supply member to intermediate transfer belt'2015 9,081,354'Image forming apparatus'2015 9,063,497'Image forming apparatus having a power supply common to primary transfer and secondary transfer'2015 9,046,861'Image-forming apparatus'2015 9,002,227'Image forming apparatus'2015 8,909,111'Image forming apparatus'2014 D0278817'Facsimile Transceiver'1985 4,376,795'Method of producing image sensor'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (1)· patent assignee history

1983Patents assigned to MATSUSHITA GRAPHIC COMMUNIC (1)· patent assignee history

1983Patents assigned to NIPPON TELEGRAPH & TELEPHONE (1)· patent assignee history

1983Based in Kashiwa, JP· patent location history

1985Patents assigned to Matsushita Graphic Communication System (1)· patent assignee history

1985Based in Chiba, JP· patent location history

2014–2020Patents assigned to CANON KK (22)· patent assignee history

2014–2020Based in Ebina, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CANON KK	22	2014–2020
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD	1	1983
MATSUSHITA GRAPHIC COMMUNIC	1	1983
Matsushita Graphic Communication System	1	1985
NIPPON TELEGRAPH & TELEPHONE	1	1983

Locations

Location	Patents	Span
Ebina, JP	22	2014–2020
Chiba, JP	1	1985
Kashiwa, JP	1	1983