Learn more

YOKOYAMA SUMIAKI

Overview
  • Total Patents
    18
  • GoodIP Patent Rank
    157,187
  • Filing trend
    ⇩ 100.0%
About

YOKOYAMA SUMIAKI has a total of 18 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2008. It filed its patents most often in Japan. Its main competitors in its focus markets environmental technology are XUEWEN WANG, TONGLING MEIYU MUSHROOM INDUSTRY CO LTD and NIZHEGORODSKIJ NI RADIOFIZICHE.

Patent filings in countries

World map showing YOKOYAMA SUMIAKIs patent filings in countries
# Country Total Patents
#1 Japan 18

Patent filings per year

Chart showing YOKOYAMA SUMIAKIs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Yokoyama Sumiaki 18
#2 Inayama Hiroyuki 2

Latest patents

Publication Filing date Title
JP2019017798A Stretching/loosening device of leg support in wheelchair
JP2018158001A Overturn prevention device for wheelchair and wheelchair equipped with the same
JP2018086068A Engaging fastener
JP2018000047A Protector for cultivation plant
JP2017192354A Agricultural and horticultural water supply tool
JP2017146185A Cultivation soil material measurement instrument
JP2017019526A Roll-like lengthy sheet body and storage container for storing the same
JP2016198042A Agricultural/horticultural support pillar jointing tool and agricultural/horticultural support pillar erecting tool using the same
JP2016132424A Leg car device with braking mechanism
JP2016016236A Clothespin, rod-like member for laundry, stopper for clothespin, and hanger for laundry
JP2015151709A rainwater storage device
JP2015045419A Sash-window fixed natural evaporation type humidifier
JP2014181041A Built-up funnel
JP2014128894A Underwater aquarium object support tool and decorative body using the same
JP2014054217A Seed bag
JP2009226591A File holder with index tab, and file holder and label used for file holder with index tab
JP2009208431A Paper fastener and file holder
JP2009208357A File holder with display structure such as title