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SHIBAFU ENGINEERING CORP

Overview
  • Total Patents
    51
About

SHIBAFU ENGINEERING CORP has a total of 51 patent applications. Its first patent ever was published in 2000. It filed its patents most often in Japan. Its main competitors in its focus markets electrical machinery and energy and semiconductors are BURGESS LESTER E, SIGMUND COHN CORP and ROHINNI INC.

Patent filings in countries

World map showing SHIBAFU ENGINEERING CORPs patent filings in countries
# Country Total Patents
#1 Japan 51

Patent filings per year

Chart showing SHIBAFU ENGINEERING CORPs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Okutomi Isao 45
#2 Yamamoto Atsushi 42
#3 Kusano Takashi 42
#4 Seki Keisei 18
#5 Honma Mitsutaka 13
#6 Minami Yoshiko 11
#7 Osabe Kiyoshi 8
#8 Oshima Iwao 5
#9 Uchino Hiroshi 3
#10 Ishiwatari Yutaka 3

Latest patents

Publication Filing date Title
JP2010198734A Contact material for vacuum valve, and method of manufacturing the same
JP2006100243A Composite contact, vacuum switch, and manufacturing method of composite contact
JP2006228684A Contact point material for vacuum valve, the vacuum valve, and manufacturing method thereof
JP2006144031A Contact for vacuum valve, and vacuum valve using the same
JP2005310608A Vacuum valve
JP2004332046A Contact material for circuit breaker, and vacuum circuit breaker
JP2004207122A Vacuum interrupter
JP2003176500A Cleanser for removing stain
JP2003138293A Detergent composition
JP2004071436A Vacuum circuit breaker
JP2004071435A Vacuum circuit breaker
JP2004010962A Film with gradient composition and method of forming the film with gradient composition
JP2004014293A Vacuum breker
JP2004014292A Contact and vacuum breaker carrying it
JP2003240719A Method for sensing corona
JP2003226904A Contact material for vacuum valve, manufacturing method thereof, and vacuum valve
JP2003217909A Current limiter
JP2003203544A Contact point material for vacuum valve and method of manufacture
JP2002361478A Ag BRAZING FILLER METAL FOR JOINING AND BRAZING METHOD USING THE SAME
JP2003147457A Contact material, contact material manufacturing method, and vacuum circuit breaker