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YAMAUCHI KOSAKU

Overview
  • Total Patents
    19
  • GoodIP Patent Rank
    139,435
  • Filing trend
    ⇩ 33.0%
About

YAMAUCHI KOSAKU has a total of 19 patent applications. It decreased the IP activity by 33.0%. Its first patent ever was published in 2012. It filed its patents most often in Japan. Its main competitors in its focus markets environmental technology are JIANGSU SIDA POWER MECHANICAL GROUP CO LTD, STARTSEV VLADIMIR A and DUDYSHEV VALERIJ DMITRIEVICH.

Patent filings in countries

World map showing YAMAUCHI KOSAKUs patent filings in countries
# Country Total Patents
#1 Japan 19

Patent filings per year

Chart showing YAMAUCHI KOSAKUs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Yamauchi Kosaku 19

Latest patents

Publication Filing date Title
JP2021006711A Expansion/compression stroke ratio, compression ratio continuously variable device
JP2020112152A Continuous variable device of stroke volume and compression ratio with approximately symmetrical sine stroke curve in three-piece connecting rod
JP2020029857A Three-division connecting rod approximate sine wave stroke volume compression ratio continuously variable device
JP2019167945A Three-divided connecting rod type stroke volume and compression ratio continuous variable device
JP2019094888A Upper and lower dead point crank angle approx. 180° halved connection rod l-type yoke stroke volume continuous variable device
JP2019007473A L-shape yoke type stroke volume continuous variable device with cross-head mechanism
JP2018115647A Two-piece housing connecting rod l-shaped yoke type cylinder capacity continuous variable device with piston top dead center and bottom dead center and compression ratio limiter
JP2017223210A Two-piece housing connecting rod l-shaped yoke opposing piston type stroke capacity continuous variable device
JP2017106428A Two-piece connecting rod l-shaped yoke type stroke volume continuous variable device
JP2017025895A Opposing piston-shaft crank stroke volume continuous variable device
JP2016109109A Stroke volume continuous variable device
JP2015169203A Parallel double shafts cranks-crank holder swing type compression ratio variable device
JP2015075095A Crank holder swing type compression ratio variable device
JP2014159802A Three-dimensional cam type continuous stepless variable valve gear with one exhaust shaft and twin intake cam shafts
JP2014077428A Continuous stepless variable valve device with intake double cam shafts and 3d cams
JP2014020358A Inner shaft slide-type cam phase variable valve gear
JP2013221495A Roller rocker arm type three-dimensional cam continuous and stepless variable valve gear
JP2013217359A Roller rocker arm type sohc compulsive opening and closing valve device
JP2013217358A Roller rocker arm type compulsive opening and closing valve device