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CITIZEN WATCH CO LTD

Overview
  • Total Patents
    18,484
  • GoodIP Patent Rank
    1,254
  • Filing trend
    ⇧ 25.0%
About

CITIZEN WATCH CO LTD has a total of 18,484 patent applications. It increased the IP activity by 25.0%. Its first patent ever was published in 1957. It filed its patents most often in Japan, United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets measurement, optics and machine tools are SUWA SEIKOSHA KK, SEIKO INSTR INC and CITIZEN HOLDINGS CO LTD.

Patent filings per year

Chart showing CITIZEN WATCH CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sekiguchi Kanetaka 330
#2 Morokawa Shigeru 320
#3 Ichikawa Shingo 283
#4 Toida Takashi 275
#5 Togashi Seigo 239
#6 Sekiya Fukuo 201
#7 Nishimura Katsuo 199
#8 Tamaru Munetaka 196
#9 Akiyama Takashi 177
#10 Murakami Tomomi 177

Latest patents

Publication Filing date Title
WO2021059837A1 Step motor drive device
WO2021039857A1 Video generation device
WO2021049285A1 Detection device and detection system
WO2021059804A1 Processing apparatus, processing method, and processing system
WO2021044834A1 Machine tool and control device for machine tool
JP2020197537A Event notification system, electronic timepiece, and event notification method
JP2020197538A Event notification system, electronic timepiece, and event notification method
CH716535A2 Grease composition for precision instrument and timepiece using it.
WO2021075133A1 Machine tool
WO2021059717A1 Electronic timepiece
CN112280420A Two-pack type epoxy resin composition, timepiece component, and luminous case
WO2021015075A1 Machining device, control device used thereby, and machining device control method
WO2021015064A1 Tool information setting device and machine tool
WO2021006356A1 Device for detecting substance being measured
JP2020170017A Time correction system, electronic device, program, and time correction method
JP2020170018A Time correction system, electronic device, program, and time correction method
CN111938617A Sphygmomanometer cuff
JP2020161176A Automatic detection Autonomous mobile device
WO2021002153A1 Clamp device
JP2020148782A System of controlling communication between electronic timepiece and electronic apparatus, and electronic timepiece