Patents/Inventors

Hirotake Izawa

TokyoJP1 patent

2 Patents

US122270242025
Writing Implement
MITSUBISHI PENCIL COMPANY, LIMITED
0 cites
US121870682025
Fiber-bundled Part for Writing Instruments, and Pen Tip and Writing Instrument Using the Fiber-bundled Part
MITSUBISHI PENCIL COMPANY, LIMITED
0 cites