Inventor

Tadao Kushima

Inventor

Ibaraki, JP

Overview

8→

Patents

1985–2006

Patent span

Electricity

Primary field (CPC H)

Patents· 8 as inventor

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

H10Wprimary

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1038%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems14%

H10DInorganic electric semiconductor devices14%

H05KPrinted circuits10%

Y10TTechnical subjects covered by former us classification10%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation5%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution5%

Y02PClimate change mitigation technologies in the production or processing of goods5%

PatentTitleYear

7,141,741'Circuit board'2006 6,441,317'Semiconductor module and inverter device'2002 6,434,008'Semiconductor device'2002 5,956,231'Semiconductor device having power semiconductor elements'1999 4,906,823'Solder carrier, manufacturing method thereof and method of mounting semiconductor devices by utilizing same'1990 4,825,284'Semiconductor resin package structure'1989 4,562,637'Method of manufacturing solar battery'1986 4,503,597'Method of forming a number of solder layers on a semiconductor wafer'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–2002Patents assigned to HITACHI LTD (7)· patent assignee history

1985–1999Based in Ibaraki, JP· patent location history

1999–2006Patents assigned to HITACHI HARAMACHI ELECTRONICS (3)· patent assignee history

2002–2006Based in Tokai, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	7	1985–2002
HITACHI HARAMACHI ELECTRONICS	3	1999–2006

Locations

Location	Patents	Span
Ibaraki, JP	5	1985–1999
Tokai, JP	3	2002–2006