Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D326043 | Electric screw driver | Hideaki Hasegawa, Shigehisa Hagura, Kazuyuki Tuburaya, Masaru Oda | 1992-05-12 |
| D325857 | Screw driver | Hideaki Hasegawa, Shigehisa Hagura, Kazuyuki Tuburaya | 1992-05-05 |