Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4573817 | Mechanical pencil | Mitsuo Maki, Katsuyoshi Kikukawa | 1986-03-04 |
| D278157 | Ball point pen | Mitsuo Maki, Katsuyoshi Kikukawa | 1985-03-26 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4573817 | Mechanical pencil | Mitsuo Maki, Katsuyoshi Kikukawa | 1986-03-04 |
| D278157 | Ball point pen | Mitsuo Maki, Katsuyoshi Kikukawa | 1985-03-26 |