Shigematsu Works Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A62B DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING 829
 
  
 
A41D OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES 233
 
  
 
A41H APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING, FOR TAILORING, NOT OTHERWISE PROVIDED FOR 17
 
  
 
A61M DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY 1153
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING172
 
  
 
2902 DEVICES AND EQUIPMENT FOR ACCIDENT PREVENTION AND FOR RESCUE, NOT ELSEWHERE SPECIFIED123

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0271,429 BREATHING APPARATUSApr 28, 14Sep 22, 16[A62B]
2016/0236,016 BREATHING APPARATUSFeb 12, 15Aug 18, 16[A62B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9155921 Chemical protective suitAug 26, 10Oct 13, 15[A41H, A41D, A62B]
9107463 Method for integrating multi-layer sheet fabric pieces for use in a chemical protective suitAug 26, 10Aug 18, 15[A41H, A41D, A62B]
8905018 Breathing apparatusOct 01, 10Dec 09, 14[A62B]
8671943 Breathing apparatusSep 17, 08Mar 18, 14[F16K, A62B]
D602154 Whole face covering maskJan 24, 08Oct 13, 09[2902]
7464705 Powered respiratorOct 06, 05Dec 16, 08[A62B]
7086400 MaskMay 02, 03Aug 08, 06[A62B]
5829433 Inhalation valveJul 01, 96Nov 03, 98[A61M]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0318,694 CHEMICAL PROTECTIVE SUITAbandonedFeb 10, 11Dec 05, 13[A62B]
2013/0152,948 MASK FILTER AND METHOD OF MANUFACTURING THE SAME, AND PARTICLE-TRAPPING MASKAbandonedAug 03, 11Jun 20, 13[A41D]
2012/0097,167 MASK WITH NOSAL CUSHIONAbandonedSep 30, 09Apr 26, 12[A62B]
2012/0000,473 MASKAbandonedSep 30, 09Jan 05, 12[A41D, A62B]
4991577 Exhalation valve means of a respiration maskExpiredSep 26, 88Feb 12, 91[A62B]
4892094 Pressure responsive diaphragm valveExpiredNov 18, 88Jan 09, 90[A61M]
4752974 Air-feed type dust protective helmetExpiredDec 04, 86Jun 28, 88[A42B]
4748695 Face shield assemblyExpiredDec 04, 86Jun 07, 88[A61F, A42B]
4501272 MaskExpiredOct 28, 82Feb 26, 85[A62B]

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