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HAMAI SANGYO

Overview
  • Total Patents
    124
  • GoodIP Patent Rank
    180,379
  • Filing trend
    0.0%
About

HAMAI SANGYO has a total of 124 patent applications. It increased the IP activity by 0.0%. Its first patent ever was published in 1974. It filed its patents most often in Japan, EPO (European Patent Office) and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets machine tools, semiconductors and control are CINETIC LANDIS LTD, AMBAR INVESTMENT and MASCHB JONSDORF VEB.

Patent filings in countries

World map showing HAMAI SANGYOs patent filings in countries

Patent filings per year

Chart showing HAMAI SANGYOs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Saito Shoji 23
#2 Sugishita Hiroshi 22
#3 Akagi Yoshiyuki 16
#4 Kobayashi Akira 16
#5 Suzuki Junpei 14
#6 Sato Tomoaki 10
#7 Tsukui Minoru 8
#8 Watanabe Yasuo 7
#9 Horie Yoshio 6
#10 Sato Tamataro 5

Latest patents

Publication Filing date Title
JP2019130652A Single-sided polishing device
JP2019005815A Polishing device and dressing method for polishing pad
JP2018039058A Work carrying-in-and-out device and plane processing system
JP2017170573A Separation device, plane polishing device and separation method
JP2017024084A Workpiece carrying-in/out device and plane machining system
JP2016137533A Load control device and plane polishing device
JP2015199184A Workpiece handling device, and workpiece handling method
JP2015074057A Work-piece handling device
JP2015013353A Workpiece release device and release method
JP2015013320A Workpiece fitting device and fitting method
JP2014205224A Double-sided polishing device and polishing method
JP2014079858A Dynamic pressure plane bearing structure and flat surface polishing apparatus
JP2014018944A Lower jig device for six-surface machining machine
JP2014008574A Work carrier
JP2013252582A Gear processing machine
JP2013176825A Polishing device
JP2013173194A Polishing apparatus
JP2013128987A Double-side polishing device
JP2013103321A Polishing system
JP2012223852A Double-side polishing device, and polishing method