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AMATSUJI STEEL BALL MFG CO LTD

Overview
  • Total Patents
    48
  • GoodIP Patent Rank
    174,728
  • Filing trend
    ⇩ 83.0%
About

AMATSUJI STEEL BALL MFG CO LTD has a total of 48 patent applications. It decreased the IP activity by 83.0%. Its first patent ever was published in 1999. It filed its patents most often in Japan, United States and China. Its main competitors in its focus markets machine tools, measurement and chemical engineering are WETENSCHAPPELIJK EN TECH ONDER, ENGIS CORP and CT TESTING INT SHENZHEN CO LTD.

Patent filings per year

Chart showing AMATSUJI STEEL BALL MFG CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Nishide Takushi 11
#2 Nagashio Masanori 9
#3 Sakurai Takeshi 7
#4 Kadotani Kenta 5
#5 Okura Tsutomu 5
#6 Matsuoka Mitsuhiro 5
#7 Omori Shigeru 5
#8 Nishide Hiroshi 5
#9 Goto Kazuhiko 5
#10 Takakusa Yukio 4

Latest patents

Publication Filing date Title
JP2018176243A Spheroid manufacturing equipment and manufacturing method
JP2017140679A High-accuracy sphere size measuring apparatus and spherical body polishing device
JP2011079136A Finish-machining device for ball
JP2011043172A Ball for constant velocity joint
JP2011001965A Steel ball for rolling bearing
JP2010281709A Inspection device and inspection method of sphere
JP2010269436A Manufacturing method for ceramic ball and rolling element consisting of the ball
JP2010271045A Visual examination device of ceramics sphere
JP2010243154A Master ball for flaw detector of detecting internal flaw of sphere, method of manufacturing the same, and method of using the same
JP2010243170A Master for flaw detector of detecting internal flaw of sphere, rotary jig exclusive to master, and method for detecting internal flaw of sphere using master
JP2010127621A Automatic sphere inspection method and device for the same with ultrasonic flaw detection system
JP2010127618A Automatic sphere inspection method and device for the same with ultrasonic flaw detection system
JP2010002242A Visual inspection jig of ball and visual inspection method using it
JP2009258033A Automatic sphere inspection method and device with ultrasonic flaw detection system
JP2009125911A Groove forming method of vitrified grinding wheel for sphere machining
JP2009095966A Vertical shaft type polishing machine for machining ball
JP2009095929A Finish-machining device for ball
JP2009085907A Apparatus for inspecting steel ball
JP2009078287A Press machine device
JP2008254095A Sphere machining method and machining device