Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1010733 | Mechanical pencil | Hiroaki Kondo, Hidehei Kageyama, Takaaki Nakata, Tadao Odaka | 2024-01-09 |
| D998038 | Writing instrument | Hiroaki Kondo, Hidehei Kageyama, Takaaki Nakata, Tadao Odaka | 2023-09-05 |
| 11390109 | Mechanical pencil | Hidehei Kageyama | 2022-07-19 |
| 11065907 | Hand tools, cosmetic devices and writing instruments | Hidehei Kageyama | 2021-07-20 |
| D908796 | Sleeve for a mechanical pencil | Hidehei Kageyama | 2021-01-26 |
| D895729 | Mechanical pencil | Hidehei Kageyama | 2020-09-08 |
| D871502 | Sleeve with cushion spring for mechanical pencil | Hidehei Kageyama | 2019-12-31 |
| 10343446 | Writing instrument | Yoshio Noguchi, Hidehei Kageyama | 2019-07-09 |
| 5775123 | Air conditioner air turning vane | Toshiyuki Komuro, Koji Mori, Motomi Yamauchi, Tetsushi Yamashita, Noriaki Kobayashi | 1998-07-07 |