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HITACHI SEIKI KK

Overview
  • Total Patents
    1,018
About

HITACHI SEIKI KK has a total of 1,018 patent applications. Its first patent ever was published in 1972. It filed its patents most often in Japan, United States and Germany. Its main competitors in its focus markets machine tools, control and environmental technology are MAKINO J CO LTD, TRAUB AG and CITIZEN MACHINERY CO LTD.

Patent filings per year

Chart showing HITACHI SEIKI KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Koshiyou Akira 47
#2 Matsumoto Keiichi 46
#3 Tsubota Toshio 40
#4 Sasaki Hideki 39
#5 Oiwa Kazuhiko 38
#6 Takeuchi Mikio 32
#7 Hirata Shigeto 30
#8 Shiratori Hidefumi 29
#9 Kawashima Kiyokuni 29
#10 Kikuchi Takeomi 28

Latest patents

Publication Filing date Title
JP2003048137A Work inverting device of machine tool, and work inverting method in the device
JP2003053601A Machine tool and machining system
JP2003039267A Work conveyor and processing system
JP2003011030A Work piece conveying apparatus and machining system
JP2002355729A Automatic tool changing device for machine tool
JP2002346806A Workpiece reversal equipment and processing method in main shaft movement type machine tool
JP2002210635A Instrumentation method of workpiece dimension by electric chuck
JP2002192410A Motor-driven chuck device
JP2002126975A Fixed cycle command preparation supporting method and nc device
JP2002126969A Machine tool
JP2002132312A Numerical controller capable of display data setting
JP2002103115A Machine tool for composite machining
JP2002096209A Turret tool rest
JP2002086302A Tool rest of turning center
JP2002059302A Work reversing device for main spindle traveling type vertical machine tool
JP2002052403A Workpiece placing apparatus in spindle moving type vertical machine tool
JP2002052435A Control method for chuck opened and closed by a spindle motor and machine tool having chuck opened and closed by spindle motor
JP2002011601A Lathe
JP2001341003A Bar-shaped workpiece supplying method and device
JP2001341048A Splash guard for main spindle moving type machine tool