Yoshihiro Kanzaka

YK Yoshida Kogyo K.K.: 19 patents #15 of 468Top 4%

NC Nippon Notion Kogyo Co.: 5 patents #2 of 16Top 15%

NC Nitto Boseki Co.: 2 patents #91 of 339Top 30%

YK Ykk: 1 patents #472 of 845Top 60%

📍 Nyuzen, JP: #1 of 19 inventorsTop 6%

Overall (All Time): #148,120 of 4,157,543Top 4%

Patents All Time

Issued Patents All Time

Showing 26–27 of 27 patents

Patent #	Title	Co-Inventors	Date
4202285	Presser foot for concealed slide fasteners	—	1980-05-13
4193172	Ornamental attachment for slide fastener sliders	—	1980-03-18