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SUWA SEIKOSHA KK

Overview
  • Total Patents
    14,429
About

SUWA SEIKOSHA KK has a total of 14,429 patent applications. Its first patent ever was published in 1962. It filed its patents most often in Japan, United States and United Kingdom. Its main competitors in its focus markets measurement, semiconductors and optics are CITIZEN WATCH CO LTD, SEIKO INSTR & ELECTRONICS and SEIKO INSTR INC.

Patent filings per year

Chart showing SUWA SEIKOSHA KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Iwamatsu Seiichi 386
#2 Kanbe Sadao 239
#3 Morozumi Shinji 200
#4 Ootake Tsutomu 182
#5 Kasai Yoshihiko 181
#6 Kawachi Akihiko 173
#7 Hosokawa Minoru 170
#8 Yamada Kuniharu 168
#9 Aoki Kenji 166
#10 Ogata Toshiaki 154

Latest patents

Publication Filing date Title
DE3546846C2 Prepn. of doped silica glass
DE3535388A1 Process for the production of doped quartz glass
GB8524138D0 Method of preparing parent material for optical fibres
GB8524074D0 Methods of preparing doped silica glass
GB8523302D0 Method of making a tubular silica glass member
GB8519756D0 Electronic timepiece
DE3524489A1 2-PHENYLPYRIDINE DERIVATIVES AND METHOD FOR THE PRODUCTION THEREOF
GB8516482D0 Improvements in or relating to electronic timepieces
JPS60259981A Electronic wristwatch
JPS60259980A Analogue electronic timepiece
GB8512986D0 A non-volatile memory circuit
JPS60241640A Cell
FR2565699A1 METHOD OF MODIFYING THE SURFACE OF A BASE MATERIAL COMPRISING CARBONATE AND ALLYL ESTER PATTERNS TO FORMALLY FORM A HARD SURFACE COATING IN THE CASE OF LENSES FOR OPHTHALMIC GLASSES
JPS60260495A Preparation of single crystal of chrysoberyl
SG21985G Transducer for an electronic timepiece
JPS60166884A Preparation of wristwatch case
JPS60167218A Switching structure of watch
JPS60167217A Switching structure of watch
GB8501730D0 Electronic thermometer
JPS60173492A Electronic timepiece