TO

Tadao Odaka

KC Kotobuki & Co.: 13 patents #7 of 77Top 10%
AE Aida Engineering: 2 patents #50 of 163Top 35%
ML Mitsubishi Pencil Company, Limited: 2 patents #127 of 302Top 45%
FC Fujicopian Co.: 1 patents #52 of 97Top 55%
Overall (All Time): #266,855 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
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