Patents/Inventors

Kousuke Ogura

Shinagawa-kuJP3 patents

4 Patents

US124418992025
Ink Composition for Water-based Ballpoint Pen
MITSUBISHI PENCIL COMPANY, LIMITED
0 cites
US122029902025
Aqueous Ink Composition for Ballpoint Pen
MITSUBISHI PENCIL COMPANY, LIMITED
0 cites
US121104012024
Aqueous Ink Composition for Writing Instrument
MITSUBISHI PENCIL COMPANY, LIMITED
0 cites
US116346012023
Aqueous Ink Composition for Ballpoint Pen
MITSUBISHI PENCIL COMPANY, LIMITED
0 cites