Sokkisha Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01Q AERIALS 1109

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5475395 Reflecting mirror-equipped GPS receiving antenna apparatusSep 15, 94Dec 12, 95[H01Q]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
D338206 Antenna for a satellite location measuring receiverExpiredOct 07, 91Aug 10, 93[]
D335822 Satellite location measuring receiverExpiredAug 30, 91May 25, 93[]
5204731 Method and apparatus for measuring the coordinates of a surveyed pointExpiredNov 28, 90Apr 20, 93[G01C, G01B]
D326281 PaperweightExpiredMay 09, 89May 19, 92[]
5093839 Frequency diversity receiving system based on cancellation of C/A code in GPSExpiredJan 02, 91Mar 03, 92[H04K]
4898452 Apparatus for mounting target plate on reflector for electronic distance meterExpiredJul 22, 88Feb 06, 90[G01L, G02B]
4854704 Optical automatic levelling apparatusExpiredJan 14, 88Aug 08, 89[G01C]
4731580 Displacement sensing device with two magnetoresistance element sections used independentlyExpiredJul 15, 85Mar 15, 88[H01L, G01N, G01R]
4672317 Multi-gap head apparatus for use with a magnetic scaleExpiredAug 01, 85Jun 09, 87[G01B, G01R]
4663853 Mechanism for mounting measuring system using magnetic scaleExpiredJul 26, 85May 12, 87[G01B]
4621436 Position detecting apparatusExpiredJun 18, 85Nov 11, 86[G01B]
4605282 Line lens and method of design thereforExpiredDec 22, 83Aug 12, 86[G02B]
4550482 Method of constructing a beam spread lensExpiredDec 22, 83Nov 05, 85[B23P]
4519674 Retro-reflective prism assemblyExpiredApr 04, 83May 28, 85[G02B, G01C]
4343550 Universally adjustable ranging target and retro-reflector housing bracketExpiredMay 27, 80Aug 10, 82[G01C]
4311382 Universally adjustable ranging target and retro-reflector housing bracketExpiredFeb 04, 80Jan 19, 82[G02B, G01C]

Top Inventors for This Owner

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