Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1010733 | Mechanical pencil | Hiroaki Kondo, Hidehei Kageyama, Takaaki Nakata, Takeshi Wakayama | 2024-01-09 |
| D998038 | Writing instrument | Hiroaki Kondo, Hidehei Kageyama, Takaaki Nakata, Takeshi Wakayama | 2023-09-05 |
| 11090969 | Mechanical pencil | Hidehei Kageyama, Toshikazu Sasaki | 2021-08-17 |
| 10603948 | Mechanical pencil | Yoshio Noguchi | 2020-03-31 |
| 10589563 | Composite writing implement | — | 2020-03-17 |
| 9738112 | Mechanical pencil | Hidehei Kageyama | 2017-08-22 |
| 8484808 | Clip attachment structure for a writing instrument | Hidehei Kageyama | 2013-07-16 |
| 7254870 | Clip fixing structure | Hidehei Kageyama | 2007-08-14 |
| 7210869 | Cartridge type stationery product | Hidehei Kageyama | 2007-05-01 |
| 7014380 | Composite holding tool | Masahiko Ono, Kazuya Watanabe, Tadashi Keda | 2006-03-21 |
| 6994484 | Composite writing tool | Hidehei Kageyama | 2006-02-07 |
| 6939069 | Composite writing utensil | — | 2005-09-06 |
| 6895640 | Clip attaching structure | — | 2005-05-24 |
| 6783292 | Double-chuck mechanical pencil | Sachio Arai | 2004-08-31 |
| 6702158 | Knocking-type liquid container | Hidehei Kageyama, Yoshio Noguchi, Tadashi Keda | 2004-03-09 |
| 4741195 | Apparatus for clamping and unclamping feed bars for a transfer press | Toshihiko Arai, Masaharu Kusunoki, Shozo Imanishi, Yoshinori Kato, Masakazu Hashimoto +1 more | 1988-05-03 |
| 4728253 | Apparatus for advancing and returning feed bars for a transfer press | Susumu Oba, Kenji Kurishima, Masaharu Kusunoki, Toshihiko Arai | 1988-03-01 |