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HOWA MACHINERY LTD

Overview
  • Total Patents
    2,311
  • GoodIP Patent Rank
    39,909
  • Filing trend
    ⇧ 150.0%
About

HOWA MACHINERY LTD has a total of 2,311 patent applications. It increased the IP activity by 150.0%. Its first patent ever was published in 1954. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets textiles and paper, machine tools and machines are TOYOKATA INDUSTRY CO LTD, JAMES CHARLES POTTER and TOYOWA KOGYO KK.

Patent filings per year

Chart showing HOWA MACHINERY LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Noda Mitsuo 162
#2 Oketani Tetsuya 127
#3 Ogiso Takashi 80
#4 Kurachi Yoshio 76
#5 Kato Haruyuki 68
#6 Tanaka Yutaka 68
#7 Sekiya Shigeki 67
#8 Sasaki Kenji 66
#9 Sato Teruhiko 60
#10 Serizawa Kazuaki 58

Latest patents

Publication Filing date Title
WO2020196582A1 Dust-proof mechanism of chuck, and chuck
WO2020090779A1 Chuck claw coupling mechanism
TW202026075A Chuck claw guide structure and chuck claw insertion method
WO2020032237A1 Chuck grasping accuracy confirmation method, chuck claw replacing method, and chuck grasping accuracy confirmation device
JP2020076286A Waterproof mechanism of top-hinged sliding door
JP2020055043A Machine tool
JP2020055042A Machine tool
JP2019188574A Seal structure of oscillation type chuck
JP2018176419A Chuck parts exchange device
JP2019162682A Hand for pawl exchange of chuck, pawl automatic exchange method of chuck, and pawl automatic exchange system
JP2019077014A Chuck
JP2019027244A Road surface cleaning vehicle
JP2018075673A Multispindle machine tool
JP2017217744A Collet chuck
JP2017220061A Processing history search system
JP2017077589A Chuck
JP2017064856A Chuck
JP2017006958A Press working device
JP2016203236A Press working device
JP2016080128A Rod-less cylinder with guide mechanism