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SANWA KIZAI CO LTD

Overview
  • Total Patents
    393
  • GoodIP Patent Rank
    65,289
  • Filing trend
    ⇩ 50.0%
About

SANWA KIZAI CO LTD has a total of 393 patent applications. It decreased the IP activity by 50.0%. Its first patent ever was published in 1969. It filed its patents most often in Japan, United Kingdom and Italy. Its main competitors in its focus markets civil engineering, environmental technology and electrical machinery and energy are BLADE OFFSHORE SERVICES LTD, BIGNELL EDWARD and SHANGHAI CHENGDI CONSTRUCTION CO LTD.

Patent filings in countries

World map showing SANWA KIZAI CO LTDs patent filings in countries

Patent filings per year

Chart showing SANWA KIZAI CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hamano Mamoru 102
#2 Akiba Toshiyasu 56
#3 Torikai Mitsutoshi 48
#4 Yamazaki Kazuo 43
#5 Saito Mamoru 40
#6 Hirakawa Etsuo 34
#7 Minami Mitsushige 32
#8 Yamada Shigeru 28
#9 Tanaka Toshio 23
#10 Hayashi Satoichi 21

Latest patents

Publication Filing date Title
JP2020186619A Multi-shaft drilling device
JP2020180536A Repair time estimation method and device for swivel device used in excavator
JP2020092290A Radio remote operation apparatus
JP2020045729A Apparatus for recording and protecting operating state of drilling apparatus, and method for recording and protecting operating state of drilling apparatus
JP2019119998A Multi-axis type drilling and stirring apparatus and multi-axis type drilling and stirring method
JP2019119999A Sample recovery device and sample recovery method
JP2019043709A Suspension metal fitting and method for using suspension metal fitting
JP2019019468A Unsolidified liquid recovery device and unsolidified liquid recovery method
JP2018021571A Rotary joint and use method of rotary joint
JP2018017261A Rotary joint and use method of rotary joint
JP2018012944A Operation mechanism of underground work device and use method of underground work device
JP2018003557A Mechanism and method for supporting transfer hose
JP2017227066A Expansion digging apparatus for cast pile and expansion digging method for cast pile
JP2017227067A Boring apparatus
JP2017043921A Machine and method for constructing continuous wall
JP2016204940A Excavator
JP2016142036A Ground improvement device
JP2016142038A Ground improvement device
JP2016142037A Ground improvement device and ground improvement method
JP2016098544A Cutter head for crushing