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SHIBAFU ENGINEERING KK

Overview
  • Total Patents
    53
About

SHIBAFU ENGINEERING KK has a total of 53 patent applications. Its first patent ever was published in 1997. It filed its patents most often in Japan. Its main competitors in its focus markets semiconductors, electrical machinery and energy and environmental technology are BURGESS LESTER E, SHIBAFU ENGINEERING CORP and SAKAMOTO HAJIME.

Patent filings in countries

World map showing SHIBAFU ENGINEERING KKs patent filings in countries
# Country Total Patents
#1 Japan 53

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Okutomi Isao 41
#2 Yamamoto Atsushi 38
#3 Kusano Takashi 37
#4 Ishiwatari Yutaka 17
#5 Seki Keisei 16
#6 Nishimura Takanobu 16
#7 Tanaka Akira 11
#8 Honma Mitsutaka 9
#9 Uchino Hiroshi 9
#10 Araki Koji 7

Latest patents

Publication Filing date Title
JP2001202858A Vacuum bulb jointing material and method of manufacturing vacuum bulb using the same
JP2001168252A Semiconductor device and manufacturing method thereof
JP2001078464A Controller for power converter
JP2001052909A Liquid resistor
JP2001023482A Contact material for vacuum valve
JP2000349100A Bonding material and its manufacture, and semiconductor device
JP2000129373A Production of vacuum valve contact material
JP2000333307A Fuel storage device of electric car
JP2000313896A Water-soluble cutting fluid
JP2000307041A Production of modular semiconductor device
JP2000308349A Frequency converter
JP2000294094A Joint layer for vacuum valve member
JP2000253579A Series compensator
JP2000139085A Power-converting device
JP2000226631A Vacuum valve and vacuum opening/closing device
JP2000215925A Electrically connecting body
JP2000209772A Current limiter
JP2000200865A Insulating board and semiconductor device
JP2000188028A Slide contact device and contact material
JP2000183280A Semiconductor element, semiconductor device and power conversion device