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HITACHI LTD

Overview
  • Total Patents
    474,266
  • GoodIP Patent Rank
    47
  • Filing trend
    ⇩ 3.0%
About

HITACHI LTD has a total of 474,266 patent applications. It decreased the IP activity by 3.0%. Its first patent ever was published in 1929. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets semiconductors, environmental technology and computer technology are TOSHIBA CORP, LSI LOGIC CORP and TOSHIBA KK.

Patent filings per year

Chart showing HITACHI LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Yamamoto Akira 922
#2 Maeda Takeshi 799
#3 Yamazaki Susumu 722
#4 Inaba Hiromi 694
#5 Yoneda Kenji 687
#6 Terao Motoyasu 672
#7 Nishijima Hideo 646
#8 Saito Chuichi 633
#9 Okamoto Hiroo 622
#10 Watanabe Masahiro 621

Latest patents

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