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NISSIN UNYU KOGYO CO LTD

Overview
  • Total Patents
    18
About

NISSIN UNYU KOGYO CO LTD has a total of 18 patent applications. Its first patent ever was published in 1998. It filed its patents most often in United States, EPO (European Patent Office) and Canada. Its main competitors in its focus markets machine tools, surface technology and coating and machines are CHENGDU HONF TECH CO LTD, OCONNOR THOMAS JOHN and HAMMOND MACHINERY BUILDERS INC.

Patent filings per year

Chart showing NISSIN UNYU KOGYO CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Akagi Kazuo 18
#2 Nakashima Yoshimitu 6
#3 Hashimoto Akira 6
#4 Sasaki Toshihiko 5
#5 Takahashi Koji 5
#6 Inoue Katsuhiko 5
#7 Azuma Youji 3
#8 Aiura Sunao 3
#9 Akiyoshi Tomohisa 3
#10 Tomita Masafumi 3

Latest patents

Publication Filing date Title
EP1000694A2 Electrolytic integrated polishing method for metal workpieces using special abrasive materials
CA2285169A1 Method for mirror process of external surface of long sized metal
EP0994394A2 Method for manufacturing mirror surface tube for photosensitive drum of copying machine or the like
CA2273409A1 Electrolytic integrated polishing method for external surface of metallic tubes and photosensitive drum substrate prepared thereby
WO9848968A1 Method and device for electrolytic composite polishing of inner surface of long metal pipe