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SEIWA MFG

Overview
  • Total Patents
    43
About

SEIWA MFG has a total of 43 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan. Its main competitors in its focus markets machine tools, optics and electrical machinery and energy are GUANGDONG ZHONGSHI METAL CO LTD, ZHANG WENHUI and HOCHSCHULE FUER ANGEWANDTE WISSENSCHAFTEN FACHHOCHSCHULE KEMPTEN.

Patent filings in countries

World map showing SEIWA MFGs patent filings in countries
# Country Total Patents
#1 Japan 43

Patent filings per year

Chart showing SEIWA MFGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Izawa Ryoji 10
#2 Koyama Kiyoshi 9
#3 Tsunoda Noriaki 8
#4 Fujita Junichi 6
#5 Yoshida Shigeru 3
#6 Sunamura Masayuki 3
#7 Mihashi Eikichi 2
#8 Hagiwara Kiyokuni 2
#9 Abe Harumitsu 2
#10 Oyama Katsumi 2

Latest patents

Publication Filing date Title
JP2006026667A Resistance welding equipment
JP2004358509A Welding head with balance mechanism
JP2004358517A Resistance welding apparatus
JP2004058109A Bonding method
JP2004050236A Heat-pressurizing method
JP2003311428A Display for welding state
JP2002260630A Connection structure and connection method of electrochemical cell
JP2001225173A Resistance welding equipment
JP2001088481A Sheet holding device
JP2000126869A Resistance welding equipment
JPH11295371A Apparatus for detecting state of voltage detection line
JPH11291060A Resistance welding method and its device
JPH11216560A Soldering method and device therefor
JPH1190644A Resistance welding method and its equipment
JPH1050543A Jointing method of wire
JPH09103888A Resistance welding equipment
JPH0945176A Welding method for contact material
JPH0929451A Resistance welding method
JPH0810960A Seam welding equipment
JPH07290249A Seam welding equipment