HITACHI TOKYO ELECTRONICS CO., LTD.
Patent Owner
Stats
- 9 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Oct 15, 2013 most recent publication
Details
- 9 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 610 Total Citation Count
- Aug 06, 1985 Earliest Filing
- 19 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
6664549 Wafer chuck, exposure system, and method of manufacturing semiconductor deviceJul 29, 02Dec 16, 03[H01L]
6583414 Method of inspecting pattern and inspecting instrumentNov 30, 00Jun 24, 03[H01J, G21K, G01N]
5482524 Atmospheric pressure, elevated temperature gas desorption apparatusAug 03, 94Jan 09, 96[B01D]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
7163886 Semiconductor integrated circuit device and process for manufacturing the sameExpiredAug 13, 04Jan 16, 07[H01L]
6400020 Aggregate of semiconductor devices including semiconductor packages arranged on a first tape and wound on a reel and also including a spacer tape provided with spacersExpiredApr 25, 00Jun 04, 02[H01L]
5304797 Gas analyzer for determining impurity concentration of highly-purified gasExpiredFeb 11, 93Apr 19, 94[H01J]
5062771 Vacuum system with a secondary gas also connected to the roughing pump for a semiconductor processing chamberExpiredMar 20, 89Nov 05, 91[F04D]
5060841 wire bonding method and apparatus and method of producing semiconductor device by use of wire bonding apparatusExpiredOct 02, 90Oct 29, 91[H01L, H05K]
5031821 Semiconductor integrated circuit device, method for producing or assembling same, and producing or assembling apparatus for use in the methodExpiredAug 16, 89Jul 16, 91[H01L, B23K]
4835114 Method for LPCVD of semiconductors using oil free vacuum pumpsExpiredFeb 19, 87May 30, 89[B05D, H01C]
4701608 Projection aligner with a sensor for monitoring light quantityExpiredJan 29, 86Oct 20, 87[G01J, G05D]
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