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HIGH FREQUENCY HEATTREAT

Overview
  • Total Patents
    521
About

HIGH FREQUENCY HEATTREAT has a total of 521 patent applications. Its first patent ever was published in 1984. It filed its patents most often in Japan, China and Republic of Korea. Its main competitors in its focus markets environmental technology, machine tools and materials and metallurgy are FUJI ELECT IND CO LTD, FIALA MILOS and KANEDA SHIGEO.

Patent filings in countries

World map showing HIGH FREQUENCY HEATTREATs patent filings in countries
# Country Total Patents
#1 Japan 517
#2 China 2
#3 Republic of Korea 2

Patent filings per year

Chart showing HIGH FREQUENCY HEATTREATs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Tanaka Yoshimasa 38
#2 Kawasaki Kazuhiro 38
#3 Takase Shinichi 37
#4 Kiyozawa Yutaka 31
#5 Yo Yaku 30
#6 Yokota Seiji 27
#7 Tabuchi Hisashi 26
#8 Ikuta Fumiaki 26
#9 Inoue Yoshiaki 25
#10 Oka Kazutomi 24

Latest patents

Publication Filing date Title
JP2008264873A Core bar and hollow rack bar
JP2008264874A Core bar set and hollow rack bar
JP2008121124A Heat-treatment method using halogen lamp
JP2008115691A Nut anchoring device and reinforcing structure
JP2009046818A Device and construction method for reinforcing structure
JP2009035892A Leakage prevention tube, its coating method, and prestressing steel bar anchoring structure
JP2009035891A Anchoring structure of braking nut and fastening bolt
JP2009019467A Pc-use steel material, its manufacture process and pc structure
JP2009007595A Tempering apparatus and tempering method
JP2007277728A High frequency-induction hardening method
JP2008272800A Pipe joining equipment
JP2008272799A Pipe joining equipment
JP2008272801A Pipe joining equipment
JP2008241666A Chuck device and tensile testing device
JP2008240120A Method for manufacturing hollow rack bar, and hollow rack bar
JP2008240114A Restrained quenching apparatus for thin plate member and method therefor
JP2008238212A Set of mandrel
JP2008229676A Method and device for manufacturing hollow rack bar
JP2008229677A Hollow rack bar, and method and apparatus for reducing diameter of end part of hollow rack bar
JP2008229675A Method and device for manufacturing hollow rack bar