Daisaburo Azuma

PK Pentel Kabushiki Kaisha: 2 patents #40 of 170Top 25%

📍 Yashio, JP: #12 of 44 inventorsTop 30%

Overall (All Time): #2,371,618 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
D260533	Penpoint or similar article	—	1981-09-01
4208145	Nib for writing instruments	—	1980-06-17