Inventor

Keisuke Koga

Inventor

Kyoto, JP

Overview

1989–2014

Patent span

Electricity

Primary field (CPC H)

Patents· 26 as inventor

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

H01Jprimary

H01JElectric discharge tubes or discharge lamps56%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices8%

B82YSpecific uses or applications of nanostructures6%

H05KPrinted circuits6%

F24FAir-conditioning3%

F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact3%

G02BOptical elements, systems or apparatus3%

G09GArrangements or circuits for control of indicating devices using static means to present variable information3%

G21KHandling of particles or ionising radiation not otherwise provided for3%

H10DInorganic electric semiconductor devices3%

PatentTitleYear

8,857,500'Heat exchange device and heat generating element containing device using same'2014 8,713,959'Heat generating body box housing refrigeration device'2014 8,384,281'Matrix-type cold-cathode electron source device'2013 8,294,351'Matrix-type cold-cathode electron source device'2012 7,825,591'Mesh structure and field-emission electron source apparatus using the same'2010 7,588,475'Field-emission electron source, method of manufacturing the same, and image display apparatus'2009 7,365,481'Field emission device with change in emission property'2008 7,215,072'Field-emission electron source, method of manufacturing the same, and image display apparatus'2007 7,190,334'Driving method and driving apparatus for a field emission device'2007 7,112,920'Field emission source with plural emitters in an opening'2006 6,940,218'Doped field-emitter'2005 6,914,373'Electron lens and structure for a cold cathode of a cathode ray tube'2005 6,818,915'Field-emission electron source'2004 6,812,654'Field emission type electron source element, electron gun, cathode ray tube apparatus, and method for manufacturing cathode ray tube'2004 6,794,822'Field emission electron source, electron gun and cathode ray tube device using the same'2004 6,692,327'Method for producing electron emitting element'2004 6,661,166'Electron gun and cathode-ray tube'2003 6,400,091'Electron emission element and image output device'2002 5,925,891'Field-emission electron source'1999 5,909,033'Vacuum-sealed field-emission electron source and method of manufacturing the same'1999 5,897,790'Field-emission electron source and method of manufacturing the same'1999 5,494,179'Field-emitter having a sharp apex and small-apertured gate and method for fabricating emitter'1996 5,434,648'Proximity exposure method and machine therefor'1995 5,227,268'X-ray mask and its fabricating method-comprising a first and second alignment pattern'1993 4,948,238'Optical projection system'1990 4,870,289'Apparatus for controlling relation in position between a photomask and a wafer'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2008Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (17)· patent assignee history

1999–2008Based in Kyoto, JP· patent location history

2004–2010Based in Nishikamo-gun, JP· patent location history

2005–2009Based in Soraku-gun, JP· patent location history

2009–2014Patents assigned to PANASONIC CORP (6)· patent assignee history

2012–2014Patents assigned to KOGA KEISUKE (4)· patent assignee history

2012–2013Based in Ehime, JP· patent location history

2014Patents assigned to MATSUMOTO MUTSUHIKO (2)· patent assignee history

2014Patents assigned to NAKANO YUUJI (2)· patent assignee history

2014Based in Aichi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD	17	1989–2008
PANASONIC CORP	6	2009–2014
KOGA KEISUKEself	4	2012–2014
MATSUMOTO MUTSUHIKO	2	2014
NAKANO YUUJI	2	2014

Locations

Location	Patents	Span
Kyoto, JP	9	1999–2008
Nishikamo-gun, JP	4	2004–2010
Soraku-gun, JP	4	2005–2009
Aichi, JP	2	2014
Ehime, JP	2	2012–2013