Masako Kiyohara

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 AERATING469

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5295662 Fluid flow-controller with improved diaphragmMar 22, 93Mar 22, 94[F16K]
5178366 Valve sealFeb 07, 92Jan 12, 93[F16K]
5161571 Check valveDec 10, 91Nov 10, 92[F16K]
5107885 Check valveFeb 05, 91Apr 28, 92[F16K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5439197 Flow rate control valveExpiredAug 31, 94Aug 08, 95[F16K]
4967996 Pilot type controlled electromagnetic valve systemExpiredJun 19, 89Nov 06, 90[F16K]

Top Inventors for This Owner

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