Kiyohara; Masako

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING667

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5485984 Diaphragm valveMay 27, 94Jan 23, 96[F16K]
5295662 Fluid flow-controller with improved diaphragmMar 22, 93Mar 22, 94[F16K]
5188338 Fluid flow controllerDec 23, 91Feb 23, 93[F16K]
5186434 Fluid flow controllerApr 08, 92Feb 16, 93[F16K]
5178366 Valve sealFeb 07, 92Jan 12, 93[F16K]
5107885 Check valveFeb 05, 91Apr 28, 92[F16K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5488967 Method and apparatus for feeding gas into a chamberExpiredOct 21, 94Feb 06, 96[F16K]
5469885 Block valve with tank chamberExpiredOct 21, 94Nov 28, 95[F16K]
5439197 Flow rate control valveExpiredAug 31, 94Aug 08, 95[F16K]
5440096 Welding process with delayed application of full current until after start of arcExpiredJul 05, 94Aug 08, 95[B23K]
4967996 Pilot type controlled electromagnetic valve systemExpiredJun 19, 89Nov 06, 90[F16K]

Top Inventors for This Owner

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