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TOKYO SEIMITSU CO LTD

Overview
  • Total Patents
    4,160
  • GoodIP Patent Rank
    1,719
  • Filing trend
    ⇧ 12.0%
About

TOKYO SEIMITSU CO LTD has a total of 4,160 patent applications. It increased the IP activity by 12.0%. Its first patent ever was published in 1970. It filed its patents most often in Japan, United States and Taiwan. Its main competitors in its focus markets machine tools, semiconductors and measurement are WISYS CO LTD, JIANGSU YINGRUI SEMICONDUCTOR CO LTD and KNJ CO LTD.

Patent filings per year

Chart showing TOKYO SEIMITSU CO LTDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Fujita Takashi 347
#2 Inaba Takao 158
#3 Azuma Masayuki 132
#4 Shimizu Tasuku 130
#5 Numamoto Minoru 102
#6 Shibaoka Shinji 89
#7 Ametani Minoru 84
#8 Honda Katsuo 81
#9 Kanazawa Masaki 69
#10 Sakai Kenji 67

Latest patents

Publication Filing date Title
JP2021006361A Ultrasonic tool and method of manufacturing the same
JP2020205443A Wafer surface treatment device
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JP2020194984A Work division device
WO2021010304A1 Measurement apparatus
JP2020174198A Grinder and grinding method
JP2020181987A Polisher and polishing method
JP2020129011A Device and method for detecting cracks
JP2020155780A Temperature imparting device and temperature imparting method
JP2020114527A Storage box system, storage box management device, and method
JP2020128991A Three-dimensional measurer, measurement method, and measurement program
JP2020112573A Encoder having linear scale and its origin point determination method
JP2020126244A Optical modulator and optical modulation method
JP2020115549A Prober
WO2020184678A1 Three-dimensional measuring system, and three-dimensional measuring method
JP2020153977A Three-dimensional measurement system and three-dimensional measurement method
JP2020146833A Work-piece processing device and method
WO2020179790A1 Workpiece processing device and method
JP2020079805A Distance measurement device and distance measurement method
JP2020074496A Prober