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Inventor

Katsuo Koizumi

Inventor
Tokyo, JP

Overview

9→
Patents
1984–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 9 as inventor

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

H01Fprimary
H01FMagnets21%
H01GCapacitors21%
Y10TTechnical subjects covered by former us classification21%
G03GElectrography14%
B27CPlaning, drilling, milling, turning or universal machines for wood or similar material7%
B27FDovetailed work7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
PatentTitleYear
10,541,086Laminated ceramic electronic component20208,139,341'Film capacitor'20127,929,271'Film capacitor'20117,169,526'Toner for the development of electrostatic image and the production process thereof'20076,727,792'Method of manufacturing wire wound electronic component'20046,449,830'Method of manufacturing wire wound electronic component'20026,144,280'Wire wound electronic component and method of manufacturing the same'20005,360,691'Carrier for developing electrostatic latent images, developer, and electrophotographic developing process'19944,442,878'Hand-held power tool with a mechanism'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984Patents assigned to HITACHI KOKI KK (1)· patent assignee history
1984Based in Katsuta, JP· patent location history
1994–2007Based in Kanagawa, JP· patent location history
2000–2020Patents assigned to TAIYO YUDEN KK (4)· patent assignee history
2000–2004Based in Tokyo, JP· patent location history
2011–2012Patents assigned to SOSHIN ELECTRIC (2)· patent assignee history
2011–2012Based in Miyakonojo, JP· patent location history
2012Patents assigned to KATO YOSHIKUNI (1)· patent assignee history
2012Patents assigned to KOIZUMI KATSUO (1)· patent assignee history
2020Based in Takasaki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TAIYO YUDEN KK42000–2020
SOSHIN ELECTRIC22011–2012
HITACHI KOKI KK11984
KATO YOSHIKUNI12012
KOIZUMI KATSUOself12012
Locations
LocationPatentsSpan
Tokyo, JP32000–2004
Miyakonojo, JP22011–2012
Kanagawa, JP21994–2007
Takasaki, JP12020
Katsuta, JP11984