LexDanaLexDanabeta
Inventor

Hiroaki Kumagai

Inventor
Kawasaki, JP

Overview

13→
Patents
1993–2020
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 13 as inventor

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

Y10Tprimary
Y10TTechnical subjects covered by former us classification16%
G03GElectrography14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
C07DHeterocyclic compounds5%
F04DNon-positive-displacement pumps5%
G03CPhotosensitive materials for photographic purposes5%
G11BInformation storage based on relative movement between record carrier and transducer5%
H02KDynamo-electric machines5%
A61BDiagnosis3%
B29CShaping or joining of plastics3%
PatentTitleYear
10,767,657Axial alignment structure for fluid pressure pump202010,533,579Electric pump and mounting structure of electric pump20206,847,096'Semiconductor wafer having discharge structure to substrate'20055,939,337'Toner fixation film and toner fixation apparatus using it'19995,863,660'Fixing member and fixing apparatus including same'19995,763,068'Fluororesin-coated member, production method therefor and heat fixing device using the coated member'19985,765,086'Heat fixing belt with conductive aluminum layer toner release layer and elastic layer disposed therebetween'19985,753,348'Fluororesin tube-covered fixing roller, and image formation apparatus'19985,628,314'Multi-laser beam-scanning through living body penetration diagnosis and treatment apparatus'19975,608,508'Rotatable member for fixing in which inorganic filler is contained in silicone rubber, and fixing device having the same'19975,392,156'Optical device'19955,320,936'Photo responsive material employing a thiophene derivative having long conjugated chain at 3-position'19945,247,098'Thiophene derivative having long conjugated chain at 3-position, and photo-responsive material imploying the same'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–1999Patents assigned to CANON KK (9)· patent assignee history
1993–1994Based in Tokyo, JP· patent location history
1995–1999Based in Kawasaki, JP· patent location history
1998–1999Based in Yonago, JP· patent location history
2005Patents assigned to OKI ELECTRIC IND CO LTD (1)· patent assignee history
2005Based in Miyagi, JP· patent location history
2020Patents assigned to AISIN SEIKI (2)· patent assignee history
2020Based in Kariya, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CANON KK91993–1999
AISIN SEIKI22020
OKI ELECTRIC IND CO LTD12005
Locations
LocationPatentsSpan
Kawasaki, JP51995–1999
Kariya, JP22020
Yonago, JP21998–1999
Tokyo, JP21993–1994
Miyagi, JP12005