HK

Hidehei Kageyama

KC Kotobuki & Co.: 5 patents #1 of 8Top 15%
Overall (2002): #9,550 of 266,432Top 4%
5
Patents 2002

Issued Patents 2002

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6453516 Clip mounting structure 2002-09-24
6447193 Writing utensils Osamu Takahashi 2002-09-10
6390707 Knocking writing utensil Yoshio Noguchi 2002-05-21
6382859 Double chuck type mechanical pencil and internal writing mechanism thereof Yoshio Noguchi 2002-05-07
6379067 Double-chuck mechanical pencil Yoshihide Mitsuya, Tadayoshi Ebinuma 2002-04-30