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Inventor

Junichi Kumagai

Inventor
Aizuwakamatsu, JP

Overview

9→
Patents
1983–2012
Patent span
Chemistry
Primary field (CPC C)

Patents· 9 as inventor

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

C22Cprimary
C22CAlloys38%
C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys15%
G09GArrangements or circuits for control of indicating devices using static means to present variable information15%
B42FSheets temporarily attached together8%
G03GElectrography8%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h108%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
8,319,705'Plasma display device and driving method using all cell reset and on cell reset operations'20128,207,912'Driving method for plasma display panel and plasma display device'20127,485,200'Copper alloy and method of manufacturing the same'20097,338,631'Copper alloy and method of manufacturing the same'20087,032,274'Fittings for use in files'20065,997,810'High-strength copper based alloy free from smutting during pretreatment for plating'19995,885,376'Corrosion-resistant high-strength copper based alloy having excellent blankability'19995,463,247'Lead frame material formed of copper alloy for resin sealed type semiconductor devices'19954,386,839'Electrostatic copying apparatus'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983Based in Tokyo, JP· patent location history
1995–2009Patents assigned to MITSUBISHI SHINDO KK (5)· patent assignee history
1995–2009Based in Aizuwakamatsu, JP· patent location history
2006Based in Matsudo, JP· patent location history
2012Patents assigned to HITACHI LTD (2)· patent assignee history
2012Patents assigned to ITO KATSUMI (2)· patent assignee history
2012Patents assigned to KUMAGAI JUNICHI (2)· patent assignee history
2012Patents assigned to HASHIMOTO YASUNOBU (1)· patent assignee history
2012Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI SHINDO KK51995–2009
HITACHI LTD22012
ITO KATSUMI22012
KUMAGAI JUNICHIself22012
HASHIMOTO YASUNOBU12012
Locations
LocationPatentsSpan
Aizuwakamatsu, JP51995–2009
Yokohama, JP22012
Matsudo, JP12006
Tokyo, JP11983