V Spark Co., Ltd.

Japan

 
Total IP 5
Total IP Rank # 308,063
IP Activity Score 0/5.0    0
IP Activity Rank # 1,656,072

Patents

Trademarks

2 0
0 0
3 0
0
 
Last Patent 2016 - Pressure fluctuation buffering m...
First Patent 2013 - Writing instrument

Latest Inventions, Goods, Services

2014 Invention Pressure fluctuation buffering mechanism and applicator. A pressure fluctuation buffering mechani...
Invention Pressure fluctuation buffering mechanism and applicator. The pressure fluctuation buffering mecha...
Invention Knock-type applicator. A knock-type writing instrument including a refill, an outer tube housing...
Invention Knock-type applicator. This knock-type writing implement (2) is provided with a refill (300), an ...
2013 Invention Writing instrument. A writing instrument 2 includes a pen tip mechanism 20, an ink tank 40, an in...
Invention Writing instrument. A writing instrument (2) provided with a pen tip mechanism (20), an ink tank ...