Ohkura Electric Co., Ltd.

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
C30B SINGLE-CRYSTAL GROWTH 155
 
 
 
F23N REGULATING OR CONTROLLING COMBUSTION 120
 
 
 
G01G WEIGHING 127
 
 
 
G01K MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR 145
 
 
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 183

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6048095 External connection mechanism of temperature-measuring type for printed circuit boardFeb 23, 98Apr 11, 00[G01K]
5763838 Apparatus for weighing a grown crystalNov 23, 96Jun 09, 98[C30B, G01G]
5743464 System for controlling work temperature by a programmed controllerApr 17, 97Apr 28, 98[F23N, G05D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6624983 Mechanical dual stage actuator linkage for a hard disk driveExpiredFeb 28, 01Sep 23, 03[G11B]
5926390 Programmed temperature controllerExpiredMar 28, 97Jul 20, 99[G06F]
5369567 Furnace temperature cascade control apparatus using adjustment inputExpiredJun 24, 93Nov 29, 94[G05B, G06F, G05D]
5199071 Modem mode matching method with PBX dial-inExpiredJul 10, 90Mar 30, 93[H04M]
5153897 Automatically controlling the operation mode of data circuit terminating equipment in a communication systemExpiredJul 10, 90Oct 06, 92[H04L]
5099442 Furnace temperature control apparatus using adjustment inputExpiredOct 30, 90Mar 24, 92[G06F, G05D]
5081413 Method and apparatus for measuring AC powerExpiredFeb 13, 90Jan 14, 92[G01R]
5055814 Displacement detectorExpiredApr 21, 89Oct 08, 91[H01F]
4790288 Themostatic ovenExpiredSep 23, 87Dec 13, 88[F23M]
4688180 Pattern-switching temperature control apparatusExpiredDec 10, 85Aug 18, 87[G06F, F27D]
4688194 Multi-range controllerExpiredOct 25, 84Aug 18, 87[G06F]
4653329 Pressure detector and strain member thereforExpiredSep 30, 85Mar 31, 87[G01L]
4639852 Process control systemExpiredOct 03, 84Jan 27, 87[G06F]
4605161 Pattern-switching temperature control apparatusExpiredApr 22, 85Aug 12, 86[G05D]
4597291 Connectible instrument casingExpiredJul 31, 84Jul 01, 86[G12B]
4517838 Thermal mass flow meterExpiredNov 10, 83May 21, 85[G01F]
4255813 Dicode transmission systemExpiredNov 17, 78Mar 10, 81[H04L, H04B]

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.