Hitachi ULSI Engineering Co.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G11C STATIC STORES 2149
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 1361

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5973964 Flash memory control method and information processing system therewithOct 30, 98Oct 26, 99[G11C]
5946565 Semiconductor integrated circuit device and process for manufacturing the sameJun 23, 97Aug 31, 99[H01L]
5832248 Semiconductor integrated circuit having CPU and multiplierNov 08, 95Nov 03, 98[G06F]
5781476 Nonvolatile semiconductor memory deviceJun 01, 95Jul 14, 98[G11C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6389523 Cache memory employing dynamically controlled data array start timing and a microprocessor using the sameExpiredApr 25, 00May 14, 02[G06F]
6157576 Nonvolatile semiconductor memory deviceExpiredSep 10, 99Dec 05, 00[G11C]
5959894 Nonvolatile semiconductor memory deviceExpiredJun 17, 98Sep 28, 99[G11C]
5949097 Semiconductor device, method for manufacturing same, communication system and electric circuit systemExpiredSep 17, 97Sep 07, 99[H01L]
5860127 Cache memory employing dynamically controlled data array start timing and a microcomputer using the sameExpiredMay 24, 96Jan 12, 99[G06F]
5780328 Process for producing semiconductor integrated circuitExpiredApr 07, 97Jul 14, 98[H01L]
5774731 Exclusive control method with each node controlling issue of an exclusive use request to a shared resource, a computer system therefor and a computer system with a circuit for detecting writing of an event flag into a shared main storageExpiredJul 05, 96Jun 30, 98[G06F]

Top Inventors for This Owner

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